diff options
author | wdenk <wdenk> | 2002-11-03 00:01:44 (GMT) |
---|---|---|
committer | wdenk <wdenk> | 2002-11-03 00:01:44 (GMT) |
commit | 47d1a6e1ed87fe1fb3d737acdb85f69bc3259522 (patch) | |
tree | bcf85bebad1b0b31392a84a649595beacaa57ab1 /common | |
parent | e221174377d7e3ee848e014b96430d4c97023e93 (diff) | |
download | u-boot-47d1a6e1ed87fe1fb3d737acdb85f69bc3259522.tar.xz |
Initial revision
Diffstat (limited to 'common')
-rw-r--r-- | common/cmd_bedbug.c | 424 | ||||
-rw-r--r-- | common/cmd_bootm.c | 931 | ||||
-rw-r--r-- | common/console.c | 532 |
3 files changed, 1887 insertions, 0 deletions
diff --git a/common/cmd_bedbug.c b/common/cmd_bedbug.c new file mode 100644 index 0000000..75b74d5 --- /dev/null +++ b/common/cmd_bedbug.c @@ -0,0 +1,424 @@ +/* + * BedBug Functions + */ + +#include <common.h> +#include <command.h> +#include <linux/ctype.h> +#include <net.h> + +#include <cmd_bedbug.h> +#include <bedbug/bedbug.h> +#include <bedbug/regs.h> +#include <bedbug/ppc.h> +#include <elf.h> + +#if (CONFIG_COMMANDS & CFG_CMD_BEDBUG) + +#ifndef MAX +#define MAX(a,b) ((a) > (b) ? (a) : (b)) +#endif + +extern void show_regs __P((struct pt_regs*)); +extern int run_command __P((const char*, int)); +extern char console_buffer[]; + +ulong dis_last_addr = 0; /* Last address disassembled */ +ulong dis_last_len = 20; /* Default disassembler length */ +CPU_DEBUG_CTX bug_ctx; /* Bedbug context structure */ + + +/* ====================================================================== + * U-Boot's puts function does not append a newline, so the bedbug stuff + * will use this for the output of the dis/assembler. + * ====================================================================== */ + +int bedbug_puts(const char *str) +{ + /* -------------------------------------------------- */ + + printf( "%s\r\n", str ); + return 0; +} /* bedbug_puts */ + + + +/* ====================================================================== + * Initialize the bug_ctx structure used by the bedbug debugger. This is + * specific to the CPU since each has different debug registers and + * settings. + * ====================================================================== */ + +void bedbug_init( void ) +{ + /* -------------------------------------------------- */ + +#if defined(CONFIG_4xx) + void bedbug405_init( void ); + bedbug405_init(); +#elif defined(CONFIG_MPC860) + void bedbug860_init( void ); + bedbug860_init(); +#endif + +#if defined(CONFIG_MPC824X) || defined(CONFIG_MPC8260) + /* Processors that are 603e core based */ + void bedbug603e_init( void ); + + bedbug603e_init(); +#endif + + return; +} /* bedbug_init */ + + + +/* ====================================================================== + * Entry point from the interpreter to the disassembler. Repeated calls + * will resume from the last disassembled address. + * ====================================================================== */ +int do_bedbug_dis (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) +{ + ulong addr; /* Address to start disassembly from */ + ulong len; /* # of instructions to disassemble */ + /* -------------------------------------------------- */ + + /* Setup to go from the last address if none is given */ + addr = dis_last_addr; + len = dis_last_len; + + if (argc < 2) + { + printf ("Usage:\n%s\n", cmdtp->usage); + return 1; + } + + if(( flag & CMD_FLAG_REPEAT ) == 0 ) + { + /* New command */ + addr = simple_strtoul( argv[1], NULL, 16 ); + + /* If an extra param is given then it is the length */ + if( argc > 2 ) + len = simple_strtoul( argv[2], NULL, 16 ); + } + + /* Run the disassembler */ + disppc( (unsigned char *)addr, 0, len, bedbug_puts, F_RADHEX ); + + dis_last_addr = addr + (len * 4); + dis_last_len = len; + return 0; +} /* do_bedbug_dis */ + + + +/* ====================================================================== + * Entry point from the interpreter to the assembler. Assembles + * instructions in consecutive memory locations until a '.' (period) is + * entered on a line by itself. + * ====================================================================== */ +int do_bedbug_asm (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) +{ + long mem_addr; /* Address to assemble into */ + unsigned long instr; /* Machine code for text */ + char prompt[ 15 ]; /* Prompt string for user input */ + int asm_err; /* Error code from the assembler*/ + /* -------------------------------------------------- */ + int rcode = 0; + + if (argc < 2) + { + printf ("Usage:\n%s\n", cmdtp->usage); + return 1; + } + + printf( "\nEnter '.' when done\n" ); + mem_addr = simple_strtoul( argv[ 1 ], NULL, 16 ); + + while( 1 ) + { + putc( '\n' ); + disppc( (unsigned char *)mem_addr, 0, 1, bedbug_puts, F_RADHEX ); + + sprintf( prompt, "%08lx: ", mem_addr ); + readline( prompt ); + + if( console_buffer[ 0 ] && strcmp( console_buffer, "." )) + { + if(( instr = asmppc( mem_addr, console_buffer, &asm_err )) != 0 ) + { + *(unsigned long *)mem_addr = instr; + mem_addr += 4; + } + else + { + printf( "*** Error: %s ***\n", asm_error_str( asm_err )); + rcode = 1; + } + } + else + { + break; + } + } + return rcode; +} /* do_bedbug_asm */ + + + +/* ====================================================================== + * Used to set a break point from the interpreter. Simply calls into the + * CPU-specific break point set routine. + * ====================================================================== */ + +int do_bedbug_break (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) +{ + /* -------------------------------------------------- */ + if( bug_ctx.do_break ) + (*bug_ctx.do_break)( cmdtp, flag, argc, argv ); + return 0; + +} /* do_bedbug_break */ + + + +/* ====================================================================== + * Called from the debug interrupt routine. Simply calls the CPU-specific + * breakpoint handling routine. + * ====================================================================== */ + +void do_bedbug_breakpoint (struct pt_regs *regs) +{ + /* -------------------------------------------------- */ + + if( bug_ctx.break_isr ) + (*bug_ctx.break_isr)( regs ); + + return; +} /* do_bedbug_breakpoint */ + + + +/* ====================================================================== + * Called from the CPU-specific breakpoint handling routine. Enter a + * mini main loop until the stopped flag is cleared from the breakpoint + * context. + * + * This handles the parts of the debugger that are common to all CPU's. + * ====================================================================== */ + +void bedbug_main_loop( unsigned long addr, struct pt_regs *regs ) +{ + int len; /* Length of command line */ + int flag; /* Command flags */ + int rc = 0; /* Result from run_command*/ + char prompt_str[ 20 ]; /* Prompt string */ + static char lastcommand[ CFG_CBSIZE ] = {0}; /* previous command */ + /* -------------------------------------------------- */ + + if( bug_ctx.clear ) + (*bug_ctx.clear)( bug_ctx.current_bp ); + + printf( "Breakpoint %d: ", bug_ctx.current_bp ); + disppc( (unsigned char *)addr, 0, 1, bedbug_puts, F_RADHEX ); + + bug_ctx.stopped = 1; + bug_ctx.regs = regs; + + sprintf( prompt_str, "BEDBUG.%d =>", bug_ctx.current_bp ); + + /* A miniature main loop */ + while( bug_ctx.stopped ) + { + len = readline( prompt_str ); + + flag = 0; /* assume no special flags for now */ + + if (len > 0) + strcpy( lastcommand, console_buffer ); + else if( len == 0 ) + flag |= CMD_FLAG_REPEAT; + + if (len == -1) + printf ("<INTERRUPT>\n"); + else + rc = run_command( lastcommand, flag ); + + if (rc <= 0) { + /* invalid command or not repeatable, forget it */ + lastcommand[0] = 0; + } + } + + bug_ctx.regs = NULL; + bug_ctx.current_bp = 0; + + return; +} /* bedbug_main_loop */ + + + +/* ====================================================================== + * Interpreter command to continue from a breakpoint. Just clears the + * stopped flag in the context so that the breakpoint routine will + * return. + * ====================================================================== */ +int do_bedbug_continue (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) + +{ + /* -------------------------------------------------- */ + + if( ! bug_ctx.stopped ) + { + printf( "Not at a breakpoint\n" ); + return 1; + } + + bug_ctx.stopped = 0; + return 0; +} /* do_bedbug_continue */ + + + +/* ====================================================================== + * Interpreter command to continue to the next instruction, stepping into + * subroutines. Works by calling the find_next_addr() routine to compute + * the address passes control to the CPU-specific set breakpoint routine + * for the current breakpoint number. + * ====================================================================== */ +int do_bedbug_step (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) +{ + unsigned long addr; /* Address to stop at */ + /* -------------------------------------------------- */ + + if( ! bug_ctx.stopped ) + { + printf( "Not at a breakpoint\n" ); + return 1; + } + + if( !find_next_address( (unsigned char *)&addr, FALSE, bug_ctx.regs )) + return 1; + + if( bug_ctx.set ) + (*bug_ctx.set)( bug_ctx.current_bp, addr ); + + bug_ctx.stopped = 0; + return 0; +} /* do_bedbug_step */ + + + +/* ====================================================================== + * Interpreter command to continue to the next instruction, stepping over + * subroutines. Works by calling the find_next_addr() routine to compute + * the address passes control to the CPU-specific set breakpoint routine + * for the current breakpoint number. + * ====================================================================== */ +int do_bedbug_next (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) +{ + unsigned long addr; /* Address to stop at */ + /* -------------------------------------------------- */ + + if( ! bug_ctx.stopped ) + { + printf( "Not at a breakpoint\n" ); + return 1; + } + + if( !find_next_address( (unsigned char *)&addr, TRUE, bug_ctx.regs )) + return 1; + + if( bug_ctx.set ) + (*bug_ctx.set)( bug_ctx.current_bp, addr ); + + bug_ctx.stopped = 0; + return 0; +} /* do_bedbug_next */ + + + +/* ====================================================================== + * Interpreter command to print the current stack. This assumes an EABI + * architecture, so it starts with GPR R1 and works back up the stack. + * ====================================================================== */ +int do_bedbug_stack (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) +{ + DECLARE_GLOBAL_DATA_PTR; + + unsigned long sp; /* Stack pointer */ + unsigned long func; /* LR from stack */ + int depth; /* Stack iteration level */ + int skip = 1; /* Flag to skip the first entry */ + unsigned long top; /* Top of memory address */ + /* -------------------------------------------------- */ + + if( ! bug_ctx.stopped ) + { + printf( "Not at a breakpoint\n" ); + return 1; + } + + top = gd->bd->bi_memstart + gd->bd->bi_memsize; + depth = 0; + + printf( "Depth PC\n" ); + printf( "----- --------\n" ); + printf( "%5d %08lx\n", depth++, bug_ctx.regs->nip ); + + sp = bug_ctx.regs->gpr[ 1 ]; + func = *(unsigned long *)(sp+4); + + while(( func < top ) && ( sp < top )) + { + if( !skip ) + printf( "%5d %08lx\n", depth++, func ); + else + --skip; + + sp = *(unsigned long *)sp; + func = *(unsigned long *)(sp+4); + } + return 0; +} /* do_bedbug_stack */ + + + +/* ====================================================================== + * Interpreter command to dump the registers. Calls the CPU-specific + * show registers routine. + * ====================================================================== */ +int do_bedbug_rdump (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) +{ + /* -------------------------------------------------- */ + + if( ! bug_ctx.stopped ) + { + printf( "Not at a breakpoint\n" ); + return 1; + } + + show_regs( bug_ctx.regs ); + return 0; +} /* do_bedbug_rdump */ + + +/* ====================================================================== */ +#endif /* CFG_CMD_BEDBUG */ + + +/* + * Copyright (c) 2001 William L. Pitts + * All rights reserved. + * + * Redistribution and use in source and binary forms are freely + * permitted provided that the above copyright notice and this + * paragraph and the following disclaimer are duplicated in all + * such forms. + * + * This software is provided "AS IS" and without any express or + * implied warranties, including, without limitation, the implied + * warranties of merchantability and fitness for a particular + * purpose. + */ diff --git a/common/cmd_bootm.c b/common/cmd_bootm.c new file mode 100644 index 0000000..e8ce40d --- /dev/null +++ b/common/cmd_bootm.c @@ -0,0 +1,931 @@ +/* + * (C) Copyright 2000-2002 + * 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 + */ + +/* + * Boot support + */ +#include <common.h> +#include <watchdog.h> +#include <command.h> +#include <cmd_boot.h> +#include <image.h> +#include <malloc.h> +#include <zlib.h> +#include <asm/byteorder.h> +#if (CONFIG_COMMANDS & CFG_CMD_DATE) || defined(CONFIG_TIMESTAMP) +#include <rtc.h> +#endif + +#ifdef CFG_HUSH_PARSER +#include <hush.h> +#endif + +#ifdef CONFIG_SHOW_BOOT_PROGRESS +# include <status_led.h> +# define SHOW_BOOT_PROGRESS(arg) show_boot_progress(arg) +#else +# define SHOW_BOOT_PROGRESS(arg) +#endif + +#ifdef CFG_INIT_RAM_LOCK +#include <asm/cache.h> +#endif + +/* + * Some systems (for example LWMON) have very short watchdog periods; + * we must make sure to split long operations like memmove() or + * crc32() into reasonable chunks. + */ +#if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG) +# define CHUNKSZ (64 * 1024) +#endif + +int gunzip (void *, int, unsigned char *, int *); + +static void *zalloc(void *, unsigned, unsigned); +static void zfree(void *, void *, unsigned); + +#if (CONFIG_COMMANDS & CFG_CMD_IMI) +static int image_info (unsigned long addr); +#endif +static void print_type (image_header_t *hdr); + +/* + * Continue booting an OS image; caller already has: + * - copied image header to global variable `header' + * - checked header magic number, checksums (both header & image), + * - verified image architecture (PPC) and type (KERNEL or MULTI), + * - loaded (first part of) image to header load address, + * - disabled interrupts. + */ +typedef void boot_os_Fcn (cmd_tbl_t *cmdtp, int flag, + int argc, char *argv[], + ulong addr, /* of image to boot */ + ulong *len_ptr, /* multi-file image length table */ + int verify); /* getenv("verify")[0] != 'n' */ + +#ifndef CONFIG_ARM +static boot_os_Fcn do_bootm_linux; +#else +extern boot_os_Fcn do_bootm_linux; +#endif +static boot_os_Fcn do_bootm_netbsd; +#if (CONFIG_COMMANDS & CFG_CMD_ELF) +static boot_os_Fcn do_bootm_vxworks; +static boot_os_Fcn do_bootm_qnxelf; +int do_bootvx ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[] ); +int do_bootelf (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[] ); +#endif /* CFG_CMD_ELF */ + +image_header_t header; + +ulong load_addr = CFG_LOAD_ADDR; /* Default Load Address */ + +int do_bootm (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) +{ + ulong iflag; + ulong addr; + ulong data, len, checksum; + ulong *len_ptr; + int i, verify; + char *name, *s; + int (*appl)(cmd_tbl_t *, int, int, char *[]); + image_header_t *hdr = &header; + + s = getenv ("verify"); + verify = (s && (*s == 'n')) ? 0 : 1; + + if (argc < 2) { + addr = load_addr; + } else { + addr = simple_strtoul(argv[1], NULL, 16); + } + + SHOW_BOOT_PROGRESS (1); + printf ("## Booting image at %08lx ...\n", addr); + + /* Copy header so we can blank CRC field for re-calculation */ + memmove (&header, (char *)addr, sizeof(image_header_t)); + + if (ntohl(hdr->ih_magic) != IH_MAGIC) { + printf ("Bad Magic Number\n"); + SHOW_BOOT_PROGRESS (-1); + return 1; + } + SHOW_BOOT_PROGRESS (2); + + data = (ulong)&header; + len = sizeof(image_header_t); + + checksum = ntohl(hdr->ih_hcrc); + hdr->ih_hcrc = 0; + + if (crc32 (0, (char *)data, len) != checksum) { + printf ("Bad Header Checksum\n"); + SHOW_BOOT_PROGRESS (-2); + return 1; + } + SHOW_BOOT_PROGRESS (3); + + /* for multi-file images we need the data part, too */ + print_image_hdr ((image_header_t *)addr); + + data = addr + sizeof(image_header_t); + len = ntohl(hdr->ih_size); + + if (verify) { + printf (" Verifying Checksum ... "); + if (crc32 (0, (char *)data, len) != ntohl(hdr->ih_dcrc)) { + printf ("Bad Data CRC\n"); + SHOW_BOOT_PROGRESS (-3); + return 1; + } + printf ("OK\n"); + } + SHOW_BOOT_PROGRESS (4); + + len_ptr = (ulong *)data; + + if (hdr->ih_arch != IH_CPU_PPC && hdr->ih_arch != IH_CPU_ARM) { + printf ("Unsupported Architecture\n"); + SHOW_BOOT_PROGRESS (-4); + return 1; + } + SHOW_BOOT_PROGRESS (5); + + switch (hdr->ih_type) { + case IH_TYPE_STANDALONE: name = "Standalone Application"; + break; + case IH_TYPE_KERNEL: name = "Kernel Image"; + break; + case IH_TYPE_MULTI: name = "Multi-File Image"; + len = ntohl(len_ptr[0]); + /* OS kernel is always the first image */ + data += 8; /* kernel_len + terminator */ + for (i=1; len_ptr[i]; ++i) + data += 4; + break; + default: printf ("Wrong Image Type for %s command\n", cmdtp->name); + SHOW_BOOT_PROGRESS (-5); + return 1; + } + SHOW_BOOT_PROGRESS (6); + + /* + * We have reached the point of no return: we are going to + * overwrite all exception vector code, so we cannot easily + * recover from any failures any more... + */ + + iflag = disable_interrupts(); + + switch (hdr->ih_comp) { + case IH_COMP_NONE: + if(hdr->ih_load == addr) { + printf (" XIP %s ... ", name); + } else { +#if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG) + size_t l = len; + void *to = (void *)ntohl(hdr->ih_load); + void *from = (void *)data; + + printf (" Loading %s ... ", name); + + while (l > 0) { + size_t tail = (l > CHUNKSZ) ? CHUNKSZ : l; + WATCHDOG_RESET(); + memmove (to, from, tail); + to += tail; + from += tail; + l -= tail; + } +#else /* !(CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG) */ + memmove ((void *) ntohl(hdr->ih_load), (uchar *)data, len); +#endif /* CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG */ + } + break; + case IH_COMP_GZIP: + printf (" Uncompressing %s ... ", name); + if (gunzip ((void *)ntohl(hdr->ih_load), 0x400000, + (uchar *)data, (int *)&len) != 0) { + printf ("GUNZIP ERROR - must RESET board to recover\n"); + SHOW_BOOT_PROGRESS (-6); + do_reset (cmdtp, flag, argc, argv); + } + break; + default: + if (iflag) + enable_interrupts(); + printf ("Unimplemented compression type %d\n", hdr->ih_comp); + SHOW_BOOT_PROGRESS (-7); + return 1; + } + printf ("OK\n"); + SHOW_BOOT_PROGRESS (7); + + switch (hdr->ih_type) { + case IH_TYPE_STANDALONE: + appl = (int (*)(cmd_tbl_t *, int, int, char *[]))ntohl(hdr->ih_ep); + if (iflag) + enable_interrupts(); + + (*appl)(cmdtp, flag, argc-1, &argv[1]); + break; + case IH_TYPE_KERNEL: + case IH_TYPE_MULTI: + /* handled below */ + break; + default: + if (iflag) + enable_interrupts(); + printf ("Can't boot image type %d\n", hdr->ih_type); + SHOW_BOOT_PROGRESS (-8); + return 1; + } + SHOW_BOOT_PROGRESS (8); + + switch (hdr->ih_os) { + default: /* handled by (original) Linux case */ + case IH_OS_LINUX: + do_bootm_linux (cmdtp, flag, argc, argv, + addr, len_ptr, verify); + break; + case IH_OS_NETBSD: + do_bootm_netbsd (cmdtp, flag, argc, argv, + addr, len_ptr, verify); + break; +#if (CONFIG_COMMANDS & CFG_CMD_ELF) + case IH_OS_VXWORKS: + do_bootm_vxworks (cmdtp, flag, argc, argv, + addr, len_ptr, verify); + break; + case IH_OS_QNX: + do_bootm_qnxelf (cmdtp, flag, argc, argv, + addr, len_ptr, verify); + break; +#endif /* CFG_CMD_ELF */ + } + + SHOW_BOOT_PROGRESS (-9); +#ifdef DEBUG + printf ("\n## Control returned to monitor - resetting...\n"); + do_reset (cmdtp, flag, argc, argv); +#endif + return 1; +} + +#ifndef CONFIG_ARM +static void +do_bootm_linux (cmd_tbl_t *cmdtp, int flag, + int argc, char *argv[], + ulong addr, + ulong *len_ptr, + int verify) +{ + DECLARE_GLOBAL_DATA_PTR; + + ulong sp; + ulong len, checksum; + ulong initrd_start, initrd_end; + ulong cmd_start, cmd_end; + ulong initrd_high; + ulong data; + char *cmdline; + char *s; + bd_t *kbd; + void (*kernel)(bd_t *, ulong, ulong, ulong, ulong); + image_header_t *hdr = &header; + + if ((s = getenv ("initrd_high")) != NULL) { + /* a value of "no" or a similar string will act like 0, + * turning the "load high" feature off. This is intentional. + */ + initrd_high = simple_strtoul(s, NULL, 16); + } else { /* not set, no restrictions to load high */ + initrd_high = ~0; + } + + /* + * Booting a (Linux) kernel image + * + * Allocate space for command line and board info - the + * address should be as high as possible within the reach of + * the kernel (see CFG_BOOTMAPSZ settings), but in unused + * memory, which means far enough below the current stack + * pointer. + */ + + asm( "mr %0,1": "=r"(sp) : ); + +#ifdef DEBUG + printf ("## Current stack ends at 0x%08lX ", sp); +#endif + sp -= 2048; /* just to be sure */ + if (sp > CFG_BOOTMAPSZ) + sp = CFG_BOOTMAPSZ; + sp &= ~0xF; + +#ifdef DEBUG + printf ("=> set upper limit to 0x%08lX\n", sp); +#endif + cmdline = (char *)((sp - CFG_BARGSIZE) & ~0xF); + kbd = (bd_t *)(((ulong)cmdline - sizeof(bd_t)) & ~0xF); + + if ((s = getenv("bootargs")) == NULL) + s = ""; + + strcpy (cmdline, s); + + cmd_start = (ulong)&cmdline[0]; + cmd_end = cmd_start + strlen(cmdline); + + *kbd = *(gd->bd); + +#ifdef DEBUG + printf ("## cmdline at 0x%08lX ... 0x%08lX\n", cmd_start, cmd_end); + + do_bdinfo (NULL, 0, 0, NULL); +#endif + + if ((s = getenv ("clocks_in_mhz")) != NULL) { + /* convert all clock information to MHz */ + kbd->bi_intfreq /= 1000000L; + kbd->bi_busfreq /= 1000000L; +#if defined(CONFIG_8260) + kbd->bi_cpmfreq /= 1000000L; + kbd->bi_brgfreq /= 1000000L; + kbd->bi_sccfreq /= 1000000L; + kbd->bi_vco /= 1000000L; +#endif /* CONFIG_8260 */ + } + + kernel = (void (*)(bd_t *, ulong, ulong, ulong, ulong))hdr->ih_ep; + + /* + * Check if there is an initrd image + */ + if (argc >= 3) { + SHOW_BOOT_PROGRESS (9); + + addr = simple_strtoul(argv[2], NULL, 16); + + printf ("## Loading RAMDisk Image at %08lx ...\n", addr); + + /* Copy header so we can blank CRC field for re-calculation */ + memmove (&header, (char *)addr, sizeof(image_header_t)); + + if (hdr->ih_magic != IH_MAGIC) { + printf ("Bad Magic Number\n"); + SHOW_BOOT_PROGRESS (-10); + do_reset (cmdtp, flag, argc, argv); + } + + data = (ulong)&header; + len = sizeof(image_header_t); + + checksum = hdr->ih_hcrc; + hdr->ih_hcrc = 0; + + if (crc32 (0, (char *)data, len) != checksum) { + printf ("Bad Header Checksum\n"); + SHOW_BOOT_PROGRESS (-11); + do_reset (cmdtp, flag, argc, argv); + } + + SHOW_BOOT_PROGRESS (10); + + print_image_hdr (hdr); + + data = addr + sizeof(image_header_t); + len = hdr->ih_size; + + if (verify) { + ulong csum = 0; +#if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG) + ulong cdata = data, edata = cdata + len; +#endif /* CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG */ + + printf (" Verifying Checksum ... "); + +#if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG) + + while (cdata < edata) { + ulong chunk = edata - cdata; + + if (chunk > CHUNKSZ) + chunk = CHUNKSZ; + csum = crc32 (csum, (char *)cdata, chunk); + cdata += chunk; + + WATCHDOG_RESET(); + } +#else /* !(CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG) */ + csum = crc32 (0, (char *)data, len); +#endif /* CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG */ + + if (csum != hdr->ih_dcrc) { + printf ("Bad Data CRC\n"); + SHOW_BOOT_PROGRESS (-12); + do_reset (cmdtp, flag, argc, argv); + } + printf ("OK\n"); + } + + SHOW_BOOT_PROGRESS (11); + + if ((hdr->ih_os != IH_OS_LINUX) || + (hdr->ih_arch != IH_CPU_PPC) || + (hdr->ih_type != IH_TYPE_RAMDISK) ) { + printf ("No Linux PPC Ramdisk Image\n"); + SHOW_BOOT_PROGRESS (-13); + do_reset (cmdtp, flag, argc, argv); + } + + /* + * Now check if we have a multifile image + */ + } else if ((hdr->ih_type==IH_TYPE_MULTI) && (len_ptr[1])) { + u_long tail = ntohl(len_ptr[0]) % 4; + int i; + + SHOW_BOOT_PROGRESS (13); + + /* skip kernel length and terminator */ + data = (ulong)(&len_ptr[2]); + /* skip any additional image length fields */ + for (i=1; len_ptr[i]; ++i) + data += 4; + /* add kernel length, and align */ + data += ntohl(len_ptr[0]); + if (tail) { + data += 4 - tail; + } + + len = ntohl(len_ptr[1]); + + } else { + /* + * no initrd image + */ + SHOW_BOOT_PROGRESS (14); + + len = data = 0; + } + +#ifdef DEBUG + if (!data) { + printf ("No initrd\n"); + } +#endif + + if (data) { + initrd_start = (ulong)kbd - len; + initrd_start &= ~(4096 - 1); /* align on page */ + + if (initrd_high) { + ulong nsp; + + /* + * the inital ramdisk does not need to be within + * CFG_BOOTMAPSZ as it is not accessed until after + * the mm system is initialised. + * + * do the stack bottom calculation again and see if + * the initrd will fit just below the monitor stack + * bottom without overwriting the area allocated + * above for command line args and board info. + */ + asm( "mr %0,1": "=r"(nsp) : ); + nsp -= 2048; /* just to be sure */ + nsp &= ~0xF; + if (nsp > initrd_high) /* limit as specified */ + nsp = initrd_high; + nsp -= len; + nsp &= ~(4096 - 1); /* align on page */ + if (nsp >= sp) + initrd_start = nsp; + } + + SHOW_BOOT_PROGRESS (12); +#ifdef DEBUG + printf ("## initrd at 0x%08lX ... 0x%08lX (len=%ld=0x%lX)\n", + data, data + len - 1, len, len); +#endif + initrd_end = initrd_start + len; + printf (" Loading Ramdisk to %08lx, end %08lx ... ", + initrd_start, initrd_end); +#if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG) + { + size_t l = len; + void *to = (void *)initrd_start; + void *from = (void *)data; + + while (l > 0) { + size_t tail = (l > CHUNKSZ) ? CHUNKSZ : l; + WATCHDOG_RESET(); + memmove (to, from, tail); + to += tail; + from += tail; + l -= tail; + } + } +#else /* !(CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG) */ + memmove ((void *)initrd_start, (void *)data, len); +#endif /* CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG */ + printf ("OK\n"); + } else { + initrd_start = 0; + initrd_end = 0; + } + +#ifdef DEBUG + printf ("## Transferring control to Linux (at address %08lx) ...\n", + (ulong)kernel); +#endif + SHOW_BOOT_PROGRESS (15); + +#ifdef CFG_INIT_RAM_LOCK + unlock_ram_in_cache(); +#endif + /* + * Linux Kernel Parameters: + * r3: ptr to board info data + * r4: initrd_start or 0 if no initrd + * r5: initrd_end - unused if r4 is 0 + * r6: Start of command line string + * r7: End of command line string + */ + (*kernel) (kbd, initrd_start, initrd_end, cmd_start, cmd_end); +} +#endif /* CONFIG_ARM */ + +static void +do_bootm_netbsd (cmd_tbl_t *cmdtp, int flag, + int argc, char *argv[], + ulong addr, + ulong *len_ptr, + int verify) +{ + DECLARE_GLOBAL_DATA_PTR; + + image_header_t *hdr = &header; + + void (*loader)(bd_t *, image_header_t *, char *, char *); + image_header_t *img_addr; + char *consdev; + char *cmdline; + + + /* + * Booting a (NetBSD) kernel image + * + * This process is pretty similar to a standalone application: + * The (first part of an multi-) image must be a stage-2 loader, + * which in turn is responsible for loading & invoking the actual + * kernel. The only differences are the parameters being passed: + * besides the board info strucure, the loader expects a command + * line, the name of the console device, and (optionally) the + * address of the original image header. + */ + + img_addr = 0; + if ((hdr->ih_type==IH_TYPE_MULTI) && (len_ptr[1])) + img_addr = (image_header_t *) addr; + + + consdev = ""; +#if defined (CONFIG_8xx_CONS_SMC1) + consdev = "smc1"; +#elif defined (CONFIG_8xx_CONS_SMC2) + consdev = "smc2"; +#elif defined (CONFIG_8xx_CONS_SCC2) + consdev = "scc2"; +#elif defined (CONFIG_8xx_CONS_SCC3) + consdev = "scc3"; +#endif + + if (argc > 2) { + ulong len; + int i; + + for (i=2, len=0 ; i<argc ; i+=1) + len += strlen (argv[i]) + 1; + cmdline = malloc (len); + + for (i=2, len=0 ; i<argc ; i+=1) { + if (i > 2) + cmdline[len++] = ' '; + strcpy (&cmdline[len], argv[i]); + len += strlen (argv[i]); + } + } else if ((cmdline = getenv("bootargs")) == NULL) { + cmdline = ""; + } + + loader = (void (*)(bd_t *, image_header_t *, char *, char *)) hdr->ih_ep; + + printf ("## Transferring control to NetBSD stage-2 loader (at address %08lx) ...\n", + (ulong)loader); + + SHOW_BOOT_PROGRESS (15); + + /* + * NetBSD Stage-2 Loader Parameters: + * r3: ptr to board info data + * r4: image address + * r5: console device + * r6: boot args string + */ + (*loader) (gd->bd, img_addr, consdev, cmdline); +} + +#if (CONFIG_COMMANDS & CFG_CMD_BOOTD) +int do_bootd (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) +{ + int rcode = 0; +#ifndef CFG_HUSH_PARSER + if (run_command (getenv ("bootcmd"), flag) < 0) rcode = 1; +#else + if (parse_string_outer(getenv("bootcmd"), + FLAG_PARSE_SEMICOLON | FLAG_EXIT_FROM_LOOP) != 0 ) rcode = 1; +#endif + return rcode; +} +#endif + +#if (CONFIG_COMMANDS & CFG_CMD_IMI) +int do_iminfo ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) +{ + int arg; + ulong addr; + int rcode=0; + + if (argc < 2) { + return image_info (load_addr); + } + + for (arg=1; arg <argc; ++arg) { + addr = simple_strtoul(argv[arg], NULL, 16); + if (image_info (addr) != 0) rcode = 1; + } + return rcode; +} + +static int image_info (ulong addr) +{ + ulong data, len, checksum; + image_header_t *hdr = &header; + + printf ("\n## Checking Image at %08lx ...\n", addr); + + /* Copy header so we can blank CRC field for re-calculation */ + memmove (&header, (char *)addr, sizeof(image_header_t)); + + if (ntohl(hdr->ih_magic) != IH_MAGIC) { + printf (" Bad Magic Number\n"); + return 1; + } + + data = (ulong)&header; + len = sizeof(image_header_t); + + checksum = ntohl(hdr->ih_hcrc); + hdr->ih_hcrc = 0; + + if (crc32 (0, (char *)data, len) != checksum) { + printf (" Bad Header Checksum\n"); + return 1; + } + + /* for multi-file images we need the data part, too */ + print_image_hdr ((image_header_t *)addr); + + data = addr + sizeof(image_header_t); + len = ntohl(hdr->ih_size); + + printf (" Verifying Checksum ... "); + if (crc32 (0, (char *)data, len) != ntohl(hdr->ih_dcrc)) { + printf (" Bad Data CRC\n"); + return 1; + } + printf ("OK\n"); + return 0; +} +#endif /* CFG_CMD_IMI */ + +void +print_image_hdr (image_header_t *hdr) +{ +#if (CONFIG_COMMANDS & CFG_CMD_DATE) || defined(CONFIG_TIMESTAMP) + time_t timestamp = (time_t)ntohl(hdr->ih_time); + struct rtc_time tm; +#endif + + printf (" Image Name: %.*s\n", IH_NMLEN, hdr->ih_name); +#if (CONFIG_COMMANDS & CFG_CMD_DATE) || defined(CONFIG_TIMESTAMP) + to_tm (timestamp, &tm); + printf (" Created: %4d-%02d-%02d %2d:%02d:%02d UTC\n", + tm.tm_year, tm.tm_mon, tm.tm_mday, + tm.tm_hour, tm.tm_min, tm.tm_sec); +#endif /* CFG_CMD_DATE, CONFIG_TIMESTAMP */ + printf (" Image Type: "); print_type(hdr); printf ("\n"); + printf (" Data Size: %d Bytes = ", ntohl(hdr->ih_size)); + print_size (ntohl(hdr->ih_size), "\n"); + printf (" Load Address: %08x\n", ntohl(hdr->ih_load)); + printf (" Entry Point: %08x\n", ntohl(hdr->ih_ep)); + + if (hdr->ih_type == IH_TYPE_MULTI) { + int i; + ulong len; + ulong *len_ptr = (ulong *)((ulong)hdr + sizeof(image_header_t)); + + printf (" Contents:\n"); + for (i=0; (len = ntohl(*len_ptr)); ++i, ++len_ptr) { + printf (" Image %d: %8ld Bytes = ", i, len); + print_size (len, "\n"); + } + } +} + + +static void +print_type (image_header_t *hdr) +{ + char *os, *arch, *type, *comp; + + switch (hdr->ih_os) { + case IH_OS_INVALID: os = "Invalid OS"; break; + case IH_OS_NETBSD: os = "NetBSD"; break; + case IH_OS_LINUX: os = "Linux"; break; + case IH_OS_VXWORKS: os = "VxWorks"; break; + case IH_OS_QNX: os = "QNX"; break; + case IH_OS_U_BOOT: os = "U-Boot"; break; + default: os = "Unknown OS"; break; + } + + switch (hdr->ih_arch) { + case IH_CPU_INVALID: arch = "Invalid CPU"; break; + case IH_CPU_ALPHA: arch = "Alpha"; break; + case IH_CPU_ARM: arch = "ARM"; break; + case IH_CPU_I386: arch = "Intel x86"; break; + case IH_CPU_IA64: arch = "IA64"; break; + case IH_CPU_MIPS: arch = "MIPS"; break; + case IH_CPU_MIPS64: arch = "MIPS 64 Bit"; break; + case IH_CPU_PPC: arch = "PowerPC"; break; + case IH_CPU_S390: arch = "IBM S390"; break; + case IH_CPU_SH: arch = "SuperH"; break; + case IH_CPU_SPARC: arch = "SPARC"; break; + case IH_CPU_SPARC64: arch = "SPARC 64 Bit"; break; + default: arch = "Unknown Architecture"; break; + } + + switch (hdr->ih_type) { + case IH_TYPE_INVALID: type = "Invalid Image"; break; + case IH_TYPE_STANDALONE:type = "Standalone Program"; break; + case IH_TYPE_KERNEL: type = "Kernel Image"; break; + case IH_TYPE_RAMDISK: type = "RAMDisk Image"; break; + case IH_TYPE_MULTI: type = "Multi-File Image"; break; + case IH_TYPE_FIRMWARE: type = "Firmware"; break; + case IH_TYPE_SCRIPT: type = "Script"; break; + default: type = "Unknown Image"; break; + } + + switch (hdr->ih_comp) { + case IH_COMP_NONE: comp = "uncompressed"; break; + case IH_COMP_GZIP: comp = "gzip compressed"; break; + case IH_COMP_BZIP2: comp = "bzip2 compressed"; break; + default: comp = "unknown compression"; break; + } + + printf ("%s %s %s (%s)", arch, os, type, comp); +} + +#define ZALLOC_ALIGNMENT 16 + +static void *zalloc(void *x, unsigned items, unsigned size) +{ + void *p; + + size *= items; + size = (size + ZALLOC_ALIGNMENT - 1) & ~(ZALLOC_ALIGNMENT - 1); + + p = malloc (size); + + return (p); +} + +static void zfree(void *x, void *addr, unsigned nb) +{ + free (addr); +} + +#define HEAD_CRC 2 +#define EXTRA_FIELD 4 +#define ORIG_NAME 8 +#define COMMENT 0x10 +#define RESERVED 0xe0 + +#define DEFLATED 8 + +int gunzip(void *dst, int dstlen, unsigned char *src, int *lenp) +{ + z_stream s; + int r, i, flags; + + /* skip header */ + i = 10; + flags = src[3]; + if (src[2] != DEFLATED || (flags & RESERVED) != 0) { + printf ("Error: Bad gzipped data\n"); + return (-1); + } + if ((flags & EXTRA_FIELD) != 0) + i = 12 + src[10] + (src[11] << 8); + if ((flags & ORIG_NAME) != 0) + while (src[i++] != 0) + ; + if ((flags & COMMENT) != 0) + while (src[i++] != 0) + ; + if ((flags & HEAD_CRC) != 0) + i += 2; + if (i >= *lenp) { + printf ("Error: gunzip out of data in header\n"); + return (-1); + } + + s.zalloc = zalloc; + s.zfree = zfree; +#if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG) + s.outcb = (cb_func)WATCHDOG_RESET; +#else + s.outcb = Z_NULL; +#endif /* CONFIG_HW_WATCHDOG */ + + r = inflateInit2(&s, -MAX_WBITS); + if (r != Z_OK) { + printf ("Error: inflateInit2() returned %d\n", r); + return (-1); + } + s.next_in = src + i; + s.avail_in = *lenp - i; + s.next_out = dst; + s.avail_out = dstlen; + r = inflate(&s, Z_FINISH); + if (r != Z_OK && r != Z_STREAM_END) { + printf ("Error: inflate() returned %d\n", r); + return (-1); + } + *lenp = s.next_out - (unsigned char *) dst; + inflateEnd(&s); + + return (0); +} + +#if (CONFIG_COMMANDS & CFG_CMD_ELF) +static void +do_bootm_vxworks (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[], + ulong addr, ulong *len_ptr, int verify) +{ + image_header_t *hdr = &header; + char str[80]; + + sprintf(str, "%x", hdr->ih_ep); /* write entry-point into string */ + setenv("loadaddr", str); + do_bootvx(cmdtp, 0, 0, NULL); +} + +static void +do_bootm_qnxelf (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[], + ulong addr, ulong *len_ptr, int verify) +{ + image_header_t *hdr = &header; + char *local_args[2]; + char str[16]; + + sprintf(str, "%x", hdr->ih_ep); /* write entry-point into string */ + local_args[0] = argv[0]; + local_args[1] = str; /* and provide it via the arguments */ + do_bootelf(cmdtp, 0, 2, local_args); +} +#endif /* CFG_CMD_ELF */ diff --git a/common/console.c b/common/console.c new file mode 100644 index 0000000..f99dfcc --- /dev/null +++ b/common/console.c @@ -0,0 +1,532 @@ +/* + * (C) Copyright 2000 + * Paolo Scaffardi, AIRVENT SAM s.p.a - RIMINI(ITALY), arsenio@tin.it + * + * 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 <common.h> +#include <stdarg.h> +#include <malloc.h> +#include <console.h> +#include <syscall.h> + +void **syscall_tbl; + +#ifdef CFG_CONSOLE_IS_IN_ENV +/* + * if overwrite_console returns 1, the stdin, stderr and stdout + * are switched to the serial port, else the settings in the + * environment are used + */ +#ifdef CFG_CONSOLE_OVERWRITE_ROUTINE +extern int overwrite_console (void); +#else +int overwrite_console (void) +{ + return (0); +} +#endif /* CFG_CONSOLE_OVERWRITE_ROUTINE */ + +#endif /* CFG_CONSOLE_IS_IN_ENV */ + +static int console_setfile (int file, device_t * dev) +{ + int error = 0; + + if (dev == NULL) + return -1; + + switch (file) { + case stdin: + case stdout: + case stderr: + /* Start new device */ + if (dev->start) { + error = dev->start (); + /* If it's not started dont use it */ + if (error < 0) + break; + } + + /* Assign the new device (leaving the existing one started) */ + stdio_devices[file] = dev; + + /* + * Update monitor functions + * (to use the console stuff by other applications) + */ + switch (file) { + case stdin: + syscall_tbl[SYSCALL_GETC] = dev->getc; + syscall_tbl[SYSCALL_TSTC] = dev->tstc; + break; + case stdout: + syscall_tbl[SYSCALL_PUTC] = dev->putc; + syscall_tbl[SYSCALL_PUTS] = dev->puts; + syscall_tbl[SYSCALL_PRINTF] = printf; + break; + } + break; + + default: /* Invalid file ID */ + error = -1; + } + return error; +} + +/** U-Boot INITIAL CONSOLE-NOT COMPATIBLE FUNCTIONS *************************/ + +void serial_printf (const char *fmt, ...) +{ + va_list args; + uint i; + char printbuffer[CFG_PBSIZE]; + + va_start (args, fmt); + + /* For this to work, printbuffer must be larger than + * anything we ever want to print. + */ + i = vsprintf (printbuffer, fmt, args); + va_end (args); + + serial_puts (printbuffer); +} + +int fgetc (int file) +{ + if (file < MAX_FILES) + return stdio_devices[file]->getc (); + + return -1; +} + +int ftstc (int file) +{ + if (file < MAX_FILES) + return stdio_devices[file]->tstc (); + + return -1; +} + +void fputc (int file, const char c) +{ + if (file < MAX_FILES) + stdio_devices[file]->putc (c); +} + +void fputs (int file, const char *s) +{ + if (file < MAX_FILES) + stdio_devices[file]->puts (s); +} + +void fprintf (int file, const char *fmt, ...) +{ + va_list args; + uint i; + char printbuffer[CFG_PBSIZE]; + + va_start (args, fmt); + + /* For this to work, printbuffer must be larger than + * anything we ever want to print. + */ + i = vsprintf (printbuffer, fmt, args); + va_end (args); + + /* Send to desired file */ + fputs (file, printbuffer); +} + +/** U-Boot INITIAL CONSOLE-COMPATIBLE FUNCTION *****************************/ + +int getc (void) +{ + DECLARE_GLOBAL_DATA_PTR; + + if (gd->flags & GD_FLG_DEVINIT) { + /* Get from the standard input */ + return fgetc (stdin); + } + + /* Send directly to the handler */ + return serial_getc (); +} + +int tstc (void) +{ + DECLARE_GLOBAL_DATA_PTR; + + if (gd->flags & GD_FLG_DEVINIT) { + /* Test the standard input */ + return ftstc (stdin); + } + + /* Send directly to the handler */ + return serial_tstc (); +} + +void putc (const char c) +{ + DECLARE_GLOBAL_DATA_PTR; + + if (gd->flags & GD_FLG_DEVINIT) { + /* Send to the standard output */ + fputc (stdout, c); + } else { + /* Send directly to the handler */ + serial_putc (c); + } +} + +void puts (const char *s) +{ + DECLARE_GLOBAL_DATA_PTR; + + if (gd->flags & GD_FLG_DEVINIT) { + /* Send to the standard output */ + fputs (stdout, s); + } else { + /* Send directly to the handler */ + serial_puts (s); + } +} + +void printf (const char *fmt, ...) +{ + va_list args; + uint i; + char printbuffer[CFG_PBSIZE]; + + va_start (args, fmt); + + /* For this to work, printbuffer must be larger than + * anything we ever want to print. + */ + i = vsprintf (printbuffer, fmt, args); + va_end (args); + + /* Print the string */ + puts (printbuffer); +} + +/* test if ctrl-c was pressed */ +static int ctrlc_disabled = 0; /* see disable_ctrl() */ +static int ctrlc_was_pressed = 0; +int ctrlc (void) +{ + DECLARE_GLOBAL_DATA_PTR; + + if (!ctrlc_disabled && gd->have_console) { + if (tstc ()) { + switch (getc ()) { + case 0x03: /* ^C - Control C */ + ctrlc_was_pressed = 1; + return 1; + default: + break; + } + } + } + return 0; +} + +/* pass 1 to disable ctrlc() checking, 0 to enable. + * returns previous state + */ +int disable_ctrlc (int disable) +{ + int prev = ctrlc_disabled; /* save previous state */ + + ctrlc_disabled = disable; + return prev; +} + +int had_ctrlc (void) +{ + return ctrlc_was_pressed; +} + +void clear_ctrlc (void) +{ + ctrlc_was_pressed = 0; +} + +#ifdef CONFIG_MODEM_SUPPORT_DEBUG +char screen[1024]; +char *cursor = screen; +int once = 0; +inline void dbg(const char *fmt, ...) +{ + va_list args; + uint i; + char printbuffer[CFG_PBSIZE]; + + if (!once) { + memset(screen, 0, sizeof(screen)); + once++; + } + + va_start(args, fmt); + + /* For this to work, printbuffer must be larger than + * anything we ever want to print. + */ + i = vsprintf(printbuffer, fmt, args); + va_end(args); + + if ((screen + sizeof(screen) - 1 - cursor) < strlen(printbuffer)+1) { + memset(screen, 0, sizeof(screen)); + cursor = screen; + } + sprintf(cursor, printbuffer); + cursor += strlen(printbuffer); + +} +#else +inline void dbg(const char *fmt, ...) +{ +} +#endif + +/** U-Boot INIT FUNCTIONS *************************************************/ + +int console_assign (int file, char *devname) +{ + int flag, i; + + /* Check for valid file */ + switch (file) { + case stdin: + flag = DEV_FLAGS_INPUT; + break; + case stdout: + case stderr: + flag = DEV_FLAGS_OUTPUT; + break; + default: + return -1; + } + + /* Check for valid device name */ + + for (i = 1; i <= ListNumItems (devlist); i++) { + device_t *dev = ListGetPtrToItem (devlist, i); + + if (strcmp (devname, dev->name) == 0) { + if (dev->flags & flag) + return console_setfile (file, dev); + + return -1; + } + } + + return -1; +} + +/* Called before relocation - use serial functions */ +int console_init_f (void) +{ + DECLARE_GLOBAL_DATA_PTR; + + gd->have_console = 1; + return (0); +} + +#ifdef CFG_CONSOLE_IS_IN_ENV +/* search a device */ +device_t *search_device (int flags, char *name) +{ + int i, items; + device_t *dev = NULL; + + items = ListNumItems (devlist); + if (name == NULL) + return dev; + + for (i = 1; i <= items; i++) { + dev = ListGetPtrToItem (devlist, i); + if ((dev->flags & flags) && (strcmp (name, dev->name) == 0)) { + break; + } + } + return dev; +} +#endif /* CFG_CONSOLE_IS_IN_ENV */ + +#ifdef CFG_CONSOLE_IS_IN_ENV +/* Called after the relocation - use desired console functions */ +int console_init_r (void) +{ + char *stdinname, *stdoutname, *stderrname; + device_t *inputdev = NULL, *outputdev = NULL, *errdev = NULL; + + /* set default handlers at first */ + syscall_tbl[SYSCALL_GETC] = serial_getc; + syscall_tbl[SYSCALL_TSTC] = serial_tstc; + syscall_tbl[SYSCALL_PUTC] = serial_putc; + syscall_tbl[SYSCALL_PUTS] = serial_puts; + syscall_tbl[SYSCALL_PRINTF] = serial_printf; + + /* stdin stdout and stderr are in environment */ + /* scan for it */ + stdinname = getenv ("stdin"); + stdoutname = getenv ("stdout"); + stderrname = getenv ("stderr"); + + if (overwrite_console () == 0) { /* if not overwritten by config switch */ + inputdev = search_device (DEV_FLAGS_INPUT, stdinname); + outputdev = search_device (DEV_FLAGS_OUTPUT, stdoutname); + errdev = search_device (DEV_FLAGS_OUTPUT, stderrname); + } + /* if the devices are overwritten or not found, use default device */ + if (inputdev == NULL) { + inputdev = search_device (DEV_FLAGS_INPUT, "serial"); + } + if (outputdev == NULL) { + outputdev = search_device (DEV_FLAGS_OUTPUT, "serial"); + } + if (errdev == NULL) { + errdev = search_device (DEV_FLAGS_OUTPUT, "serial"); + } + /* Initializes output console first */ + if (outputdev != NULL) { + console_setfile (stdout, outputdev); + } + if (errdev != NULL) { + console_setfile (stderr, errdev); + } + if (inputdev != NULL) { + console_setfile (stdin, inputdev); + } + +#ifndef CFG_CONSOLE_INFO_QUIET + /* Print information */ + printf ("In: "); + if (stdio_devices[stdin] == NULL) { + printf ("No input devices available!\n"); + } else { + printf ("%s\n", stdio_devices[stdin]->name); + } + + printf ("Out: "); + if (stdio_devices[stdout] == NULL) { + printf ("No output devices available!\n"); + } else { + printf ("%s\n", stdio_devices[stdout]->name); + } + + printf ("Err: "); + if (stdio_devices[stderr] == NULL) { + printf ("No error devices available!\n"); + } else { + printf ("%s\n", stdio_devices[stderr]->name); + } +#endif /* CFG_CONSOLE_INFO_QUIET */ + +#ifdef CFG_CONSOLE_ENV_OVERWRITE + /* set the environment variables (will overwrite previous env settings) */ + for (i = 0; i < 3; i++) { + setenv (stdio_names[i], stdio_devices[i]->name); + } +#endif /* CFG_CONSOLE_ENV_OVERWRITE */ + +#if 0 + /* If nothing usable installed, use only the initial console */ + if ((stdio_devices[stdin] == NULL) && (stdio_devices[stdout] == NULL)) + return (0); +#endif + return (0); +} + +#else /* CFG_CONSOLE_IS_IN_ENV */ + +/* Called after the relocation - use desired console functions */ +int console_init_r (void) +{ + device_t *inputdev = NULL, *outputdev = NULL; + int i, items = ListNumItems (devlist); + + /* Scan devices looking for input and output devices */ + for (i = 1; + (i <= items) && ((inputdev == NULL) || (outputdev == NULL)); + i++ + ) { + device_t *dev = ListGetPtrToItem (devlist, i); + + if ((dev->flags & DEV_FLAGS_INPUT) && (inputdev == NULL)) { + inputdev = dev; + } + if ((dev->flags & DEV_FLAGS_OUTPUT) && (outputdev == NULL)) { + outputdev = dev; + } + } + + /* Initializes output console first */ + if (outputdev != NULL) { + console_setfile (stdout, outputdev); + console_setfile (stderr, outputdev); + } + + /* Initializes input console */ + if (inputdev != NULL) { + console_setfile (stdin, inputdev); + } + +#ifndef CFG_CONSOLE_INFO_QUIET + /* Print informations */ + printf ("In: "); + if (stdio_devices[stdin] == NULL) { + printf ("No input devices available!\n"); + } else { + printf ("%s\n", stdio_devices[stdin]->name); + } + + printf ("Out: "); + if (stdio_devices[stdout] == NULL) { + printf ("No output devices available!\n"); + } else { + printf ("%s\n", stdio_devices[stdout]->name); + } + + printf ("Err: "); + if (stdio_devices[stderr] == NULL) { + printf ("No error devices available!\n"); + } else { + printf ("%s\n", stdio_devices[stderr]->name); + } +#endif /* CFG_CONSOLE_INFO_QUIET */ + + /* Setting environment variables */ + for (i = 0; i < 3; i++) { + setenv (stdio_names[i], stdio_devices[i]->name); + } + +#if 0 + /* If nothing usable installed, use only the initial console */ + if ((stdio_devices[stdin] == NULL) && (stdio_devices[stdout] == NULL)) + return (0); +#endif + + return (0); +} + +#endif /* CFG_CONSOLE_IS_IN_ENV */ |