From dd168ef5b82255401e46a27faae09e39c66967fe Mon Sep 17 00:00:00 2001 From: Thomas Chou Date: Sat, 17 Apr 2010 17:39:12 +0800 Subject: nios2: allow link script overriding from boards This patch allow boards to override the default link script. Signed-off-by: Thomas Chou Signed-off-by: Scott McNutt diff --git a/arch/nios2/config.mk b/arch/nios2/config.mk index f455982..8e5d6ef 100644 --- a/arch/nios2/config.mk +++ b/arch/nios2/config.mk @@ -29,4 +29,4 @@ STANDALONE_LOAD_ADDR = 0x02000000 -L $(gcclibdir) PLATFORM_CPPFLAGS += -DCONFIG_NIOS2 -D__NIOS2__ PLATFORM_CPPFLAGS += -ffixed-r15 -G0 -LDSCRIPT := $(SRCTREE)/$(CPUDIR)/u-boot.lds +LDSCRIPT ?= $(SRCTREE)/$(CPUDIR)/u-boot.lds -- cgit v0.10.2 From e4bf588609d8d9cefbc312a6c6b8bb309b194fd5 Mon Sep 17 00:00:00 2001 From: Thomas Chou Date: Wed, 31 Mar 2010 08:36:24 +0800 Subject: nios2: add altera cf reset This patch toggles power to reset the cf card. Signed-off-by: Thomas Chou Signed-off-by: Scott McNutt diff --git a/board/altera/common/cfide.c b/board/altera/common/cfide.c new file mode 100644 index 0000000..40d6a12 --- /dev/null +++ b/board/altera/common/cfide.c @@ -0,0 +1,33 @@ +/* + * Altera CF drvier + * + * (C) Copyright 2010, Thomas Chou + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#include +#include + +#if defined(CONFIG_IDE_RESET) && defined(CONFIG_SYS_CF_CTL_BASE) +/* ide_set_reset for Altera CF interface */ +#define ALTERA_CF_CTL_STATUS 0 +#define ALTERA_CF_IDE_CTL 4 +#define ALTERA_CF_CTL_STATUS_PRESENT_MSK (0x1) +#define ALTERA_CF_CTL_STATUS_POWER_MSK (0x2) +#define ALTERA_CF_CTL_STATUS_RESET_MSK (0x4) +#define ALTERA_CF_CTL_STATUS_IRQ_EN_MSK (0x8) +#define ALTERA_CF_IDE_CTL_IRQ_EN_MSK (0x1) + +void ide_set_reset(int idereset) +{ + int i; + writel(idereset ? ALTERA_CF_CTL_STATUS_RESET_MSK : + ALTERA_CF_CTL_STATUS_POWER_MSK, + CONFIG_SYS_CF_CTL_BASE + ALTERA_CF_CTL_STATUS); + /* wait 500 ms for power to stabilize */ + for (i = 0; i < 500; i++) + udelay(1000); +} +#endif -- cgit v0.10.2 From 0dc1c7f692c15fe1745e3eeab918e98ee6126677 Mon Sep 17 00:00:00 2001 From: Thomas Chou Date: Sat, 17 Apr 2010 23:10:09 +0800 Subject: nios2: add 64 bits swab support This patch adds 64 bits swab support. Most 32 bits processors use this. We need 64 bits swab for UBI. Signed-off-by: Thomas Chou Signed-off-by: Scott McNutt diff --git a/arch/nios2/include/asm/byteorder.h b/arch/nios2/include/asm/byteorder.h index 495c823..d5c152e 100644 --- a/arch/nios2/include/asm/byteorder.h +++ b/arch/nios2/include/asm/byteorder.h @@ -25,6 +25,12 @@ #define __ASM_NIOS2_BYTEORDER_H_ #include + +#if !defined(__STRICT_ANSI__) || defined(__KERNEL__) +# define __BYTEORDER_HAS_U64__ +# define __SWAB_64_THRU_32__ +#endif + #include #endif /* __ASM_NIOS2_BYTEORDER_H_ */ -- cgit v0.10.2 From 7e812f2e9cdac80f6287d4aee5deb434597c4f8b Mon Sep 17 00:00:00 2001 From: Thomas Chou Date: Sat, 17 Apr 2010 23:34:40 +0800 Subject: nios2: add dma_alloc_coherent This function return cache-line aligned allocation which is mapped to uncached io region. Signed-off-by: Thomas Chou Signed-off-by: Scott McNutt diff --git a/arch/nios2/include/asm/dma-mapping.h b/arch/nios2/include/asm/dma-mapping.h new file mode 100644 index 0000000..1350e3b --- /dev/null +++ b/arch/nios2/include/asm/dma-mapping.h @@ -0,0 +1,23 @@ +#ifndef __ASM_NIOS2_DMA_MAPPING_H +#define __ASM_NIOS2_DMA_MAPPING_H + +/* dma_alloc_coherent() return cache-line aligned allocation which is mapped + * to uncached io region. + * + * IO_REGION_BASE should be defined in board config header file + * 0x80000000 for nommu, 0xe0000000 for mmu + */ + +static inline void *dma_alloc_coherent(size_t len, unsigned long *handle) +{ + void *addr = malloc(len + CONFIG_SYS_DCACHELINE_SIZE); + if (!addr) + return 0; + flush_dcache((unsigned long)addr, len + CONFIG_SYS_DCACHELINE_SIZE); + *handle = ((unsigned long)addr + + (CONFIG_SYS_DCACHELINE_SIZE - 1)) & + ~(CONFIG_SYS_DCACHELINE_SIZE - 1) & ~(IO_REGION_BASE); + return (void *)(*handle | IO_REGION_BASE); +} + +#endif /* __ASM_NIOS2_DMA_MAPPING_H */ -- cgit v0.10.2 From 994852966d2e6cf98c1dbeea8ee62c233b305ffb Mon Sep 17 00:00:00 2001 From: Thomas Chou Date: Wed, 31 Mar 2010 08:30:08 +0800 Subject: altera_jtag_uart: bypass when no jtag connection This patch adds an option to bypass output waiting when there is no jtag connection. This allows the jtag uart work similar to a serial uart, ie, boot even without connection. This option is enabled with CONFIG_ALTERA_JTAG_UART_BYPASS Signed-off-by: Thomas Chou Signed-off-by: Scott McNutt diff --git a/drivers/serial/altera_jtag_uart.c b/drivers/serial/altera_jtag_uart.c index fb28aa9..2980e4d 100644 --- a/drivers/serial/altera_jtag_uart.c +++ b/drivers/serial/altera_jtag_uart.c @@ -38,8 +38,16 @@ int serial_init( void ) { return(0);} void serial_putc (char c) { - while (NIOS_JTAG_WSPACE ( readl (&jtag->control)) == 0) - WATCHDOG_RESET (); + while (1) { + unsigned st = readl(&jtag->control); + if (NIOS_JTAG_WSPACE(st)) + break; +#ifdef CONFIG_ALTERA_JTAG_UART_BYPASS + if (!(st & NIOS_JTAG_AC)) /* no connection */ + return; +#endif + WATCHDOG_RESET(); + } writel ((unsigned char)c, &jtag->data); } -- cgit v0.10.2 From fd2712d0b1d4c1624bef35b784ee64451ee5a017 Mon Sep 17 00:00:00 2001 From: Thomas Chou Date: Tue, 20 Apr 2010 11:01:11 +0800 Subject: nios2: consolidate reset initialization Global interrupt should be disabled from the beginning. Signed-off-by: Thomas Chou Signed-off-by: Scott McNutt diff --git a/arch/nios2/cpu/start.S b/arch/nios2/cpu/start.S index 31cd5b0..d1016ea 100644 --- a/arch/nios2/cpu/start.S +++ b/arch/nios2/cpu/start.S @@ -34,6 +34,7 @@ .global _start _start: + wrctl status, r0 /* Disable interrupts */ /* ICACHE INIT -- only the icache line at the reset address * is invalidated at reset. So the init must stay within * the cache line size (8 words). If GERMS is used, we'll @@ -43,10 +44,9 @@ _start: ori r4, r0, %lo(CONFIG_SYS_ICACHELINE_SIZE) movhi r5, %hi(CONFIG_SYS_ICACHE_SIZE) ori r5, r5, %lo(CONFIG_SYS_ICACHE_SIZE) - mov r6, r0 -0: initi r6 - add r6, r6, r4 - bltu r6, r5, 0b +0: initi r5 + sub r5, r5, r4 + bgt r5, r0, 0b br _except_end /* Skip the tramp */ /* EXCEPTION TRAMPOLINE -- the following gets copied @@ -62,7 +62,6 @@ _except_end: /* INTERRUPTS -- for now, all interrupts masked and globally * disabled. */ - wrctl status, r0 /* Disable interrupts */ wrctl ienable, r0 /* All disabled */ /* DCACHE INIT -- if dcache not implemented, initd behaves as -- cgit v0.10.2 From 441cac10d8a9438b144ab0ad46280780b58f638b Mon Sep 17 00:00:00 2001 From: Thomas Chou Date: Thu, 22 Apr 2010 17:27:16 +0800 Subject: nios2: fix no flash, add nand and mmc init in board.c This patch fixes error when CONFIG_SYS_NO_FLASH. And adds nand flash and mmc initialization, which should go before env initialization. Signed-off-by: Thomas Chou Signed-off-by: Scott McNutt diff --git a/arch/nios2/lib/board.c b/arch/nios2/lib/board.c index 8ec66a3..f83e691 100644 --- a/arch/nios2/lib/board.c +++ b/arch/nios2/lib/board.c @@ -28,6 +28,7 @@ #include #include #include +#include #include #ifdef CONFIG_STATUS_LED #include @@ -35,6 +36,9 @@ #if defined(CONFIG_SYS_NIOS_EPCSBASE) #include #endif +#ifdef CONFIG_CMD_NAND +#include /* cannot even include nand.h if it isnt configured */ +#endif DECLARE_GLOBAL_DATA_PTR; @@ -100,7 +104,9 @@ void board_init (void) bd = gd->bd; bd->bi_memstart = CONFIG_SYS_SDRAM_BASE; bd->bi_memsize = CONFIG_SYS_SDRAM_SIZE; +#ifndef CONFIG_SYS_NO_FLASH bd->bi_flashstart = CONFIG_SYS_FLASH_BASE; +#endif #if defined(CONFIG_SYS_SRAM_BASE) && defined(CONFIG_SYS_SRAM_SIZE) bd->bi_sramstart= CONFIG_SYS_SRAM_BASE; bd->bi_sramsize = CONFIG_SYS_SRAM_SIZE; @@ -119,8 +125,20 @@ void board_init (void) /* The Malloc area is immediately below the monitor copy in RAM */ mem_malloc_init(CONFIG_SYS_MALLOC_BASE, CONFIG_SYS_MALLOC_LEN); +#ifndef CONFIG_SYS_NO_FLASH WATCHDOG_RESET (); bd->bi_flashsize = flash_init(); +#endif + +#ifdef CONFIG_CMD_NAND + puts("NAND: "); + nand_init(); +#endif + +#ifdef CONFIG_GENERIC_MMC + puts("MMC: "); + mmc_initialize(bd); +#endif WATCHDOG_RESET (); env_relocate(); -- cgit v0.10.2 From 8cbb0ddd7e696c6a4be1ae3ab3c95d3c8f6a7031 Mon Sep 17 00:00:00 2001 From: Thomas Chou Date: Wed, 21 Apr 2010 08:40:59 +0800 Subject: nios2: add nios2-generic board This is a generic approach to port u-boot for nios2 boards. You may find the usage of this approach on the nioswiki, http://nioswiki.com/DasUBoot A fpga parameter file, which contains base address information and drivers declaration, is generated from Altera's hardware system description sopc file using tools. The example fpga parameter file is compatible with EP1C20, EP1S10 and EP1S40 boards. So these boards can be removed after this commit. Though epcs controller is removed to cut the dependency of altera_spi driver. Signed-off-by: Thomas Chou Signed-off-by: Scott McNutt diff --git a/MAINTAINERS b/MAINTAINERS index 04c8730..46e051b 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -858,6 +858,7 @@ Scott McNutt EP1C20 Nios-II EP1S10 Nios-II EP1S40 Nios-II + nios2-generic Nios-II ######################################################################### # MicroBlaze Systems: # diff --git a/MAKEALL b/MAKEALL index 4632750..79e57ab 100755 --- a/MAKEALL +++ b/MAKEALL @@ -830,6 +830,7 @@ LIST_nios2=" \ EP1S40 \ PCI5441 \ PK1C20 \ + nios2-generic \ " ######################################################################### diff --git a/Makefile b/Makefile index 34f10ce..0024fe2 100644 --- a/Makefile +++ b/Makefile @@ -3534,6 +3534,12 @@ PK1C20_config : unconfig PCI5441_config : unconfig @$(MKCONFIG) PCI5441 nios2 nios2 pci5441 psyent +# nios2 generic boards +NIOS2_GENERIC = nios2-generic + +$(NIOS2_GENERIC:%=%_config) : unconfig + @$(MKCONFIG) $(@:_config=) nios2 nios2 nios2-generic altera + #======================================================================== ## Microblaze #======================================================================== diff --git a/board/altera/nios2-generic/Makefile b/board/altera/nios2-generic/Makefile new file mode 100644 index 0000000..6780872 --- /dev/null +++ b/board/altera/nios2-generic/Makefile @@ -0,0 +1,59 @@ +# +# (C) Copyright 2001-2006 +# Wolfgang Denk, DENX Software Engineering, wd@denx.de. +# (C) Copyright 2010, Thomas Chou +# +# 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 $(TOPDIR)/config.mk +ifneq ($(OBJTREE),$(SRCTREE)) +$(shell mkdir -p $(obj)../common) +endif + +LIB = $(obj)lib$(BOARD).a + +COBJS-y := $(BOARD).o +COBJS-$(CONFIG_CMD_IDE) += ../common/cfide.o +COBJS-$(CONFIG_EPLED) += ../common/epled.o +COBJS-$(CONFIG_SEVENSEG) += ../common/sevenseg.o + +SOBJS-y := text_base.o + +SRCS := $(SOBJS-y:.o=.S) $(COBJS-y:.o=.c) +OBJS := $(addprefix $(obj),$(COBJS-y)) +SOBJS := $(addprefix $(obj),$(SOBJS-y)) + +$(LIB): $(obj).depend $(OBJS) $(SOBJS) + $(AR) $(ARFLAGS) $@ $(OBJS) $(SOBJS) + +clean: + rm -f $(SOBJS) $(OBJS) + +distclean: clean + rm -f $(LIB) core *.bak $(obj).depend + +######################################################################### + +# defines $(obj).depend target +include $(SRCTREE)/rules.mk + +sinclude $(obj).depend + +######################################################################### diff --git a/board/altera/nios2-generic/config.mk b/board/altera/nios2-generic/config.mk new file mode 100644 index 0000000..d500133 --- /dev/null +++ b/board/altera/nios2-generic/config.mk @@ -0,0 +1,34 @@ +# +# (C) Copyright 2005, Psyent Corporation +# Scott McNutt +# +# See file CREDITS for list of people who contributed to this +# project. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation; either version 2 of +# the License, or (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place, Suite 330, Boston, +# MA 02111-1307 USA +# + +# we get text_base from board config header, so do not use this +#TEXT_BASE = do-not-use-me + +PLATFORM_CPPFLAGS += -mno-hw-div -mno-hw-mul +PLATFORM_CPPFLAGS += -I$(TOPDIR)/board/$(VENDOR)/include + +ifeq ($(debug),1) +PLATFORM_CPPFLAGS += -DDEBUG +endif + +LDSCRIPT := $(SRCTREE)/board/$(VENDOR)/$(BOARD)/u-boot.lds diff --git a/board/altera/nios2-generic/custom_fpga.h b/board/altera/nios2-generic/custom_fpga.h new file mode 100644 index 0000000..761f605 --- /dev/null +++ b/board/altera/nios2-generic/custom_fpga.h @@ -0,0 +1,66 @@ +/* + * (C) Copyright 2010, Thomas Chou + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This file is generated by sopc-create-config-files. + */ +#ifndef _CUSTOM_FPGA_H_ +#define _CUSTOM_FPGA_H_ + +/* generated from std_1c20.sopc */ + +/* cpu.data_master is a altera_nios2 */ +#define CONFIG_SYS_CLK_FREQ 50000000 +#define CONFIG_SYS_RESET_ADDR 0x00000000 +#define CONFIG_SYS_EXCEPTION_ADDR 0x01000020 +#define CONFIG_SYS_ICACHE_SIZE 4096 +#define CONFIG_SYS_ICACHELINE_SIZE 32 +#define CONFIG_SYS_DCACHE_SIZE 2048 +#define CONFIG_SYS_DCACHELINE_SIZE 4 + +/* sdram.s1 is a altera_avalon_new_sdram_controller */ +#define CONFIG_SYS_SDRAM_BASE 0x01000000 +#define CONFIG_SYS_SDRAM_SIZE 0x01000000 + +/* uart1.s1 is a altera_avalon_uart */ +#define CONFIG_SYS_UART_BASE 0x82120840 +#define CONFIG_SYS_UART_FREQ 50000000 +#define CONFIG_SYS_UART_BAUD 115200 + +/* lan91c111.s1 is a altera_avalon_lan91c111 */ +#define CONFIG_SMC91111_BASE 0x82110300 +#define CONFIG_SMC91111 +#define CONFIG_SMC_USE_32_BIT + +/* jtag_uart.avalon_jtag_slave is a altera_avalon_jtag_uart */ +#define CONFIG_SYS_JTAG_UART_BASE 0x821208b0 + +/* led_pio.s1 is a altera_avalon_pio */ +#define LED_PIO_BASE 0x82120870 + +/* high_res_timer.s1 is a altera_avalon_timer */ +#define CONFIG_SYS_TIMER_BASE 0x82120820 +#define CONFIG_SYS_TIMER_IRQ 3 +#define CONFIG_SYS_TIMER_FREQ 50000000 + +/* ext_flash.s1 is a altera_avalon_cfi_flash */ +#define CONFIG_SYS_FLASH_BASE 0x80000000 +#define CONFIG_FLASH_CFI_DRIVER +#define CONFIG_SYS_CFI_FLASH_STATUS_POLL /* fix amd flash issue */ +#define CONFIG_SYS_FLASH_CFI +#define CONFIG_SYS_FLASH_USE_BUFFER_WRITE +#define CONFIG_SYS_FLASH_PROTECTION +#define CONFIG_SYS_MAX_FLASH_BANKS 1 +#define CONFIG_SYS_MAX_FLASH_SECT 1024 + +/* ext_ram.s1 is a altera_nios_dev_kit_stratix_edition_sram2 */ +#define CONFIG_SYS_SRAM_BASE 0x02000000 +#define CONFIG_SYS_SRAM_SIZE 0x00100000 + +/* sysid.control_slave is a altera_avalon_sysid */ +#define CONFIG_SYS_SYSID_BASE 0x821208b8 + +#endif /* _CUSTOM_FPGA_H_ */ diff --git a/board/altera/nios2-generic/nios2-generic.c b/board/altera/nios2-generic/nios2-generic.c new file mode 100644 index 0000000..89848cf --- /dev/null +++ b/board/altera/nios2-generic/nios2-generic.c @@ -0,0 +1,68 @@ +/* + * (C) Copyright 2005, Psyent Corporation + * Scott McNutt + * (C) Copyright 2010, Thomas Chou + * + * 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 + +void text_base_hook(void); /* nop hook for text_base.S */ + +int board_early_init_f(void) +{ + text_base_hook(); + return 0; +} + +int checkboard(void) +{ + printf("BOARD : %s\n", CONFIG_BOARD_NAME); + return 0; +} + +phys_size_t initdram(int board_type) +{ + return 0; +} + +#ifdef CONFIG_CMD_NET +int board_eth_init(bd_t *bis) +{ + int rc = 0; +#ifdef CONFIG_SMC91111 + rc += smc91111_initialize(0, CONFIG_SMC91111_BASE); +#endif +#ifdef CONFIG_DRIVER_DM9000 + rc += dm9000_initialize(bis); +#endif +#ifdef CONFIG_ALTERA_TSE + rc += altera_tse_initialize(0, + CONFIG_SYS_ALTERA_TSE_MAC_BASE, + CONFIG_SYS_ALTERA_TSE_SGDMA_RX_BASE, + CONFIG_SYS_ALTERA_TSE_SGDMA_TX_BASE); +#endif +#ifdef CONFIG_ETHOC + rc += ethoc_initialize(0, CONFIG_SYS_ETHOC_BASE); +#endif + return rc; +} +#endif diff --git a/board/altera/nios2-generic/text_base.S b/board/altera/nios2-generic/text_base.S new file mode 100644 index 0000000..f236db1 --- /dev/null +++ b/board/altera/nios2-generic/text_base.S @@ -0,0 +1,21 @@ +/* + * text_base + * + * (C) Copyright 2010, Thomas Chou + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#include + +#ifdef CONFIG_SYS_MONITOR_BASE + .text + /* text base used in link script u-boot.lds */ + .global text_base + .equ text_base,CONFIG_SYS_MONITOR_BASE + /* dummy func to let linker include this file */ + .global text_base_hook +text_base_hook: + ret +#endif diff --git a/board/altera/nios2-generic/u-boot.lds b/board/altera/nios2-generic/u-boot.lds new file mode 100644 index 0000000..d4be077 --- /dev/null +++ b/board/altera/nios2-generic/u-boot.lds @@ -0,0 +1,136 @@ +/* + * (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_base; + .text : + { + arch/nios2/cpu/start.o (.text) + *(.text) + *(.text.*) + *(.gnu.linkonce.t*) + *(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*))) + *(.gnu.linkonce.r*) + } + . = ALIGN (4); + _etext = .; + PROVIDE (etext = .); + + /* CMD TABLE - sandwich this in between text and data so + * the initialization code relocates the command table as + * well -- admittedly, this is just pure laziness ;-) + */ + __u_boot_cmd_start = .; + .u_boot_cmd : + { + *(.u_boot_cmd) + } + . = ALIGN(4); + __u_boot_cmd_end = .; + + /* 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 = .); + + /* 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/include/configs/nios2-generic.h b/include/configs/nios2-generic.h new file mode 100644 index 0000000..e83e1e3 --- /dev/null +++ b/include/configs/nios2-generic.h @@ -0,0 +1,153 @@ +/* + * (C) Copyright 2005, Psyent Corporation + * Scott McNutt + * (C) Copyright 2010, Thomas Chou + * + * 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 __CONFIG_H +#define __CONFIG_H + +/* + * BOARD/CPU + */ +#include "../board/altera/nios2-generic/custom_fpga.h" /* fpga parameters */ +#define CONFIG_BOARD_NAME "nios2-generic" /* custom board name */ +#define CONFIG_BOARD_EARLY_INIT_F /* enable early board-spec. init */ +#define CONFIG_SYS_NIOS_SYSID_BASE CONFIG_SYS_SYSID_BASE + +/* + * SERIAL + */ +#define CONFIG_ALTERA_UART +#if defined(CONFIG_ALTERA_JTAG_UART) +# define CONFIG_SYS_NIOS_CONSOLE CONFIG_SYS_JTAG_UART_BASE +#else +# define CONFIG_SYS_NIOS_CONSOLE CONFIG_SYS_UART_BASE +#endif + +#define CONFIG_ALTERA_JTAG_UART_BYPASS +#define CONFIG_SYS_NIOS_FIXEDBAUD +#define CONFIG_BAUDRATE CONFIG_SYS_UART_BAUD +#define CONFIG_SYS_BAUDRATE_TABLE {CONFIG_BAUDRATE} +#define CONFIG_SYS_CONSOLE_INFO_QUIET /* Suppress console info */ + +/* + * TIMER + */ +#define CONFIG_SYS_NIOS_TMRBASE CONFIG_SYS_TIMER_BASE +#define CONFIG_SYS_NIOS_TMRIRQ CONFIG_SYS_TIMER_IRQ +#define CONFIG_SYS_HZ 1000 /* Always 1000 */ +#define CONFIG_SYS_NIOS_TMRMS 10 /* Desired period (msec)*/ +#define CONFIG_SYS_NIOS_TMRCNT \ + (CONFIG_SYS_NIOS_TMRMS * (CONFIG_SYS_TIMER_FREQ / 1000) - 1) + +/* + * STATUS LED + */ +#define CONFIG_STATUS_LED /* Enable status driver */ +#define CONFIG_EPLED /* Enable LED PIO driver */ +#define CONFIG_SYS_LEDPIO_ADDR LED_PIO_BASE + +#define STATUS_LED_BIT 1 /* Bit-0 on PIO */ +#define STATUS_LED_STATE 1 /* Blinking */ +#define STATUS_LED_PERIOD (500 / CONFIG_SYS_NIOS_TMRMS) /* 500 msec */ + +/* + * BOOTP options + */ +#define CONFIG_BOOTP_BOOTFILESIZE +#define CONFIG_BOOTP_BOOTPATH +#define CONFIG_BOOTP_GATEWAY +#define CONFIG_BOOTP_HOSTNAME + +/* + * Command line configuration. + */ +#include +#undef CONFIG_CMD_BOOTD +#undef CONFIG_CMD_FPGA +#undef CONFIG_CMD_IMLS +#undef CONFIG_CMD_ITEST +#undef CONFIG_CMD_NFS +#undef CONFIG_CMD_SETGETDCR +#undef CONFIG_CMD_XIMG + +#ifdef CONFIG_CMD_NET +# define CONFIG_NET_MULTI +# define CONFIG_CMD_DHCP +# define CONFIG_CMD_PING +#endif + +/* + * ENVIRONMENT -- Put environment in sector CONFIG_SYS_MONITOR_LEN above + * CONFIG_SYS_RESET_ADDR, since we assume the monitor is stored at the + * reset address, no? This will keep the environment in user region + * of flash. NOTE: the monitor length must be multiple of sector size + * (which is common practice). + */ +#define CONFIG_ENV_IS_IN_FLASH + +#define CONFIG_ENV_SIZE 0x10000 /* 64k, 1 sector */ +#define CONFIG_ENV_OVERWRITE /* Serial change Ok */ +#define CONFIG_ENV_ADDR ((CONFIG_SYS_RESET_ADDR + \ + CONFIG_SYS_MONITOR_LEN) | \ + CONFIG_SYS_FLASH_BASE) + +/* + * MEMORY ORGANIZATION + * -Monitor at top of sdram. + * -The heap is placed below the monitor + * -Global data is placed below the heap. + * -The stack is placed below global data (&grows down). + */ +#define CONFIG_MONITOR_IS_IN_RAM +#define CONFIG_SYS_MONITOR_LEN 0x40000 /* Reserve 256k */ +#define CONFIG_SYS_MONITOR_BASE (CONFIG_SYS_SDRAM_BASE + \ + CONFIG_SYS_SDRAM_SIZE - \ + CONFIG_SYS_MONITOR_LEN) +#define CONFIG_SYS_GBL_DATA_SIZE 256 /* Global data size rsvd */ +#define CONFIG_SYS_MALLOC_LEN (CONFIG_ENV_SIZE + 0x20000) +#define CONFIG_SYS_MALLOC_BASE (CONFIG_SYS_MONITOR_BASE - \ + CONFIG_SYS_MALLOC_LEN) +#define CONFIG_SYS_GBL_DATA_OFFSET (CONFIG_SYS_MALLOC_BASE - \ + CONFIG_SYS_GBL_DATA_SIZE) +#define CONFIG_SYS_INIT_SP CONFIG_SYS_GBL_DATA_OFFSET + +/* + * MISC + */ +#define CONFIG_SYS_LONGHELP /* Provide extended help */ +#define CONFIG_SYS_PROMPT "==> " /* Command prompt */ +#define CONFIG_SYS_CBSIZE 256 /* Console I/O buf size */ +#define CONFIG_SYS_MAXARGS 16 /* Max command args */ +#define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE /* Bootarg buf size */ +#define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE + \ + sizeof(CONFIG_SYS_PROMPT) + \ + 16) /* Print buf size */ +#define CONFIG_SYS_LOAD_ADDR CONFIG_SYS_SDRAM_BASE +#define CONFIG_SYS_MEMTEST_START CONFIG_SYS_SDRAM_BASE +#define CONFIG_SYS_MEMTEST_END (CONFIG_SYS_INIT_SP - 0x20000) +#define CONFIG_CMDLINE_EDITING + +#define CONFIG_SYS_HUSH_PARSER +#define CONFIG_SYS_PROMPT_HUSH_PS2 "> " + +#endif /* __CONFIG_H */ -- cgit v0.10.2