+++ /dev/null
-/*
- * (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 */
projects / kernel / u-boot.git / commitdiff