diff options
Diffstat (limited to 'common/cmd_bootm.c.orig')
| -rw-r--r-- | common/cmd_bootm.c.orig | 1379 |
1 files changed, 1379 insertions, 0 deletions
diff --git a/common/cmd_bootm.c.orig b/common/cmd_bootm.c.orig new file mode 100644 index 0000000..ab6ccbb --- /dev/null +++ b/common/cmd_bootm.c.orig @@ -0,0 +1,1379 @@ +/* + * (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 <image.h> +#include <malloc.h> +#include <zlib.h> +#include <bzlib.h> +#include <environment.h> +#include <asm/byteorder.h> + + /*cmd_boot.c*/ + extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]); + +#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 + +#ifdef CONFIG_LOGBUFFER +#include <logbuff.h> +#endif + +#ifdef CONFIG_HAS_DATAFLASH +#include <dataflash.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 *, unsigned long *); + +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 + +#if (CONFIG_COMMANDS & CFG_CMD_IMLS) +#include <flash.h> +extern flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips */ +static int do_imls (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]); +#endif + +static void print_type (image_header_t *hdr); + +#ifdef __I386__ +image_header_t *fake_header(image_header_t *hdr, void *ptr, int size); +#endif + +/* + * 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' */ + +#ifdef DEBUG +extern int do_bdinfo ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]); +#endif + +#ifdef CONFIG_PPC +static boot_os_Fcn do_bootm_linux; +#else +extern boot_os_Fcn do_bootm_linux; +#endif +#ifdef CONFIG_SILENT_CONSOLE +static void fixup_silent_linux (void); +#endif +static boot_os_Fcn do_bootm_netbsd; +static boot_os_Fcn do_bootm_rtems; +#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 */ +#if defined(CONFIG_ARTOS) && defined(CONFIG_PPC) +static boot_os_Fcn do_bootm_artos; +#endif +#ifdef CONFIG_LYNXKDI +static boot_os_Fcn do_bootm_lynxkdi; +extern void lynxkdi_boot( image_header_t * ); +#endif + +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; + uint unc_len = 0x400000; + int i, verify; + char *name, *s; + int (*appl)(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 */ +#ifdef CONFIG_HAS_DATAFLASH + if (addr_dataflash(addr)){ + read_dataflash(addr, sizeof(image_header_t), (char *)&header); + } else +#endif + memmove (&header, (char *)addr, sizeof(image_header_t)); + + if (ntohl(hdr->ih_magic) != IH_MAGIC) { +#ifdef __I386__ /* correct image format not implemented yet - fake it */ + if (fake_header(hdr, (void*)addr, -1) != NULL) { + /* to compensate for the addition below */ + addr -= sizeof(image_header_t); + /* turnof verify, + * fake_header() does not fake the data crc + */ + verify = 0; + } else +#endif /* __I386__ */ + { + puts ("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) { + puts ("Bad Header Checksum\n"); + SHOW_BOOT_PROGRESS (-2); + return 1; + } + SHOW_BOOT_PROGRESS (3); + +#ifdef CONFIG_HAS_DATAFLASH + if (addr_dataflash(addr)){ + len = ntohl(hdr->ih_size) + sizeof(image_header_t); + read_dataflash(addr, len, (char *)CFG_LOAD_ADDR); + addr = CFG_LOAD_ADDR; + } +#endif + + + /* 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) { + puts (" Verifying Checksum ... "); + if (crc32 (0, (char *)data, len) != ntohl(hdr->ih_dcrc)) { + printf ("Bad Data CRC\n"); + SHOW_BOOT_PROGRESS (-3); + return 1; + } + puts ("OK\n"); + } + SHOW_BOOT_PROGRESS (4); + + len_ptr = (ulong *)data; + +#if defined(__PPC__) + if (hdr->ih_arch != IH_CPU_PPC) +#elif defined(__ARM__) + if (hdr->ih_arch != IH_CPU_ARM) +#elif defined(__I386__) + if (hdr->ih_arch != IH_CPU_I386) +#elif defined(__mips__) + if (hdr->ih_arch != IH_CPU_MIPS) +#elif defined(__nios__) + if (hdr->ih_arch != IH_CPU_NIOS) +#elif defined(__M68K__) + if (hdr->ih_arch != IH_CPU_M68K) +#elif defined(__microblaze__) + if (hdr->ih_arch != IH_CPU_MICROBLAZE) +#elif defined(__nios2__) + if (hdr->ih_arch != IH_CPU_NIOS2) +#else +# error Unknown CPU type +#endif + { + printf ("Unsupported Architecture 0x%x\n", hdr->ih_arch); + SHOW_BOOT_PROGRESS (-4); + return 1; + } + SHOW_BOOT_PROGRESS (5); + + switch (hdr->ih_type) { + case IH_TYPE_STANDALONE: + name = "Standalone Application"; + /* A second argument overwrites the load address */ + if (argc > 2) { + hdr->ih_load = htonl(simple_strtoul(argv[2], NULL, 16)); + } + 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(); + +#ifdef CONFIG_AMIGAONEG3SE + /* + * We've possible left the caches enabled during + * bios emulation, so turn them off again + */ + icache_disable(); + invalidate_l1_instruction_cache(); + flush_data_cache(); + dcache_disable(); +#endif + + switch (hdr->ih_comp) { + case IH_COMP_NONE: + if(ntohl(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), unc_len, + (uchar *)data, &len) != 0) { + puts ("GUNZIP ERROR - must RESET board to recover\n"); + SHOW_BOOT_PROGRESS (-6); + do_reset (cmdtp, flag, argc, argv); + } + break; +#ifdef CONFIG_BZIP2 + case IH_COMP_BZIP2: + printf (" Uncompressing %s ... ", name); + /* + * If we've got less than 4 MB of malloc() space, + * use slower decompression algorithm which requires + * at most 2300 KB of memory. + */ + i = BZ2_bzBuffToBuffDecompress ((char*)ntohl(hdr->ih_load), + &unc_len, (char *)data, len, + CFG_MALLOC_LEN < (4096 * 1024), 0); + if (i != BZ_OK) { + printf ("BUNZIP2 ERROR %d - must RESET board to recover\n", i); + SHOW_BOOT_PROGRESS (-6); + udelay(100000); + do_reset (cmdtp, flag, argc, argv); + } + break; +#endif /* CONFIG_BZIP2 */ + default: + if (iflag) + enable_interrupts(); + printf ("Unimplemented compression type %d\n", hdr->ih_comp); + SHOW_BOOT_PROGRESS (-7); + return 1; + } + puts ("OK\n"); + SHOW_BOOT_PROGRESS (7); + + switch (hdr->ih_type) { + case IH_TYPE_STANDALONE: + if (iflag) + enable_interrupts(); + + /* load (and uncompress), but don't start if "autostart" + * is set to "no" + */ + if (((s = getenv("autostart")) != NULL) && (strcmp(s,"no") == 0)) { + char buf[32]; + sprintf(buf, "%lX", len); + setenv("filesize", buf); + return 0; + } + appl = (int (*)(int, char *[]))ntohl(hdr->ih_ep); + (*appl)(argc-1, &argv[1]); + return 0; + 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: +#ifdef CONFIG_SILENT_CONSOLE + fixup_silent_linux(); +#endif + 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; + +#ifdef CONFIG_LYNXKDI + case IH_OS_LYNXOS: + do_bootm_lynxkdi (cmdtp, flag, argc, argv, + addr, len_ptr, verify); + break; +#endif + + case IH_OS_RTEMS: + do_bootm_rtems (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 */ +#ifdef CONFIG_ARTOS + case IH_OS_ARTOS: + do_bootm_artos (cmdtp, flag, argc, argv, + addr, len_ptr, verify); + break; +#endif + } + + SHOW_BOOT_PROGRESS (-9); +#ifdef DEBUG + puts ("\n## Control returned to monitor - resetting...\n"); + do_reset (cmdtp, flag, argc, argv); +#endif + return 1; +} + +U_BOOT_CMD( + bootm, CFG_MAXARGS, 1, do_bootm, + "bootm - boot application image from memory\n", + "[addr [arg ...]]\n - boot application image stored in memory\n" + "\tpassing arguments 'arg ...'; when booting a Linux kernel,\n" + "\t'arg' can be the address of an initrd image\n" +); + +#ifdef CONFIG_SILENT_CONSOLE +static void +fixup_silent_linux () +{ + DECLARE_GLOBAL_DATA_PTR; + char buf[256], *start, *end; + char *cmdline = getenv ("bootargs"); + + /* Only fix cmdline when requested */ + if (!(gd->flags & GD_FLG_SILENT)) + return; + + debug ("before silent fix-up: %s\n", cmdline); + if (cmdline) { + if ((start = strstr (cmdline, "console=")) != NULL) { + end = strchr (start, ' '); + strncpy (buf, cmdline, (start - cmdline + 8)); + if (end) + strcpy (buf + (start - cmdline + 8), end); + else + buf[start - cmdline + 8] = '\0'; + } else { + strcpy (buf, cmdline); + strcat (buf, " console="); + } + } else { + strcpy (buf, "console="); + } + + setenv ("bootargs", buf); + debug ("after silent fix-up: %s\n", buf); +} +#endif /* CONFIG_SILENT_CONSOLE */ + +#ifdef CONFIG_PPC +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; + int initrd_copy_to_ram = 1; + 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); + if (initrd_high == ~0) + initrd_copy_to_ram = 0; + } else { /* not set, no restrictions to load high */ + initrd_high = ~0; + } + +#ifdef CONFIG_LOGBUFFER + kbd=gd->bd; + /* Prevent initrd from overwriting logbuffer */ + if (initrd_high < (kbd->bi_memsize-LOGBUFF_LEN-LOGBUFF_OVERHEAD)) + initrd_high = kbd->bi_memsize-LOGBUFF_LEN-LOGBUFF_OVERHEAD; + debug ("## Logbuffer at 0x%08lX ", kbd->bi_memsize-LOGBUFF_LEN); +#endif + + /* + * 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) : ); + + debug ("## Current stack ends at 0x%08lX ", sp); + + sp -= 2048; /* just to be sure */ + if (sp > CFG_BOOTMAPSZ) + sp = CFG_BOOTMAPSZ; + sp &= ~0xF; + + debug ("=> set upper limit to 0x%08lX\n", sp); + + 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_MPC8220) + kbd->bi_inpfreq /= 1000000L; + kbd->bi_pcifreq /= 1000000L; + kbd->bi_pevfreq /= 1000000L; + kbd->bi_flbfreq /= 1000000L; + kbd->bi_vcofreq /= 1000000L; +#endif +#if defined(CONFIG_CPM2) + kbd->bi_cpmfreq /= 1000000L; + kbd->bi_brgfreq /= 1000000L; + kbd->bi_sccfreq /= 1000000L; + kbd->bi_vco /= 1000000L; +#endif +#if defined(CONFIG_MPC5xxx) + kbd->bi_ipbfreq /= 1000000L; + kbd->bi_pcifreq /= 1000000L; +#endif /* CONFIG_MPC5xxx */ + } + + 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) { + puts ("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) { + puts ("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 */ + + puts (" 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) { + puts ("Bad Data CRC\n"); + SHOW_BOOT_PROGRESS (-12); + do_reset (cmdtp, flag, argc, argv); + } + puts ("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) ) { + puts ("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; + } + + if (!data) { + debug ("No initrd\n"); + } + + if (data) { + if (!initrd_copy_to_ram) { /* zero-copy ramdisk support */ + initrd_start = data; + initrd_end = initrd_start + len; + } else { + 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); + + debug ("## initrd at 0x%08lX ... 0x%08lX (len=%ld=0x%lX)\n", + data, data + len - 1, len, len); + + 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 */ + puts ("OK\n"); + } + } else { + initrd_start = 0; + initrd_end = 0; + } + + + debug ("## Transferring control to Linux (at address %08lx) ...\n", + (ulong)kernel); + + SHOW_BOOT_PROGRESS (15); + +#if defined(CFG_INIT_RAM_LOCK) && !defined(CONFIG_E500) + 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_PPC */ + +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 defined(CONFIG_ARTOS) && defined(CONFIG_PPC) + +/* Function that returns a character from the environment */ +extern uchar (*env_get_char)(int); + +static void +do_bootm_artos (cmd_tbl_t *cmdtp, int flag, + int argc, char *argv[], + ulong addr, + ulong *len_ptr, + int verify) +{ + DECLARE_GLOBAL_DATA_PTR; + ulong top; + char *s, *cmdline; + char **fwenv, **ss; + int i, j, nxt, len, envno, envsz; + bd_t *kbd; + void (*entry)(bd_t *bd, char *cmdline, char **fwenv, ulong top); + image_header_t *hdr = &header; + + /* + * Booting an ARTOS kernel image + application + */ + + /* this used to be the top of memory, but was wrong... */ +#ifdef CONFIG_PPC + /* get stack pointer */ + asm volatile ("mr %0,1" : "=r"(top) ); +#endif + debug ("## Current stack ends at 0x%08lX ", top); + + top -= 2048; /* just to be sure */ + if (top > CFG_BOOTMAPSZ) + top = CFG_BOOTMAPSZ; + top &= ~0xF; + + debug ("=> set upper limit to 0x%08lX\n", top); + + /* first check the artos specific boot args, then the linux args*/ + if ((s = getenv("abootargs")) == NULL && (s = getenv("bootargs")) == NULL) + s = ""; + + /* get length of cmdline, and place it */ + len = strlen(s); + top = (top - (len + 1)) & ~0xF; + cmdline = (char *)top; + debug ("## cmdline at 0x%08lX ", top); + strcpy(cmdline, s); + + /* copy bdinfo */ + top = (top - sizeof(bd_t)) & ~0xF; + debug ("## bd at 0x%08lX ", top); + kbd = (bd_t *)top; + memcpy(kbd, gd->bd, sizeof(bd_t)); + + /* first find number of env entries, and their size */ + envno = 0; + envsz = 0; + for (i = 0; env_get_char(i) != '\0'; i = nxt + 1) { + for (nxt = i; env_get_char(nxt) != '\0'; ++nxt) + ; + envno++; + envsz += (nxt - i) + 1; /* plus trailing zero */ + } + envno++; /* plus the terminating zero */ + debug ("## %u envvars total size %u ", envno, envsz); + + top = (top - sizeof(char **)*envno) & ~0xF; + fwenv = (char **)top; + debug ("## fwenv at 0x%08lX ", top); + + top = (top - envsz) & ~0xF; + s = (char *)top; + ss = fwenv; + + /* now copy them */ + for (i = 0; env_get_char(i) != '\0'; i = nxt + 1) { + for (nxt = i; env_get_char(nxt) != '\0'; ++nxt) + ; + *ss++ = s; + for (j = i; j < nxt; ++j) + *s++ = env_get_char(j); + *s++ = '\0'; + } + *ss++ = NULL; /* terminate */ + + entry = (void (*)(bd_t *, char *, char **, ulong))ntohl(hdr->ih_ep); + (*entry)(kbd, cmdline, fwenv, top); +} +#endif + + +#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; +} + +U_BOOT_CMD( + boot, 1, 1, do_bootd, + "boot - boot default, i.e., run 'bootcmd'\n", + NULL +); + +/* keep old command name "bootd" for backward compatibility */ +U_BOOT_CMD( + bootd, 1, 1, do_bootd, + "bootd - boot default, i.e., run 'bootcmd'\n", + NULL +); + +#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) { + puts (" 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) { + puts (" 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); + + puts (" Verifying Checksum ... "); + if (crc32 (0, (char *)data, len) != ntohl(hdr->ih_dcrc)) { + puts (" Bad Data CRC\n"); + return 1; + } + puts ("OK\n"); + return 0; +} + +U_BOOT_CMD( + iminfo, CFG_MAXARGS, 1, do_iminfo, + "iminfo - print header information for application image\n", + "addr [addr ...]\n" + " - print header information for application image starting at\n" + " address 'addr' in memory; this includes verification of the\n" + " image contents (magic number, header and payload checksums)\n" +); + +#endif /* CFG_CMD_IMI */ + +#if (CONFIG_COMMANDS & CFG_CMD_IMLS) +/*----------------------------------------------------------------------- + * List all images found in flash. + */ +int do_imls (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) +{ + flash_info_t *info; + int i, j; + image_header_t *hdr; + ulong data, len, checksum; + + for (i=0, info=&flash_info[0]; i<CFG_MAX_FLASH_BANKS; ++i, ++info) { + if (info->flash_id == FLASH_UNKNOWN) + goto next_bank; + for (j=0; j<CFG_MAX_FLASH_SECT; ++j) { + + if (!(hdr=(image_header_t *)info->start[j]) || + (ntohl(hdr->ih_magic) != IH_MAGIC)) + goto next_sector; + + /* Copy header so we can blank CRC field for re-calculation */ + memmove (&header, (char *)hdr, sizeof(image_header_t)); + + checksum = ntohl(header.ih_hcrc); + header.ih_hcrc = 0; + + if (crc32 (0, (char *)&header, sizeof(image_header_t)) + != checksum) + goto next_sector; + + printf ("Image at %08lX:\n", (ulong)hdr); + print_image_hdr( hdr ); + + data = (ulong)hdr + sizeof(image_header_t); + len = ntohl(hdr->ih_size); + + puts (" Verifying Checksum ... "); + if (crc32 (0, (char *)data, len) != ntohl(hdr->ih_dcrc)) { + puts (" Bad Data CRC\n"); + } + puts ("OK\n"); +next_sector: ; + } +next_bank: ; + } + + return (0); +} + +U_BOOT_CMD( + imls, 1, 1, do_imls, + "imls - list all images found in flash\n", + "\n" + " - Prints information about all images found at sector\n" + " boundaries in flash.\n" +); +#endif /* CFG_CMD_IMLS */ + +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 */ + puts (" Image Type: "); print_type(hdr); + printf ("\n Data Size: %d Bytes = ", ntohl(hdr->ih_size)); + print_size (ntohl(hdr->ih_size), "\n"); + printf (" Load Address: %08x\n" + " Entry Point: %08x\n", + ntohl(hdr->ih_load), 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)); + + puts (" 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; + case IH_OS_RTEMS: os = "RTEMS"; break; +#ifdef CONFIG_ARTOS + case IH_OS_ARTOS: os = "ARTOS"; break; +#endif +#ifdef CONFIG_LYNXKDI + case IH_OS_LYNXOS: os = "LynxOS"; break; +#endif + 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; + case IH_CPU_M68K: arch = "M68K"; break; + case IH_CPU_MICROBLAZE: arch = "Microblaze"; break; + case IH_CPU_NIOS: arch = "Nios"; break; + case IH_CPU_NIOS2: arch = "Nios-II"; 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, unsigned long *lenp) +{ + z_stream s; + int r, i, flags; + + /* skip header */ + i = 10; + flags = src[3]; + if (src[2] != DEFLATED || (flags & RESERVED) != 0) { + puts ("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) { + puts ("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); +} + +#ifdef CONFIG_BZIP2 +void bz_internal_error(int errcode) +{ + printf ("BZIP2 internal error %d\n", errcode); +} +#endif /* CONFIG_BZIP2 */ + +static void +do_bootm_rtems (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 (*entry_point)(bd_t *); + + entry_point = (void (*)(bd_t *)) hdr->ih_ep; + + printf ("## Transferring control to RTEMS (at address %08lx) ...\n", + (ulong)entry_point); + + SHOW_BOOT_PROGRESS (15); + + /* + * RTEMS Parameters: + * r3: ptr to board info data + */ + + (*entry_point ) ( gd->bd ); +} + +#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 */ + +#ifdef CONFIG_LYNXKDI +static void +do_bootm_lynxkdi (cmd_tbl_t *cmdtp, int flag, + int argc, char *argv[], + ulong addr, + ulong *len_ptr, + int verify) +{ + lynxkdi_boot( &header ); +} + +#endif /* CONFIG_LYNXKDI */ |