From 1bc1538613d66cef3cbce680fc8d7c3561a0fbd0 Mon Sep 17 00:00:00 2001 From: Peter Tyser Date: Fri, 10 Jul 2009 11:03:19 -0500 Subject: Move examples/ to examples/standalone The current files in examples are all standalone application examples, so put them in their own subdirectory for organizational purposes Signed-off-by: Peter Tyser diff --git a/Makefile b/Makefile index 4fe3232..9ffba2e 100644 --- a/Makefile +++ b/Makefile @@ -140,7 +140,7 @@ endif # The "tools" are needed early, so put this first # Don't include stuff already done in $(LIBS) SUBDIRS = tools \ - examples \ + examples/standalone \ api_examples .PHONY : $(SUBDIRS) @@ -3592,11 +3592,15 @@ grsim_leon2_config : unconfig ######################################################################### clean: - @rm -f $(obj)examples/82559_eeprom $(obj)examples/eepro100_eeprom \ - $(obj)examples/hello_world $(obj)examples/interrupt \ - $(obj)examples/mem_to_mem_idma2intr \ - $(obj)examples/sched $(obj)examples/smc91111_eeprom \ - $(obj)examples/test_burst $(obj)examples/timer + @rm -f $(obj)examples/standalone/82559_eeprom \ + $(obj)examples/standalone/eepro100_eeprom \ + $(obj)examples/standalone/hello_world \ + $(obj)examples/standalone/interrupt \ + $(obj)examples/standalone/mem_to_mem_idma2intr \ + $(obj)examples/standalone/sched \ + $(obj)examples/standalone/smc91111_eeprom \ + $(obj)examples/standalone/test_burst \ + $(obj)examples/standalone/timer @rm -f $(obj)tools/bmp_logo $(obj)tools/easylogo/easylogo \ $(obj)tools/env/{fw_printenv,fw_setenv} \ $(obj)tools/envcrc \ diff --git a/examples/.gitignore b/examples/.gitignore deleted file mode 100644 index 0d1864c..0000000 --- a/examples/.gitignore +++ /dev/null @@ -1,11 +0,0 @@ -/82559_eeprom -/hello_world -/interrupt -/mem_to_mem_idma2intr -/test_burst -/timer -/sched -/smc91111_eeprom -/smc911x_eeprom -*.bin -*.srec diff --git a/examples/82559_eeprom.c b/examples/82559_eeprom.c deleted file mode 100644 index 5e2eee9..0000000 --- a/examples/82559_eeprom.c +++ /dev/null @@ -1,357 +0,0 @@ - -/* - * Copyright 1998-2001 by Donald Becker. - * This software may be used and distributed according to the terms of - * the GNU General Public License (GPL), incorporated herein by reference. - * Contact the author for use under other terms. - * - * This program must be compiled with "-O"! - * See the bottom of this file for the suggested compile-command. - * - * The author may be reached as becker@scyld.com, or C/O - * Scyld Computing Corporation - * 410 Severn Ave., Suite 210 - * Annapolis MD 21403 - * - * Common-sense licensing statement: Using any portion of this program in - * your own program means that you must give credit to the original author - * and release the resulting code under the GPL. - */ - -#define _PPC_STRING_H_ /* avoid unnecessary str/mem functions */ - -#include -#include -#include - - -/* Default EEPROM for i82559 */ -static unsigned short default_eeprom[64] = { - 0x0100, 0x0302, 0x0504, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, - 0xffff, 0xffff, 0x40c0, 0x0000, 0x0000, 0xffff, 0xffff, 0xffff, - 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, - 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, - 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, - 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, - 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, - 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff -}; - -static unsigned short eeprom[256]; - -static int eeprom_size = 64; -static int eeprom_addr_size = 6; - -static int debug = 0; - -static inline unsigned short swap16(unsigned short x) -{ - return (((x & 0xff) << 8) | ((x & 0xff00) >> 8)); -} - - -void * memcpy(void * dest,const void *src,size_t count) -{ - char *tmp = (char *) dest, *s = (char *) src; - - while (count--) - *tmp++ = *s++; - - return dest; -} - - -/* The EEPROM commands include the alway-set leading bit. */ -#define EE_WRITE_CMD (5) -#define EE_READ_CMD (6) -#define EE_ERASE_CMD (7) - -/* Serial EEPROM section. */ -#define EE_SHIFT_CLK 0x01 /* EEPROM shift clock. */ -#define EE_CS 0x02 /* EEPROM chip select. */ -#define EE_DATA_WRITE 0x04 /* EEPROM chip data in. */ -#define EE_DATA_READ 0x08 /* EEPROM chip data out. */ -#define EE_ENB (0x4800 | EE_CS) -#define EE_WRITE_0 0x4802 -#define EE_WRITE_1 0x4806 -#define EE_OFFSET 14 - -/* Delay between EEPROM clock transitions. */ -#define eeprom_delay(ee_addr) inw(ee_addr) - -/* Wait for the EEPROM to finish the previous operation. */ -static int eeprom_busy_poll(long ee_ioaddr) -{ - int i; - outw(EE_ENB, ee_ioaddr); - for (i = 0; i < 10000; i++) /* Typical 2000 ticks */ - if (inw(ee_ioaddr) & EE_DATA_READ) - break; - return i; -} - -/* This executes a generic EEPROM command, typically a write or write enable. - It returns the data output from the EEPROM, and thus may also be used for - reads. */ -static int do_eeprom_cmd(long ioaddr, int cmd, int cmd_len) -{ - unsigned retval = 0; - long ee_addr = ioaddr + EE_OFFSET; - - if (debug > 1) - printf(" EEPROM op 0x%x: ", cmd); - - outw(EE_ENB | EE_SHIFT_CLK, ee_addr); - - /* Shift the command bits out. */ - do { - short dataval = (cmd & (1 << cmd_len)) ? EE_WRITE_1 : EE_WRITE_0; - outw(dataval, ee_addr); - eeprom_delay(ee_addr); - if (debug > 2) - printf("%X", inw(ee_addr) & 15); - outw(dataval | EE_SHIFT_CLK, ee_addr); - eeprom_delay(ee_addr); - retval = (retval << 1) | ((inw(ee_addr) & EE_DATA_READ) ? 1 : 0); - } while (--cmd_len >= 0); -#if 0 - outw(EE_ENB, ee_addr); -#endif - /* Terminate the EEPROM access. */ - outw(EE_ENB & ~EE_CS, ee_addr); - if (debug > 1) - printf(" EEPROM result is 0x%5.5x.\n", retval); - return retval; -} - -static int read_eeprom(long ioaddr, int location, int addr_len) -{ - return do_eeprom_cmd(ioaddr, ((EE_READ_CMD << addr_len) | location) - << 16 , 3 + addr_len + 16) & 0xffff; -} - -static void write_eeprom(long ioaddr, int index, int value, int addr_len) -{ - long ee_ioaddr = ioaddr + EE_OFFSET; - int i; - - /* Poll for previous op finished. */ - eeprom_busy_poll(ee_ioaddr); /* Typical 0 ticks */ - /* Enable programming modes. */ - do_eeprom_cmd(ioaddr, (0x4f << (addr_len-4)), 3 + addr_len); - /* Do the actual write. */ - do_eeprom_cmd(ioaddr, - (((EE_WRITE_CMD</dev/null - -$(BIN): -$(obj)%.bin: $(obj)% - $(OBJCOPY) -O binary $< $@ 2>/dev/null - -######################################################################### - -# defines $(obj).depend target -include $(SRCTREE)/rules.mk - -sinclude $(obj).depend - -######################################################################### diff --git a/examples/README.smc91111_eeprom b/examples/README.smc91111_eeprom deleted file mode 100644 index 28e7e69..0000000 --- a/examples/README.smc91111_eeprom +++ /dev/null @@ -1,246 +0,0 @@ -This is the readme for the Das U-Boot standalone program smc91111 - -The main purpose of this is to manage MAC addresses on platforms -which include the SMC91111 integrated 10/100 MAC Phy, with attached -EEPROMs. - - -Contents: ------------------------- -1. Ensuring U-boot's MAC address can be set in hardware -2. Running the smc91111_eeprom program -3. Setting MAC addresses -4. Other things you can do with this -5. Things to be done. - - -1. Ensuring U-boot's MAC address can be set in hardware --------------------------------------------------------------------------- - -On the Internet - MAC addresses are very important. Short for Media -Access Control address, a hardware address that uniquely identifies -each node of a network. When things are not unique - bad things -can happen. This is why U-Boot makes it difficult to change MAC -addresses. - -To find out who has a MAC address, or to purchase MAC addresses, goto -the IEEE, at: -http://standards.ieee.org/regauth/oui/index.shtml - -To change your MAC address, there can not be a MAC address predefined in -U-Boot. To ensure that this does not occur, check your -include/configs/.h file, and check to see that the following -settings are _not_ or commented out there. - -#define HARDCODE_MAC 1 -#define CONFIG_ETHADDR 02:80:ad:20:31:b8 - -The purpose of HARDCODE_MAC is to hardcode the MAC address in software, -(not what we want), or to preset it to 02:80:ad:20:31:b8 (not what we -want either). - -You can check this in a running U-Boot, by doing a power cycle, then -before U-Boot tries to do any networking, running the 'printenv' command - - BOOT> printenv - - ethaddr=02:80:ad:20:31:b8 - -If you see the 'ethaddr' variable show up, like the above, you need to -recompile U-Boot, with the above settings commented out of the -include/configs/.h file. - -2. Running the smc91111_eeprom program ---------------------------------------------------------------------- - -After Uboot is compiled, there should be three files of interest: --rwxr-xr-x 1 8806 2004-10-11 14:00 smc91111_eeprom <- ELF --rwxr-xr-x 1 3440 2004-10-11 14:00 smc91111_eeprom.bin <- BIN --rwxr-xr-x 1 9524 2004-10-11 14:00 smc91111_eeprom.srec <- SREC - -if there is not, check the examples/Makefile, and ensure there is something -like for your architecture: - - ifeq ($(ARCH),blackfin) - SREC += smc91111_eeprom.srec - BIN += smc91111_eeprom.bin smc91111_eeprom - endif - -To load the files: there are two methods: a) serial or b) network. Since -it is not a good idea to start doing things on the network before the -MAC address is set, this example will do things over serial. - -a) Loading the elf file via the serial port --------------------------------------------- -Loading the elf is very easy - just ensure that the location -you specify things to load as is not the load address specified -in the Makefile. - -BOOT> loadb 0x1000000 - -## Ready for binary (kermit) download to 0x01000000 at 57600 bps... - -(type CNTL-\ then C) -(Back at local machine) ----------------------------------------------------- -Kermit>send ~/u-boot_1.1.1/examples/smc91111_eeprom -Kermit>connect - -Connecting to /dev/ttyS0, speed 57600 - Escape character: Ctrl-\ (ASCII 28, FS): enabled -Type the escape character followed by C to get back, -or followed by ? to see other options. ----------------------------------------------------- -## Total Size = 0x00002266 = 8806 Bytes -## Start Addr = 0x01000000 - -BOOT> bootelf 0x1000000 - -Loading .text @ 0x00001000 (3440 bytes) -## Starting application at 0x000010d8 ... - -SMC91111> - -b) Loading the binary file via the serial port ------------------------------------------------ -For many toolchains, the entry point is not the load point. -The Load point is a hard coded address from the -examples/Makefile. The entry point can be found by doing something -like: - - u-boot_1.1.1/examples> bfin-elf-objdump -d smc91111_eeprom |less - - smc91111_eeprom: file format elf32-bfin - - Disassembly of section .text: - - 00001000 : - 1000: - 000010d8 : - -You can see that the entry point (or the address that should be -jumped to is 0x10d8). This is also the same as the entry point -of the elf file. - -Now we load it to the actual load location: - -BOOT> loadb 0x1000 - -## Ready for binary (kermit) download to 0x00001000 at 57600 bps... - -(Back at pinky.dsl-only.net) ----------------------------------------------------- -Kermit>send /tftpboot/eeprom.bin -Kermit>connect - -Connecting to /dev/ttyS0, speed 57600 - Escape character: Ctrl-\ (ASCII 28, FS): enabled -Type the escape character followed by C to get back, -or followed by ? to see other options. ----------------------------------------------------- -## Total Size = 0x00000d70 = 3440 Bytes -## Start Addr = 0x00001000 - -BOOT> go 0x10D8 - -## Starting application at 0x000010D8 ... - -SMC91111> - -3. Setting MAC addresses --------------------------------------------------------------------------- - -The MAC address can be stored in four locations: - --Boot environmental variable in Flash <- can not change, without - re-flashing U-boot. -U-Boot environental variable <- can not change, without - resetting board/U-Boot -LAN91C111 Registers <- volitle -LAN91C111 EEPROM <- Non Volitle - -If you have not activated the network, and do not have a hardcoded -or pre-assigned MAC address in U-boot, the environmental variables -should be blank, and allow you to set things one time. - -To set the EEPROM MAC address to 12:34:56:78:9A:BC - -SMC91111> W E 20 3412 - -Writing EEPROM register 20 with 3412 -SMC91111> W E 21 7856 - -Writing EEPROM register 21 with 7856 -SMC91111> W E 22 BC9A - -Writing EEPROM register 22 with bc9a -EEPROM contents copied to MAC -SMC91111> P - -Current MAC Address in SMSC91111 12:34:56:78:9a:bc -Current MAC Address in EEPROM 12:34:56:78:9a:bc - -(CNTRL-C to exit) -SMC91111> ## Application terminated, rc = 0x0 - -BOOT> reset -U-Boot 1.1.1 (gcc version: 3.3.3) -Release Version Beta released on Oct 10 2004 - 00:34:35 -Blackfin support by LG Soft India -For further information please check this link http://www.blackfin.uclinux.org -BOOT> ping 192.168.0.4 - -Using MAC Address 12:34:56:78:9A:BC -host 192.168.0.4 is alive - - -4. Other things that you can do --------------------------------------------------------------------------- -After the stand alone application is running, there are a few options: - - P : Print the MAC - - D : Dump the LAN91C111 EEPROM contents - - M : Dump the LAN91C111 MAC contents - - C : Copies the MAC address from the EEPROM to the LAN91C111 - - W : Write a register in the EEPROM or in the MAC - -SMC91111> P - -Current MAC Address in SMSC91111 12:34:56:78:9a:bc -Current MAC Address in EEPROM 12:34:56:78:9a:bc - -SMC91111> D - -IOS2-0 000 001 002 003 004 005 006 007 -CONFIG 00:ffff 04:ffff 08:ffff 0c:ffff 10:ffff 14:ffff 18:ffff 1c:ffff -BASE 01:ffff 05:ffff 09:ffff 0d:ffff 11:ffff 15:ffff 19:ffff 1d:ffff - 02:ffff 06:ffff 0a:ffff 0e:0020 12:ffff 16:ffff 1a:ffff 1e:ffff - 03:ffff 07:ffff 0b:ffff 0f:ffff 13:ffff 17:ffff 1b:ffff 1f:ffff - -20:3412 21:7856 22:bc9a 23:ffff 24:ffff 25:ffff 26:ffff 27:ffff -28:ffff 29:ffff 2a:ffff 2b:ffff 2c:ffff 2d:ffff 2e:ffff 2f:ffff -30:ffff 31:ffff 32:ffff 33:ffff 34:ffff 35:ffff 36:ffff 37:ffff -38:ffff 39:ffff 3a:ffff 3b:ffff 3c:ffff 3d:ffff 3e:ffff 3f:ffff - -SMC91111> M - - Bank0 Bank1 Bank2 Bank3 -00 0000 a0b1 3332 0000 -02 0000 1801 8000 0000 -04 0000 3412 8080 0000 -06 0000 7856 003f 0000 -08 0404 bc9a 02df 3332 -0a 0000 ffff 02df 3391 -0c 0000 1214 0004 001f -0e 3300 3301 3302 3303 - -SMC91111> C - -EEPROM contents copied to MAC - -SMC91111> W E 2A ABCD - -Writing EEPROM register 2a with abcd - -SMC91111> W M 14 FF00 - -Writing MAC register bank 1, reg 04 with ff00 diff --git a/examples/eepro100_eeprom.c b/examples/eepro100_eeprom.c deleted file mode 100644 index 2b15d05..0000000 --- a/examples/eepro100_eeprom.c +++ /dev/null @@ -1,215 +0,0 @@ -/* - * Copyright 1998-2001 by Donald Becker. - * This software may be used and distributed according to the terms of - * the GNU General Public License (GPL), incorporated herein by reference. - * Contact the author for use under other terms. - * - * This program must be compiled with "-O"! - * See the bottom of this file for the suggested compile-command. - * - * The author may be reached as becker@scyld.com, or C/O - * Scyld Computing Corporation - * 410 Severn Ave., Suite 210 - * Annapolis MD 21403 - * - * Common-sense licensing statement: Using any portion of this program in - * your own program means that you must give credit to the original author - * and release the resulting code under the GPL. - */ - -/* avoid unnecessary memcpy function */ -#define __HAVE_ARCH_MEMCPY -#define _PPC_STRING_H_ - -#include -#include - -static int reset_eeprom(unsigned long ioaddr, unsigned char *hwaddr); - -int eepro100_eeprom(int argc, char *argv[]) -{ - int ret = 0; - - unsigned char hwaddr1[6] = { 0x00, 0x00, 0x02, 0x03, 0x04, 0x05 }; - unsigned char hwaddr2[6] = { 0x00, 0x00, 0x02, 0x03, 0x04, 0x06 }; - - app_startup(argv); - -#if defined(CONFIG_OXC) - ret |= reset_eeprom(0x80000000, hwaddr1); - ret |= reset_eeprom(0x81000000, hwaddr2); -#endif - - return ret; -} - -/* Default EEPROM for i82559 */ -static unsigned short default_eeprom[64] = { - 0x0100, 0x0302, 0x0504, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, - 0xffff, 0xffff, 0x40c0, 0x0000, 0x0000, 0xffff, 0xffff, 0xffff, - 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, - 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, - 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, - 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, - 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, - 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff -}; - -static unsigned short eeprom[256]; - -static int eeprom_size = 64; -static int eeprom_addr_size = 6; - -static int debug = 0; - -static inline unsigned short swap16(unsigned short x) -{ - return (((x & 0xff) << 8) | ((x & 0xff00) >> 8)); -} - -static inline void outw(short data, long addr) -{ - *(volatile short *)(addr) = swap16(data); -} - -static inline short inw(long addr) -{ - return swap16(*(volatile short *)(addr)); -} - -static inline void *memcpy(void *dst, const void *src, unsigned int len) -{ - char *ret = dst; - while (len-- > 0) { - *ret++ = *((char *)src); - src++; - } - return (void *)ret; -} - -/* The EEPROM commands include the alway-set leading bit. */ -#define EE_WRITE_CMD (5) -#define EE_READ_CMD (6) -#define EE_ERASE_CMD (7) - -/* Serial EEPROM section. */ -#define EE_SHIFT_CLK 0x01 /* EEPROM shift clock. */ -#define EE_CS 0x02 /* EEPROM chip select. */ -#define EE_DATA_WRITE 0x04 /* EEPROM chip data in. */ -#define EE_DATA_READ 0x08 /* EEPROM chip data out. */ -#define EE_ENB (0x4800 | EE_CS) -#define EE_WRITE_0 0x4802 -#define EE_WRITE_1 0x4806 -#define EE_OFFSET 14 - -/* Delay between EEPROM clock transitions. */ -#define eeprom_delay(ee_addr) inw(ee_addr) - -/* Wait for the EEPROM to finish the previous operation. */ -static int eeprom_busy_poll(long ee_ioaddr) -{ - int i; - outw(EE_ENB, ee_ioaddr); - for (i = 0; i < 10000; i++) /* Typical 2000 ticks */ - if (inw(ee_ioaddr) & EE_DATA_READ) - break; - return i; -} - -/* This executes a generic EEPROM command, typically a write or write enable. - It returns the data output from the EEPROM, and thus may also be used for - reads. */ -static int do_eeprom_cmd(long ioaddr, int cmd, int cmd_len) -{ - unsigned retval = 0; - long ee_addr = ioaddr + EE_OFFSET; - - if (debug > 1) - printf(" EEPROM op 0x%x: ", cmd); - - outw(EE_ENB | EE_SHIFT_CLK, ee_addr); - - /* Shift the command bits out. */ - do { - short dataval = (cmd & (1 << cmd_len)) ? EE_WRITE_1 : EE_WRITE_0; - outw(dataval, ee_addr); - eeprom_delay(ee_addr); - if (debug > 2) - printf("%X", inw(ee_addr) & 15); - outw(dataval | EE_SHIFT_CLK, ee_addr); - eeprom_delay(ee_addr); - retval = (retval << 1) | ((inw(ee_addr) & EE_DATA_READ) ? 1 : 0); - } while (--cmd_len >= 0); -#if 0 - outw(EE_ENB, ee_addr); -#endif - /* Terminate the EEPROM access. */ - outw(EE_ENB & ~EE_CS, ee_addr); - if (debug > 1) - printf(" EEPROM result is 0x%5.5x.\n", retval); - return retval; -} - -static int read_eeprom(long ioaddr, int location, int addr_len) -{ - return do_eeprom_cmd(ioaddr, ((EE_READ_CMD << addr_len) | location) - << 16 , 3 + addr_len + 16) & 0xffff; -} - -static void write_eeprom(long ioaddr, int index, int value, int addr_len) -{ - long ee_ioaddr = ioaddr + EE_OFFSET; - int i; - - /* Poll for previous op finished. */ - eeprom_busy_poll(ee_ioaddr); /* Typical 0 ticks */ - /* Enable programming modes. */ - do_eeprom_cmd(ioaddr, (0x4f << (addr_len-4)), 3 + addr_len); - /* Do the actual write. */ - do_eeprom_cmd(ioaddr, - (((EE_WRITE_CMD< -#include - -int hello_world (int argc, char *argv[]) -{ - int i; - - /* Print the ABI version */ - app_startup(argv); - printf ("Example expects ABI version %d\n", XF_VERSION); - printf ("Actual U-Boot ABI version %d\n", (int)get_version()); - - printf ("Hello World\n"); - - printf ("argc = %d\n", argc); - - for (i=0; i<=argc; ++i) { - printf ("argv[%d] = \"%s\"\n", - i, - argv[i] ? argv[i] : ""); - } - - printf ("Hit any key to exit ... "); - while (!tstc()) - ; - /* consume input */ - (void) getc(); - - printf ("\n\n"); - return (0); -} diff --git a/examples/interrupt.c b/examples/interrupt.c deleted file mode 100644 index f3061d1..0000000 --- a/examples/interrupt.c +++ /dev/null @@ -1,81 +0,0 @@ -/* - * (C) Copyright 2006 - * Detlev Zundel, DENX Software Engineering, dzu@denx.de. - * - * See file CREDITS for list of people who contributed to this - * project. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - * - * This is a very simple standalone application demonstrating - * catching IRQs on the MPC52xx architecture. - * - * The interrupt to be intercepted can be specified as an argument - * to the application. Specifying nothing will intercept IRQ1 on the - * MPC5200 platform. On the CR825 carrier board from MicroSys this - * maps to the ABORT switch :) - * - * Note that the specified vector is only a logical number specified - * by the respective header file. - */ - -#include -#include -#include - -#if defined(CONFIG_MPC5xxx) -#define DFL_IRQ MPC5XXX_IRQ1 -#else -#define DFL_IRQ 0 -#endif - -static void irq_handler (void *arg); - -int interrupt (int argc, char *argv[]) -{ - int c, irq = -1; - - app_startup (argv); - - if (argc > 1) - irq = simple_strtoul (argv[1], NULL, 0); - if ((irq < 0) || (irq > NR_IRQS)) - irq = DFL_IRQ; - - printf ("Installing handler for irq vector %d and doing busy wait\n", - irq); - printf ("Press 'q' to quit\n"); - - /* Install interrupt handler */ - install_hdlr (irq, irq_handler, NULL); - while ((c = getc ()) != 'q') { - printf ("Ok, ok, I am still alive!\n"); - } - - free_hdlr (irq); - printf ("\nInterrupt handler has been uninstalled\n"); - - return (0); -} - -/* - * Handler for interrupt - */ -static void irq_handler (void *arg) -{ - /* just for demonstration */ - printf ("+"); -} diff --git a/examples/mem_to_mem_idma2intr.c b/examples/mem_to_mem_idma2intr.c deleted file mode 100644 index 15779d0..0000000 --- a/examples/mem_to_mem_idma2intr.c +++ /dev/null @@ -1,384 +0,0 @@ -/* The dpalloc function used and implemented in this file was derieved - * from PPCBoot/U-Boot file "cpu/mpc8260/commproc.c". - */ - -/* Author: Arun Dharankar - * This example is meant to only demonstrate how the IDMA could be used. - */ - -/* - * This file is based on "arch/ppc/8260_io/commproc.c" - here is it's - * copyright notice: - * - * General Purpose functions for the global management of the - * 8260 Communication Processor Module. - * Copyright (c) 1999 Dan Malek (dmalek@jlc.net) - * Copyright (c) 2000 MontaVista Software, Inc (source@mvista.com) - * 2.3.99 Updates - * - * In addition to the individual control of the communication - * channels, there are a few functions that globally affect the - * communication processor. - * - * Buffer descriptors must be allocated from the dual ported memory - * space. The allocator for that is here. When the communication - * process is reset, we reclaim the memory available. There is - * currently no deallocator for this memory. - */ - - -#include -#include - -DECLARE_GLOBAL_DATA_PTR; - -#define STANDALONE - -#ifndef STANDALONE /* Linked into/Part of PPCBoot */ -#include -#include -#else /* Standalone app of PPCBoot */ -#define WATCHDOG_RESET() { \ - *(ushort *)(CONFIG_SYS_IMMR + 0x1000E) = 0x556c; \ - *(ushort *)(CONFIG_SYS_IMMR + 0x1000E) = 0xaa39; \ - } -#endif /* STANDALONE */ - -static int debug = 1; - -#define DEBUG(fmt, args...) { \ - if(debug != 0) { \ - printf("[%s %d %s]: ",__FILE__,__LINE__,__FUNCTION__); \ - printf(fmt, ##args); \ - } \ -} - -#define CPM_CR_IDMA1_SBLOCK (0x14) -#define CPM_CR_IDMA2_SBLOCK (0x15) -#define CPM_CR_IDMA3_SBLOCK (0x16) -#define CPM_CR_IDMA4_SBLOCK (0x17) -#define CPM_CR_IDMA1_PAGE (0x07) -#define CPM_CR_IDMA2_PAGE (0x08) -#define CPM_CR_IDMA3_PAGE (0x09) -#define CPM_CR_IDMA4_PAGE (0x0a) -#define PROFF_IDMA1_BASE ((uint)0x87fe) -#define PROFF_IDMA2_BASE ((uint)0x88fe) -#define PROFF_IDMA3_BASE ((uint)0x89fe) -#define PROFF_IDMA4_BASE ((uint)0x8afe) - -#define CPM_CR_INIT_TRX ((ushort)0x0000) -#define CPM_CR_FLG ((ushort)0x0001) - -#define mk_cr_cmd(PG, SBC, MCN, OP) \ - ((PG << 26) | (SBC << 21) | (MCN << 6) | OP) - - -#pragma pack(1) -typedef struct ibdbits { - unsigned b_valid:1; - unsigned b_resv1:1; - unsigned b_wrap:1; - unsigned b_interrupt:1; - unsigned b_last:1; - unsigned b_resv2:1; - unsigned b_cm:1; - unsigned b_resv3:2; - unsigned b_sdn:1; - unsigned b_ddn:1; - unsigned b_dgbl:1; - unsigned b_dbo:2; - unsigned b_resv4:1; - unsigned b_ddtb:1; - unsigned b_resv5:2; - unsigned b_sgbl:1; - unsigned b_sbo:2; - unsigned b_resv6:1; - unsigned b_sdtb:1; - unsigned b_resv7:9; -} ibdbits_t; - -#pragma pack(1) -typedef union ibdbitsu { - ibdbits_t b; - uint i; -} ibdbitsu_t; - -#pragma pack(1) -typedef struct idma_buf_desc { - ibdbitsu_t ibd_bits; /* Status and Control */ - uint ibd_datlen; /* Data length in buffer */ - uint ibd_sbuf; /* Source buffer addr in host mem */ - uint ibd_dbuf; /* Destination buffer addr in host mem */ -} ibd_t; - - -#pragma pack(1) -typedef struct dcmbits { - unsigned b_fb:1; - unsigned b_lp:1; - unsigned b_resv1:3; - unsigned b_tc2:1; - unsigned b_resv2:1; - unsigned b_wrap:3; - unsigned b_sinc:1; - unsigned b_dinc:1; - unsigned b_erm:1; - unsigned b_dt:1; - unsigned b_sd:2; -} dcmbits_t; - -#pragma pack(1) -typedef union dcmbitsu { - dcmbits_t b; - ushort i; -} dcmbitsu_t; - -#pragma pack(1) -typedef struct pram_idma { - ushort pi_ibase; - dcmbitsu_t pi_dcmbits; - ushort pi_ibdptr; - ushort pi_dprbuf; - ushort pi_bufinv; /* internal to CPM */ - ushort pi_ssmax; - ushort pi_dprinptr; /* internal to CPM */ - ushort pi_sts; - ushort pi_dproutptr; /* internal to CPM */ - ushort pi_seob; - ushort pi_deob; - ushort pi_dts; - ushort pi_retadd; - ushort pi_resv1; /* internal to CPM */ - uint pi_bdcnt; - uint pi_sptr; - uint pi_dptr; - uint pi_istate; -} pram_idma_t; - - -volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR; -volatile ibd_t *bdf; -volatile pram_idma_t *piptr; - -volatile int dmadone; -volatile int *dmadonep = &dmadone; -void dmadone_handler (void *); - -int idma_init (void); -void idma_start (int, int, int, uint, uint, int); -uint dpalloc (uint, uint); - - -uint dpinit_done = 0; - - -#ifdef STANDALONE -int ctrlc (void) -{ - if (tstc()) { - switch (getc ()) { - case 0x03: /* ^C - Control C */ - return 1; - default: - break; - } - } - return 0; -} -void * memset(void * s,int c,size_t count) -{ - char *xs = (char *) s; - while (count--) - *xs++ = c; - return s; -} -int memcmp(const void * cs,const void * ct,size_t count) -{ - const unsigned char *su1, *su2; - int res = 0; - for( su1 = cs, su2 = ct; 0 < count; ++su1, ++su2, count--) - if ((res = *su1 - *su2) != 0) - break; - return res; -} -#endif /* STANDALONE */ - -#ifdef STANDALONE -int mem_to_mem_idma2intr (int argc, char *argv[]) -#else -int do_idma (bd_t * bd, int argc, char *argv[]) -#endif /* STANDALONE */ -{ - int i; - - app_startup(argv); - dpinit_done = 0; - - idma_init (); - - DEBUG ("Installing dma handler\n"); - install_hdlr (7, dmadone_handler, (void *) bdf); - - memset ((void *) 0x100000, 'a', 512); - memset ((void *) 0x200000, 'b', 512); - - for (i = 0; i < 32; i++) { - printf ("Startin IDMA, iteration=%d\n", i); - idma_start (1, 1, 512, 0x100000, 0x200000, 3); - } - - DEBUG ("Uninstalling dma handler\n"); - free_hdlr (7); - - return 0; -} - -void -idma_start (int sinc, int dinc, int sz, uint sbuf, uint dbuf, int ttype) -{ - /* ttype is for M-M, M-P, P-M or P-P: not used for now */ - - piptr->pi_istate = 0; /* manual says: clear it before every START_IDMA */ - piptr->pi_dcmbits.b.b_resv1 = 0; - - if (sinc == 1) - piptr->pi_dcmbits.b.b_sinc = 1; - else - piptr->pi_dcmbits.b.b_sinc = 0; - - if (dinc == 1) - piptr->pi_dcmbits.b.b_dinc = 1; - else - piptr->pi_dcmbits.b.b_dinc = 0; - - piptr->pi_dcmbits.b.b_erm = 0; - piptr->pi_dcmbits.b.b_sd = 0x00; /* M-M */ - - bdf->ibd_sbuf = sbuf; - bdf->ibd_dbuf = dbuf; - bdf->ibd_bits.b.b_cm = 0; - bdf->ibd_bits.b.b_interrupt = 1; - bdf->ibd_bits.b.b_wrap = 1; - bdf->ibd_bits.b.b_last = 1; - bdf->ibd_bits.b.b_sdn = 0; - bdf->ibd_bits.b.b_ddn = 0; - bdf->ibd_bits.b.b_dgbl = 0; - bdf->ibd_bits.b.b_ddtb = 0; - bdf->ibd_bits.b.b_sgbl = 0; - bdf->ibd_bits.b.b_sdtb = 0; - bdf->ibd_bits.b.b_dbo = 1; - bdf->ibd_bits.b.b_sbo = 1; - bdf->ibd_bits.b.b_valid = 1; - bdf->ibd_datlen = 512; - - *dmadonep = 0; - - immap->im_sdma.sdma_idmr2 = (uchar) 0xf; - - immap->im_cpm.cp_cpcr = mk_cr_cmd (CPM_CR_IDMA2_PAGE, - CPM_CR_IDMA2_SBLOCK, 0x0, - 0x9) | 0x00010000; - - while (*dmadonep != 1) { - if (ctrlc ()) { - DEBUG ("\nInterrupted waiting for DMA interrupt.\n"); - goto done; - } - printf ("Waiting for DMA interrupt (dmadone=%d b_valid = %d)...\n", - dmadone, bdf->ibd_bits.b.b_valid); - udelay (1000000); - } - printf ("DMA complete notification received!\n"); - - done: - DEBUG ("memcmp(0x%08x, 0x%08x, 512) = %d\n", - sbuf, dbuf, memcmp ((void *) sbuf, (void *) dbuf, 512)); - - return; -} - -#define MAX_INT_BUFSZ 64 -#define DCM_WRAP 0 /* MUST be consistant with MAX_INT_BUFSZ */ - -int idma_init (void) -{ - uint memaddr; - - immap->im_cpm.cp_rccr &= ~0x00F3FFFF; - immap->im_cpm.cp_rccr |= 0x00A00A00; - - memaddr = dpalloc (sizeof (pram_idma_t), 64); - - *(volatile ushort *) &immap->im_dprambase[PROFF_IDMA2_BASE] = memaddr; - piptr = (volatile pram_idma_t *) ((uint) (immap) + memaddr); - - piptr->pi_resv1 = 0; /* manual says: clear it */ - piptr->pi_dcmbits.b.b_fb = 0; - piptr->pi_dcmbits.b.b_lp = 1; - piptr->pi_dcmbits.b.b_erm = 0; - piptr->pi_dcmbits.b.b_dt = 0; - - memaddr = (uint) dpalloc (sizeof (ibd_t), 64); - piptr->pi_ibase = piptr->pi_ibdptr = (volatile short) memaddr; - bdf = (volatile ibd_t *) ((uint) (immap) + memaddr); - bdf->ibd_bits.b.b_valid = 0; - - memaddr = (uint) dpalloc (64, 64); - piptr->pi_dprbuf = (volatile ushort) memaddr; - piptr->pi_dcmbits.b.b_wrap = 4; - piptr->pi_ssmax = 32; - - piptr->pi_sts = piptr->pi_ssmax; - piptr->pi_dts = piptr->pi_ssmax; - - return 1; -} - -void dmadone_handler (void *arg) -{ - immap->im_sdma.sdma_idmr2 = (uchar) 0x0; - - *dmadonep = 1; - - return; -} - - -static uint dpbase = 0; - -uint dpalloc (uint size, uint align) -{ - volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR; - uint retloc; - uint align_mask, off; - uint savebase; - - /* Pointer to initial global data area */ - - if (dpinit_done == 0) { - dpbase = gd->dp_alloc_base; - dpinit_done = 1; - } - - align_mask = align - 1; - savebase = dpbase; - - if ((off = (dpbase & align_mask)) != 0) - dpbase += (align - off); - - if ((off = size & align_mask) != 0) - size += align - off; - - if ((dpbase + size) >= gd->dp_alloc_top) { - dpbase = savebase; - printf ("dpalloc: ran out of dual port ram!"); - return 0; - } - - retloc = dpbase; - dpbase += size; - - memset ((void *) &immr->im_dprambase[retloc], 0, size); - - return (retloc); -} diff --git a/examples/mips.lds b/examples/mips.lds deleted file mode 100644 index 717b201..0000000 --- a/examples/mips.lds +++ /dev/null @@ -1,59 +0,0 @@ -/* - * (C) Copyright 2003 - * Wolfgang Denk Engineering, - * - * See file CREDITS for list of people who contributed to this - * project. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - */ - -/* -OUTPUT_FORMAT("elf32-bigmips", "elf32-bigmips", "elf32-bigmips") -*/ -OUTPUT_FORMAT("elf32-tradbigmips", "elf32-tradbigmips", "elf32-tradbigmips") -OUTPUT_ARCH(mips) -SECTIONS -{ - .text : - { - *(.text) - } - - . = ALIGN(4); - .rodata : { *(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*))) } - - . = ALIGN(4); - .data : { *(.data) } - - . = .; - _gp = ALIGN(16) + 0x7ff0; - - .got : { - __got_start = .; - *(.got) - __got_end = .; - } - - .sdata : { *(.sdata) } - - . = ALIGN(4); - __bss_start = .; - .sbss (NOLOAD) : { *(.sbss) } - .bss (NOLOAD) : { *(.bss) . = ALIGN(4); } - - _end = .; -} diff --git a/examples/nios.lds b/examples/nios.lds deleted file mode 100644 index 4c1080b..0000000 --- a/examples/nios.lds +++ /dev/null @@ -1,61 +0,0 @@ -/* - * (C) Copyright 2003, Psyent Corporation - * Scott McNutt - * - * See file CREDITS for list of people who contributed to this - * project. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - */ - - -OUTPUT_FORMAT("elf32-nios") -OUTPUT_ARCH(nios) -ENTRY(_start) - -SECTIONS -{ - .text : - { - *(.text) - } - __text_end = .; - - . = ALIGN(4); - .rodata : - { - *(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*))) - } - __rodata_end = .; - - . = ALIGN(4); - .data : - { - *(.data) - } - . = ALIGN(4); - __data_end = .; - - __bss_start = .; - . = ALIGN(4); - .bss (NOLOAD) : - { - *(.bss) - } - . = ALIGN(4); - __bss_end = .; - _end = .; -} diff --git a/examples/nios2.lds b/examples/nios2.lds deleted file mode 100644 index a3e5ea8..0000000 --- a/examples/nios2.lds +++ /dev/null @@ -1,133 +0,0 @@ -/* - * (C) Copyright 2004, Psyent Corporation - * Scott McNutt - * - * See file CREDITS for list of people who contributed to this - * project. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - */ - - -OUTPUT_FORMAT("elf32-littlenios2") -OUTPUT_ARCH(nios2) -ENTRY(_start) - -SECTIONS -{ - .text : - { - *(.text) - *(.text.*) - *(.gnu.linkonce.t*) - *(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*))) - *(.gnu.linkonce.r*) - } - . = ALIGN (4); - _etext = .; - PROVIDE (etext = .); - - /* INIT DATA sections - "Small" data (see the gcc -G option) - * is always gp-relative. Here we make all init data sections - * adjacent to simplify the startup code -- and provide - * the global pointer for gp-relative access. - */ - _data = .; - .data : - { - *(.data) - *(.data.*) - *(.gnu.linkonce.d*) - } - - . = ALIGN(16); - _gp = .; /* Global pointer addr */ - PROVIDE (gp = .); - - .sdata : - { - *(.sdata) - *(.sdata.*) - *(.gnu.linkonce.s.*) - } - . = ALIGN(4); - - _edata = .; - PROVIDE (edata = .); - - /* UNINIT DATA - Small uninitialized data is first so it's - * adjacent to sdata and can be referenced via gp. The normal - * bss follows. We keep it adjacent to simplify init code. - */ - __bss_start = .; - .sbss (NOLOAD) : - { - *(.sbss) - *(.sbss.*) - *(.gnu.linkonce.sb.*) - *(.scommon) - } - . = ALIGN(4); - .bss (NOLOAD) : - { - *(.bss) - *(.bss.*) - *(.dynbss) - *(COMMON) - *(.scommon) - } - . = ALIGN(4); - _end = .; - PROVIDE (end = .); - - /* CMD TABLE - uboot command sections - */ - . = .; - __uboot_cmd_start = .; - .u_boot_cmd : - { - *(.u_boot_cmd) - } - . = ALIGN(4); - __u_boot_cmd_end = .; - - /* DEBUG -- symbol table, string table, etc. etc. - */ - .stab 0 : { *(.stab) } - .stabstr 0 : { *(.stabstr) } - .stab.excl 0 : { *(.stab.excl) } - .stab.exclstr 0 : { *(.stab.exclstr) } - .stab.index 0 : { *(.stab.index) } - .stab.indexstr 0 : { *(.stab.indexstr) } - .comment 0 : { *(.comment) } - .debug 0 : { *(.debug) } - .line 0 : { *(.line) } - .debug_srcinfo 0 : { *(.debug_srcinfo) } - .debug_sfnames 0 : { *(.debug_sfnames) } - .debug_aranges 0 : { *(.debug_aranges) } - .debug_pubnames 0 : { *(.debug_pubnames) } - .debug_info 0 : { *(.debug_info) } - .debug_abbrev 0 : { *(.debug_abbrev) } - .debug_line 0 : { *(.debug_line) } - .debug_frame 0 : { *(.debug_frame) } - .debug_str 0 : { *(.debug_str) } - .debug_loc 0 : { *(.debug_loc) } - .debug_macinfo 0 : { *(.debug_macinfo) } - .debug_weaknames 0 : { *(.debug_weaknames) } - .debug_funcnames 0 : { *(.debug_funcnames) } - .debug_typenames 0 : { *(.debug_typenames) } - .debug_varnames 0 : { *(.debug_varnames) } -} diff --git a/examples/ppc_longjmp.S b/examples/ppc_longjmp.S deleted file mode 100644 index 5ca6f6f..0000000 --- a/examples/ppc_longjmp.S +++ /dev/null @@ -1,79 +0,0 @@ -/* longjmp for PowerPC. - Copyright (C) 1995, 1996, 1997, 1999, 2000 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include - -# define JB_GPR1 0 /* Also known as the stack pointer */ -# define JB_GPR2 1 -# define JB_LR 2 /* The address we will return to */ -# define JB_GPRS 3 /* GPRs 14 through 31 are saved, 18 in total */ -# define JB_CR 21 /* Condition code registers. */ -# define JB_FPRS 22 /* FPRs 14 through 31 are saved, 18*2 words total */ -# define JB_SIZE (58*4) - -#define FP(x...) x -#define FP(x...) x - -.globl ppc_longjmp; - -ppc_longjmp: - lwz r1,(JB_GPR1*4)(r3) - lwz r2,(JB_GPR2*4)(r3) - lwz r0,(JB_LR*4)(r3) - lwz r14,((JB_GPRS+0)*4)(r3) -FP( lfd 14,((JB_FPRS+0*2)*4)(r3)) - lwz r15,((JB_GPRS+1)*4)(r3) -FP( lfd 15,((JB_FPRS+1*2)*4)(r3)) - lwz r16,((JB_GPRS+2)*4)(r3) -FP( lfd 16,((JB_FPRS+2*2)*4)(r3)) - lwz r17,((JB_GPRS+3)*4)(r3) -FP( lfd 17,((JB_FPRS+3*2)*4)(r3)) - lwz r18,((JB_GPRS+4)*4)(r3) -FP( lfd 18,((JB_FPRS+4*2)*4)(r3)) - lwz r19,((JB_GPRS+5)*4)(r3) -FP( lfd 19,((JB_FPRS+5*2)*4)(r3)) - lwz r20,((JB_GPRS+6)*4)(r3) -FP( lfd 20,((JB_FPRS+6*2)*4)(r3)) - mtlr r0 - lwz r21,((JB_GPRS+7)*4)(r3) -FP( lfd 21,((JB_FPRS+7*2)*4)(r3)) - lwz r22,((JB_GPRS+8)*4)(r3) -FP( lfd 22,((JB_FPRS+8*2)*4)(r3)) - lwz r0,(JB_CR*4)(r3) - lwz r23,((JB_GPRS+9)*4)(r3) -FP( lfd 23,((JB_FPRS+9*2)*4)(r3)) - lwz r24,((JB_GPRS+10)*4)(r3) -FP( lfd 24,((JB_FPRS+10*2)*4)(r3)) - lwz r25,((JB_GPRS+11)*4)(r3) -FP( lfd 25,((JB_FPRS+11*2)*4)(r3)) - mtcrf 0xFF,r0 - lwz r26,((JB_GPRS+12)*4)(r3) -FP( lfd 26,((JB_FPRS+12*2)*4)(r3)) - lwz r27,((JB_GPRS+13)*4)(r3) -FP( lfd 27,((JB_FPRS+13*2)*4)(r3)) - lwz r28,((JB_GPRS+14)*4)(r3) -FP( lfd 28,((JB_FPRS+14*2)*4)(r3)) - lwz r29,((JB_GPRS+15)*4)(r3) -FP( lfd 29,((JB_FPRS+15*2)*4)(r3)) - lwz r30,((JB_GPRS+16)*4)(r3) -FP( lfd 30,((JB_FPRS+16*2)*4)(r3)) - lwz r31,((JB_GPRS+17)*4)(r3) -FP( lfd 31,((JB_FPRS+17*2)*4)(r3)) - mr r3,r4 - blr diff --git a/examples/ppc_setjmp.S b/examples/ppc_setjmp.S deleted file mode 100644 index 421abfd..0000000 --- a/examples/ppc_setjmp.S +++ /dev/null @@ -1,83 +0,0 @@ -/* setjmp for PowerPC. - Copyright (C) 1995, 1996, 1997, 1999, 2000 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include - -# define JB_GPR1 0 /* Also known as the stack pointer */ -# define JB_GPR2 1 -# define JB_LR 2 /* The address we will return to */ -# define JB_GPRS 3 /* GPRs 14 through 31 are saved, 18 in total */ -# define JB_CR 21 /* Condition code registers. */ -# define JB_FPRS 22 /* FPRs 14 through 31 are saved, 18*2 words total */ -# define JB_SIZE (58*4) - -#define FP(x...) x - -.globl setctxsp; -setctxsp: - mr r1, r3 - blr - -.globl ppc_setjmp; -ppc_setjmp: - stw r1,(JB_GPR1*4)(3) - mflr r0 - stw r2,(JB_GPR2*4)(3) - stw r14,((JB_GPRS+0)*4)(3) -FP( stfd 14,((JB_FPRS+0*2)*4)(3)) - stw r0,(JB_LR*4)(3) - stw r15,((JB_GPRS+1)*4)(3) -FP( stfd 15,((JB_FPRS+1*2)*4)(3)) - mfcr r0 - stw r16,((JB_GPRS+2)*4)(3) -FP( stfd 16,((JB_FPRS+2*2)*4)(3)) - stw r0,(JB_CR*4)(3) - stw r17,((JB_GPRS+3)*4)(3) -FP( stfd 17,((JB_FPRS+3*2)*4)(3)) - stw r18,((JB_GPRS+4)*4)(3) -FP( stfd 18,((JB_FPRS+4*2)*4)(3)) - stw r19,((JB_GPRS+5)*4)(3) -FP( stfd 19,((JB_FPRS+5*2)*4)(3)) - stw r20,((JB_GPRS+6)*4)(3) -FP( stfd 20,((JB_FPRS+6*2)*4)(3)) - stw r21,((JB_GPRS+7)*4)(3) -FP( stfd 21,((JB_FPRS+7*2)*4)(3)) - stw r22,((JB_GPRS+8)*4)(3) -FP( stfd 22,((JB_FPRS+8*2)*4)(3)) - stw r23,((JB_GPRS+9)*4)(3) -FP( stfd 23,((JB_FPRS+9*2)*4)(3)) - stw r24,((JB_GPRS+10)*4)(3) -FP( stfd 24,((JB_FPRS+10*2)*4)(3)) - stw r25,((JB_GPRS+11)*4)(3) -FP( stfd 25,((JB_FPRS+11*2)*4)(3)) - stw r26,((JB_GPRS+12)*4)(3) -FP( stfd 26,((JB_FPRS+12*2)*4)(3)) - stw r27,((JB_GPRS+13)*4)(3) -FP( stfd 27,((JB_FPRS+13*2)*4)(3)) - stw r28,((JB_GPRS+14)*4)(3) -FP( stfd 28,((JB_FPRS+14*2)*4)(3)) - stw r29,((JB_GPRS+15)*4)(3) -FP( stfd 29,((JB_FPRS+15*2)*4)(3)) - stw r30,((JB_GPRS+16)*4)(3) -FP( stfd 30,((JB_FPRS+16*2)*4)(3)) - stw r31,((JB_GPRS+17)*4)(3) -FP( stfd 31,((JB_FPRS+17*2)*4)(3)) - - li 3, 0 - blr diff --git a/examples/sched.c b/examples/sched.c deleted file mode 100644 index b32766f..0000000 --- a/examples/sched.c +++ /dev/null @@ -1,369 +0,0 @@ -/* - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - */ - -#include -#include - -/* - * Author: Arun Dharankar - * - * A very simple thread/schedular model: - * - only one master thread, and no parent child relation maintained - * - parent thread cannot be stopped or deleted - * - no permissions or credentials - * - no elaborate safety checks - * - cooperative multi threading - * - Simple round-robin scheduleing with no priorities - * - no metering/statistics collection - * - * Basic idea of implementing this is to allow more than one tests to - * execute "simultaneously". - * - * This may be modified such thread_yield may be called in syscalls, and - * timer interrupts. - */ - - -#define MAX_THREADS 8 - -#define CTX_SIZE 512 -#define STK_SIZE 8*1024 - -#define STATE_EMPTY 0 -#define STATE_RUNNABLE 1 -#define STATE_STOPPED 2 -#define STATE_TERMINATED 2 - -#define MASTER_THREAD 0 - -#define RC_FAILURE (-1) -#define RC_SUCCESS (0) - -typedef vu_char *jmp_ctx; -unsigned long setctxsp (vu_char *sp); -int ppc_setjmp(jmp_ctx env); -void ppc_longjmp(jmp_ctx env, int val); -#define setjmp ppc_setjmp -#define longjmp ppc_longjmp - -struct lthread { - int state; - int retval; - char stack[STK_SIZE]; - uchar context[CTX_SIZE]; - int (*func) (void *); - void *arg; -}; -static volatile struct lthread lthreads[MAX_THREADS]; -static volatile int current_tid = MASTER_THREAD; - - -static uchar dbg = 0; - -#define PDEBUG(fmt, args...) { \ - if(dbg != 0) { \ - printf("[%s %d %s]: ",__FILE__,__LINE__,__FUNCTION__);\ - printf(fmt, ##args); \ - printf("\n"); \ - } \ -} - -static int testthread (void *); -static void sched_init (void); -static int thread_create (int (*func) (void *), void *arg); -static int thread_start (int id); -static void thread_yield (void); -static int thread_delete (int id); -static int thread_join (int *ret); - -#if 0 /* not used yet */ -static int thread_stop (int id); -#endif /* not used yet */ - -/* An example of schedular test */ - -#define NUMTHREADS 7 -int sched (int ac, char *av[]) -{ - int i, j; - int tid[NUMTHREADS]; - int names[NUMTHREADS]; - - app_startup(av); - - sched_init (); - - for (i = 0; i < NUMTHREADS; i++) { - names[i] = i; - j = thread_create (testthread, (void *) &names[i]); - if (j == RC_FAILURE) - printf ("schedtest: Failed to create thread %d\n", i); - if (j > 0) { - printf ("schedtest: Created thread with id %d, name %d\n", - j, i); - tid[i] = j; - } - } - printf ("schedtest: Threads created\n"); - - printf ("sched_test: function=0x%08x\n", (unsigned)testthread); - for (i = 0; i < NUMTHREADS; i++) { - printf ("schedtest: Setting thread %d runnable\n", tid[i]); - thread_start (tid[i]); - thread_yield (); - } - printf ("schedtest: Started %d threads\n", NUMTHREADS); - - while (1) { - printf ("schedtest: Waiting for threads to complete\n"); - if (tstc () && getc () == 0x3) { - printf ("schedtest: Aborting threads...\n"); - for (i = 0; i < NUMTHREADS; i++) { - printf ("schedtest: Deleting thread %d\n", tid[i]); - thread_delete (tid[i]); - } - return RC_SUCCESS; - } - j = -1; - i = thread_join (&j); - if (i == RC_FAILURE) { - printf ("schedtest: No threads pending, " - "exiting schedular test\n"); - return RC_SUCCESS; - } - printf ("schedtest: thread is %d returned %d\n", i, j); - thread_yield (); - } - - return RC_SUCCESS; -} - -static int testthread (void *name) -{ - int i; - - printf ("testthread: Begin executing thread, myname %d, &i=0x%08x\n", - *(int *) name, (unsigned)&i); - - printf ("Thread %02d, i=%d\n", *(int *) name, i); - - for (i = 0; i < 0xffff * (*(int *) name + 1); i++) { - if (tstc () && getc () == 0x3) { - printf ("testthread: myname %d terminating.\n", - *(int *) name); - return *(int *) name + 1; - } - - if (i % 100 == 0) - thread_yield (); - } - - printf ("testthread: returning %d, i=0x%x\n", - *(int *) name + 1, i); - - return *(int *) name + 1; -} - - -static void sched_init (void) -{ - int i; - - for (i = MASTER_THREAD + 1; i < MAX_THREADS; i++) - lthreads[i].state = STATE_EMPTY; - - current_tid = MASTER_THREAD; - lthreads[current_tid].state = STATE_RUNNABLE; - PDEBUG ("sched_init: master context = 0x%08x", - (unsigned)lthreads[current_tid].context); - return; -} - -static void thread_yield (void) -{ - static int i; - - PDEBUG ("thread_yield: current tid=%d", current_tid); - -#define SWITCH(new) \ - if(lthreads[new].state == STATE_RUNNABLE) { \ - PDEBUG("thread_yield: %d match, ctx=0x%08x", \ - new, \ - (unsigned)lthreads[current_tid].context); \ - if(setjmp(lthreads[current_tid].context) == 0) { \ - current_tid = new; \ - PDEBUG("thread_yield: tid %d returns 0", \ - new); \ - longjmp(lthreads[new].context, 1); \ - } else { \ - PDEBUG("thread_yield: tid %d returns 1", \ - new); \ - return; \ - } \ - } - - for (i = current_tid + 1; i < MAX_THREADS; i++) { - SWITCH (i); - } - - if (current_tid != 0) { - for (i = 0; i <= current_tid; i++) { - SWITCH (i); - } - } - - PDEBUG ("thread_yield: returning from thread_yield"); - return; -} - -static int thread_create (int (*func) (void *), void *arg) -{ - int i; - - for (i = MASTER_THREAD + 1; i < MAX_THREADS; i++) { - if (lthreads[i].state == STATE_EMPTY) { - lthreads[i].state = STATE_STOPPED; - lthreads[i].func = func; - lthreads[i].arg = arg; - PDEBUG ("thread_create: returns new tid %d", i); - return i; - } - } - - PDEBUG ("thread_create: returns failure"); - return RC_FAILURE; -} - -static int thread_delete (int id) -{ - if (id <= MASTER_THREAD || id > MAX_THREADS) - return RC_FAILURE; - - if (current_tid == id) - return RC_FAILURE; - - lthreads[id].state = STATE_EMPTY; - return RC_SUCCESS; -} - -static void thread_launcher (void) -{ - PDEBUG ("thread_launcher: invoking func=0x%08x", - (unsigned)lthreads[current_tid].func); - - lthreads[current_tid].retval = - lthreads[current_tid].func (lthreads[current_tid].arg); - - PDEBUG ("thread_launcher: tid %d terminated", current_tid); - - lthreads[current_tid].state = STATE_TERMINATED; - thread_yield (); - printf ("thread_launcher: should NEVER get here!\n"); - - return; -} - -static int thread_start (int id) -{ - PDEBUG ("thread_start: id=%d", id); - if (id <= MASTER_THREAD || id > MAX_THREADS) { - return RC_FAILURE; - } - - if (lthreads[id].state != STATE_STOPPED) - return RC_FAILURE; - - if (setjmp (lthreads[current_tid].context) == 0) { - lthreads[id].state = STATE_RUNNABLE; - current_tid = id; - PDEBUG ("thread_start: to be stack=0%08x", - (unsigned)lthreads[id].stack); - setctxsp ((vu_char *)<hreads[id].stack[STK_SIZE]); - thread_launcher (); - } - - PDEBUG ("thread_start: Thread id=%d started, parent returns", id); - - return RC_SUCCESS; -} - -#if 0 /* not used so far */ -static int thread_stop (int id) -{ - if (id <= MASTER_THREAD || id >= MAX_THREADS) - return RC_FAILURE; - - if (current_tid == id) - return RC_FAILURE; - - lthreads[id].state = STATE_STOPPED; - return RC_SUCCESS; -} -#endif /* not used so far */ - -static int thread_join (int *ret) -{ - int i, j = 0; - - PDEBUG ("thread_join: *ret = %d", *ret); - - if (!(*ret == -1 || *ret > MASTER_THREAD || *ret < MAX_THREADS)) { - PDEBUG ("thread_join: invalid tid %d", *ret); - return RC_FAILURE; - } - - if (*ret == -1) { - PDEBUG ("Checking for tid = -1"); - while (1) { - /* PDEBUG("thread_join: start while-loopn"); */ - j = 0; - for (i = MASTER_THREAD + 1; i < MAX_THREADS; i++) { - if (lthreads[i].state == STATE_TERMINATED) { - *ret = lthreads[i].retval; - lthreads[i].state = STATE_EMPTY; - /* PDEBUG("thread_join: returning retval %d of tid %d", - ret, i); */ - return RC_SUCCESS; - } - - if (lthreads[i].state != STATE_EMPTY) { - PDEBUG ("thread_join: %d used slots tid %d state=%d", - j, i, lthreads[i].state); - j++; - } - } - if (j == 0) { - PDEBUG ("thread_join: all slots empty!"); - return RC_FAILURE; - } - /* PDEBUG("thread_join: yielding"); */ - thread_yield (); - /* PDEBUG("thread_join: back from yield"); */ - } - } - - if (lthreads[*ret].state == STATE_TERMINATED) { - i = *ret; - *ret = lthreads[*ret].retval; - lthreads[*ret].state = STATE_EMPTY; - PDEBUG ("thread_join: returing %d for tid %d", *ret, i); - return RC_SUCCESS; - } - - PDEBUG ("thread_join: thread %d is not terminated!", *ret); - return RC_FAILURE; -} diff --git a/examples/smc91111_eeprom.c b/examples/smc91111_eeprom.c deleted file mode 100644 index 39e5306..0000000 --- a/examples/smc91111_eeprom.c +++ /dev/null @@ -1,395 +0,0 @@ -/* - * (C) Copyright 2004 - * Robin Getz rgetz@blacfin.uclinux.org - * - * See file CREDITS for list of people who contributed to this - * project. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - * - * Heavily borrowed from the following peoples GPL'ed software: - * - Wolfgang Denk, DENX Software Engineering, wd@denx.de - * Das U-boot - * - Ladislav Michl ladis@linux-mips.org - * A rejected patch on the U-Boot mailing list - */ - -#include -#include -#include "../drivers/net/smc91111.h" - -#ifdef CONFIG_DRIVER_SMC91111 - -#ifndef SMC91111_EEPROM_INIT -# define SMC91111_EEPROM_INIT() -#endif - -#define SMC_BASE_ADDRESS CONFIG_SMC91111_BASE -#define EEPROM 0x1 -#define MAC 0x2 -#define UNKNOWN 0x4 - -void dump_reg (void); -void dump_eeprom (void); -int write_eeprom_reg (int, int); -void copy_from_eeprom (void); -void print_MAC (void); -int read_eeprom_reg (int); -void print_macaddr (void); - -int smc91111_eeprom (int argc, char *argv[]) -{ - int c, i, j, done, line, reg, value, start, what; - char input[50]; - - /* Print the ABI version */ - app_startup (argv); - if (XF_VERSION != (int) get_version ()) { - printf ("Expects ABI version %d\n", XF_VERSION); - printf ("Actual U-Boot ABI version %d\n", - (int) get_version ()); - printf ("Can't run\n\n"); - return (0); - } - - SMC91111_EEPROM_INIT(); - - if ((SMC_inw (BANK_SELECT) & 0xFF00) != 0x3300) { - printf ("Can't find SMSC91111\n"); - return (0); - } - - done = 0; - what = UNKNOWN; - printf ("\n"); - while (!done) { - /* print the prompt */ - printf ("SMC91111> "); - line = 0; - i = 0; - start = 1; - while (!line) { - /* Wait for a keystroke */ - while (!tstc ()); - - c = getc (); - /* Make Uppercase */ - if (c >= 'Z') - c -= ('a' - 'A'); - /* printf(" |%02x| ",c); */ - - switch (c) { - case '\r': /* Enter */ - case '\n': - input[i] = 0; - puts ("\r\n"); - line = 1; - break; - case '\0': /* nul */ - continue; - - case 0x03: /* ^C - break */ - input[0] = 0; - i = 0; - line = 1; - done = 1; - break; - - case 0x5F: - case 0x08: /* ^H - backspace */ - case 0x7F: /* DEL - backspace */ - if (i > 0) { - puts ("\b \b"); - i--; - } - break; - default: - if (start) { - if ((c == 'W') || (c == 'D') - || (c == 'M') || (c == 'C') - || (c == 'P')) { - putc (c); - input[i] = c; - if (i <= 45) - i++; - start = 0; - } - } else { - if ((c >= '0' && c <= '9') - || (c >= 'A' && c <= 'F') - || (c == 'E') || (c == 'M') - || (c == ' ')) { - putc (c); - input[i] = c; - if (i <= 45) - i++; - break; - } - } - break; - } - } - - for (; i < 49; i++) - input[i] = 0; - - switch (input[0]) { - case ('W'): - /* Line should be w reg value */ - i = 0; - reg = 0; - value = 0; - /* Skip to the next space or end) */ - while ((input[i] != ' ') && (input[i] != 0)) - i++; - - if (input[i] != 0) - i++; - - /* Are we writing to EEPROM or MAC */ - switch (input[i]) { - case ('E'): - what = EEPROM; - break; - case ('M'): - what = MAC; - break; - default: - what = UNKNOWN; - break; - } - - /* skip to the next space or end */ - while ((input[i] != ' ') && (input[i] != 0)) - i++; - if (input[i] != 0) - i++; - - /* Find register to write into */ - j = 0; - while ((input[i] != ' ') && (input[i] != 0)) { - j = input[i] - 0x30; - if (j >= 0xA) { - j -= 0x07; - } - reg = (reg * 0x10) + j; - i++; - } - - while ((input[i] != ' ') && (input[i] != 0)) - i++; - - if (input[i] != 0) - i++; - else - what = UNKNOWN; - - /* Get the value to write */ - j = 0; - while ((input[i] != ' ') && (input[i] != 0)) { - j = input[i] - 0x30; - if (j >= 0xA) { - j -= 0x07; - } - value = (value * 0x10) + j; - i++; - } - - switch (what) { - case 1: - printf ("Writing EEPROM register %02x with %04x\n", reg, value); - write_eeprom_reg (value, reg); - break; - case 2: - printf ("Writing MAC register bank %i, reg %02x with %04x\n", reg >> 4, reg & 0xE, value); - SMC_SELECT_BANK (reg >> 4); - SMC_outw (value, reg & 0xE); - break; - default: - printf ("Wrong\n"); - break; - } - break; - case ('D'): - dump_eeprom (); - break; - case ('M'): - dump_reg (); - break; - case ('C'): - copy_from_eeprom (); - break; - case ('P'): - print_macaddr (); - break; - default: - break; - } - - } - - return (0); -} - -void copy_from_eeprom (void) -{ - int i; - - SMC_SELECT_BANK (1); - SMC_outw ((SMC_inw (CTL_REG) & !CTL_EEPROM_SELECT) | CTL_RELOAD, - CTL_REG); - i = 100; - while ((SMC_inw (CTL_REG) & CTL_RELOAD) && --i) - udelay (100); - if (i == 0) { - printf ("Timeout Refreshing EEPROM registers\n"); - } else { - printf ("EEPROM contents copied to MAC\n"); - } - -} - -void print_macaddr (void) -{ - int i, j, k, mac[6]; - - printf ("Current MAC Address in SMSC91111 "); - SMC_SELECT_BANK (1); - for (i = 0; i < 5; i++) { - printf ("%02x:", SMC_inb (ADDR0_REG + i)); - } - - printf ("%02x\n", SMC_inb (ADDR0_REG + 5)); - - i = 0; - for (j = 0x20; j < 0x23; j++) { - k = read_eeprom_reg (j); - mac[i] = k & 0xFF; - i++; - mac[i] = k >> 8; - i++; - } - - printf ("Current MAC Address in EEPROM "); - for (i = 0; i < 5; i++) - printf ("%02x:", mac[i]); - printf ("%02x\n", mac[5]); - -} -void dump_eeprom (void) -{ - int j, k; - - printf ("IOS2-0 "); - for (j = 0; j < 8; j++) { - printf ("%03x ", j); - } - printf ("\n"); - - for (k = 0; k < 4; k++) { - if (k == 0) - printf ("CONFIG "); - if (k == 1) - printf ("BASE "); - if ((k == 2) || (k == 3)) - printf (" "); - for (j = 0; j < 0x20; j += 4) { - printf ("%02x:%04x ", j + k, read_eeprom_reg (j + k)); - } - printf ("\n"); - } - - for (j = 0x20; j < 0x40; j++) { - if ((j & 0x07) == 0) - printf ("\n"); - printf ("%02x:%04x ", j, read_eeprom_reg (j)); - } - printf ("\n"); - -} - -int read_eeprom_reg (int reg) -{ - int timeout; - - SMC_SELECT_BANK (2); - SMC_outw (reg, PTR_REG); - - SMC_SELECT_BANK (1); - SMC_outw (SMC_inw (CTL_REG) | CTL_EEPROM_SELECT | CTL_RELOAD, - CTL_REG); - timeout = 100; - while ((SMC_inw (CTL_REG) & CTL_RELOAD) && --timeout) - udelay (100); - if (timeout == 0) { - printf ("Timeout Reading EEPROM register %02x\n", reg); - return 0; - } - - return SMC_inw (GP_REG); - -} - -int write_eeprom_reg (int value, int reg) -{ - int timeout; - - SMC_SELECT_BANK (2); - SMC_outw (reg, PTR_REG); - - SMC_SELECT_BANK (1); - SMC_outw (value, GP_REG); - SMC_outw (SMC_inw (CTL_REG) | CTL_EEPROM_SELECT | CTL_STORE, CTL_REG); - timeout = 100; - while ((SMC_inw (CTL_REG) & CTL_STORE) && --timeout) - udelay (100); - if (timeout == 0) { - printf ("Timeout Writing EEPROM register %02x\n", reg); - return 0; - } - - return 1; - -} - -void dump_reg (void) -{ - int i, j; - - printf (" "); - for (j = 0; j < 4; j++) { - printf ("Bank%i ", j); - } - printf ("\n"); - for (i = 0; i < 0xF; i += 2) { - printf ("%02x ", i); - for (j = 0; j < 4; j++) { - SMC_SELECT_BANK (j); - printf ("%04x ", SMC_inw (i)); - } - printf ("\n"); - } -} - -#else - -int smc91111_eeprom (int argc, char *argv[]) -{ - printf("Not supported for this board\n"); - return 1; -} - -#endif diff --git a/examples/smc911x_eeprom.c b/examples/smc911x_eeprom.c deleted file mode 100644 index bf22f0a..0000000 --- a/examples/smc911x_eeprom.c +++ /dev/null @@ -1,383 +0,0 @@ -/* - * smc911x_eeprom.c - EEPROM interface to SMC911x parts. - * Only tested on SMSC9118 though ... - * - * Copyright 2004-2008 Analog Devices Inc. - * - * Licensed under the GPL-2 or later. - * - * Based on smc91111_eeprom.c which: - * Heavily borrowed from the following peoples GPL'ed software: - * - Wolfgang Denk, DENX Software Engineering, wd@denx.de - * Das U-boot - * - Ladislav Michl ladis@linux-mips.org - * A rejected patch on the U-Boot mailing list - */ - -#include -#include - -#ifdef CONFIG_DRIVER_SMC911X - -#include "../drivers/net/smc911x.h" - -/** - * smsc_ctrlc - detect press of CTRL+C (common ctrlc() isnt exported!?) - */ -static int smsc_ctrlc(void) -{ - return (tstc() && getc() == 0x03); -} - -/** - * usage - dump usage information - */ -static void usage(void) -{ - puts( - "MAC/EEPROM Commands:\n" - " P : Print the MAC addresses\n" - " D : Dump the EEPROM contents\n" - " M : Dump the MAC contents\n" - " C : Copy the MAC address from the EEPROM to the MAC\n" - " W : Write a register in the EEPROM or in the MAC\n" - " Q : Quit\n" - "\n" - "Some commands take arguments:\n" - " W \n" - " E: EEPROM M: MAC\n" - ); -} - -/** - * dump_regs - dump the MAC registers - * - * Registers 0x00 - 0x50 are FIFOs. The 0x50+ are the control registers - * and they're all 32bits long. 0xB8+ are reserved, so don't bother. - */ -static void dump_regs(void) -{ - u8 i, j = 0; - for (i = 0x50; i < 0xB8; i += sizeof(u32)) - printf("%02x: 0x%08x %c", i, - smc911x_reg_read(CONFIG_DRIVER_SMC911X_BASE + i), - (j++ % 2 ? '\n' : ' ')); -} - -/** - * do_eeprom_cmd - handle eeprom communication - */ -static int do_eeprom_cmd(int cmd, u8 reg) -{ - if (smc911x_reg_read(E2P_CMD) & E2P_CMD_EPC_BUSY) { - printf("eeprom_cmd: busy at start (E2P_CMD = 0x%08x)\n", - smc911x_reg_read(E2P_CMD)); - return -1; - } - - smc911x_reg_write(E2P_CMD, E2P_CMD_EPC_BUSY | cmd | reg); - - while (smc911x_reg_read(E2P_CMD) & E2P_CMD_EPC_BUSY) - if (smsc_ctrlc()) { - printf("eeprom_cmd: timeout (E2P_CMD = 0x%08x)\n", - smc911x_reg_read(E2P_CMD)); - return -1; - } - - return 0; -} - -/** - * read_eeprom_reg - read specified register in EEPROM - */ -static u8 read_eeprom_reg(u8 reg) -{ - int ret = do_eeprom_cmd(E2P_CMD_EPC_CMD_READ, reg); - return (ret ? : smc911x_reg_read(E2P_DATA)); -} - -/** - * write_eeprom_reg - write specified value into specified register in EEPROM - */ -static int write_eeprom_reg(u8 value, u8 reg) -{ - int ret; - - /* enable erasing/writing */ - ret = do_eeprom_cmd(E2P_CMD_EPC_CMD_EWEN, reg); - if (ret) - goto done; - - /* erase the eeprom reg */ - ret = do_eeprom_cmd(E2P_CMD_EPC_CMD_ERASE, reg); - if (ret) - goto done; - - /* write the eeprom reg */ - smc911x_reg_write(E2P_DATA, value); - ret = do_eeprom_cmd(E2P_CMD_EPC_CMD_WRITE, reg); - if (ret) - goto done; - - /* disable erasing/writing */ - ret = do_eeprom_cmd(E2P_CMD_EPC_CMD_EWDS, reg); - - done: - return ret; -} - -/** - * skip_space - find first non-whitespace in given pointer - */ -static char *skip_space(char *buf) -{ - while (buf[0] == ' ' || buf[0] == '\t') - ++buf; - return buf; -} - -/** - * write_stuff - handle writing of MAC registers / eeprom - */ -static void write_stuff(char *line) -{ - char dest; - char *endp; - u8 reg; - u32 value; - - /* Skip over the "W " part of the command */ - line = skip_space(line + 1); - - /* Figure out destination */ - switch (line[0]) { - case 'E': - case 'M': - dest = line[0]; - break; - default: - invalid_usage: - printf("ERROR: Invalid write usage\n"); - usage(); - return; - } - - /* Get the register to write */ - line = skip_space(line + 1); - reg = simple_strtoul(line, &endp, 16); - if (line == endp) - goto invalid_usage; - - /* Get the value to write */ - line = skip_space(endp); - value = simple_strtoul(line, &endp, 16); - if (line == endp) - goto invalid_usage; - - /* Check for trailing cruft */ - line = skip_space(endp); - if (line[0]) - goto invalid_usage; - - /* Finally, execute the command */ - if (dest == 'E') { - printf("Writing EEPROM register %02x with %02x\n", reg, value); - write_eeprom_reg(value, reg); - } else { - printf("Writing MAC register %02x with %08x\n", reg, value); - smc911x_reg_write(CONFIG_DRIVER_SMC911X_BASE + reg, value); - } -} - -/** - * copy_from_eeprom - copy MAC address in eeprom to address registers - */ -static void copy_from_eeprom(void) -{ - ulong addrl = - read_eeprom_reg(0x01) | - read_eeprom_reg(0x02) << 8 | - read_eeprom_reg(0x03) << 16 | - read_eeprom_reg(0x04) << 24; - ulong addrh = - read_eeprom_reg(0x05) | - read_eeprom_reg(0x06) << 8; - smc911x_set_mac_csr(ADDRL, addrl); - smc911x_set_mac_csr(ADDRH, addrh); - puts("EEPROM contents copied to MAC\n"); -} - -/** - * print_macaddr - print MAC address registers and MAC address in eeprom - */ -static void print_macaddr(void) -{ - puts("Current MAC Address in MAC: "); - ulong addrl = smc911x_get_mac_csr(ADDRL); - ulong addrh = smc911x_get_mac_csr(ADDRH); - printf("%02x:%02x:%02x:%02x:%02x:%02x\n", - (u8)(addrl), (u8)(addrl >> 8), (u8)(addrl >> 16), - (u8)(addrl >> 24), (u8)(addrh), (u8)(addrh >> 8)); - - puts("Current MAC Address in EEPROM: "); - int i; - for (i = 1; i < 6; ++i) - printf("%02x:", read_eeprom_reg(i)); - printf("%02x\n", read_eeprom_reg(i)); -} - -/** - * dump_eeprom - dump the whole content of the EEPROM - */ -static void dump_eeprom(void) -{ - int i; - puts("EEPROM:\n"); - for (i = 0; i < 7; ++i) - printf("%02x: 0x%02x\n", i, read_eeprom_reg(i)); -} - -/** - * smc911x_init - get the MAC/EEPROM up and ready for use - */ -static int smc911x_init(void) -{ - /* See if there is anything there */ - if (!smc911x_detect_chip()) - return 1; - - smc911x_reset(); - - /* Make sure we set EEDIO/EECLK to the EEPROM */ - if (smc911x_reg_read(GPIO_CFG) & GPIO_CFG_EEPR_EN) { - while (smc911x_reg_read(E2P_CMD) & E2P_CMD_EPC_BUSY) - if (smsc_ctrlc()) { - printf("init: timeout (E2P_CMD = 0x%08x)\n", - smc911x_reg_read(E2P_CMD)); - return 1; - } - smc911x_reg_write(GPIO_CFG, smc911x_reg_read(GPIO_CFG) & ~GPIO_CFG_EEPR_EN); - } - - return 0; -} - -/** - * getline - consume a line of input and handle some escape sequences - */ -static char *getline(void) -{ - static char buffer[100]; - char c; - size_t i; - - i = 0; - while (1) { - buffer[i] = '\0'; - while (!tstc()) - continue; - - c = getc(); - /* Convert to uppercase */ - if (c >= 'a' && c <= 'z') - c -= ('a' - 'A'); - - switch (c) { - case '\r': /* Enter/Return key */ - case '\n': - puts("\n"); - return buffer; - - case 0x03: /* ^C - break */ - return NULL; - - case 0x5F: - case 0x08: /* ^H - backspace */ - case 0x7F: /* DEL - backspace */ - if (i) { - puts("\b \b"); - i--; - } - break; - - default: - /* Ignore control characters */ - if (c < 0x20) - break; - /* Queue up all other characters */ - buffer[i++] = c; - printf("%c", c); - break; - } - } -} - -/** - * smc911x_eeprom - our application's main() function - */ -int smc911x_eeprom(int argc, char *argv[]) -{ - /* Print the ABI version */ - app_startup(argv); - if (XF_VERSION != get_version()) { - printf("Expects ABI version %d\n", XF_VERSION); - printf("Actual U-Boot ABI version %lu\n", get_version()); - printf("Can't run\n\n"); - return 1; - } - - /* Initialize the MAC/EEPROM somewhat */ - puts("\n"); - if (smc911x_init()) - return 1; - - /* Dump helpful usage information */ - puts("\n"); - usage(); - puts("\n"); - - while (1) { - char *line; - - /* Send the prompt and wait for a line */ - puts("eeprom> "); - line = getline(); - - /* Got a ctrl+c */ - if (!line) - return 0; - - /* Eat leading space */ - line = skip_space(line); - - /* Empty line, try again */ - if (!line[0]) - continue; - - /* Only accept 1 letter commands */ - if (line[0] && line[1] && line[1] != ' ' && line[1] != '\t') - goto unknown_cmd; - - /* Now parse the command */ - switch (line[0]) { - case 'W': write_stuff(line); break; - case 'D': dump_eeprom(); break; - case 'M': dump_regs(); break; - case 'C': copy_from_eeprom(); break; - case 'P': print_macaddr(); break; - unknown_cmd: - default: puts("ERROR: Unknown command!\n\n"); - case '?': - case 'H': usage(); break; - case 'Q': return 0; - } - } -} - -#else -int smc911x_eeprom(int argc, char *argv[]) -{ - puts("Not supported for this board\n"); - return 1; -} -#endif diff --git a/examples/sparc.lds b/examples/sparc.lds deleted file mode 100644 index 9733daa..0000000 --- a/examples/sparc.lds +++ /dev/null @@ -1,61 +0,0 @@ -/* - * (C) Copyright 2003, Psyent Corporation - * Scott McNutt - * - * See file CREDITS for list of people who contributed to this - * project. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - */ - - -OUTPUT_FORMAT("elf32-sparc", "elf32-sparc", "elf32-sparc") -OUTPUT_ARCH(sparc) -ENTRY(_start) - -SECTIONS -{ - .text : - { - *(.text) - } - __text_end = .; - - . = ALIGN(4); - .rodata : - { - *(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*))) - } - __rodata_end = .; - - . = ALIGN(4); - .data : - { - *(.data) - } - . = ALIGN(4); - __data_end = .; - - __bss_start = .; - . = ALIGN(4); - .bss : - { - *(.bss) - } - . = ALIGN(4); - __bss_end = .; - _end = .; -} diff --git a/examples/standalone/.gitignore b/examples/standalone/.gitignore new file mode 100644 index 0000000..0d1864c --- /dev/null +++ b/examples/standalone/.gitignore @@ -0,0 +1,11 @@ +/82559_eeprom +/hello_world +/interrupt +/mem_to_mem_idma2intr +/test_burst +/timer +/sched +/smc91111_eeprom +/smc911x_eeprom +*.bin +*.srec diff --git a/examples/standalone/82559_eeprom.c b/examples/standalone/82559_eeprom.c new file mode 100644 index 0000000..5e2eee9 --- /dev/null +++ b/examples/standalone/82559_eeprom.c @@ -0,0 +1,357 @@ + +/* + * Copyright 1998-2001 by Donald Becker. + * This software may be used and distributed according to the terms of + * the GNU General Public License (GPL), incorporated herein by reference. + * Contact the author for use under other terms. + * + * This program must be compiled with "-O"! + * See the bottom of this file for the suggested compile-command. + * + * The author may be reached as becker@scyld.com, or C/O + * Scyld Computing Corporation + * 410 Severn Ave., Suite 210 + * Annapolis MD 21403 + * + * Common-sense licensing statement: Using any portion of this program in + * your own program means that you must give credit to the original author + * and release the resulting code under the GPL. + */ + +#define _PPC_STRING_H_ /* avoid unnecessary str/mem functions */ + +#include +#include +#include + + +/* Default EEPROM for i82559 */ +static unsigned short default_eeprom[64] = { + 0x0100, 0x0302, 0x0504, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, + 0xffff, 0xffff, 0x40c0, 0x0000, 0x0000, 0xffff, 0xffff, 0xffff, + 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, + 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, + 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, + 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, + 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, + 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff +}; + +static unsigned short eeprom[256]; + +static int eeprom_size = 64; +static int eeprom_addr_size = 6; + +static int debug = 0; + +static inline unsigned short swap16(unsigned short x) +{ + return (((x & 0xff) << 8) | ((x & 0xff00) >> 8)); +} + + +void * memcpy(void * dest,const void *src,size_t count) +{ + char *tmp = (char *) dest, *s = (char *) src; + + while (count--) + *tmp++ = *s++; + + return dest; +} + + +/* The EEPROM commands include the alway-set leading bit. */ +#define EE_WRITE_CMD (5) +#define EE_READ_CMD (6) +#define EE_ERASE_CMD (7) + +/* Serial EEPROM section. */ +#define EE_SHIFT_CLK 0x01 /* EEPROM shift clock. */ +#define EE_CS 0x02 /* EEPROM chip select. */ +#define EE_DATA_WRITE 0x04 /* EEPROM chip data in. */ +#define EE_DATA_READ 0x08 /* EEPROM chip data out. */ +#define EE_ENB (0x4800 | EE_CS) +#define EE_WRITE_0 0x4802 +#define EE_WRITE_1 0x4806 +#define EE_OFFSET 14 + +/* Delay between EEPROM clock transitions. */ +#define eeprom_delay(ee_addr) inw(ee_addr) + +/* Wait for the EEPROM to finish the previous operation. */ +static int eeprom_busy_poll(long ee_ioaddr) +{ + int i; + outw(EE_ENB, ee_ioaddr); + for (i = 0; i < 10000; i++) /* Typical 2000 ticks */ + if (inw(ee_ioaddr) & EE_DATA_READ) + break; + return i; +} + +/* This executes a generic EEPROM command, typically a write or write enable. + It returns the data output from the EEPROM, and thus may also be used for + reads. */ +static int do_eeprom_cmd(long ioaddr, int cmd, int cmd_len) +{ + unsigned retval = 0; + long ee_addr = ioaddr + EE_OFFSET; + + if (debug > 1) + printf(" EEPROM op 0x%x: ", cmd); + + outw(EE_ENB | EE_SHIFT_CLK, ee_addr); + + /* Shift the command bits out. */ + do { + short dataval = (cmd & (1 << cmd_len)) ? EE_WRITE_1 : EE_WRITE_0; + outw(dataval, ee_addr); + eeprom_delay(ee_addr); + if (debug > 2) + printf("%X", inw(ee_addr) & 15); + outw(dataval | EE_SHIFT_CLK, ee_addr); + eeprom_delay(ee_addr); + retval = (retval << 1) | ((inw(ee_addr) & EE_DATA_READ) ? 1 : 0); + } while (--cmd_len >= 0); +#if 0 + outw(EE_ENB, ee_addr); +#endif + /* Terminate the EEPROM access. */ + outw(EE_ENB & ~EE_CS, ee_addr); + if (debug > 1) + printf(" EEPROM result is 0x%5.5x.\n", retval); + return retval; +} + +static int read_eeprom(long ioaddr, int location, int addr_len) +{ + return do_eeprom_cmd(ioaddr, ((EE_READ_CMD << addr_len) | location) + << 16 , 3 + addr_len + 16) & 0xffff; +} + +static void write_eeprom(long ioaddr, int index, int value, int addr_len) +{ + long ee_ioaddr = ioaddr + EE_OFFSET; + int i; + + /* Poll for previous op finished. */ + eeprom_busy_poll(ee_ioaddr); /* Typical 0 ticks */ + /* Enable programming modes. */ + do_eeprom_cmd(ioaddr, (0x4f << (addr_len-4)), 3 + addr_len); + /* Do the actual write. */ + do_eeprom_cmd(ioaddr, + (((EE_WRITE_CMD</dev/null + +$(BIN): +$(obj)%.bin: $(obj)% + $(OBJCOPY) -O binary $< $@ 2>/dev/null + +######################################################################### + +# defines $(obj).depend target +include $(SRCTREE)/rules.mk + +sinclude $(obj).depend + +######################################################################### diff --git a/examples/standalone/README.smc91111_eeprom b/examples/standalone/README.smc91111_eeprom new file mode 100644 index 0000000..28e7e69 --- /dev/null +++ b/examples/standalone/README.smc91111_eeprom @@ -0,0 +1,246 @@ +This is the readme for the Das U-Boot standalone program smc91111 + +The main purpose of this is to manage MAC addresses on platforms +which include the SMC91111 integrated 10/100 MAC Phy, with attached +EEPROMs. + + +Contents: +------------------------ +1. Ensuring U-boot's MAC address can be set in hardware +2. Running the smc91111_eeprom program +3. Setting MAC addresses +4. Other things you can do with this +5. Things to be done. + + +1. Ensuring U-boot's MAC address can be set in hardware +-------------------------------------------------------------------------- + +On the Internet - MAC addresses are very important. Short for Media +Access Control address, a hardware address that uniquely identifies +each node of a network. When things are not unique - bad things +can happen. This is why U-Boot makes it difficult to change MAC +addresses. + +To find out who has a MAC address, or to purchase MAC addresses, goto +the IEEE, at: +http://standards.ieee.org/regauth/oui/index.shtml + +To change your MAC address, there can not be a MAC address predefined in +U-Boot. To ensure that this does not occur, check your +include/configs/.h file, and check to see that the following +settings are _not_ or commented out there. + +#define HARDCODE_MAC 1 +#define CONFIG_ETHADDR 02:80:ad:20:31:b8 + +The purpose of HARDCODE_MAC is to hardcode the MAC address in software, +(not what we want), or to preset it to 02:80:ad:20:31:b8 (not what we +want either). + +You can check this in a running U-Boot, by doing a power cycle, then +before U-Boot tries to do any networking, running the 'printenv' command + + BOOT> printenv + + ethaddr=02:80:ad:20:31:b8 + +If you see the 'ethaddr' variable show up, like the above, you need to +recompile U-Boot, with the above settings commented out of the +include/configs/.h file. + +2. Running the smc91111_eeprom program +--------------------------------------------------------------------- + +After Uboot is compiled, there should be three files of interest: +-rwxr-xr-x 1 8806 2004-10-11 14:00 smc91111_eeprom <- ELF +-rwxr-xr-x 1 3440 2004-10-11 14:00 smc91111_eeprom.bin <- BIN +-rwxr-xr-x 1 9524 2004-10-11 14:00 smc91111_eeprom.srec <- SREC + +if there is not, check the examples/Makefile, and ensure there is something +like for your architecture: + + ifeq ($(ARCH),blackfin) + SREC += smc91111_eeprom.srec + BIN += smc91111_eeprom.bin smc91111_eeprom + endif + +To load the files: there are two methods: a) serial or b) network. Since +it is not a good idea to start doing things on the network before the +MAC address is set, this example will do things over serial. + +a) Loading the elf file via the serial port +-------------------------------------------- +Loading the elf is very easy - just ensure that the location +you specify things to load as is not the load address specified +in the Makefile. + +BOOT> loadb 0x1000000 + +## Ready for binary (kermit) download to 0x01000000 at 57600 bps... + +(type CNTL-\ then C) +(Back at local machine) +---------------------------------------------------- +Kermit>send ~/u-boot_1.1.1/examples/smc91111_eeprom +Kermit>connect + +Connecting to /dev/ttyS0, speed 57600 + Escape character: Ctrl-\ (ASCII 28, FS): enabled +Type the escape character followed by C to get back, +or followed by ? to see other options. +---------------------------------------------------- +## Total Size = 0x00002266 = 8806 Bytes +## Start Addr = 0x01000000 + +BOOT> bootelf 0x1000000 + +Loading .text @ 0x00001000 (3440 bytes) +## Starting application at 0x000010d8 ... + +SMC91111> + +b) Loading the binary file via the serial port +----------------------------------------------- +For many toolchains, the entry point is not the load point. +The Load point is a hard coded address from the +examples/Makefile. The entry point can be found by doing something +like: + + u-boot_1.1.1/examples> bfin-elf-objdump -d smc91111_eeprom |less + + smc91111_eeprom: file format elf32-bfin + + Disassembly of section .text: + + 00001000 : + 1000: + 000010d8 : + +You can see that the entry point (or the address that should be +jumped to is 0x10d8). This is also the same as the entry point +of the elf file. + +Now we load it to the actual load location: + +BOOT> loadb 0x1000 + +## Ready for binary (kermit) download to 0x00001000 at 57600 bps... + +(Back at pinky.dsl-only.net) +---------------------------------------------------- +Kermit>send /tftpboot/eeprom.bin +Kermit>connect + +Connecting to /dev/ttyS0, speed 57600 + Escape character: Ctrl-\ (ASCII 28, FS): enabled +Type the escape character followed by C to get back, +or followed by ? to see other options. +---------------------------------------------------- +## Total Size = 0x00000d70 = 3440 Bytes +## Start Addr = 0x00001000 + +BOOT> go 0x10D8 + +## Starting application at 0x000010D8 ... + +SMC91111> + +3. Setting MAC addresses +-------------------------------------------------------------------------- + +The MAC address can be stored in four locations: + +-Boot environmental variable in Flash <- can not change, without + re-flashing U-boot. +U-Boot environental variable <- can not change, without + resetting board/U-Boot +LAN91C111 Registers <- volitle +LAN91C111 EEPROM <- Non Volitle + +If you have not activated the network, and do not have a hardcoded +or pre-assigned MAC address in U-boot, the environmental variables +should be blank, and allow you to set things one time. + +To set the EEPROM MAC address to 12:34:56:78:9A:BC + +SMC91111> W E 20 3412 + +Writing EEPROM register 20 with 3412 +SMC91111> W E 21 7856 + +Writing EEPROM register 21 with 7856 +SMC91111> W E 22 BC9A + +Writing EEPROM register 22 with bc9a +EEPROM contents copied to MAC +SMC91111> P + +Current MAC Address in SMSC91111 12:34:56:78:9a:bc +Current MAC Address in EEPROM 12:34:56:78:9a:bc + +(CNTRL-C to exit) +SMC91111> ## Application terminated, rc = 0x0 + +BOOT> reset +U-Boot 1.1.1 (gcc version: 3.3.3) +Release Version Beta released on Oct 10 2004 - 00:34:35 +Blackfin support by LG Soft India +For further information please check this link http://www.blackfin.uclinux.org +BOOT> ping 192.168.0.4 + +Using MAC Address 12:34:56:78:9A:BC +host 192.168.0.4 is alive + + +4. Other things that you can do +-------------------------------------------------------------------------- +After the stand alone application is running, there are a few options: + - P : Print the MAC + - D : Dump the LAN91C111 EEPROM contents + - M : Dump the LAN91C111 MAC contents + - C : Copies the MAC address from the EEPROM to the LAN91C111 + - W : Write a register in the EEPROM or in the MAC + +SMC91111> P + +Current MAC Address in SMSC91111 12:34:56:78:9a:bc +Current MAC Address in EEPROM 12:34:56:78:9a:bc + +SMC91111> D + +IOS2-0 000 001 002 003 004 005 006 007 +CONFIG 00:ffff 04:ffff 08:ffff 0c:ffff 10:ffff 14:ffff 18:ffff 1c:ffff +BASE 01:ffff 05:ffff 09:ffff 0d:ffff 11:ffff 15:ffff 19:ffff 1d:ffff + 02:ffff 06:ffff 0a:ffff 0e:0020 12:ffff 16:ffff 1a:ffff 1e:ffff + 03:ffff 07:ffff 0b:ffff 0f:ffff 13:ffff 17:ffff 1b:ffff 1f:ffff + +20:3412 21:7856 22:bc9a 23:ffff 24:ffff 25:ffff 26:ffff 27:ffff +28:ffff 29:ffff 2a:ffff 2b:ffff 2c:ffff 2d:ffff 2e:ffff 2f:ffff +30:ffff 31:ffff 32:ffff 33:ffff 34:ffff 35:ffff 36:ffff 37:ffff +38:ffff 39:ffff 3a:ffff 3b:ffff 3c:ffff 3d:ffff 3e:ffff 3f:ffff + +SMC91111> M + + Bank0 Bank1 Bank2 Bank3 +00 0000 a0b1 3332 0000 +02 0000 1801 8000 0000 +04 0000 3412 8080 0000 +06 0000 7856 003f 0000 +08 0404 bc9a 02df 3332 +0a 0000 ffff 02df 3391 +0c 0000 1214 0004 001f +0e 3300 3301 3302 3303 + +SMC91111> C + +EEPROM contents copied to MAC + +SMC91111> W E 2A ABCD + +Writing EEPROM register 2a with abcd + +SMC91111> W M 14 FF00 + +Writing MAC register bank 1, reg 04 with ff00 diff --git a/examples/standalone/eepro100_eeprom.c b/examples/standalone/eepro100_eeprom.c new file mode 100644 index 0000000..2b15d05 --- /dev/null +++ b/examples/standalone/eepro100_eeprom.c @@ -0,0 +1,215 @@ +/* + * Copyright 1998-2001 by Donald Becker. + * This software may be used and distributed according to the terms of + * the GNU General Public License (GPL), incorporated herein by reference. + * Contact the author for use under other terms. + * + * This program must be compiled with "-O"! + * See the bottom of this file for the suggested compile-command. + * + * The author may be reached as becker@scyld.com, or C/O + * Scyld Computing Corporation + * 410 Severn Ave., Suite 210 + * Annapolis MD 21403 + * + * Common-sense licensing statement: Using any portion of this program in + * your own program means that you must give credit to the original author + * and release the resulting code under the GPL. + */ + +/* avoid unnecessary memcpy function */ +#define __HAVE_ARCH_MEMCPY +#define _PPC_STRING_H_ + +#include +#include + +static int reset_eeprom(unsigned long ioaddr, unsigned char *hwaddr); + +int eepro100_eeprom(int argc, char *argv[]) +{ + int ret = 0; + + unsigned char hwaddr1[6] = { 0x00, 0x00, 0x02, 0x03, 0x04, 0x05 }; + unsigned char hwaddr2[6] = { 0x00, 0x00, 0x02, 0x03, 0x04, 0x06 }; + + app_startup(argv); + +#if defined(CONFIG_OXC) + ret |= reset_eeprom(0x80000000, hwaddr1); + ret |= reset_eeprom(0x81000000, hwaddr2); +#endif + + return ret; +} + +/* Default EEPROM for i82559 */ +static unsigned short default_eeprom[64] = { + 0x0100, 0x0302, 0x0504, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, + 0xffff, 0xffff, 0x40c0, 0x0000, 0x0000, 0xffff, 0xffff, 0xffff, + 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, + 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, + 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, + 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, + 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, + 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff +}; + +static unsigned short eeprom[256]; + +static int eeprom_size = 64; +static int eeprom_addr_size = 6; + +static int debug = 0; + +static inline unsigned short swap16(unsigned short x) +{ + return (((x & 0xff) << 8) | ((x & 0xff00) >> 8)); +} + +static inline void outw(short data, long addr) +{ + *(volatile short *)(addr) = swap16(data); +} + +static inline short inw(long addr) +{ + return swap16(*(volatile short *)(addr)); +} + +static inline void *memcpy(void *dst, const void *src, unsigned int len) +{ + char *ret = dst; + while (len-- > 0) { + *ret++ = *((char *)src); + src++; + } + return (void *)ret; +} + +/* The EEPROM commands include the alway-set leading bit. */ +#define EE_WRITE_CMD (5) +#define EE_READ_CMD (6) +#define EE_ERASE_CMD (7) + +/* Serial EEPROM section. */ +#define EE_SHIFT_CLK 0x01 /* EEPROM shift clock. */ +#define EE_CS 0x02 /* EEPROM chip select. */ +#define EE_DATA_WRITE 0x04 /* EEPROM chip data in. */ +#define EE_DATA_READ 0x08 /* EEPROM chip data out. */ +#define EE_ENB (0x4800 | EE_CS) +#define EE_WRITE_0 0x4802 +#define EE_WRITE_1 0x4806 +#define EE_OFFSET 14 + +/* Delay between EEPROM clock transitions. */ +#define eeprom_delay(ee_addr) inw(ee_addr) + +/* Wait for the EEPROM to finish the previous operation. */ +static int eeprom_busy_poll(long ee_ioaddr) +{ + int i; + outw(EE_ENB, ee_ioaddr); + for (i = 0; i < 10000; i++) /* Typical 2000 ticks */ + if (inw(ee_ioaddr) & EE_DATA_READ) + break; + return i; +} + +/* This executes a generic EEPROM command, typically a write or write enable. + It returns the data output from the EEPROM, and thus may also be used for + reads. */ +static int do_eeprom_cmd(long ioaddr, int cmd, int cmd_len) +{ + unsigned retval = 0; + long ee_addr = ioaddr + EE_OFFSET; + + if (debug > 1) + printf(" EEPROM op 0x%x: ", cmd); + + outw(EE_ENB | EE_SHIFT_CLK, ee_addr); + + /* Shift the command bits out. */ + do { + short dataval = (cmd & (1 << cmd_len)) ? EE_WRITE_1 : EE_WRITE_0; + outw(dataval, ee_addr); + eeprom_delay(ee_addr); + if (debug > 2) + printf("%X", inw(ee_addr) & 15); + outw(dataval | EE_SHIFT_CLK, ee_addr); + eeprom_delay(ee_addr); + retval = (retval << 1) | ((inw(ee_addr) & EE_DATA_READ) ? 1 : 0); + } while (--cmd_len >= 0); +#if 0 + outw(EE_ENB, ee_addr); +#endif + /* Terminate the EEPROM access. */ + outw(EE_ENB & ~EE_CS, ee_addr); + if (debug > 1) + printf(" EEPROM result is 0x%5.5x.\n", retval); + return retval; +} + +static int read_eeprom(long ioaddr, int location, int addr_len) +{ + return do_eeprom_cmd(ioaddr, ((EE_READ_CMD << addr_len) | location) + << 16 , 3 + addr_len + 16) & 0xffff; +} + +static void write_eeprom(long ioaddr, int index, int value, int addr_len) +{ + long ee_ioaddr = ioaddr + EE_OFFSET; + int i; + + /* Poll for previous op finished. */ + eeprom_busy_poll(ee_ioaddr); /* Typical 0 ticks */ + /* Enable programming modes. */ + do_eeprom_cmd(ioaddr, (0x4f << (addr_len-4)), 3 + addr_len); + /* Do the actual write. */ + do_eeprom_cmd(ioaddr, + (((EE_WRITE_CMD< +#include + +int hello_world (int argc, char *argv[]) +{ + int i; + + /* Print the ABI version */ + app_startup(argv); + printf ("Example expects ABI version %d\n", XF_VERSION); + printf ("Actual U-Boot ABI version %d\n", (int)get_version()); + + printf ("Hello World\n"); + + printf ("argc = %d\n", argc); + + for (i=0; i<=argc; ++i) { + printf ("argv[%d] = \"%s\"\n", + i, + argv[i] ? argv[i] : ""); + } + + printf ("Hit any key to exit ... "); + while (!tstc()) + ; + /* consume input */ + (void) getc(); + + printf ("\n\n"); + return (0); +} diff --git a/examples/standalone/interrupt.c b/examples/standalone/interrupt.c new file mode 100644 index 0000000..f3061d1 --- /dev/null +++ b/examples/standalone/interrupt.c @@ -0,0 +1,81 @@ +/* + * (C) Copyright 2006 + * Detlev Zundel, DENX Software Engineering, dzu@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + * + * This is a very simple standalone application demonstrating + * catching IRQs on the MPC52xx architecture. + * + * The interrupt to be intercepted can be specified as an argument + * to the application. Specifying nothing will intercept IRQ1 on the + * MPC5200 platform. On the CR825 carrier board from MicroSys this + * maps to the ABORT switch :) + * + * Note that the specified vector is only a logical number specified + * by the respective header file. + */ + +#include +#include +#include + +#if defined(CONFIG_MPC5xxx) +#define DFL_IRQ MPC5XXX_IRQ1 +#else +#define DFL_IRQ 0 +#endif + +static void irq_handler (void *arg); + +int interrupt (int argc, char *argv[]) +{ + int c, irq = -1; + + app_startup (argv); + + if (argc > 1) + irq = simple_strtoul (argv[1], NULL, 0); + if ((irq < 0) || (irq > NR_IRQS)) + irq = DFL_IRQ; + + printf ("Installing handler for irq vector %d and doing busy wait\n", + irq); + printf ("Press 'q' to quit\n"); + + /* Install interrupt handler */ + install_hdlr (irq, irq_handler, NULL); + while ((c = getc ()) != 'q') { + printf ("Ok, ok, I am still alive!\n"); + } + + free_hdlr (irq); + printf ("\nInterrupt handler has been uninstalled\n"); + + return (0); +} + +/* + * Handler for interrupt + */ +static void irq_handler (void *arg) +{ + /* just for demonstration */ + printf ("+"); +} diff --git a/examples/standalone/mem_to_mem_idma2intr.c b/examples/standalone/mem_to_mem_idma2intr.c new file mode 100644 index 0000000..15779d0 --- /dev/null +++ b/examples/standalone/mem_to_mem_idma2intr.c @@ -0,0 +1,384 @@ +/* The dpalloc function used and implemented in this file was derieved + * from PPCBoot/U-Boot file "cpu/mpc8260/commproc.c". + */ + +/* Author: Arun Dharankar + * This example is meant to only demonstrate how the IDMA could be used. + */ + +/* + * This file is based on "arch/ppc/8260_io/commproc.c" - here is it's + * copyright notice: + * + * General Purpose functions for the global management of the + * 8260 Communication Processor Module. + * Copyright (c) 1999 Dan Malek (dmalek@jlc.net) + * Copyright (c) 2000 MontaVista Software, Inc (source@mvista.com) + * 2.3.99 Updates + * + * In addition to the individual control of the communication + * channels, there are a few functions that globally affect the + * communication processor. + * + * Buffer descriptors must be allocated from the dual ported memory + * space. The allocator for that is here. When the communication + * process is reset, we reclaim the memory available. There is + * currently no deallocator for this memory. + */ + + +#include +#include + +DECLARE_GLOBAL_DATA_PTR; + +#define STANDALONE + +#ifndef STANDALONE /* Linked into/Part of PPCBoot */ +#include +#include +#else /* Standalone app of PPCBoot */ +#define WATCHDOG_RESET() { \ + *(ushort *)(CONFIG_SYS_IMMR + 0x1000E) = 0x556c; \ + *(ushort *)(CONFIG_SYS_IMMR + 0x1000E) = 0xaa39; \ + } +#endif /* STANDALONE */ + +static int debug = 1; + +#define DEBUG(fmt, args...) { \ + if(debug != 0) { \ + printf("[%s %d %s]: ",__FILE__,__LINE__,__FUNCTION__); \ + printf(fmt, ##args); \ + } \ +} + +#define CPM_CR_IDMA1_SBLOCK (0x14) +#define CPM_CR_IDMA2_SBLOCK (0x15) +#define CPM_CR_IDMA3_SBLOCK (0x16) +#define CPM_CR_IDMA4_SBLOCK (0x17) +#define CPM_CR_IDMA1_PAGE (0x07) +#define CPM_CR_IDMA2_PAGE (0x08) +#define CPM_CR_IDMA3_PAGE (0x09) +#define CPM_CR_IDMA4_PAGE (0x0a) +#define PROFF_IDMA1_BASE ((uint)0x87fe) +#define PROFF_IDMA2_BASE ((uint)0x88fe) +#define PROFF_IDMA3_BASE ((uint)0x89fe) +#define PROFF_IDMA4_BASE ((uint)0x8afe) + +#define CPM_CR_INIT_TRX ((ushort)0x0000) +#define CPM_CR_FLG ((ushort)0x0001) + +#define mk_cr_cmd(PG, SBC, MCN, OP) \ + ((PG << 26) | (SBC << 21) | (MCN << 6) | OP) + + +#pragma pack(1) +typedef struct ibdbits { + unsigned b_valid:1; + unsigned b_resv1:1; + unsigned b_wrap:1; + unsigned b_interrupt:1; + unsigned b_last:1; + unsigned b_resv2:1; + unsigned b_cm:1; + unsigned b_resv3:2; + unsigned b_sdn:1; + unsigned b_ddn:1; + unsigned b_dgbl:1; + unsigned b_dbo:2; + unsigned b_resv4:1; + unsigned b_ddtb:1; + unsigned b_resv5:2; + unsigned b_sgbl:1; + unsigned b_sbo:2; + unsigned b_resv6:1; + unsigned b_sdtb:1; + unsigned b_resv7:9; +} ibdbits_t; + +#pragma pack(1) +typedef union ibdbitsu { + ibdbits_t b; + uint i; +} ibdbitsu_t; + +#pragma pack(1) +typedef struct idma_buf_desc { + ibdbitsu_t ibd_bits; /* Status and Control */ + uint ibd_datlen; /* Data length in buffer */ + uint ibd_sbuf; /* Source buffer addr in host mem */ + uint ibd_dbuf; /* Destination buffer addr in host mem */ +} ibd_t; + + +#pragma pack(1) +typedef struct dcmbits { + unsigned b_fb:1; + unsigned b_lp:1; + unsigned b_resv1:3; + unsigned b_tc2:1; + unsigned b_resv2:1; + unsigned b_wrap:3; + unsigned b_sinc:1; + unsigned b_dinc:1; + unsigned b_erm:1; + unsigned b_dt:1; + unsigned b_sd:2; +} dcmbits_t; + +#pragma pack(1) +typedef union dcmbitsu { + dcmbits_t b; + ushort i; +} dcmbitsu_t; + +#pragma pack(1) +typedef struct pram_idma { + ushort pi_ibase; + dcmbitsu_t pi_dcmbits; + ushort pi_ibdptr; + ushort pi_dprbuf; + ushort pi_bufinv; /* internal to CPM */ + ushort pi_ssmax; + ushort pi_dprinptr; /* internal to CPM */ + ushort pi_sts; + ushort pi_dproutptr; /* internal to CPM */ + ushort pi_seob; + ushort pi_deob; + ushort pi_dts; + ushort pi_retadd; + ushort pi_resv1; /* internal to CPM */ + uint pi_bdcnt; + uint pi_sptr; + uint pi_dptr; + uint pi_istate; +} pram_idma_t; + + +volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR; +volatile ibd_t *bdf; +volatile pram_idma_t *piptr; + +volatile int dmadone; +volatile int *dmadonep = &dmadone; +void dmadone_handler (void *); + +int idma_init (void); +void idma_start (int, int, int, uint, uint, int); +uint dpalloc (uint, uint); + + +uint dpinit_done = 0; + + +#ifdef STANDALONE +int ctrlc (void) +{ + if (tstc()) { + switch (getc ()) { + case 0x03: /* ^C - Control C */ + return 1; + default: + break; + } + } + return 0; +} +void * memset(void * s,int c,size_t count) +{ + char *xs = (char *) s; + while (count--) + *xs++ = c; + return s; +} +int memcmp(const void * cs,const void * ct,size_t count) +{ + const unsigned char *su1, *su2; + int res = 0; + for( su1 = cs, su2 = ct; 0 < count; ++su1, ++su2, count--) + if ((res = *su1 - *su2) != 0) + break; + return res; +} +#endif /* STANDALONE */ + +#ifdef STANDALONE +int mem_to_mem_idma2intr (int argc, char *argv[]) +#else +int do_idma (bd_t * bd, int argc, char *argv[]) +#endif /* STANDALONE */ +{ + int i; + + app_startup(argv); + dpinit_done = 0; + + idma_init (); + + DEBUG ("Installing dma handler\n"); + install_hdlr (7, dmadone_handler, (void *) bdf); + + memset ((void *) 0x100000, 'a', 512); + memset ((void *) 0x200000, 'b', 512); + + for (i = 0; i < 32; i++) { + printf ("Startin IDMA, iteration=%d\n", i); + idma_start (1, 1, 512, 0x100000, 0x200000, 3); + } + + DEBUG ("Uninstalling dma handler\n"); + free_hdlr (7); + + return 0; +} + +void +idma_start (int sinc, int dinc, int sz, uint sbuf, uint dbuf, int ttype) +{ + /* ttype is for M-M, M-P, P-M or P-P: not used for now */ + + piptr->pi_istate = 0; /* manual says: clear it before every START_IDMA */ + piptr->pi_dcmbits.b.b_resv1 = 0; + + if (sinc == 1) + piptr->pi_dcmbits.b.b_sinc = 1; + else + piptr->pi_dcmbits.b.b_sinc = 0; + + if (dinc == 1) + piptr->pi_dcmbits.b.b_dinc = 1; + else + piptr->pi_dcmbits.b.b_dinc = 0; + + piptr->pi_dcmbits.b.b_erm = 0; + piptr->pi_dcmbits.b.b_sd = 0x00; /* M-M */ + + bdf->ibd_sbuf = sbuf; + bdf->ibd_dbuf = dbuf; + bdf->ibd_bits.b.b_cm = 0; + bdf->ibd_bits.b.b_interrupt = 1; + bdf->ibd_bits.b.b_wrap = 1; + bdf->ibd_bits.b.b_last = 1; + bdf->ibd_bits.b.b_sdn = 0; + bdf->ibd_bits.b.b_ddn = 0; + bdf->ibd_bits.b.b_dgbl = 0; + bdf->ibd_bits.b.b_ddtb = 0; + bdf->ibd_bits.b.b_sgbl = 0; + bdf->ibd_bits.b.b_sdtb = 0; + bdf->ibd_bits.b.b_dbo = 1; + bdf->ibd_bits.b.b_sbo = 1; + bdf->ibd_bits.b.b_valid = 1; + bdf->ibd_datlen = 512; + + *dmadonep = 0; + + immap->im_sdma.sdma_idmr2 = (uchar) 0xf; + + immap->im_cpm.cp_cpcr = mk_cr_cmd (CPM_CR_IDMA2_PAGE, + CPM_CR_IDMA2_SBLOCK, 0x0, + 0x9) | 0x00010000; + + while (*dmadonep != 1) { + if (ctrlc ()) { + DEBUG ("\nInterrupted waiting for DMA interrupt.\n"); + goto done; + } + printf ("Waiting for DMA interrupt (dmadone=%d b_valid = %d)...\n", + dmadone, bdf->ibd_bits.b.b_valid); + udelay (1000000); + } + printf ("DMA complete notification received!\n"); + + done: + DEBUG ("memcmp(0x%08x, 0x%08x, 512) = %d\n", + sbuf, dbuf, memcmp ((void *) sbuf, (void *) dbuf, 512)); + + return; +} + +#define MAX_INT_BUFSZ 64 +#define DCM_WRAP 0 /* MUST be consistant with MAX_INT_BUFSZ */ + +int idma_init (void) +{ + uint memaddr; + + immap->im_cpm.cp_rccr &= ~0x00F3FFFF; + immap->im_cpm.cp_rccr |= 0x00A00A00; + + memaddr = dpalloc (sizeof (pram_idma_t), 64); + + *(volatile ushort *) &immap->im_dprambase[PROFF_IDMA2_BASE] = memaddr; + piptr = (volatile pram_idma_t *) ((uint) (immap) + memaddr); + + piptr->pi_resv1 = 0; /* manual says: clear it */ + piptr->pi_dcmbits.b.b_fb = 0; + piptr->pi_dcmbits.b.b_lp = 1; + piptr->pi_dcmbits.b.b_erm = 0; + piptr->pi_dcmbits.b.b_dt = 0; + + memaddr = (uint) dpalloc (sizeof (ibd_t), 64); + piptr->pi_ibase = piptr->pi_ibdptr = (volatile short) memaddr; + bdf = (volatile ibd_t *) ((uint) (immap) + memaddr); + bdf->ibd_bits.b.b_valid = 0; + + memaddr = (uint) dpalloc (64, 64); + piptr->pi_dprbuf = (volatile ushort) memaddr; + piptr->pi_dcmbits.b.b_wrap = 4; + piptr->pi_ssmax = 32; + + piptr->pi_sts = piptr->pi_ssmax; + piptr->pi_dts = piptr->pi_ssmax; + + return 1; +} + +void dmadone_handler (void *arg) +{ + immap->im_sdma.sdma_idmr2 = (uchar) 0x0; + + *dmadonep = 1; + + return; +} + + +static uint dpbase = 0; + +uint dpalloc (uint size, uint align) +{ + volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR; + uint retloc; + uint align_mask, off; + uint savebase; + + /* Pointer to initial global data area */ + + if (dpinit_done == 0) { + dpbase = gd->dp_alloc_base; + dpinit_done = 1; + } + + align_mask = align - 1; + savebase = dpbase; + + if ((off = (dpbase & align_mask)) != 0) + dpbase += (align - off); + + if ((off = size & align_mask) != 0) + size += align - off; + + if ((dpbase + size) >= gd->dp_alloc_top) { + dpbase = savebase; + printf ("dpalloc: ran out of dual port ram!"); + return 0; + } + + retloc = dpbase; + dpbase += size; + + memset ((void *) &immr->im_dprambase[retloc], 0, size); + + return (retloc); +} diff --git a/examples/standalone/mips.lds b/examples/standalone/mips.lds new file mode 100644 index 0000000..717b201 --- /dev/null +++ b/examples/standalone/mips.lds @@ -0,0 +1,59 @@ +/* + * (C) Copyright 2003 + * Wolfgang Denk Engineering, + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +/* +OUTPUT_FORMAT("elf32-bigmips", "elf32-bigmips", "elf32-bigmips") +*/ +OUTPUT_FORMAT("elf32-tradbigmips", "elf32-tradbigmips", "elf32-tradbigmips") +OUTPUT_ARCH(mips) +SECTIONS +{ + .text : + { + *(.text) + } + + . = ALIGN(4); + .rodata : { *(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*))) } + + . = ALIGN(4); + .data : { *(.data) } + + . = .; + _gp = ALIGN(16) + 0x7ff0; + + .got : { + __got_start = .; + *(.got) + __got_end = .; + } + + .sdata : { *(.sdata) } + + . = ALIGN(4); + __bss_start = .; + .sbss (NOLOAD) : { *(.sbss) } + .bss (NOLOAD) : { *(.bss) . = ALIGN(4); } + + _end = .; +} diff --git a/examples/standalone/nios.lds b/examples/standalone/nios.lds new file mode 100644 index 0000000..4c1080b --- /dev/null +++ b/examples/standalone/nios.lds @@ -0,0 +1,61 @@ +/* + * (C) Copyright 2003, Psyent Corporation + * Scott McNutt + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + + +OUTPUT_FORMAT("elf32-nios") +OUTPUT_ARCH(nios) +ENTRY(_start) + +SECTIONS +{ + .text : + { + *(.text) + } + __text_end = .; + + . = ALIGN(4); + .rodata : + { + *(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*))) + } + __rodata_end = .; + + . = ALIGN(4); + .data : + { + *(.data) + } + . = ALIGN(4); + __data_end = .; + + __bss_start = .; + . = ALIGN(4); + .bss (NOLOAD) : + { + *(.bss) + } + . = ALIGN(4); + __bss_end = .; + _end = .; +} diff --git a/examples/standalone/nios2.lds b/examples/standalone/nios2.lds new file mode 100644 index 0000000..a3e5ea8 --- /dev/null +++ b/examples/standalone/nios2.lds @@ -0,0 +1,133 @@ +/* + * (C) Copyright 2004, Psyent Corporation + * Scott McNutt + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + + +OUTPUT_FORMAT("elf32-littlenios2") +OUTPUT_ARCH(nios2) +ENTRY(_start) + +SECTIONS +{ + .text : + { + *(.text) + *(.text.*) + *(.gnu.linkonce.t*) + *(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*))) + *(.gnu.linkonce.r*) + } + . = ALIGN (4); + _etext = .; + PROVIDE (etext = .); + + /* INIT DATA sections - "Small" data (see the gcc -G option) + * is always gp-relative. Here we make all init data sections + * adjacent to simplify the startup code -- and provide + * the global pointer for gp-relative access. + */ + _data = .; + .data : + { + *(.data) + *(.data.*) + *(.gnu.linkonce.d*) + } + + . = ALIGN(16); + _gp = .; /* Global pointer addr */ + PROVIDE (gp = .); + + .sdata : + { + *(.sdata) + *(.sdata.*) + *(.gnu.linkonce.s.*) + } + . = ALIGN(4); + + _edata = .; + PROVIDE (edata = .); + + /* UNINIT DATA - Small uninitialized data is first so it's + * adjacent to sdata and can be referenced via gp. The normal + * bss follows. We keep it adjacent to simplify init code. + */ + __bss_start = .; + .sbss (NOLOAD) : + { + *(.sbss) + *(.sbss.*) + *(.gnu.linkonce.sb.*) + *(.scommon) + } + . = ALIGN(4); + .bss (NOLOAD) : + { + *(.bss) + *(.bss.*) + *(.dynbss) + *(COMMON) + *(.scommon) + } + . = ALIGN(4); + _end = .; + PROVIDE (end = .); + + /* CMD TABLE - uboot command sections + */ + . = .; + __uboot_cmd_start = .; + .u_boot_cmd : + { + *(.u_boot_cmd) + } + . = ALIGN(4); + __u_boot_cmd_end = .; + + /* DEBUG -- symbol table, string table, etc. etc. + */ + .stab 0 : { *(.stab) } + .stabstr 0 : { *(.stabstr) } + .stab.excl 0 : { *(.stab.excl) } + .stab.exclstr 0 : { *(.stab.exclstr) } + .stab.index 0 : { *(.stab.index) } + .stab.indexstr 0 : { *(.stab.indexstr) } + .comment 0 : { *(.comment) } + .debug 0 : { *(.debug) } + .line 0 : { *(.line) } + .debug_srcinfo 0 : { *(.debug_srcinfo) } + .debug_sfnames 0 : { *(.debug_sfnames) } + .debug_aranges 0 : { *(.debug_aranges) } + .debug_pubnames 0 : { *(.debug_pubnames) } + .debug_info 0 : { *(.debug_info) } + .debug_abbrev 0 : { *(.debug_abbrev) } + .debug_line 0 : { *(.debug_line) } + .debug_frame 0 : { *(.debug_frame) } + .debug_str 0 : { *(.debug_str) } + .debug_loc 0 : { *(.debug_loc) } + .debug_macinfo 0 : { *(.debug_macinfo) } + .debug_weaknames 0 : { *(.debug_weaknames) } + .debug_funcnames 0 : { *(.debug_funcnames) } + .debug_typenames 0 : { *(.debug_typenames) } + .debug_varnames 0 : { *(.debug_varnames) } +} diff --git a/examples/standalone/ppc_longjmp.S b/examples/standalone/ppc_longjmp.S new file mode 100644 index 0000000..5ca6f6f --- /dev/null +++ b/examples/standalone/ppc_longjmp.S @@ -0,0 +1,79 @@ +/* longjmp for PowerPC. + Copyright (C) 1995, 1996, 1997, 1999, 2000 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include + +# define JB_GPR1 0 /* Also known as the stack pointer */ +# define JB_GPR2 1 +# define JB_LR 2 /* The address we will return to */ +# define JB_GPRS 3 /* GPRs 14 through 31 are saved, 18 in total */ +# define JB_CR 21 /* Condition code registers. */ +# define JB_FPRS 22 /* FPRs 14 through 31 are saved, 18*2 words total */ +# define JB_SIZE (58*4) + +#define FP(x...) x +#define FP(x...) x + +.globl ppc_longjmp; + +ppc_longjmp: + lwz r1,(JB_GPR1*4)(r3) + lwz r2,(JB_GPR2*4)(r3) + lwz r0,(JB_LR*4)(r3) + lwz r14,((JB_GPRS+0)*4)(r3) +FP( lfd 14,((JB_FPRS+0*2)*4)(r3)) + lwz r15,((JB_GPRS+1)*4)(r3) +FP( lfd 15,((JB_FPRS+1*2)*4)(r3)) + lwz r16,((JB_GPRS+2)*4)(r3) +FP( lfd 16,((JB_FPRS+2*2)*4)(r3)) + lwz r17,((JB_GPRS+3)*4)(r3) +FP( lfd 17,((JB_FPRS+3*2)*4)(r3)) + lwz r18,((JB_GPRS+4)*4)(r3) +FP( lfd 18,((JB_FPRS+4*2)*4)(r3)) + lwz r19,((JB_GPRS+5)*4)(r3) +FP( lfd 19,((JB_FPRS+5*2)*4)(r3)) + lwz r20,((JB_GPRS+6)*4)(r3) +FP( lfd 20,((JB_FPRS+6*2)*4)(r3)) + mtlr r0 + lwz r21,((JB_GPRS+7)*4)(r3) +FP( lfd 21,((JB_FPRS+7*2)*4)(r3)) + lwz r22,((JB_GPRS+8)*4)(r3) +FP( lfd 22,((JB_FPRS+8*2)*4)(r3)) + lwz r0,(JB_CR*4)(r3) + lwz r23,((JB_GPRS+9)*4)(r3) +FP( lfd 23,((JB_FPRS+9*2)*4)(r3)) + lwz r24,((JB_GPRS+10)*4)(r3) +FP( lfd 24,((JB_FPRS+10*2)*4)(r3)) + lwz r25,((JB_GPRS+11)*4)(r3) +FP( lfd 25,((JB_FPRS+11*2)*4)(r3)) + mtcrf 0xFF,r0 + lwz r26,((JB_GPRS+12)*4)(r3) +FP( lfd 26,((JB_FPRS+12*2)*4)(r3)) + lwz r27,((JB_GPRS+13)*4)(r3) +FP( lfd 27,((JB_FPRS+13*2)*4)(r3)) + lwz r28,((JB_GPRS+14)*4)(r3) +FP( lfd 28,((JB_FPRS+14*2)*4)(r3)) + lwz r29,((JB_GPRS+15)*4)(r3) +FP( lfd 29,((JB_FPRS+15*2)*4)(r3)) + lwz r30,((JB_GPRS+16)*4)(r3) +FP( lfd 30,((JB_FPRS+16*2)*4)(r3)) + lwz r31,((JB_GPRS+17)*4)(r3) +FP( lfd 31,((JB_FPRS+17*2)*4)(r3)) + mr r3,r4 + blr diff --git a/examples/standalone/ppc_setjmp.S b/examples/standalone/ppc_setjmp.S new file mode 100644 index 0000000..421abfd --- /dev/null +++ b/examples/standalone/ppc_setjmp.S @@ -0,0 +1,83 @@ +/* setjmp for PowerPC. + Copyright (C) 1995, 1996, 1997, 1999, 2000 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include + +# define JB_GPR1 0 /* Also known as the stack pointer */ +# define JB_GPR2 1 +# define JB_LR 2 /* The address we will return to */ +# define JB_GPRS 3 /* GPRs 14 through 31 are saved, 18 in total */ +# define JB_CR 21 /* Condition code registers. */ +# define JB_FPRS 22 /* FPRs 14 through 31 are saved, 18*2 words total */ +# define JB_SIZE (58*4) + +#define FP(x...) x + +.globl setctxsp; +setctxsp: + mr r1, r3 + blr + +.globl ppc_setjmp; +ppc_setjmp: + stw r1,(JB_GPR1*4)(3) + mflr r0 + stw r2,(JB_GPR2*4)(3) + stw r14,((JB_GPRS+0)*4)(3) +FP( stfd 14,((JB_FPRS+0*2)*4)(3)) + stw r0,(JB_LR*4)(3) + stw r15,((JB_GPRS+1)*4)(3) +FP( stfd 15,((JB_FPRS+1*2)*4)(3)) + mfcr r0 + stw r16,((JB_GPRS+2)*4)(3) +FP( stfd 16,((JB_FPRS+2*2)*4)(3)) + stw r0,(JB_CR*4)(3) + stw r17,((JB_GPRS+3)*4)(3) +FP( stfd 17,((JB_FPRS+3*2)*4)(3)) + stw r18,((JB_GPRS+4)*4)(3) +FP( stfd 18,((JB_FPRS+4*2)*4)(3)) + stw r19,((JB_GPRS+5)*4)(3) +FP( stfd 19,((JB_FPRS+5*2)*4)(3)) + stw r20,((JB_GPRS+6)*4)(3) +FP( stfd 20,((JB_FPRS+6*2)*4)(3)) + stw r21,((JB_GPRS+7)*4)(3) +FP( stfd 21,((JB_FPRS+7*2)*4)(3)) + stw r22,((JB_GPRS+8)*4)(3) +FP( stfd 22,((JB_FPRS+8*2)*4)(3)) + stw r23,((JB_GPRS+9)*4)(3) +FP( stfd 23,((JB_FPRS+9*2)*4)(3)) + stw r24,((JB_GPRS+10)*4)(3) +FP( stfd 24,((JB_FPRS+10*2)*4)(3)) + stw r25,((JB_GPRS+11)*4)(3) +FP( stfd 25,((JB_FPRS+11*2)*4)(3)) + stw r26,((JB_GPRS+12)*4)(3) +FP( stfd 26,((JB_FPRS+12*2)*4)(3)) + stw r27,((JB_GPRS+13)*4)(3) +FP( stfd 27,((JB_FPRS+13*2)*4)(3)) + stw r28,((JB_GPRS+14)*4)(3) +FP( stfd 28,((JB_FPRS+14*2)*4)(3)) + stw r29,((JB_GPRS+15)*4)(3) +FP( stfd 29,((JB_FPRS+15*2)*4)(3)) + stw r30,((JB_GPRS+16)*4)(3) +FP( stfd 30,((JB_FPRS+16*2)*4)(3)) + stw r31,((JB_GPRS+17)*4)(3) +FP( stfd 31,((JB_FPRS+17*2)*4)(3)) + + li 3, 0 + blr diff --git a/examples/standalone/sched.c b/examples/standalone/sched.c new file mode 100644 index 0000000..b32766f --- /dev/null +++ b/examples/standalone/sched.c @@ -0,0 +1,369 @@ +/* + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include +#include + +/* + * Author: Arun Dharankar + * + * A very simple thread/schedular model: + * - only one master thread, and no parent child relation maintained + * - parent thread cannot be stopped or deleted + * - no permissions or credentials + * - no elaborate safety checks + * - cooperative multi threading + * - Simple round-robin scheduleing with no priorities + * - no metering/statistics collection + * + * Basic idea of implementing this is to allow more than one tests to + * execute "simultaneously". + * + * This may be modified such thread_yield may be called in syscalls, and + * timer interrupts. + */ + + +#define MAX_THREADS 8 + +#define CTX_SIZE 512 +#define STK_SIZE 8*1024 + +#define STATE_EMPTY 0 +#define STATE_RUNNABLE 1 +#define STATE_STOPPED 2 +#define STATE_TERMINATED 2 + +#define MASTER_THREAD 0 + +#define RC_FAILURE (-1) +#define RC_SUCCESS (0) + +typedef vu_char *jmp_ctx; +unsigned long setctxsp (vu_char *sp); +int ppc_setjmp(jmp_ctx env); +void ppc_longjmp(jmp_ctx env, int val); +#define setjmp ppc_setjmp +#define longjmp ppc_longjmp + +struct lthread { + int state; + int retval; + char stack[STK_SIZE]; + uchar context[CTX_SIZE]; + int (*func) (void *); + void *arg; +}; +static volatile struct lthread lthreads[MAX_THREADS]; +static volatile int current_tid = MASTER_THREAD; + + +static uchar dbg = 0; + +#define PDEBUG(fmt, args...) { \ + if(dbg != 0) { \ + printf("[%s %d %s]: ",__FILE__,__LINE__,__FUNCTION__);\ + printf(fmt, ##args); \ + printf("\n"); \ + } \ +} + +static int testthread (void *); +static void sched_init (void); +static int thread_create (int (*func) (void *), void *arg); +static int thread_start (int id); +static void thread_yield (void); +static int thread_delete (int id); +static int thread_join (int *ret); + +#if 0 /* not used yet */ +static int thread_stop (int id); +#endif /* not used yet */ + +/* An example of schedular test */ + +#define NUMTHREADS 7 +int sched (int ac, char *av[]) +{ + int i, j; + int tid[NUMTHREADS]; + int names[NUMTHREADS]; + + app_startup(av); + + sched_init (); + + for (i = 0; i < NUMTHREADS; i++) { + names[i] = i; + j = thread_create (testthread, (void *) &names[i]); + if (j == RC_FAILURE) + printf ("schedtest: Failed to create thread %d\n", i); + if (j > 0) { + printf ("schedtest: Created thread with id %d, name %d\n", + j, i); + tid[i] = j; + } + } + printf ("schedtest: Threads created\n"); + + printf ("sched_test: function=0x%08x\n", (unsigned)testthread); + for (i = 0; i < NUMTHREADS; i++) { + printf ("schedtest: Setting thread %d runnable\n", tid[i]); + thread_start (tid[i]); + thread_yield (); + } + printf ("schedtest: Started %d threads\n", NUMTHREADS); + + while (1) { + printf ("schedtest: Waiting for threads to complete\n"); + if (tstc () && getc () == 0x3) { + printf ("schedtest: Aborting threads...\n"); + for (i = 0; i < NUMTHREADS; i++) { + printf ("schedtest: Deleting thread %d\n", tid[i]); + thread_delete (tid[i]); + } + return RC_SUCCESS; + } + j = -1; + i = thread_join (&j); + if (i == RC_FAILURE) { + printf ("schedtest: No threads pending, " + "exiting schedular test\n"); + return RC_SUCCESS; + } + printf ("schedtest: thread is %d returned %d\n", i, j); + thread_yield (); + } + + return RC_SUCCESS; +} + +static int testthread (void *name) +{ + int i; + + printf ("testthread: Begin executing thread, myname %d, &i=0x%08x\n", + *(int *) name, (unsigned)&i); + + printf ("Thread %02d, i=%d\n", *(int *) name, i); + + for (i = 0; i < 0xffff * (*(int *) name + 1); i++) { + if (tstc () && getc () == 0x3) { + printf ("testthread: myname %d terminating.\n", + *(int *) name); + return *(int *) name + 1; + } + + if (i % 100 == 0) + thread_yield (); + } + + printf ("testthread: returning %d, i=0x%x\n", + *(int *) name + 1, i); + + return *(int *) name + 1; +} + + +static void sched_init (void) +{ + int i; + + for (i = MASTER_THREAD + 1; i < MAX_THREADS; i++) + lthreads[i].state = STATE_EMPTY; + + current_tid = MASTER_THREAD; + lthreads[current_tid].state = STATE_RUNNABLE; + PDEBUG ("sched_init: master context = 0x%08x", + (unsigned)lthreads[current_tid].context); + return; +} + +static void thread_yield (void) +{ + static int i; + + PDEBUG ("thread_yield: current tid=%d", current_tid); + +#define SWITCH(new) \ + if(lthreads[new].state == STATE_RUNNABLE) { \ + PDEBUG("thread_yield: %d match, ctx=0x%08x", \ + new, \ + (unsigned)lthreads[current_tid].context); \ + if(setjmp(lthreads[current_tid].context) == 0) { \ + current_tid = new; \ + PDEBUG("thread_yield: tid %d returns 0", \ + new); \ + longjmp(lthreads[new].context, 1); \ + } else { \ + PDEBUG("thread_yield: tid %d returns 1", \ + new); \ + return; \ + } \ + } + + for (i = current_tid + 1; i < MAX_THREADS; i++) { + SWITCH (i); + } + + if (current_tid != 0) { + for (i = 0; i <= current_tid; i++) { + SWITCH (i); + } + } + + PDEBUG ("thread_yield: returning from thread_yield"); + return; +} + +static int thread_create (int (*func) (void *), void *arg) +{ + int i; + + for (i = MASTER_THREAD + 1; i < MAX_THREADS; i++) { + if (lthreads[i].state == STATE_EMPTY) { + lthreads[i].state = STATE_STOPPED; + lthreads[i].func = func; + lthreads[i].arg = arg; + PDEBUG ("thread_create: returns new tid %d", i); + return i; + } + } + + PDEBUG ("thread_create: returns failure"); + return RC_FAILURE; +} + +static int thread_delete (int id) +{ + if (id <= MASTER_THREAD || id > MAX_THREADS) + return RC_FAILURE; + + if (current_tid == id) + return RC_FAILURE; + + lthreads[id].state = STATE_EMPTY; + return RC_SUCCESS; +} + +static void thread_launcher (void) +{ + PDEBUG ("thread_launcher: invoking func=0x%08x", + (unsigned)lthreads[current_tid].func); + + lthreads[current_tid].retval = + lthreads[current_tid].func (lthreads[current_tid].arg); + + PDEBUG ("thread_launcher: tid %d terminated", current_tid); + + lthreads[current_tid].state = STATE_TERMINATED; + thread_yield (); + printf ("thread_launcher: should NEVER get here!\n"); + + return; +} + +static int thread_start (int id) +{ + PDEBUG ("thread_start: id=%d", id); + if (id <= MASTER_THREAD || id > MAX_THREADS) { + return RC_FAILURE; + } + + if (lthreads[id].state != STATE_STOPPED) + return RC_FAILURE; + + if (setjmp (lthreads[current_tid].context) == 0) { + lthreads[id].state = STATE_RUNNABLE; + current_tid = id; + PDEBUG ("thread_start: to be stack=0%08x", + (unsigned)lthreads[id].stack); + setctxsp ((vu_char *)<hreads[id].stack[STK_SIZE]); + thread_launcher (); + } + + PDEBUG ("thread_start: Thread id=%d started, parent returns", id); + + return RC_SUCCESS; +} + +#if 0 /* not used so far */ +static int thread_stop (int id) +{ + if (id <= MASTER_THREAD || id >= MAX_THREADS) + return RC_FAILURE; + + if (current_tid == id) + return RC_FAILURE; + + lthreads[id].state = STATE_STOPPED; + return RC_SUCCESS; +} +#endif /* not used so far */ + +static int thread_join (int *ret) +{ + int i, j = 0; + + PDEBUG ("thread_join: *ret = %d", *ret); + + if (!(*ret == -1 || *ret > MASTER_THREAD || *ret < MAX_THREADS)) { + PDEBUG ("thread_join: invalid tid %d", *ret); + return RC_FAILURE; + } + + if (*ret == -1) { + PDEBUG ("Checking for tid = -1"); + while (1) { + /* PDEBUG("thread_join: start while-loopn"); */ + j = 0; + for (i = MASTER_THREAD + 1; i < MAX_THREADS; i++) { + if (lthreads[i].state == STATE_TERMINATED) { + *ret = lthreads[i].retval; + lthreads[i].state = STATE_EMPTY; + /* PDEBUG("thread_join: returning retval %d of tid %d", + ret, i); */ + return RC_SUCCESS; + } + + if (lthreads[i].state != STATE_EMPTY) { + PDEBUG ("thread_join: %d used slots tid %d state=%d", + j, i, lthreads[i].state); + j++; + } + } + if (j == 0) { + PDEBUG ("thread_join: all slots empty!"); + return RC_FAILURE; + } + /* PDEBUG("thread_join: yielding"); */ + thread_yield (); + /* PDEBUG("thread_join: back from yield"); */ + } + } + + if (lthreads[*ret].state == STATE_TERMINATED) { + i = *ret; + *ret = lthreads[*ret].retval; + lthreads[*ret].state = STATE_EMPTY; + PDEBUG ("thread_join: returing %d for tid %d", *ret, i); + return RC_SUCCESS; + } + + PDEBUG ("thread_join: thread %d is not terminated!", *ret); + return RC_FAILURE; +} diff --git a/examples/standalone/smc91111_eeprom.c b/examples/standalone/smc91111_eeprom.c new file mode 100644 index 0000000..39e5306 --- /dev/null +++ b/examples/standalone/smc91111_eeprom.c @@ -0,0 +1,395 @@ +/* + * (C) Copyright 2004 + * Robin Getz rgetz@blacfin.uclinux.org + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + * + * Heavily borrowed from the following peoples GPL'ed software: + * - Wolfgang Denk, DENX Software Engineering, wd@denx.de + * Das U-boot + * - Ladislav Michl ladis@linux-mips.org + * A rejected patch on the U-Boot mailing list + */ + +#include +#include +#include "../drivers/net/smc91111.h" + +#ifdef CONFIG_DRIVER_SMC91111 + +#ifndef SMC91111_EEPROM_INIT +# define SMC91111_EEPROM_INIT() +#endif + +#define SMC_BASE_ADDRESS CONFIG_SMC91111_BASE +#define EEPROM 0x1 +#define MAC 0x2 +#define UNKNOWN 0x4 + +void dump_reg (void); +void dump_eeprom (void); +int write_eeprom_reg (int, int); +void copy_from_eeprom (void); +void print_MAC (void); +int read_eeprom_reg (int); +void print_macaddr (void); + +int smc91111_eeprom (int argc, char *argv[]) +{ + int c, i, j, done, line, reg, value, start, what; + char input[50]; + + /* Print the ABI version */ + app_startup (argv); + if (XF_VERSION != (int) get_version ()) { + printf ("Expects ABI version %d\n", XF_VERSION); + printf ("Actual U-Boot ABI version %d\n", + (int) get_version ()); + printf ("Can't run\n\n"); + return (0); + } + + SMC91111_EEPROM_INIT(); + + if ((SMC_inw (BANK_SELECT) & 0xFF00) != 0x3300) { + printf ("Can't find SMSC91111\n"); + return (0); + } + + done = 0; + what = UNKNOWN; + printf ("\n"); + while (!done) { + /* print the prompt */ + printf ("SMC91111> "); + line = 0; + i = 0; + start = 1; + while (!line) { + /* Wait for a keystroke */ + while (!tstc ()); + + c = getc (); + /* Make Uppercase */ + if (c >= 'Z') + c -= ('a' - 'A'); + /* printf(" |%02x| ",c); */ + + switch (c) { + case '\r': /* Enter */ + case '\n': + input[i] = 0; + puts ("\r\n"); + line = 1; + break; + case '\0': /* nul */ + continue; + + case 0x03: /* ^C - break */ + input[0] = 0; + i = 0; + line = 1; + done = 1; + break; + + case 0x5F: + case 0x08: /* ^H - backspace */ + case 0x7F: /* DEL - backspace */ + if (i > 0) { + puts ("\b \b"); + i--; + } + break; + default: + if (start) { + if ((c == 'W') || (c == 'D') + || (c == 'M') || (c == 'C') + || (c == 'P')) { + putc (c); + input[i] = c; + if (i <= 45) + i++; + start = 0; + } + } else { + if ((c >= '0' && c <= '9') + || (c >= 'A' && c <= 'F') + || (c == 'E') || (c == 'M') + || (c == ' ')) { + putc (c); + input[i] = c; + if (i <= 45) + i++; + break; + } + } + break; + } + } + + for (; i < 49; i++) + input[i] = 0; + + switch (input[0]) { + case ('W'): + /* Line should be w reg value */ + i = 0; + reg = 0; + value = 0; + /* Skip to the next space or end) */ + while ((input[i] != ' ') && (input[i] != 0)) + i++; + + if (input[i] != 0) + i++; + + /* Are we writing to EEPROM or MAC */ + switch (input[i]) { + case ('E'): + what = EEPROM; + break; + case ('M'): + what = MAC; + break; + default: + what = UNKNOWN; + break; + } + + /* skip to the next space or end */ + while ((input[i] != ' ') && (input[i] != 0)) + i++; + if (input[i] != 0) + i++; + + /* Find register to write into */ + j = 0; + while ((input[i] != ' ') && (input[i] != 0)) { + j = input[i] - 0x30; + if (j >= 0xA) { + j -= 0x07; + } + reg = (reg * 0x10) + j; + i++; + } + + while ((input[i] != ' ') && (input[i] != 0)) + i++; + + if (input[i] != 0) + i++; + else + what = UNKNOWN; + + /* Get the value to write */ + j = 0; + while ((input[i] != ' ') && (input[i] != 0)) { + j = input[i] - 0x30; + if (j >= 0xA) { + j -= 0x07; + } + value = (value * 0x10) + j; + i++; + } + + switch (what) { + case 1: + printf ("Writing EEPROM register %02x with %04x\n", reg, value); + write_eeprom_reg (value, reg); + break; + case 2: + printf ("Writing MAC register bank %i, reg %02x with %04x\n", reg >> 4, reg & 0xE, value); + SMC_SELECT_BANK (reg >> 4); + SMC_outw (value, reg & 0xE); + break; + default: + printf ("Wrong\n"); + break; + } + break; + case ('D'): + dump_eeprom (); + break; + case ('M'): + dump_reg (); + break; + case ('C'): + copy_from_eeprom (); + break; + case ('P'): + print_macaddr (); + break; + default: + break; + } + + } + + return (0); +} + +void copy_from_eeprom (void) +{ + int i; + + SMC_SELECT_BANK (1); + SMC_outw ((SMC_inw (CTL_REG) & !CTL_EEPROM_SELECT) | CTL_RELOAD, + CTL_REG); + i = 100; + while ((SMC_inw (CTL_REG) & CTL_RELOAD) && --i) + udelay (100); + if (i == 0) { + printf ("Timeout Refreshing EEPROM registers\n"); + } else { + printf ("EEPROM contents copied to MAC\n"); + } + +} + +void print_macaddr (void) +{ + int i, j, k, mac[6]; + + printf ("Current MAC Address in SMSC91111 "); + SMC_SELECT_BANK (1); + for (i = 0; i < 5; i++) { + printf ("%02x:", SMC_inb (ADDR0_REG + i)); + } + + printf ("%02x\n", SMC_inb (ADDR0_REG + 5)); + + i = 0; + for (j = 0x20; j < 0x23; j++) { + k = read_eeprom_reg (j); + mac[i] = k & 0xFF; + i++; + mac[i] = k >> 8; + i++; + } + + printf ("Current MAC Address in EEPROM "); + for (i = 0; i < 5; i++) + printf ("%02x:", mac[i]); + printf ("%02x\n", mac[5]); + +} +void dump_eeprom (void) +{ + int j, k; + + printf ("IOS2-0 "); + for (j = 0; j < 8; j++) { + printf ("%03x ", j); + } + printf ("\n"); + + for (k = 0; k < 4; k++) { + if (k == 0) + printf ("CONFIG "); + if (k == 1) + printf ("BASE "); + if ((k == 2) || (k == 3)) + printf (" "); + for (j = 0; j < 0x20; j += 4) { + printf ("%02x:%04x ", j + k, read_eeprom_reg (j + k)); + } + printf ("\n"); + } + + for (j = 0x20; j < 0x40; j++) { + if ((j & 0x07) == 0) + printf ("\n"); + printf ("%02x:%04x ", j, read_eeprom_reg (j)); + } + printf ("\n"); + +} + +int read_eeprom_reg (int reg) +{ + int timeout; + + SMC_SELECT_BANK (2); + SMC_outw (reg, PTR_REG); + + SMC_SELECT_BANK (1); + SMC_outw (SMC_inw (CTL_REG) | CTL_EEPROM_SELECT | CTL_RELOAD, + CTL_REG); + timeout = 100; + while ((SMC_inw (CTL_REG) & CTL_RELOAD) && --timeout) + udelay (100); + if (timeout == 0) { + printf ("Timeout Reading EEPROM register %02x\n", reg); + return 0; + } + + return SMC_inw (GP_REG); + +} + +int write_eeprom_reg (int value, int reg) +{ + int timeout; + + SMC_SELECT_BANK (2); + SMC_outw (reg, PTR_REG); + + SMC_SELECT_BANK (1); + SMC_outw (value, GP_REG); + SMC_outw (SMC_inw (CTL_REG) | CTL_EEPROM_SELECT | CTL_STORE, CTL_REG); + timeout = 100; + while ((SMC_inw (CTL_REG) & CTL_STORE) && --timeout) + udelay (100); + if (timeout == 0) { + printf ("Timeout Writing EEPROM register %02x\n", reg); + return 0; + } + + return 1; + +} + +void dump_reg (void) +{ + int i, j; + + printf (" "); + for (j = 0; j < 4; j++) { + printf ("Bank%i ", j); + } + printf ("\n"); + for (i = 0; i < 0xF; i += 2) { + printf ("%02x ", i); + for (j = 0; j < 4; j++) { + SMC_SELECT_BANK (j); + printf ("%04x ", SMC_inw (i)); + } + printf ("\n"); + } +} + +#else + +int smc91111_eeprom (int argc, char *argv[]) +{ + printf("Not supported for this board\n"); + return 1; +} + +#endif diff --git a/examples/standalone/smc911x_eeprom.c b/examples/standalone/smc911x_eeprom.c new file mode 100644 index 0000000..bf22f0a --- /dev/null +++ b/examples/standalone/smc911x_eeprom.c @@ -0,0 +1,383 @@ +/* + * smc911x_eeprom.c - EEPROM interface to SMC911x parts. + * Only tested on SMSC9118 though ... + * + * Copyright 2004-2008 Analog Devices Inc. + * + * Licensed under the GPL-2 or later. + * + * Based on smc91111_eeprom.c which: + * Heavily borrowed from the following peoples GPL'ed software: + * - Wolfgang Denk, DENX Software Engineering, wd@denx.de + * Das U-boot + * - Ladislav Michl ladis@linux-mips.org + * A rejected patch on the U-Boot mailing list + */ + +#include +#include + +#ifdef CONFIG_DRIVER_SMC911X + +#include "../drivers/net/smc911x.h" + +/** + * smsc_ctrlc - detect press of CTRL+C (common ctrlc() isnt exported!?) + */ +static int smsc_ctrlc(void) +{ + return (tstc() && getc() == 0x03); +} + +/** + * usage - dump usage information + */ +static void usage(void) +{ + puts( + "MAC/EEPROM Commands:\n" + " P : Print the MAC addresses\n" + " D : Dump the EEPROM contents\n" + " M : Dump the MAC contents\n" + " C : Copy the MAC address from the EEPROM to the MAC\n" + " W : Write a register in the EEPROM or in the MAC\n" + " Q : Quit\n" + "\n" + "Some commands take arguments:\n" + " W \n" + " E: EEPROM M: MAC\n" + ); +} + +/** + * dump_regs - dump the MAC registers + * + * Registers 0x00 - 0x50 are FIFOs. The 0x50+ are the control registers + * and they're all 32bits long. 0xB8+ are reserved, so don't bother. + */ +static void dump_regs(void) +{ + u8 i, j = 0; + for (i = 0x50; i < 0xB8; i += sizeof(u32)) + printf("%02x: 0x%08x %c", i, + smc911x_reg_read(CONFIG_DRIVER_SMC911X_BASE + i), + (j++ % 2 ? '\n' : ' ')); +} + +/** + * do_eeprom_cmd - handle eeprom communication + */ +static int do_eeprom_cmd(int cmd, u8 reg) +{ + if (smc911x_reg_read(E2P_CMD) & E2P_CMD_EPC_BUSY) { + printf("eeprom_cmd: busy at start (E2P_CMD = 0x%08x)\n", + smc911x_reg_read(E2P_CMD)); + return -1; + } + + smc911x_reg_write(E2P_CMD, E2P_CMD_EPC_BUSY | cmd | reg); + + while (smc911x_reg_read(E2P_CMD) & E2P_CMD_EPC_BUSY) + if (smsc_ctrlc()) { + printf("eeprom_cmd: timeout (E2P_CMD = 0x%08x)\n", + smc911x_reg_read(E2P_CMD)); + return -1; + } + + return 0; +} + +/** + * read_eeprom_reg - read specified register in EEPROM + */ +static u8 read_eeprom_reg(u8 reg) +{ + int ret = do_eeprom_cmd(E2P_CMD_EPC_CMD_READ, reg); + return (ret ? : smc911x_reg_read(E2P_DATA)); +} + +/** + * write_eeprom_reg - write specified value into specified register in EEPROM + */ +static int write_eeprom_reg(u8 value, u8 reg) +{ + int ret; + + /* enable erasing/writing */ + ret = do_eeprom_cmd(E2P_CMD_EPC_CMD_EWEN, reg); + if (ret) + goto done; + + /* erase the eeprom reg */ + ret = do_eeprom_cmd(E2P_CMD_EPC_CMD_ERASE, reg); + if (ret) + goto done; + + /* write the eeprom reg */ + smc911x_reg_write(E2P_DATA, value); + ret = do_eeprom_cmd(E2P_CMD_EPC_CMD_WRITE, reg); + if (ret) + goto done; + + /* disable erasing/writing */ + ret = do_eeprom_cmd(E2P_CMD_EPC_CMD_EWDS, reg); + + done: + return ret; +} + +/** + * skip_space - find first non-whitespace in given pointer + */ +static char *skip_space(char *buf) +{ + while (buf[0] == ' ' || buf[0] == '\t') + ++buf; + return buf; +} + +/** + * write_stuff - handle writing of MAC registers / eeprom + */ +static void write_stuff(char *line) +{ + char dest; + char *endp; + u8 reg; + u32 value; + + /* Skip over the "W " part of the command */ + line = skip_space(line + 1); + + /* Figure out destination */ + switch (line[0]) { + case 'E': + case 'M': + dest = line[0]; + break; + default: + invalid_usage: + printf("ERROR: Invalid write usage\n"); + usage(); + return; + } + + /* Get the register to write */ + line = skip_space(line + 1); + reg = simple_strtoul(line, &endp, 16); + if (line == endp) + goto invalid_usage; + + /* Get the value to write */ + line = skip_space(endp); + value = simple_strtoul(line, &endp, 16); + if (line == endp) + goto invalid_usage; + + /* Check for trailing cruft */ + line = skip_space(endp); + if (line[0]) + goto invalid_usage; + + /* Finally, execute the command */ + if (dest == 'E') { + printf("Writing EEPROM register %02x with %02x\n", reg, value); + write_eeprom_reg(value, reg); + } else { + printf("Writing MAC register %02x with %08x\n", reg, value); + smc911x_reg_write(CONFIG_DRIVER_SMC911X_BASE + reg, value); + } +} + +/** + * copy_from_eeprom - copy MAC address in eeprom to address registers + */ +static void copy_from_eeprom(void) +{ + ulong addrl = + read_eeprom_reg(0x01) | + read_eeprom_reg(0x02) << 8 | + read_eeprom_reg(0x03) << 16 | + read_eeprom_reg(0x04) << 24; + ulong addrh = + read_eeprom_reg(0x05) | + read_eeprom_reg(0x06) << 8; + smc911x_set_mac_csr(ADDRL, addrl); + smc911x_set_mac_csr(ADDRH, addrh); + puts("EEPROM contents copied to MAC\n"); +} + +/** + * print_macaddr - print MAC address registers and MAC address in eeprom + */ +static void print_macaddr(void) +{ + puts("Current MAC Address in MAC: "); + ulong addrl = smc911x_get_mac_csr(ADDRL); + ulong addrh = smc911x_get_mac_csr(ADDRH); + printf("%02x:%02x:%02x:%02x:%02x:%02x\n", + (u8)(addrl), (u8)(addrl >> 8), (u8)(addrl >> 16), + (u8)(addrl >> 24), (u8)(addrh), (u8)(addrh >> 8)); + + puts("Current MAC Address in EEPROM: "); + int i; + for (i = 1; i < 6; ++i) + printf("%02x:", read_eeprom_reg(i)); + printf("%02x\n", read_eeprom_reg(i)); +} + +/** + * dump_eeprom - dump the whole content of the EEPROM + */ +static void dump_eeprom(void) +{ + int i; + puts("EEPROM:\n"); + for (i = 0; i < 7; ++i) + printf("%02x: 0x%02x\n", i, read_eeprom_reg(i)); +} + +/** + * smc911x_init - get the MAC/EEPROM up and ready for use + */ +static int smc911x_init(void) +{ + /* See if there is anything there */ + if (!smc911x_detect_chip()) + return 1; + + smc911x_reset(); + + /* Make sure we set EEDIO/EECLK to the EEPROM */ + if (smc911x_reg_read(GPIO_CFG) & GPIO_CFG_EEPR_EN) { + while (smc911x_reg_read(E2P_CMD) & E2P_CMD_EPC_BUSY) + if (smsc_ctrlc()) { + printf("init: timeout (E2P_CMD = 0x%08x)\n", + smc911x_reg_read(E2P_CMD)); + return 1; + } + smc911x_reg_write(GPIO_CFG, smc911x_reg_read(GPIO_CFG) & ~GPIO_CFG_EEPR_EN); + } + + return 0; +} + +/** + * getline - consume a line of input and handle some escape sequences + */ +static char *getline(void) +{ + static char buffer[100]; + char c; + size_t i; + + i = 0; + while (1) { + buffer[i] = '\0'; + while (!tstc()) + continue; + + c = getc(); + /* Convert to uppercase */ + if (c >= 'a' && c <= 'z') + c -= ('a' - 'A'); + + switch (c) { + case '\r': /* Enter/Return key */ + case '\n': + puts("\n"); + return buffer; + + case 0x03: /* ^C - break */ + return NULL; + + case 0x5F: + case 0x08: /* ^H - backspace */ + case 0x7F: /* DEL - backspace */ + if (i) { + puts("\b \b"); + i--; + } + break; + + default: + /* Ignore control characters */ + if (c < 0x20) + break; + /* Queue up all other characters */ + buffer[i++] = c; + printf("%c", c); + break; + } + } +} + +/** + * smc911x_eeprom - our application's main() function + */ +int smc911x_eeprom(int argc, char *argv[]) +{ + /* Print the ABI version */ + app_startup(argv); + if (XF_VERSION != get_version()) { + printf("Expects ABI version %d\n", XF_VERSION); + printf("Actual U-Boot ABI version %lu\n", get_version()); + printf("Can't run\n\n"); + return 1; + } + + /* Initialize the MAC/EEPROM somewhat */ + puts("\n"); + if (smc911x_init()) + return 1; + + /* Dump helpful usage information */ + puts("\n"); + usage(); + puts("\n"); + + while (1) { + char *line; + + /* Send the prompt and wait for a line */ + puts("eeprom> "); + line = getline(); + + /* Got a ctrl+c */ + if (!line) + return 0; + + /* Eat leading space */ + line = skip_space(line); + + /* Empty line, try again */ + if (!line[0]) + continue; + + /* Only accept 1 letter commands */ + if (line[0] && line[1] && line[1] != ' ' && line[1] != '\t') + goto unknown_cmd; + + /* Now parse the command */ + switch (line[0]) { + case 'W': write_stuff(line); break; + case 'D': dump_eeprom(); break; + case 'M': dump_regs(); break; + case 'C': copy_from_eeprom(); break; + case 'P': print_macaddr(); break; + unknown_cmd: + default: puts("ERROR: Unknown command!\n\n"); + case '?': + case 'H': usage(); break; + case 'Q': return 0; + } + } +} + +#else +int smc911x_eeprom(int argc, char *argv[]) +{ + puts("Not supported for this board\n"); + return 1; +} +#endif diff --git a/examples/standalone/sparc.lds b/examples/standalone/sparc.lds new file mode 100644 index 0000000..9733daa --- /dev/null +++ b/examples/standalone/sparc.lds @@ -0,0 +1,61 @@ +/* + * (C) Copyright 2003, Psyent Corporation + * Scott McNutt + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + + +OUTPUT_FORMAT("elf32-sparc", "elf32-sparc", "elf32-sparc") +OUTPUT_ARCH(sparc) +ENTRY(_start) + +SECTIONS +{ + .text : + { + *(.text) + } + __text_end = .; + + . = ALIGN(4); + .rodata : + { + *(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*))) + } + __rodata_end = .; + + . = ALIGN(4); + .data : + { + *(.data) + } + . = ALIGN(4); + __data_end = .; + + __bss_start = .; + . = ALIGN(4); + .bss : + { + *(.bss) + } + . = ALIGN(4); + __bss_end = .; + _end = .; +} diff --git a/examples/standalone/stubs.c b/examples/standalone/stubs.c new file mode 100644 index 0000000..a8cb954 --- /dev/null +++ b/examples/standalone/stubs.c @@ -0,0 +1,225 @@ +#include + +#ifndef GCC_VERSION +#define GCC_VERSION (__GNUC__ * 1000 + __GNUC_MINOR__) +#endif /* GCC_VERSION */ + +#if defined(CONFIG_I386) +/* + * x86 does not have a dedicated register to store the pointer to + * the global_data. Thus the jump table address is stored in a + * global variable, but such approach does not allow for execution + * from flash memory. The global_data address is passed as argv[-1] + * to the application program. + */ +static void **jt; +gd_t *global_data; + +#define EXPORT_FUNC(x) \ + asm volatile ( \ +" .globl " #x "\n" \ +#x ":\n" \ +" movl %0, %%eax\n" \ +" movl jt, %%ecx\n" \ +" jmp *(%%ecx, %%eax)\n" \ + : : "i"(XF_ ## x * sizeof(void *)) : "eax", "ecx"); +#elif defined(CONFIG_PPC) +/* + * r2 holds the pointer to the global_data, r11 is a call-clobbered + * register + */ +#define EXPORT_FUNC(x) \ + asm volatile ( \ +" .globl " #x "\n" \ +#x ":\n" \ +" lwz %%r11, %0(%%r2)\n" \ +" lwz %%r11, %1(%%r11)\n" \ +" mtctr %%r11\n" \ +" bctr\n" \ + : : "i"(offsetof(gd_t, jt)), "i"(XF_ ## x * sizeof(void *)) : "r11"); +#elif defined(CONFIG_ARM) +/* + * r8 holds the pointer to the global_data, ip is a call-clobbered + * register + */ +#define EXPORT_FUNC(x) \ + asm volatile ( \ +" .globl " #x "\n" \ +#x ":\n" \ +" ldr ip, [r8, %0]\n" \ +" ldr pc, [ip, %1]\n" \ + : : "i"(offsetof(gd_t, jt)), "i"(XF_ ## x * sizeof(void *)) : "ip"); +#elif defined(CONFIG_MIPS) +/* + * k0 ($26) holds the pointer to the global_data; t9 ($25) is a call- + * clobbered register that is also used to set gp ($26). Note that the + * jr instruction also executes the instruction immediately following + * it; however, GCC/mips generates an additional `nop' after each asm + * statement + */ +#define EXPORT_FUNC(x) \ + asm volatile ( \ +" .globl " #x "\n" \ +#x ":\n" \ +" lw $25, %0($26)\n" \ +" lw $25, %1($25)\n" \ +" jr $25\n" \ + : : "i"(offsetof(gd_t, jt)), "i"(XF_ ## x * sizeof(void *)) : "t9"); +#elif defined(CONFIG_NIOS) +/* + * %g7 holds the pointer to the global_data. %g0 is call clobbered. + */ +#define EXPORT_FUNC(x) \ + asm volatile ( \ +" .globl " #x "\n" \ +#x ":\n" \ +" pfx %%hi(%0)\n" \ +" movi %%g0, %%lo(%0)\n" \ +" add %%g0, %%g7\n" \ +" ld %%g0, [%%g0]\n" \ +" pfx %1\n" \ +" ld %%g0, [%%g0]\n" \ +" jmp %%g0\n" \ +" nop \n" \ + : : "i"(offsetof(gd_t, jt)), "i"(XF_ ## x) : "r0"); +#elif defined(CONFIG_NIOS2) +/* + * r15 holds the pointer to the global_data, r8 is call-clobbered + */ +#define EXPORT_FUNC(x) \ + asm volatile ( \ +" .globl " #x "\n" \ +#x ":\n" \ +" movhi r8, %%hi(%0)\n" \ +" ori r8, r0, %%lo(%0)\n" \ +" add r8, r8, r15\n" \ +" ldw r8, 0(r8)\n" \ +" ldw r8, %1(r8)\n" \ +" jmp r8\n" \ + : : "i"(offsetof(gd_t, jt)), "i"(XF_ ## x * sizeof(void *)) : "r15"); +#elif defined(CONFIG_M68K) +/* + * d7 holds the pointer to the global_data, a0 is a call-clobbered + * register + */ +#define EXPORT_FUNC(x) \ + asm volatile ( \ +" .globl " #x "\n" \ +#x ":\n" \ +" move.l %%d7, %%a0\n" \ +" adda.l %0, %%a0\n" \ +" move.l (%%a0), %%a0\n" \ +" adda.l %1, %%a0\n" \ +" move.l (%%a0), %%a0\n" \ +" jmp (%%a0)\n" \ + : : "i"(offsetof(gd_t, jt)), "i"(XF_ ## x * sizeof(void *)) : "a0"); +#elif defined(CONFIG_MICROBLAZE) +/* + * r31 holds the pointer to the global_data. r5 is a call-clobbered. + */ +#define EXPORT_FUNC(x) \ + asm volatile ( \ +" .globl " #x "\n" \ +#x ":\n" \ +" lwi r5, r31, %0\n" \ +" lwi r5, r5, %1\n" \ +" bra r5\n" \ + : : "i"(offsetof(gd_t, jt)), "i"(XF_ ## x * sizeof(void *)) : "r5"); +#elif defined(CONFIG_BLACKFIN) +/* + * P5 holds the pointer to the global_data, P0 is a call-clobbered + * register + */ +#define EXPORT_FUNC(x) \ + asm volatile ( \ +" .globl _" #x "\n_" \ +#x ":\n" \ +" P0 = [P5 + %0]\n" \ +" P0 = [P0 + %1]\n" \ +" JUMP (P0)\n" \ + : : "i"(offsetof(gd_t, jt)), "i"(XF_ ## x * sizeof(void *)) : "P0"); +#elif defined(CONFIG_AVR32) +/* + * r6 holds the pointer to the global_data. r8 is call clobbered. + */ +#define EXPORT_FUNC(x) \ + asm volatile( \ + " .globl\t" #x "\n" \ + #x ":\n" \ + " ld.w r8, r6[%0]\n" \ + " ld.w pc, r8[%1]\n" \ + : \ + : "i"(offsetof(gd_t, jt)), "i"(XF_ ##x) \ + : "r8"); +#elif defined(CONFIG_SH) +/* + * r13 holds the pointer to the global_data. r1 is a call clobbered. + */ +#define EXPORT_FUNC(x) \ + asm volatile ( \ + " .align 2\n" \ + " .globl " #x "\n" \ + #x ":\n" \ + " mov r13, r1\n" \ + " add %0, r1\n" \ + " mov.l @r1, r2\n" \ + " add %1, r2\n" \ + " mov.l @r2, r1\n" \ + " jmp @r1\n" \ + " nop\n" \ + " nop\n" \ + : : "i"(offsetof(gd_t, jt)), "i"(XF_ ## x * sizeof(void *)) : "r1", "r2"); +#elif defined(CONFIG_SPARC) +/* + * g7 holds the pointer to the global_data. g1 is call clobbered. + */ +#define EXPORT_FUNC(x) \ + asm volatile( \ +" .globl\t" #x "\n" \ +#x ":\n" \ +" set %0, %%g1\n" \ +" or %%g1, %%g7, %%g1\n" \ +" ld [%%g1], %%g1\n" \ +" ld [%%g1 + %1], %%g1\n" \ +" call %%g1\n" \ +" nop\n" \ + : : "i"(offsetof(gd_t, jt)), "i"(XF_ ## x) : "g1" ); + +#else +#error stubs definition missing for this architecture +#endif + +/* This function is necessary to prevent the compiler from + * generating prologue/epilogue, preparing stack frame etc. + * The stub functions are special, they do not use the stack + * frame passed to them, but pass it intact to the actual + * implementation. On the other hand, asm() statements with + * arguments can be used only inside the functions (gcc limitation) + */ +#if GCC_VERSION < 3004 +static +#endif /* GCC_VERSION */ +void __attribute__((unused)) dummy(void) +{ +#include <_exports.h> +} + +extern unsigned long __bss_start, _end; + +void app_startup(char **argv) +{ + unsigned char * cp = (unsigned char *) &__bss_start; + + /* Zero out BSS */ + while (cp < (unsigned char *)&_end) { + *cp++ = 0; + } + +#if defined(CONFIG_I386) + /* x86 does not have a dedicated register for passing global_data */ + global_data = (gd_t *)argv[-1]; + jt = global_data->jt; +#endif +} + +#undef EXPORT_FUNC diff --git a/examples/standalone/test_burst.c b/examples/standalone/test_burst.c new file mode 100644 index 0000000..7109c09 --- /dev/null +++ b/examples/standalone/test_burst.c @@ -0,0 +1,319 @@ +/* + * (C) Copyright 2005 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + * + * The test exercises SDRAM accesses in burst mode + */ + +#include +#include + +#include +#include +#include + +#include +#include + +#include "test_burst.h" + +/* 8 MB test region of physical RAM */ +#define TEST_PADDR 0x00800000 +/* The uncached virtual region */ +#define TEST_VADDR_NC 0x00800000 +/* The cached virtual region */ +#define TEST_VADDR_C 0x01000000 +/* When an error is detected, the address where the error has been found, + and also the current and the expected data will be written to + the following flash address +*/ +#define TEST_FLASH_ADDR 0x40100000 + +/* Define GPIO ports to signal start of burst transfers and errors */ +#ifdef CONFIG_LWMON +/* Use PD.8 to signal start of burst transfers */ +#define GPIO1_DAT (((volatile immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_pddat) +#define GPIO1_BIT 0x0080 +/* Configure PD.8 as general purpose output */ +#define GPIO1_INIT \ + ((volatile immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_pdpar &= ~GPIO1_BIT; \ + ((volatile immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_pddir |= GPIO1_BIT; +/* Use PD.9 to signal error */ +#define GPIO2_DAT (((volatile immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_pddat) +#define GPIO2_BIT 0x0040 +/* Configure PD.9 as general purpose output */ +#define GPIO2_INIT \ + ((volatile immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_pdpar &= ~GPIO2_BIT; \ + ((volatile immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_pddir |= GPIO2_BIT; +#endif /* CONFIG_LWMON */ + + +static void test_prepare (void); +static int test_burst_start (unsigned long size, unsigned long pattern); +static void test_map_8M (unsigned long paddr, unsigned long vaddr, int cached); +static int test_mmu_is_on(void); +static void test_desc(unsigned long size); +static void test_error(char * step, volatile void * addr, unsigned long val, unsigned long pattern); +static void signal_init(void); +static void signal_start(void); +static void signal_error(void); +static void test_usage(void); + +static unsigned long test_pattern [] = { + 0x00000000, + 0xffffffff, + 0x55555555, + 0xaaaaaaaa, +}; + + +int test_burst (int argc, char *argv[]) +{ + unsigned long size = CACHE_LINE_SIZE; + unsigned int pass = 0; + int res = 0; + int i, j; + + if (argc == 3) { + char * d; + for (size = 0, d = argv[1]; *d >= '0' && *d <= '9'; d++) { + size *= 10; + size += *d - '0'; + } + if (size == 0 || *d) { + test_usage(); + return 1; + } + for (d = argv[2]; *d >= '0' && *d <= '9'; d++) { + pass *= 10; + pass += *d - '0'; + } + if (*d) { + test_usage(); + return 1; + } + } else if (argc > 3) { + test_usage(); + return 1; + } + + size += (CACHE_LINE_SIZE - 1); + size &= ~(CACHE_LINE_SIZE - 1); + + if (!test_mmu_is_on()) { + test_prepare(); + } + + test_desc(size); + + for (j = 0; !pass || j < pass; j++) { + for (i = 0; i < sizeof(test_pattern) / sizeof(test_pattern[0]); + i++) { + res = test_burst_start(size, test_pattern[i]); + if (res != 0) { + goto Done; + } + } + + printf ("Iteration #%d passed\n", j + 1); + + if (tstc() && 0x03 == getc()) + break; + } +Done: + return res; +} + +static void test_prepare (void) +{ + printf ("\n"); + + caches_init(); + disable_interrupts(); + mmu_init(); + + printf ("Interrupts are disabled\n"); + printf ("I-Cache is ON\n"); + printf ("D-Cache is ON\n"); + printf ("MMU is ON\n"); + + printf ("\n"); + + test_map_8M (TEST_PADDR, TEST_VADDR_NC, 0); + test_map_8M (TEST_PADDR, TEST_VADDR_C, 1); + + test_map_8M (TEST_FLASH_ADDR & 0xFF800000, TEST_FLASH_ADDR & 0xFF800000, 0); + + /* Configure GPIO ports */ + signal_init(); +} + +static int test_burst_start (unsigned long size, unsigned long pattern) +{ + volatile unsigned long * vaddr_c = (unsigned long *)TEST_VADDR_C; + volatile unsigned long * vaddr_nc = (unsigned long *)TEST_VADDR_NC; + int i, n; + int res = 1; + + printf ("Test pattern %08lx ...", pattern); + + n = size / 4; + + for (i = 0; i < n; i ++) { + vaddr_c [i] = pattern; + } + signal_start(); + flush_dcache_range((unsigned long)vaddr_c, (unsigned long)(vaddr_c + n) - 1); + + for (i = 0; i < n; i ++) { + register unsigned long tmp = vaddr_nc [i]; + if (tmp != pattern) { + test_error("2a", vaddr_nc + i, tmp, pattern); + goto Done; + } + } + + for (i = 0; i < n; i ++) { + register unsigned long tmp = vaddr_c [i]; + if (tmp != pattern) { + test_error("2b", vaddr_c + i, tmp, pattern); + goto Done; + } + } + + for (i = 0; i < n; i ++) { + vaddr_nc [i] = pattern; + } + + for (i = 0; i < n; i ++) { + register unsigned long tmp = vaddr_nc [i]; + if (tmp != pattern) { + test_error("3a", vaddr_nc + i, tmp, pattern); + goto Done; + } + } + + signal_start(); + for (i = 0; i < n; i ++) { + register unsigned long tmp = vaddr_c [i]; + if (tmp != pattern) { + test_error("3b", vaddr_c + i, tmp, pattern); + goto Done; + } + } + + res = 0; +Done: + printf(" %s\n", res == 0 ? "OK" : ""); + + return res; +} + +static void test_map_8M (unsigned long paddr, unsigned long vaddr, int cached) +{ + mtspr (MD_EPN, (vaddr & 0xFFFFFC00) | MI_EVALID); + mtspr (MD_TWC, MI_PS8MEG | MI_SVALID); + mtspr (MD_RPN, (paddr & 0xFFFFF000) | MI_BOOTINIT | (cached ? 0 : 2)); + mtspr (MD_AP, MI_Kp); +} + +static int test_mmu_is_on(void) +{ + unsigned long msr; + + asm volatile("mfmsr %0" : "=r" (msr) :); + + return msr & MSR_DR; +} + +static void test_desc(unsigned long size) +{ + printf( + "The following tests will be conducted:\n" + "1) Map %ld-byte region of physical RAM at 0x%08x\n" + " into two virtual regions:\n" + " one cached at 0x%08x and\n" + " the the other uncached at 0x%08x.\n", + size, TEST_PADDR, TEST_VADDR_NC, TEST_VADDR_C); + + puts( + "2) Fill the cached region with a pattern, and flush the cache\n" + "2a) Check the uncached region to match the pattern\n" + "2b) Check the cached region to match the pattern\n" + "3) Fill the uncached region with a pattern\n" + "3a) Check the cached region to match the pattern\n" + "3b) Check the uncached region to match the pattern\n" + "2b) Change the patterns and go to step 2\n" + "\n" + ); +} + +static void test_error( + char * step, volatile void * addr, unsigned long val, unsigned long pattern) +{ + volatile unsigned long * p = (void *)TEST_FLASH_ADDR; + + signal_error(); + + p[0] = (unsigned long)addr; + p[1] = val; + p[2] = pattern; + + printf ("\nError at step %s, addr %08lx: read %08lx, pattern %08lx", + step, (unsigned long)addr, val, pattern); +} + +static void signal_init(void) +{ +#if defined(GPIO1_INIT) + GPIO1_INIT; +#endif +#if defined(GPIO2_INIT) + GPIO2_INIT; +#endif +} + +static void signal_start(void) +{ +#if defined(GPIO1_INIT) + if (GPIO1_DAT & GPIO1_BIT) { + GPIO1_DAT &= ~GPIO1_BIT; + } else { + GPIO1_DAT |= GPIO1_BIT; + } +#endif +} + +static void signal_error(void) +{ +#if defined(GPIO2_INIT) + if (GPIO2_DAT & GPIO2_BIT) { + GPIO2_DAT &= ~GPIO2_BIT; + } else { + GPIO2_DAT |= GPIO2_BIT; + } +#endif +} + +static void test_usage(void) +{ + printf("Usage: go 0x40004 [size] [count]\n"); +} diff --git a/examples/standalone/test_burst.h b/examples/standalone/test_burst.h new file mode 100644 index 0000000..f85928c --- /dev/null +++ b/examples/standalone/test_burst.h @@ -0,0 +1,38 @@ +/* + * (C) Copyright 2005 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#ifndef _TEST_BURST_H +#define _TEST_BURST_H + +/* Cache line size */ +#define CACHE_LINE_SIZE 16 +/* Binary logarithm of the cache line size */ +#define LG_CACHE_LINE_SIZE 4 + +#ifndef __ASSEMBLY__ +extern void mmu_init(void); +extern void caches_init(void); +extern void flush_dcache_range(unsigned long start, unsigned long stop); +#endif + +#endif /* _TEST_BURST_H */ diff --git a/examples/standalone/test_burst_lib.S b/examples/standalone/test_burst_lib.S new file mode 100644 index 0000000..aef4e32 --- /dev/null +++ b/examples/standalone/test_burst_lib.S @@ -0,0 +1,170 @@ +/* + * (C) Copyright 2005 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include + +#include +#include +#include +#include +#include "test_burst.h" + + .text +/* + * void mmu_init(void); + * + * This function turns the MMU on + * + * Three 8 MByte regions are mapped 1:1, uncached + * - SDRAM lower 8 MByte + * - SDRAM higher 8 MByte + * - IMMR + */ + .global mmu_init +mmu_init: + tlbia /* Invalidate all TLB entries */ + li r8, 0 + mtspr MI_CTR, r8 /* Set instruction control to zero */ + lis r8, MD_RESETVAL@h + mtspr MD_CTR, r8 /* Set data TLB control */ + + /* Now map the lower 8 Meg into the TLBs. For this quick hack, + * we can load the instruction and data TLB registers with the + * same values. + */ + li r8, MI_EVALID /* Create EPN for address 0 */ + mtspr MI_EPN, r8 + mtspr MD_EPN, r8 + li r8, MI_PS8MEG /* Set 8M byte page */ + ori r8, r8, MI_SVALID /* Make it valid */ + mtspr MI_TWC, r8 + mtspr MD_TWC, r8 + li r8, MI_BOOTINIT|0x2 /* Create RPN for address 0 */ + mtspr MI_RPN, r8 /* Store TLB entry */ + mtspr MD_RPN, r8 + lis r8, MI_Kp@h /* Set the protection mode */ + mtspr MI_AP, r8 + mtspr MD_AP, r8 + + /* Now map the higher 8 Meg into the TLBs. For this quick hack, + * we can load the instruction and data TLB registers with the + * same values. + */ + lwz r9,20(r2) /* gd->ram_size */ + addis r9,r9,-0x80 + + mr r8, r9 /* Higher 8 Meg in SDRAM */ + ori r8, r8, MI_EVALID /* Mark page valid */ + mtspr MI_EPN, r8 + mtspr MD_EPN, r8 + li r8, MI_PS8MEG /* Set 8M byte page */ + ori r8, r8, MI_SVALID /* Make it valid */ + mtspr MI_TWC, r8 + mtspr MD_TWC, r8 + mr r8, r9 + ori r8, r8, MI_BOOTINIT|0x2 + mtspr MI_RPN, r8 /* Store TLB entry */ + mtspr MD_RPN, r8 + lis r8, MI_Kp@h /* Set the protection mode */ + mtspr MI_AP, r8 + mtspr MD_AP, r8 + + /* Map another 8 MByte at the IMMR to get the processor + * internal registers (among other things). + */ + mfspr r9, 638 /* Get current IMMR */ + andis. r9, r9, 0xff80 /* Get 8Mbyte boundary */ + + mr r8, r9 /* Create vaddr for TLB */ + ori r8, r8, MD_EVALID /* Mark it valid */ + mtspr MD_EPN, r8 + li r8, MD_PS8MEG /* Set 8M byte page */ + ori r8, r8, MD_SVALID /* Make it valid */ + mtspr MD_TWC, r8 + mr r8, r9 /* Create paddr for TLB */ + ori r8, r8, MI_BOOTINIT|0x2 /* Inhibit cache -- Cort */ + mtspr MD_RPN, r8 + + /* We now have the lower and higher 8 Meg mapped into TLB entries, + * and the caches ready to work. + */ + mfmsr r0 + ori r0,r0,MSR_DR|MSR_IR + mtspr SRR1,r0 + mflr r0 + mtspr SRR0,r0 + SYNC + rfi /* enables MMU */ + +/* + * void caches_init(void); + */ + .globl caches_init +caches_init: + sync + + mfspr r3, IC_CST /* Clear error bits */ + mfspr r3, DC_CST + + lis r3, IDC_UNALL@h /* Unlock all */ + mtspr IC_CST, r3 + mtspr DC_CST, r3 + + lis r3, IDC_INVALL@h /* Invalidate all */ + mtspr IC_CST, r3 + mtspr DC_CST, r3 + + lis r3, IDC_ENABLE@h /* Enable all */ + mtspr IC_CST, r3 + mtspr DC_CST, r3 + + blr + +/* + * void flush_dcache_range(unsigned long start, unsigned long stop); + */ + .global flush_dcache_range +flush_dcache_range: + li r5,CACHE_LINE_SIZE-1 + andc r3,r3,r5 + subf r4,r3,r4 + add r4,r4,r5 + srwi. r4,r4,LG_CACHE_LINE_SIZE + beqlr + mtctr r4 + +1: dcbf 0,r3 + addi r3,r3,CACHE_LINE_SIZE + bdnz 1b + sync /* wait for dcbf's to get to ram */ + blr + +/* + * void disable_interrupts(void); + */ + .global disable_interrupts +disable_interrupts: + mfmsr r0 + rlwinm r0,r0,0,17,15 + mtmsr r0 + blr diff --git a/examples/standalone/timer.c b/examples/standalone/timer.c new file mode 100644 index 0000000..6628b21 --- /dev/null +++ b/examples/standalone/timer.c @@ -0,0 +1,349 @@ +/* + * (C) Copyright 2000 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include +#include +#include +#include + +DECLARE_GLOBAL_DATA_PTR; + +#undef DEBUG + +#define TIMER_PERIOD 1000000 /* 1 second clock */ + +static void timer_handler (void *arg); + + +/* Access functions for the Machine State Register */ +static __inline__ unsigned long get_msr(void) +{ + unsigned long msr; + + asm volatile("mfmsr %0" : "=r" (msr) :); + return msr; +} + +static __inline__ void set_msr(unsigned long msr) +{ + asm volatile("mtmsr %0" : : "r" (msr)); +} + +/* + * Definitions to access the CPM Timer registers + * See 8xx_immap.h for Internal Memory Map layout, + * and commproc.h for CPM Interrupt vectors (aka "IRQ"s) + */ + +typedef struct tid_8xx_cpmtimer_s { + int cpm_vec; /* CPM Interrupt Vector for this timer */ + ushort *tgcrp; /* Pointer to Timer Global Config Reg. */ + ushort *tmrp; /* Pointer to Timer Mode Register */ + ushort *trrp; /* Pointer to Timer Reference Register */ + ushort *tcrp; /* Pointer to Timer Capture Register */ + ushort *tcnp; /* Pointer to Timer Counter Register */ + ushort *terp; /* Pointer to Timer Event Register */ +} tid_8xx_cpmtimer_t; + +#ifndef CLOCKRATE +# define CLOCKRATE 64 +#endif + +#define CPMT_CLOCK_DIV 16 +#define CPMT_MAX_PRESCALER 256 +#define CPMT_MAX_REFERENCE 65535 /* max. unsigned short */ + +#define CPMT_MAX_TICKS (CPMT_MAX_REFERENCE * CPMT_MAX_PRESCALER) +#define CPMT_MAX_TICKS_WITH_DIV (CPMT_MAX_REFERENCE * CPMT_MAX_PRESCALER * CPMT_CLOCK_DIV) +#define CPMT_MAX_INTERVAL (CPMT_MAX_TICKS_WITH_DIV / CLOCKRATE) + +/* For now: always use max. prescaler value */ +#define CPMT_PRESCALER (CPMT_MAX_PRESCALER) + +/* CPM Timer Event Register Bits */ +#define CPMT_EVENT_CAP 0x0001 /* Capture Event */ +#define CPMT_EVENT_REF 0x0002 /* Reference Counter Event */ + +/* CPM Timer Global Config Register */ +#define CPMT_GCR_RST 0x0001 /* Reset Timer */ +#define CPMT_GCR_STP 0x0002 /* Stop Timer */ +#define CPMT_GCR_FRZ 0x0004 /* Freeze Timer */ +#define CPMT_GCR_GM_CAS 0x0008 /* Gate Mode / Cascade Timers */ +#define CPMT_GCR_MASK (CPMT_GCR_RST|CPMT_GCR_STP|CPMT_GCR_FRZ|CPMT_GCR_GM_CAS) + +/* CPM Timer Mode register */ +#define CPMT_MR_GE 0x0001 /* Gate Enable */ +#define CPMT_MR_ICLK_CASC 0x0000 /* Clock internally cascaded */ +#define CPMT_MR_ICLK_CLK 0x0002 /* Clock = system clock */ +#define CPMT_MR_ICLK_CLKDIV 0x0004 /* Clock = system clock / 16 */ +#define CPMT_MR_ICLK_TIN 0x0006 /* Clock = TINx signal */ +#define CPMT_MR_FRR 0x0008 /* Free Run / Restart */ +#define CPMT_MR_ORI 0x0010 /* Out. Reference Interrupt En. */ +#define CPMT_MR_OM 0x0020 /* Output Mode */ +#define CPMT_MR_CE_DIS 0x0000 /* Capture/Interrupt disabled */ +#define CPMT_MR_CE_RISE 0x0040 /* Capt./Interr. on rising TIN */ +#define CPMT_MR_CE_FALL 0x0080 /* Capt./Interr. on falling TIN */ +#define CPMT_MR_CE_ANY 0x00C0 /* Capt./Interr. on any TIN edge*/ + + +/* + * which CPM timer to use - index starts at 0 (= timer 1) + */ +#define TID_TIMER_ID 0 /* use CPM timer 1 */ + +void setPeriod (tid_8xx_cpmtimer_t *hwp, ulong interval); + +static char *usage = "\n[q, b, e, ?] "; + +int timer (int argc, char *argv[]) +{ + cpmtimer8xx_t *cpmtimerp; /* Pointer to the CPM Timer structure */ + tid_8xx_cpmtimer_t hw; + tid_8xx_cpmtimer_t *hwp = &hw; + int c; + int running; + + app_startup(argv); + + /* Pointer to CPM Timer structure */ + cpmtimerp = &((immap_t *) gd->bd->bi_immr_base)->im_cpmtimer; + + printf ("TIMERS=0x%x\n", (unsigned) cpmtimerp); + + /* Initialize pointers depending on which timer we use */ + switch (TID_TIMER_ID) { + case 0: + hwp->tmrp = &(cpmtimerp->cpmt_tmr1); + hwp->trrp = &(cpmtimerp->cpmt_trr1); + hwp->tcrp = &(cpmtimerp->cpmt_tcr1); + hwp->tcnp = &(cpmtimerp->cpmt_tcn1); + hwp->terp = &(cpmtimerp->cpmt_ter1); + hwp->cpm_vec = CPMVEC_TIMER1; + break; + case 1: + hwp->tmrp = &(cpmtimerp->cpmt_tmr2); + hwp->trrp = &(cpmtimerp->cpmt_trr2); + hwp->tcrp = &(cpmtimerp->cpmt_tcr2); + hwp->tcnp = &(cpmtimerp->cpmt_tcn2); + hwp->terp = &(cpmtimerp->cpmt_ter2); + hwp->cpm_vec = CPMVEC_TIMER2; + break; + case 2: + hwp->tmrp = &(cpmtimerp->cpmt_tmr3); + hwp->trrp = &(cpmtimerp->cpmt_trr3); + hwp->tcrp = &(cpmtimerp->cpmt_tcr3); + hwp->tcnp = &(cpmtimerp->cpmt_tcn3); + hwp->terp = &(cpmtimerp->cpmt_ter3); + hwp->cpm_vec = CPMVEC_TIMER3; + break; + case 3: + hwp->tmrp = &(cpmtimerp->cpmt_tmr4); + hwp->trrp = &(cpmtimerp->cpmt_trr4); + hwp->tcrp = &(cpmtimerp->cpmt_tcr4); + hwp->tcnp = &(cpmtimerp->cpmt_tcn4); + hwp->terp = &(cpmtimerp->cpmt_ter4); + hwp->cpm_vec = CPMVEC_TIMER4; + break; + } + + hwp->tgcrp = &cpmtimerp->cpmt_tgcr; + + printf ("Using timer %d\n" + "tgcr @ 0x%x, tmr @ 0x%x, trr @ 0x%x," + " tcr @ 0x%x, tcn @ 0x%x, ter @ 0x%x\n", + TID_TIMER_ID + 1, + (unsigned) hwp->tgcrp, + (unsigned) hwp->tmrp, + (unsigned) hwp->trrp, + (unsigned) hwp->tcrp, + (unsigned) hwp->tcnp, + (unsigned) hwp->terp + ); + + /* reset timer */ + *hwp->tgcrp &= ~(CPMT_GCR_MASK << TID_TIMER_ID); + + /* clear all events */ + *hwp->terp = (CPMT_EVENT_CAP | CPMT_EVENT_REF); + + printf (usage); + running = 0; + while ((c = getc()) != 'q') { + if (c == 'b') { + + setPeriod (hwp, TIMER_PERIOD); /* Set period and start ticking */ + + /* Install interrupt handler (enable timer in CIMR) */ + install_hdlr (hwp->cpm_vec, timer_handler, hwp); + + printf ("Enabling timer\n"); + + /* enable timer */ + *hwp->tgcrp |= (CPMT_GCR_RST << TID_TIMER_ID); + running = 1; + +#ifdef DEBUG + printf ("tgcr=0x%x, tmr=0x%x, trr=0x%x," + " tcr=0x%x, tcn=0x%x, ter=0x%x\n", + *hwp->tgcrp, *hwp->tmrp, *hwp->trrp, + *hwp->tcrp, *hwp->tcnp, *hwp->terp + ); +#endif + } else if (c == 'e') { + + printf ("Stopping timer\n"); + + *hwp->tgcrp &= ~(CPMT_GCR_MASK << TID_TIMER_ID); + running = 0; + +#ifdef DEBUG + printf ("tgcr=0x%x, tmr=0x%x, trr=0x%x," + " tcr=0x%x, tcn=0x%x, ter=0x%x\n", + *hwp->tgcrp, *hwp->tmrp, *hwp->trrp, + *hwp->tcrp, *hwp->tcnp, *hwp->terp + ); +#endif + /* Uninstall interrupt handler */ + free_hdlr (hwp->cpm_vec); + + } else if (c == '?') { +#ifdef DEBUG + cpic8xx_t *cpm_icp = &((immap_t *) gd->bd->bi_immr_base)->im_cpic; + sysconf8xx_t *siup = &((immap_t *) gd->bd->bi_immr_base)->im_siu_conf; +#endif + + printf ("\ntgcr=0x%x, tmr=0x%x, trr=0x%x," + " tcr=0x%x, tcn=0x%x, ter=0x%x\n", + *hwp->tgcrp, *hwp->tmrp, *hwp->trrp, + *hwp->tcrp, *hwp->tcnp, *hwp->terp + ); +#ifdef DEBUG + printf ("SIUMCR=0x%08lx, SYPCR=0x%08lx," + " SIMASK=0x%08lx, SIPEND=0x%08lx\n", + siup->sc_siumcr, + siup->sc_sypcr, + siup->sc_simask, + siup->sc_sipend + ); + + printf ("CIMR=0x%08lx, CICR=0x%08lx, CIPR=0x%08lx\n", + cpm_icp->cpic_cimr, + cpm_icp->cpic_cicr, + cpm_icp->cpic_cipr + ); +#endif + } else { + printf ("\nEnter: q - quit, b - start timer, e - stop timer, ? - get status\n"); + } + printf (usage); + } + if (running) { + printf ("Stopping timer\n"); + *hwp->tgcrp &= ~(CPMT_GCR_MASK << TID_TIMER_ID); + free_hdlr (hwp->cpm_vec); + } + + return (0); +} + + +/* Set period in microseconds and start. + * Truncate to maximum period if more than this is requested - but warn about it. + */ + +void setPeriod (tid_8xx_cpmtimer_t *hwp, ulong interval) +{ + unsigned short prescaler; + unsigned long ticks; + + printf ("Set interval %ld us\n", interval); + + /* Warn if requesting longer period than possible */ + if (interval > CPMT_MAX_INTERVAL) { + printf ("Truncate interval %ld to maximum (%d)\n", + interval, CPMT_MAX_INTERVAL); + interval = CPMT_MAX_INTERVAL; + } + /* + * Check if we want to use clock divider: + * Since the reference counter can be incremented only in integer steps, + * we try to keep it as big as possible to allow the resulting period to be + * as precise as possible. + */ + /* prescaler, enable interrupt, restart after ref count is reached */ + prescaler = (ushort) ((CPMT_PRESCALER - 1) << 8) | + CPMT_MR_ORI | + CPMT_MR_FRR; + + ticks = ((ulong) CLOCKRATE * interval); + + if (ticks > CPMT_MAX_TICKS) { + ticks /= CPMT_CLOCK_DIV; + prescaler |= CPMT_MR_ICLK_CLKDIV; /* use system clock divided by 16 */ + } else { + prescaler |= CPMT_MR_ICLK_CLK; /* use system clock without divider */ + } + +#ifdef DEBUG + printf ("clock/%d, prescale factor %d, reference %ld, ticks %ld\n", + (ticks > CPMT_MAX_TICKS) ? CPMT_CLOCK_DIV : 1, + CPMT_PRESCALER, + (ticks / CPMT_PRESCALER), + ticks + ); +#endif + + /* set prescaler register */ + *hwp->tmrp = prescaler; + + /* clear timer counter */ + *hwp->tcnp = 0; + + /* set reference register */ + *hwp->trrp = (unsigned short) (ticks / CPMT_PRESCALER); + +#ifdef DEBUG + printf ("tgcr=0x%x, tmr=0x%x, trr=0x%x," + " tcr=0x%x, tcn=0x%x, ter=0x%x\n", + *hwp->tgcrp, *hwp->tmrp, *hwp->trrp, + *hwp->tcrp, *hwp->tcnp, *hwp->terp + ); +#endif +} + +/* + * Handler for CPMVEC_TIMER1 interrupt + */ +static +void timer_handler (void *arg) +{ + tid_8xx_cpmtimer_t *hwp = (tid_8xx_cpmtimer_t *)arg; + + /* printf ("** TER1=%04x ** ", *hwp->terp); */ + + /* just for demonstration */ + printf ("."); + + /* clear all possible events: Ref. and Cap. */ + *hwp->terp = (CPMT_EVENT_CAP | CPMT_EVENT_REF); +} diff --git a/examples/standalone/x86-testapp.c b/examples/standalone/x86-testapp.c new file mode 100644 index 0000000..e8603d9 --- /dev/null +++ b/examples/standalone/x86-testapp.c @@ -0,0 +1,87 @@ +#include +#include +#include + +void *func[8], **pfunc; + +typedef struct xxx xxx_t; +struct xxx { + int dummy; + void **pfunc; +} q; + +#define XF_strcpy 3 +#define XF_printf 4 + +#define LABEL(x) \ +asm volatile ( \ + +#if defined(__i386__) +#define EXPORT_FUNC(x) \ +asm volatile ( \ +" .globl mon_" #x "\n" \ +"mon_" #x ":\n" \ +" movl %0, %%eax\n" \ +" movl pfunc, %%ecx\n" \ +" jmp *(%%ecx,%%eax)\n" \ + : : "i"(XF_ ## x * sizeof(void *)) : "eax", "ecx"); +#elif defined(__powerpc__) +#define EXPORT_FUNC(x) \ +asm volatile ( \ +" .globl mon_" #x "\n" \ +"mon_" #x ":\n" \ +" lwz %%r11, %0(%%r2)\n" \ +" lwz %%r11, %1(%%r11)\n" \ +" mtctr %%r11\n" \ +" bctr\n" \ + : : "i"(offsetof(xxx_t, pfunc)), "i"(XF_ ## x * sizeof(void *)) : "r11", "r2"); +#elif defined(__arm__) +#define EXPORT_FUNC(x) \ +asm volatile ( \ +" .globl mon_" #x "\n" \ +"mon_" #x ":\n" \ +" ldr ip, [r8, %0]\n" \ +" ldr pc, [ip, %1]\n" \ + : : "i"(offsetof(xxx_t, pfunc)), "i"(XF_ ## x * sizeof(void *)) : "ip"); +#elif defined(__mips__) +#define EXPORT_FUNC(x) \ +asm volatile ( \ +" .globl mon_" #x "\n" \ +"mon_" #x ":\n" \ +" lw $25, %0($26)\n" \ +" lw $25, %1($25)\n" \ +" jr $25\n" \ + : : "i"(offsetof(xxx_t, pfunc)), "i"(XF_ ## x * sizeof(void *)) : "t9"); +#else +#error [No stub code for this arch] +#endif + +void dummy(void) +{ +EXPORT_FUNC(printf) +EXPORT_FUNC(strcpy) +} + +int main(void) +{ +#if defined(__i386__) + xxx_t *pq; +#elif defined(__powerpc__) + register volatile xxx_t *pq asm("r2"); +#elif defined(__arm__) + register volatile xxx_t *pq asm("r8"); +#elif defined(__mips__) + register volatile xxx_t *pq asm("k0"); +#endif + char buf[32]; + + func[XF_strcpy] = strcpy; + func[XF_printf] = printf; + pq = &q; + pq->pfunc = pfunc = func; + + mon_strcpy(buf, "test"); + mon_printf("hi %s %d z\n", buf, 444); + + return 0; +} diff --git a/examples/stubs.c b/examples/stubs.c deleted file mode 100644 index a8cb954..0000000 --- a/examples/stubs.c +++ /dev/null @@ -1,225 +0,0 @@ -#include - -#ifndef GCC_VERSION -#define GCC_VERSION (__GNUC__ * 1000 + __GNUC_MINOR__) -#endif /* GCC_VERSION */ - -#if defined(CONFIG_I386) -/* - * x86 does not have a dedicated register to store the pointer to - * the global_data. Thus the jump table address is stored in a - * global variable, but such approach does not allow for execution - * from flash memory. The global_data address is passed as argv[-1] - * to the application program. - */ -static void **jt; -gd_t *global_data; - -#define EXPORT_FUNC(x) \ - asm volatile ( \ -" .globl " #x "\n" \ -#x ":\n" \ -" movl %0, %%eax\n" \ -" movl jt, %%ecx\n" \ -" jmp *(%%ecx, %%eax)\n" \ - : : "i"(XF_ ## x * sizeof(void *)) : "eax", "ecx"); -#elif defined(CONFIG_PPC) -/* - * r2 holds the pointer to the global_data, r11 is a call-clobbered - * register - */ -#define EXPORT_FUNC(x) \ - asm volatile ( \ -" .globl " #x "\n" \ -#x ":\n" \ -" lwz %%r11, %0(%%r2)\n" \ -" lwz %%r11, %1(%%r11)\n" \ -" mtctr %%r11\n" \ -" bctr\n" \ - : : "i"(offsetof(gd_t, jt)), "i"(XF_ ## x * sizeof(void *)) : "r11"); -#elif defined(CONFIG_ARM) -/* - * r8 holds the pointer to the global_data, ip is a call-clobbered - * register - */ -#define EXPORT_FUNC(x) \ - asm volatile ( \ -" .globl " #x "\n" \ -#x ":\n" \ -" ldr ip, [r8, %0]\n" \ -" ldr pc, [ip, %1]\n" \ - : : "i"(offsetof(gd_t, jt)), "i"(XF_ ## x * sizeof(void *)) : "ip"); -#elif defined(CONFIG_MIPS) -/* - * k0 ($26) holds the pointer to the global_data; t9 ($25) is a call- - * clobbered register that is also used to set gp ($26). Note that the - * jr instruction also executes the instruction immediately following - * it; however, GCC/mips generates an additional `nop' after each asm - * statement - */ -#define EXPORT_FUNC(x) \ - asm volatile ( \ -" .globl " #x "\n" \ -#x ":\n" \ -" lw $25, %0($26)\n" \ -" lw $25, %1($25)\n" \ -" jr $25\n" \ - : : "i"(offsetof(gd_t, jt)), "i"(XF_ ## x * sizeof(void *)) : "t9"); -#elif defined(CONFIG_NIOS) -/* - * %g7 holds the pointer to the global_data. %g0 is call clobbered. - */ -#define EXPORT_FUNC(x) \ - asm volatile ( \ -" .globl " #x "\n" \ -#x ":\n" \ -" pfx %%hi(%0)\n" \ -" movi %%g0, %%lo(%0)\n" \ -" add %%g0, %%g7\n" \ -" ld %%g0, [%%g0]\n" \ -" pfx %1\n" \ -" ld %%g0, [%%g0]\n" \ -" jmp %%g0\n" \ -" nop \n" \ - : : "i"(offsetof(gd_t, jt)), "i"(XF_ ## x) : "r0"); -#elif defined(CONFIG_NIOS2) -/* - * r15 holds the pointer to the global_data, r8 is call-clobbered - */ -#define EXPORT_FUNC(x) \ - asm volatile ( \ -" .globl " #x "\n" \ -#x ":\n" \ -" movhi r8, %%hi(%0)\n" \ -" ori r8, r0, %%lo(%0)\n" \ -" add r8, r8, r15\n" \ -" ldw r8, 0(r8)\n" \ -" ldw r8, %1(r8)\n" \ -" jmp r8\n" \ - : : "i"(offsetof(gd_t, jt)), "i"(XF_ ## x * sizeof(void *)) : "r15"); -#elif defined(CONFIG_M68K) -/* - * d7 holds the pointer to the global_data, a0 is a call-clobbered - * register - */ -#define EXPORT_FUNC(x) \ - asm volatile ( \ -" .globl " #x "\n" \ -#x ":\n" \ -" move.l %%d7, %%a0\n" \ -" adda.l %0, %%a0\n" \ -" move.l (%%a0), %%a0\n" \ -" adda.l %1, %%a0\n" \ -" move.l (%%a0), %%a0\n" \ -" jmp (%%a0)\n" \ - : : "i"(offsetof(gd_t, jt)), "i"(XF_ ## x * sizeof(void *)) : "a0"); -#elif defined(CONFIG_MICROBLAZE) -/* - * r31 holds the pointer to the global_data. r5 is a call-clobbered. - */ -#define EXPORT_FUNC(x) \ - asm volatile ( \ -" .globl " #x "\n" \ -#x ":\n" \ -" lwi r5, r31, %0\n" \ -" lwi r5, r5, %1\n" \ -" bra r5\n" \ - : : "i"(offsetof(gd_t, jt)), "i"(XF_ ## x * sizeof(void *)) : "r5"); -#elif defined(CONFIG_BLACKFIN) -/* - * P5 holds the pointer to the global_data, P0 is a call-clobbered - * register - */ -#define EXPORT_FUNC(x) \ - asm volatile ( \ -" .globl _" #x "\n_" \ -#x ":\n" \ -" P0 = [P5 + %0]\n" \ -" P0 = [P0 + %1]\n" \ -" JUMP (P0)\n" \ - : : "i"(offsetof(gd_t, jt)), "i"(XF_ ## x * sizeof(void *)) : "P0"); -#elif defined(CONFIG_AVR32) -/* - * r6 holds the pointer to the global_data. r8 is call clobbered. - */ -#define EXPORT_FUNC(x) \ - asm volatile( \ - " .globl\t" #x "\n" \ - #x ":\n" \ - " ld.w r8, r6[%0]\n" \ - " ld.w pc, r8[%1]\n" \ - : \ - : "i"(offsetof(gd_t, jt)), "i"(XF_ ##x) \ - : "r8"); -#elif defined(CONFIG_SH) -/* - * r13 holds the pointer to the global_data. r1 is a call clobbered. - */ -#define EXPORT_FUNC(x) \ - asm volatile ( \ - " .align 2\n" \ - " .globl " #x "\n" \ - #x ":\n" \ - " mov r13, r1\n" \ - " add %0, r1\n" \ - " mov.l @r1, r2\n" \ - " add %1, r2\n" \ - " mov.l @r2, r1\n" \ - " jmp @r1\n" \ - " nop\n" \ - " nop\n" \ - : : "i"(offsetof(gd_t, jt)), "i"(XF_ ## x * sizeof(void *)) : "r1", "r2"); -#elif defined(CONFIG_SPARC) -/* - * g7 holds the pointer to the global_data. g1 is call clobbered. - */ -#define EXPORT_FUNC(x) \ - asm volatile( \ -" .globl\t" #x "\n" \ -#x ":\n" \ -" set %0, %%g1\n" \ -" or %%g1, %%g7, %%g1\n" \ -" ld [%%g1], %%g1\n" \ -" ld [%%g1 + %1], %%g1\n" \ -" call %%g1\n" \ -" nop\n" \ - : : "i"(offsetof(gd_t, jt)), "i"(XF_ ## x) : "g1" ); - -#else -#error stubs definition missing for this architecture -#endif - -/* This function is necessary to prevent the compiler from - * generating prologue/epilogue, preparing stack frame etc. - * The stub functions are special, they do not use the stack - * frame passed to them, but pass it intact to the actual - * implementation. On the other hand, asm() statements with - * arguments can be used only inside the functions (gcc limitation) - */ -#if GCC_VERSION < 3004 -static -#endif /* GCC_VERSION */ -void __attribute__((unused)) dummy(void) -{ -#include <_exports.h> -} - -extern unsigned long __bss_start, _end; - -void app_startup(char **argv) -{ - unsigned char * cp = (unsigned char *) &__bss_start; - - /* Zero out BSS */ - while (cp < (unsigned char *)&_end) { - *cp++ = 0; - } - -#if defined(CONFIG_I386) - /* x86 does not have a dedicated register for passing global_data */ - global_data = (gd_t *)argv[-1]; - jt = global_data->jt; -#endif -} - -#undef EXPORT_FUNC diff --git a/examples/test_burst.c b/examples/test_burst.c deleted file mode 100644 index 7109c09..0000000 --- a/examples/test_burst.c +++ /dev/null @@ -1,319 +0,0 @@ -/* - * (C) Copyright 2005 - * Wolfgang Denk, DENX Software Engineering, wd@denx.de. - * - * See file CREDITS for list of people who contributed to this - * project. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - * - * The test exercises SDRAM accesses in burst mode - */ - -#include -#include - -#include -#include -#include - -#include -#include - -#include "test_burst.h" - -/* 8 MB test region of physical RAM */ -#define TEST_PADDR 0x00800000 -/* The uncached virtual region */ -#define TEST_VADDR_NC 0x00800000 -/* The cached virtual region */ -#define TEST_VADDR_C 0x01000000 -/* When an error is detected, the address where the error has been found, - and also the current and the expected data will be written to - the following flash address -*/ -#define TEST_FLASH_ADDR 0x40100000 - -/* Define GPIO ports to signal start of burst transfers and errors */ -#ifdef CONFIG_LWMON -/* Use PD.8 to signal start of burst transfers */ -#define GPIO1_DAT (((volatile immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_pddat) -#define GPIO1_BIT 0x0080 -/* Configure PD.8 as general purpose output */ -#define GPIO1_INIT \ - ((volatile immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_pdpar &= ~GPIO1_BIT; \ - ((volatile immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_pddir |= GPIO1_BIT; -/* Use PD.9 to signal error */ -#define GPIO2_DAT (((volatile immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_pddat) -#define GPIO2_BIT 0x0040 -/* Configure PD.9 as general purpose output */ -#define GPIO2_INIT \ - ((volatile immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_pdpar &= ~GPIO2_BIT; \ - ((volatile immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_pddir |= GPIO2_BIT; -#endif /* CONFIG_LWMON */ - - -static void test_prepare (void); -static int test_burst_start (unsigned long size, unsigned long pattern); -static void test_map_8M (unsigned long paddr, unsigned long vaddr, int cached); -static int test_mmu_is_on(void); -static void test_desc(unsigned long size); -static void test_error(char * step, volatile void * addr, unsigned long val, unsigned long pattern); -static void signal_init(void); -static void signal_start(void); -static void signal_error(void); -static void test_usage(void); - -static unsigned long test_pattern [] = { - 0x00000000, - 0xffffffff, - 0x55555555, - 0xaaaaaaaa, -}; - - -int test_burst (int argc, char *argv[]) -{ - unsigned long size = CACHE_LINE_SIZE; - unsigned int pass = 0; - int res = 0; - int i, j; - - if (argc == 3) { - char * d; - for (size = 0, d = argv[1]; *d >= '0' && *d <= '9'; d++) { - size *= 10; - size += *d - '0'; - } - if (size == 0 || *d) { - test_usage(); - return 1; - } - for (d = argv[2]; *d >= '0' && *d <= '9'; d++) { - pass *= 10; - pass += *d - '0'; - } - if (*d) { - test_usage(); - return 1; - } - } else if (argc > 3) { - test_usage(); - return 1; - } - - size += (CACHE_LINE_SIZE - 1); - size &= ~(CACHE_LINE_SIZE - 1); - - if (!test_mmu_is_on()) { - test_prepare(); - } - - test_desc(size); - - for (j = 0; !pass || j < pass; j++) { - for (i = 0; i < sizeof(test_pattern) / sizeof(test_pattern[0]); - i++) { - res = test_burst_start(size, test_pattern[i]); - if (res != 0) { - goto Done; - } - } - - printf ("Iteration #%d passed\n", j + 1); - - if (tstc() && 0x03 == getc()) - break; - } -Done: - return res; -} - -static void test_prepare (void) -{ - printf ("\n"); - - caches_init(); - disable_interrupts(); - mmu_init(); - - printf ("Interrupts are disabled\n"); - printf ("I-Cache is ON\n"); - printf ("D-Cache is ON\n"); - printf ("MMU is ON\n"); - - printf ("\n"); - - test_map_8M (TEST_PADDR, TEST_VADDR_NC, 0); - test_map_8M (TEST_PADDR, TEST_VADDR_C, 1); - - test_map_8M (TEST_FLASH_ADDR & 0xFF800000, TEST_FLASH_ADDR & 0xFF800000, 0); - - /* Configure GPIO ports */ - signal_init(); -} - -static int test_burst_start (unsigned long size, unsigned long pattern) -{ - volatile unsigned long * vaddr_c = (unsigned long *)TEST_VADDR_C; - volatile unsigned long * vaddr_nc = (unsigned long *)TEST_VADDR_NC; - int i, n; - int res = 1; - - printf ("Test pattern %08lx ...", pattern); - - n = size / 4; - - for (i = 0; i < n; i ++) { - vaddr_c [i] = pattern; - } - signal_start(); - flush_dcache_range((unsigned long)vaddr_c, (unsigned long)(vaddr_c + n) - 1); - - for (i = 0; i < n; i ++) { - register unsigned long tmp = vaddr_nc [i]; - if (tmp != pattern) { - test_error("2a", vaddr_nc + i, tmp, pattern); - goto Done; - } - } - - for (i = 0; i < n; i ++) { - register unsigned long tmp = vaddr_c [i]; - if (tmp != pattern) { - test_error("2b", vaddr_c + i, tmp, pattern); - goto Done; - } - } - - for (i = 0; i < n; i ++) { - vaddr_nc [i] = pattern; - } - - for (i = 0; i < n; i ++) { - register unsigned long tmp = vaddr_nc [i]; - if (tmp != pattern) { - test_error("3a", vaddr_nc + i, tmp, pattern); - goto Done; - } - } - - signal_start(); - for (i = 0; i < n; i ++) { - register unsigned long tmp = vaddr_c [i]; - if (tmp != pattern) { - test_error("3b", vaddr_c + i, tmp, pattern); - goto Done; - } - } - - res = 0; -Done: - printf(" %s\n", res == 0 ? "OK" : ""); - - return res; -} - -static void test_map_8M (unsigned long paddr, unsigned long vaddr, int cached) -{ - mtspr (MD_EPN, (vaddr & 0xFFFFFC00) | MI_EVALID); - mtspr (MD_TWC, MI_PS8MEG | MI_SVALID); - mtspr (MD_RPN, (paddr & 0xFFFFF000) | MI_BOOTINIT | (cached ? 0 : 2)); - mtspr (MD_AP, MI_Kp); -} - -static int test_mmu_is_on(void) -{ - unsigned long msr; - - asm volatile("mfmsr %0" : "=r" (msr) :); - - return msr & MSR_DR; -} - -static void test_desc(unsigned long size) -{ - printf( - "The following tests will be conducted:\n" - "1) Map %ld-byte region of physical RAM at 0x%08x\n" - " into two virtual regions:\n" - " one cached at 0x%08x and\n" - " the the other uncached at 0x%08x.\n", - size, TEST_PADDR, TEST_VADDR_NC, TEST_VADDR_C); - - puts( - "2) Fill the cached region with a pattern, and flush the cache\n" - "2a) Check the uncached region to match the pattern\n" - "2b) Check the cached region to match the pattern\n" - "3) Fill the uncached region with a pattern\n" - "3a) Check the cached region to match the pattern\n" - "3b) Check the uncached region to match the pattern\n" - "2b) Change the patterns and go to step 2\n" - "\n" - ); -} - -static void test_error( - char * step, volatile void * addr, unsigned long val, unsigned long pattern) -{ - volatile unsigned long * p = (void *)TEST_FLASH_ADDR; - - signal_error(); - - p[0] = (unsigned long)addr; - p[1] = val; - p[2] = pattern; - - printf ("\nError at step %s, addr %08lx: read %08lx, pattern %08lx", - step, (unsigned long)addr, val, pattern); -} - -static void signal_init(void) -{ -#if defined(GPIO1_INIT) - GPIO1_INIT; -#endif -#if defined(GPIO2_INIT) - GPIO2_INIT; -#endif -} - -static void signal_start(void) -{ -#if defined(GPIO1_INIT) - if (GPIO1_DAT & GPIO1_BIT) { - GPIO1_DAT &= ~GPIO1_BIT; - } else { - GPIO1_DAT |= GPIO1_BIT; - } -#endif -} - -static void signal_error(void) -{ -#if defined(GPIO2_INIT) - if (GPIO2_DAT & GPIO2_BIT) { - GPIO2_DAT &= ~GPIO2_BIT; - } else { - GPIO2_DAT |= GPIO2_BIT; - } -#endif -} - -static void test_usage(void) -{ - printf("Usage: go 0x40004 [size] [count]\n"); -} diff --git a/examples/test_burst.h b/examples/test_burst.h deleted file mode 100644 index f85928c..0000000 --- a/examples/test_burst.h +++ /dev/null @@ -1,38 +0,0 @@ -/* - * (C) Copyright 2005 - * Wolfgang Denk, DENX Software Engineering, wd@denx.de. - * - * See file CREDITS for list of people who contributed to this - * project. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - */ - -#ifndef _TEST_BURST_H -#define _TEST_BURST_H - -/* Cache line size */ -#define CACHE_LINE_SIZE 16 -/* Binary logarithm of the cache line size */ -#define LG_CACHE_LINE_SIZE 4 - -#ifndef __ASSEMBLY__ -extern void mmu_init(void); -extern void caches_init(void); -extern void flush_dcache_range(unsigned long start, unsigned long stop); -#endif - -#endif /* _TEST_BURST_H */ diff --git a/examples/test_burst_lib.S b/examples/test_burst_lib.S deleted file mode 100644 index aef4e32..0000000 --- a/examples/test_burst_lib.S +++ /dev/null @@ -1,170 +0,0 @@ -/* - * (C) Copyright 2005 - * Wolfgang Denk, DENX Software Engineering, wd@denx.de. - * - * See file CREDITS for list of people who contributed to this - * project. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - */ - -#include - -#include -#include -#include -#include -#include "test_burst.h" - - .text -/* - * void mmu_init(void); - * - * This function turns the MMU on - * - * Three 8 MByte regions are mapped 1:1, uncached - * - SDRAM lower 8 MByte - * - SDRAM higher 8 MByte - * - IMMR - */ - .global mmu_init -mmu_init: - tlbia /* Invalidate all TLB entries */ - li r8, 0 - mtspr MI_CTR, r8 /* Set instruction control to zero */ - lis r8, MD_RESETVAL@h - mtspr MD_CTR, r8 /* Set data TLB control */ - - /* Now map the lower 8 Meg into the TLBs. For this quick hack, - * we can load the instruction and data TLB registers with the - * same values. - */ - li r8, MI_EVALID /* Create EPN for address 0 */ - mtspr MI_EPN, r8 - mtspr MD_EPN, r8 - li r8, MI_PS8MEG /* Set 8M byte page */ - ori r8, r8, MI_SVALID /* Make it valid */ - mtspr MI_TWC, r8 - mtspr MD_TWC, r8 - li r8, MI_BOOTINIT|0x2 /* Create RPN for address 0 */ - mtspr MI_RPN, r8 /* Store TLB entry */ - mtspr MD_RPN, r8 - lis r8, MI_Kp@h /* Set the protection mode */ - mtspr MI_AP, r8 - mtspr MD_AP, r8 - - /* Now map the higher 8 Meg into the TLBs. For this quick hack, - * we can load the instruction and data TLB registers with the - * same values. - */ - lwz r9,20(r2) /* gd->ram_size */ - addis r9,r9,-0x80 - - mr r8, r9 /* Higher 8 Meg in SDRAM */ - ori r8, r8, MI_EVALID /* Mark page valid */ - mtspr MI_EPN, r8 - mtspr MD_EPN, r8 - li r8, MI_PS8MEG /* Set 8M byte page */ - ori r8, r8, MI_SVALID /* Make it valid */ - mtspr MI_TWC, r8 - mtspr MD_TWC, r8 - mr r8, r9 - ori r8, r8, MI_BOOTINIT|0x2 - mtspr MI_RPN, r8 /* Store TLB entry */ - mtspr MD_RPN, r8 - lis r8, MI_Kp@h /* Set the protection mode */ - mtspr MI_AP, r8 - mtspr MD_AP, r8 - - /* Map another 8 MByte at the IMMR to get the processor - * internal registers (among other things). - */ - mfspr r9, 638 /* Get current IMMR */ - andis. r9, r9, 0xff80 /* Get 8Mbyte boundary */ - - mr r8, r9 /* Create vaddr for TLB */ - ori r8, r8, MD_EVALID /* Mark it valid */ - mtspr MD_EPN, r8 - li r8, MD_PS8MEG /* Set 8M byte page */ - ori r8, r8, MD_SVALID /* Make it valid */ - mtspr MD_TWC, r8 - mr r8, r9 /* Create paddr for TLB */ - ori r8, r8, MI_BOOTINIT|0x2 /* Inhibit cache -- Cort */ - mtspr MD_RPN, r8 - - /* We now have the lower and higher 8 Meg mapped into TLB entries, - * and the caches ready to work. - */ - mfmsr r0 - ori r0,r0,MSR_DR|MSR_IR - mtspr SRR1,r0 - mflr r0 - mtspr SRR0,r0 - SYNC - rfi /* enables MMU */ - -/* - * void caches_init(void); - */ - .globl caches_init -caches_init: - sync - - mfspr r3, IC_CST /* Clear error bits */ - mfspr r3, DC_CST - - lis r3, IDC_UNALL@h /* Unlock all */ - mtspr IC_CST, r3 - mtspr DC_CST, r3 - - lis r3, IDC_INVALL@h /* Invalidate all */ - mtspr IC_CST, r3 - mtspr DC_CST, r3 - - lis r3, IDC_ENABLE@h /* Enable all */ - mtspr IC_CST, r3 - mtspr DC_CST, r3 - - blr - -/* - * void flush_dcache_range(unsigned long start, unsigned long stop); - */ - .global flush_dcache_range -flush_dcache_range: - li r5,CACHE_LINE_SIZE-1 - andc r3,r3,r5 - subf r4,r3,r4 - add r4,r4,r5 - srwi. r4,r4,LG_CACHE_LINE_SIZE - beqlr - mtctr r4 - -1: dcbf 0,r3 - addi r3,r3,CACHE_LINE_SIZE - bdnz 1b - sync /* wait for dcbf's to get to ram */ - blr - -/* - * void disable_interrupts(void); - */ - .global disable_interrupts -disable_interrupts: - mfmsr r0 - rlwinm r0,r0,0,17,15 - mtmsr r0 - blr diff --git a/examples/timer.c b/examples/timer.c deleted file mode 100644 index 6628b21..0000000 --- a/examples/timer.c +++ /dev/null @@ -1,349 +0,0 @@ -/* - * (C) Copyright 2000 - * Wolfgang Denk, DENX Software Engineering, wd@denx.de. - * - * See file CREDITS for list of people who contributed to this - * project. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - */ - -#include -#include -#include -#include - -DECLARE_GLOBAL_DATA_PTR; - -#undef DEBUG - -#define TIMER_PERIOD 1000000 /* 1 second clock */ - -static void timer_handler (void *arg); - - -/* Access functions for the Machine State Register */ -static __inline__ unsigned long get_msr(void) -{ - unsigned long msr; - - asm volatile("mfmsr %0" : "=r" (msr) :); - return msr; -} - -static __inline__ void set_msr(unsigned long msr) -{ - asm volatile("mtmsr %0" : : "r" (msr)); -} - -/* - * Definitions to access the CPM Timer registers - * See 8xx_immap.h for Internal Memory Map layout, - * and commproc.h for CPM Interrupt vectors (aka "IRQ"s) - */ - -typedef struct tid_8xx_cpmtimer_s { - int cpm_vec; /* CPM Interrupt Vector for this timer */ - ushort *tgcrp; /* Pointer to Timer Global Config Reg. */ - ushort *tmrp; /* Pointer to Timer Mode Register */ - ushort *trrp; /* Pointer to Timer Reference Register */ - ushort *tcrp; /* Pointer to Timer Capture Register */ - ushort *tcnp; /* Pointer to Timer Counter Register */ - ushort *terp; /* Pointer to Timer Event Register */ -} tid_8xx_cpmtimer_t; - -#ifndef CLOCKRATE -# define CLOCKRATE 64 -#endif - -#define CPMT_CLOCK_DIV 16 -#define CPMT_MAX_PRESCALER 256 -#define CPMT_MAX_REFERENCE 65535 /* max. unsigned short */ - -#define CPMT_MAX_TICKS (CPMT_MAX_REFERENCE * CPMT_MAX_PRESCALER) -#define CPMT_MAX_TICKS_WITH_DIV (CPMT_MAX_REFERENCE * CPMT_MAX_PRESCALER * CPMT_CLOCK_DIV) -#define CPMT_MAX_INTERVAL (CPMT_MAX_TICKS_WITH_DIV / CLOCKRATE) - -/* For now: always use max. prescaler value */ -#define CPMT_PRESCALER (CPMT_MAX_PRESCALER) - -/* CPM Timer Event Register Bits */ -#define CPMT_EVENT_CAP 0x0001 /* Capture Event */ -#define CPMT_EVENT_REF 0x0002 /* Reference Counter Event */ - -/* CPM Timer Global Config Register */ -#define CPMT_GCR_RST 0x0001 /* Reset Timer */ -#define CPMT_GCR_STP 0x0002 /* Stop Timer */ -#define CPMT_GCR_FRZ 0x0004 /* Freeze Timer */ -#define CPMT_GCR_GM_CAS 0x0008 /* Gate Mode / Cascade Timers */ -#define CPMT_GCR_MASK (CPMT_GCR_RST|CPMT_GCR_STP|CPMT_GCR_FRZ|CPMT_GCR_GM_CAS) - -/* CPM Timer Mode register */ -#define CPMT_MR_GE 0x0001 /* Gate Enable */ -#define CPMT_MR_ICLK_CASC 0x0000 /* Clock internally cascaded */ -#define CPMT_MR_ICLK_CLK 0x0002 /* Clock = system clock */ -#define CPMT_MR_ICLK_CLKDIV 0x0004 /* Clock = system clock / 16 */ -#define CPMT_MR_ICLK_TIN 0x0006 /* Clock = TINx signal */ -#define CPMT_MR_FRR 0x0008 /* Free Run / Restart */ -#define CPMT_MR_ORI 0x0010 /* Out. Reference Interrupt En. */ -#define CPMT_MR_OM 0x0020 /* Output Mode */ -#define CPMT_MR_CE_DIS 0x0000 /* Capture/Interrupt disabled */ -#define CPMT_MR_CE_RISE 0x0040 /* Capt./Interr. on rising TIN */ -#define CPMT_MR_CE_FALL 0x0080 /* Capt./Interr. on falling TIN */ -#define CPMT_MR_CE_ANY 0x00C0 /* Capt./Interr. on any TIN edge*/ - - -/* - * which CPM timer to use - index starts at 0 (= timer 1) - */ -#define TID_TIMER_ID 0 /* use CPM timer 1 */ - -void setPeriod (tid_8xx_cpmtimer_t *hwp, ulong interval); - -static char *usage = "\n[q, b, e, ?] "; - -int timer (int argc, char *argv[]) -{ - cpmtimer8xx_t *cpmtimerp; /* Pointer to the CPM Timer structure */ - tid_8xx_cpmtimer_t hw; - tid_8xx_cpmtimer_t *hwp = &hw; - int c; - int running; - - app_startup(argv); - - /* Pointer to CPM Timer structure */ - cpmtimerp = &((immap_t *) gd->bd->bi_immr_base)->im_cpmtimer; - - printf ("TIMERS=0x%x\n", (unsigned) cpmtimerp); - - /* Initialize pointers depending on which timer we use */ - switch (TID_TIMER_ID) { - case 0: - hwp->tmrp = &(cpmtimerp->cpmt_tmr1); - hwp->trrp = &(cpmtimerp->cpmt_trr1); - hwp->tcrp = &(cpmtimerp->cpmt_tcr1); - hwp->tcnp = &(cpmtimerp->cpmt_tcn1); - hwp->terp = &(cpmtimerp->cpmt_ter1); - hwp->cpm_vec = CPMVEC_TIMER1; - break; - case 1: - hwp->tmrp = &(cpmtimerp->cpmt_tmr2); - hwp->trrp = &(cpmtimerp->cpmt_trr2); - hwp->tcrp = &(cpmtimerp->cpmt_tcr2); - hwp->tcnp = &(cpmtimerp->cpmt_tcn2); - hwp->terp = &(cpmtimerp->cpmt_ter2); - hwp->cpm_vec = CPMVEC_TIMER2; - break; - case 2: - hwp->tmrp = &(cpmtimerp->cpmt_tmr3); - hwp->trrp = &(cpmtimerp->cpmt_trr3); - hwp->tcrp = &(cpmtimerp->cpmt_tcr3); - hwp->tcnp = &(cpmtimerp->cpmt_tcn3); - hwp->terp = &(cpmtimerp->cpmt_ter3); - hwp->cpm_vec = CPMVEC_TIMER3; - break; - case 3: - hwp->tmrp = &(cpmtimerp->cpmt_tmr4); - hwp->trrp = &(cpmtimerp->cpmt_trr4); - hwp->tcrp = &(cpmtimerp->cpmt_tcr4); - hwp->tcnp = &(cpmtimerp->cpmt_tcn4); - hwp->terp = &(cpmtimerp->cpmt_ter4); - hwp->cpm_vec = CPMVEC_TIMER4; - break; - } - - hwp->tgcrp = &cpmtimerp->cpmt_tgcr; - - printf ("Using timer %d\n" - "tgcr @ 0x%x, tmr @ 0x%x, trr @ 0x%x," - " tcr @ 0x%x, tcn @ 0x%x, ter @ 0x%x\n", - TID_TIMER_ID + 1, - (unsigned) hwp->tgcrp, - (unsigned) hwp->tmrp, - (unsigned) hwp->trrp, - (unsigned) hwp->tcrp, - (unsigned) hwp->tcnp, - (unsigned) hwp->terp - ); - - /* reset timer */ - *hwp->tgcrp &= ~(CPMT_GCR_MASK << TID_TIMER_ID); - - /* clear all events */ - *hwp->terp = (CPMT_EVENT_CAP | CPMT_EVENT_REF); - - printf (usage); - running = 0; - while ((c = getc()) != 'q') { - if (c == 'b') { - - setPeriod (hwp, TIMER_PERIOD); /* Set period and start ticking */ - - /* Install interrupt handler (enable timer in CIMR) */ - install_hdlr (hwp->cpm_vec, timer_handler, hwp); - - printf ("Enabling timer\n"); - - /* enable timer */ - *hwp->tgcrp |= (CPMT_GCR_RST << TID_TIMER_ID); - running = 1; - -#ifdef DEBUG - printf ("tgcr=0x%x, tmr=0x%x, trr=0x%x," - " tcr=0x%x, tcn=0x%x, ter=0x%x\n", - *hwp->tgcrp, *hwp->tmrp, *hwp->trrp, - *hwp->tcrp, *hwp->tcnp, *hwp->terp - ); -#endif - } else if (c == 'e') { - - printf ("Stopping timer\n"); - - *hwp->tgcrp &= ~(CPMT_GCR_MASK << TID_TIMER_ID); - running = 0; - -#ifdef DEBUG - printf ("tgcr=0x%x, tmr=0x%x, trr=0x%x," - " tcr=0x%x, tcn=0x%x, ter=0x%x\n", - *hwp->tgcrp, *hwp->tmrp, *hwp->trrp, - *hwp->tcrp, *hwp->tcnp, *hwp->terp - ); -#endif - /* Uninstall interrupt handler */ - free_hdlr (hwp->cpm_vec); - - } else if (c == '?') { -#ifdef DEBUG - cpic8xx_t *cpm_icp = &((immap_t *) gd->bd->bi_immr_base)->im_cpic; - sysconf8xx_t *siup = &((immap_t *) gd->bd->bi_immr_base)->im_siu_conf; -#endif - - printf ("\ntgcr=0x%x, tmr=0x%x, trr=0x%x," - " tcr=0x%x, tcn=0x%x, ter=0x%x\n", - *hwp->tgcrp, *hwp->tmrp, *hwp->trrp, - *hwp->tcrp, *hwp->tcnp, *hwp->terp - ); -#ifdef DEBUG - printf ("SIUMCR=0x%08lx, SYPCR=0x%08lx," - " SIMASK=0x%08lx, SIPEND=0x%08lx\n", - siup->sc_siumcr, - siup->sc_sypcr, - siup->sc_simask, - siup->sc_sipend - ); - - printf ("CIMR=0x%08lx, CICR=0x%08lx, CIPR=0x%08lx\n", - cpm_icp->cpic_cimr, - cpm_icp->cpic_cicr, - cpm_icp->cpic_cipr - ); -#endif - } else { - printf ("\nEnter: q - quit, b - start timer, e - stop timer, ? - get status\n"); - } - printf (usage); - } - if (running) { - printf ("Stopping timer\n"); - *hwp->tgcrp &= ~(CPMT_GCR_MASK << TID_TIMER_ID); - free_hdlr (hwp->cpm_vec); - } - - return (0); -} - - -/* Set period in microseconds and start. - * Truncate to maximum period if more than this is requested - but warn about it. - */ - -void setPeriod (tid_8xx_cpmtimer_t *hwp, ulong interval) -{ - unsigned short prescaler; - unsigned long ticks; - - printf ("Set interval %ld us\n", interval); - - /* Warn if requesting longer period than possible */ - if (interval > CPMT_MAX_INTERVAL) { - printf ("Truncate interval %ld to maximum (%d)\n", - interval, CPMT_MAX_INTERVAL); - interval = CPMT_MAX_INTERVAL; - } - /* - * Check if we want to use clock divider: - * Since the reference counter can be incremented only in integer steps, - * we try to keep it as big as possible to allow the resulting period to be - * as precise as possible. - */ - /* prescaler, enable interrupt, restart after ref count is reached */ - prescaler = (ushort) ((CPMT_PRESCALER - 1) << 8) | - CPMT_MR_ORI | - CPMT_MR_FRR; - - ticks = ((ulong) CLOCKRATE * interval); - - if (ticks > CPMT_MAX_TICKS) { - ticks /= CPMT_CLOCK_DIV; - prescaler |= CPMT_MR_ICLK_CLKDIV; /* use system clock divided by 16 */ - } else { - prescaler |= CPMT_MR_ICLK_CLK; /* use system clock without divider */ - } - -#ifdef DEBUG - printf ("clock/%d, prescale factor %d, reference %ld, ticks %ld\n", - (ticks > CPMT_MAX_TICKS) ? CPMT_CLOCK_DIV : 1, - CPMT_PRESCALER, - (ticks / CPMT_PRESCALER), - ticks - ); -#endif - - /* set prescaler register */ - *hwp->tmrp = prescaler; - - /* clear timer counter */ - *hwp->tcnp = 0; - - /* set reference register */ - *hwp->trrp = (unsigned short) (ticks / CPMT_PRESCALER); - -#ifdef DEBUG - printf ("tgcr=0x%x, tmr=0x%x, trr=0x%x," - " tcr=0x%x, tcn=0x%x, ter=0x%x\n", - *hwp->tgcrp, *hwp->tmrp, *hwp->trrp, - *hwp->tcrp, *hwp->tcnp, *hwp->terp - ); -#endif -} - -/* - * Handler for CPMVEC_TIMER1 interrupt - */ -static -void timer_handler (void *arg) -{ - tid_8xx_cpmtimer_t *hwp = (tid_8xx_cpmtimer_t *)arg; - - /* printf ("** TER1=%04x ** ", *hwp->terp); */ - - /* just for demonstration */ - printf ("."); - - /* clear all possible events: Ref. and Cap. */ - *hwp->terp = (CPMT_EVENT_CAP | CPMT_EVENT_REF); -} diff --git a/examples/x86-testapp.c b/examples/x86-testapp.c deleted file mode 100644 index e8603d9..0000000 --- a/examples/x86-testapp.c +++ /dev/null @@ -1,87 +0,0 @@ -#include -#include -#include - -void *func[8], **pfunc; - -typedef struct xxx xxx_t; -struct xxx { - int dummy; - void **pfunc; -} q; - -#define XF_strcpy 3 -#define XF_printf 4 - -#define LABEL(x) \ -asm volatile ( \ - -#if defined(__i386__) -#define EXPORT_FUNC(x) \ -asm volatile ( \ -" .globl mon_" #x "\n" \ -"mon_" #x ":\n" \ -" movl %0, %%eax\n" \ -" movl pfunc, %%ecx\n" \ -" jmp *(%%ecx,%%eax)\n" \ - : : "i"(XF_ ## x * sizeof(void *)) : "eax", "ecx"); -#elif defined(__powerpc__) -#define EXPORT_FUNC(x) \ -asm volatile ( \ -" .globl mon_" #x "\n" \ -"mon_" #x ":\n" \ -" lwz %%r11, %0(%%r2)\n" \ -" lwz %%r11, %1(%%r11)\n" \ -" mtctr %%r11\n" \ -" bctr\n" \ - : : "i"(offsetof(xxx_t, pfunc)), "i"(XF_ ## x * sizeof(void *)) : "r11", "r2"); -#elif defined(__arm__) -#define EXPORT_FUNC(x) \ -asm volatile ( \ -" .globl mon_" #x "\n" \ -"mon_" #x ":\n" \ -" ldr ip, [r8, %0]\n" \ -" ldr pc, [ip, %1]\n" \ - : : "i"(offsetof(xxx_t, pfunc)), "i"(XF_ ## x * sizeof(void *)) : "ip"); -#elif defined(__mips__) -#define EXPORT_FUNC(x) \ -asm volatile ( \ -" .globl mon_" #x "\n" \ -"mon_" #x ":\n" \ -" lw $25, %0($26)\n" \ -" lw $25, %1($25)\n" \ -" jr $25\n" \ - : : "i"(offsetof(xxx_t, pfunc)), "i"(XF_ ## x * sizeof(void *)) : "t9"); -#else -#error [No stub code for this arch] -#endif - -void dummy(void) -{ -EXPORT_FUNC(printf) -EXPORT_FUNC(strcpy) -} - -int main(void) -{ -#if defined(__i386__) - xxx_t *pq; -#elif defined(__powerpc__) - register volatile xxx_t *pq asm("r2"); -#elif defined(__arm__) - register volatile xxx_t *pq asm("r8"); -#elif defined(__mips__) - register volatile xxx_t *pq asm("k0"); -#endif - char buf[32]; - - func[XF_strcpy] = strcpy; - func[XF_printf] = printf; - pq = &q; - pq->pfunc = pfunc = func; - - mon_strcpy(buf, "test"); - mon_printf("hi %s %d z\n", buf, 444); - - return 0; -} -- cgit v0.10.2