| /* |
| * (C) Copyright 2000-2006 |
| * 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 |
| */ |
| |
| #define DEBUG |
| |
| /* |
| * 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> |
| |
| #if defined(CONFIG_TIMESTAMP) || defined(CONFIG_CMD_DATE) |
| #include <rtc.h> |
| #endif |
| |
| #ifdef CFG_HUSH_PARSER |
| #include <hush.h> |
| #endif |
| |
| #ifdef CONFIG_HAS_DATAFLASH |
| #include <dataflash.h> |
| #endif |
| |
| DECLARE_GLOBAL_DATA_PTR; |
| |
| extern int gunzip (void *dst, int dstlen, unsigned char *src, unsigned long *lenp); |
| #ifndef CFG_BOOTM_LEN |
| #define CFG_BOOTM_LEN 0x800000 /* use 8MByte as default max gunzip size */ |
| #endif |
| |
| #ifdef CONFIG_BZIP2 |
| extern void bz_internal_error(int); |
| #endif |
| |
| #if defined(CONFIG_CMD_IMI) |
| static int image_info (unsigned long addr); |
| #endif |
| |
| #if defined(CONFIG_CMD_IMLS) |
| #include <flash.h> |
| extern flash_info_t flash_info[]; /* info for FLASH chips */ |
| static int do_imls (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]); |
| #endif |
| |
| #ifdef CONFIG_SILENT_CONSOLE |
| static void fixup_silent_linux (void); |
| #endif |
| |
| static void print_type (image_header_t *hdr); |
| extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]); |
| |
| /* |
| * 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_fn (cmd_tbl_t *cmdtp, int flag, |
| int argc, char *argv[], |
| image_header_t *hdr, /* of image to boot */ |
| int verify); /* getenv("verify")[0] != 'n' */ |
| |
| extern boot_os_fn do_bootm_linux; |
| static boot_os_fn do_bootm_netbsd; |
| #if defined(CONFIG_LYNXKDI) |
| static boot_os_fn do_bootm_lynxkdi; |
| extern void lynxkdi_boot (image_header_t *); |
| #endif |
| static boot_os_fn do_bootm_rtems; |
| #if defined(CONFIG_CMD_ELF) |
| static boot_os_fn do_bootm_vxworks; |
| static boot_os_fn 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 |
| #if defined(CONFIG_ARTOS) && defined(CONFIG_PPC) |
| extern uchar (*env_get_char)(int); /* Returns a character from the environment */ |
| static boot_os_fn do_bootm_artos; |
| #endif |
| |
| ulong load_addr = CFG_LOAD_ADDR; /* Default Load Address */ |
| |
| |
| /*******************************************************************/ |
| /* bootm - boot application image from image in memory */ |
| /*******************************************************************/ |
| int do_bootm (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) |
| { |
| ulong iflag; |
| const char *type_name; |
| uint unc_len = CFG_BOOTM_LEN; |
| int verify = getenv_verify(); |
| |
| image_header_t *hdr; |
| ulong img_addr; |
| ulong os_data, os_len; |
| |
| ulong image_start, image_end; |
| ulong load_start, load_end; |
| |
| |
| if (argc < 2) { |
| img_addr = load_addr; |
| } else { |
| img_addr = simple_strtoul(argv[1], NULL, 16); |
| } |
| |
| show_boot_progress (1); |
| printf ("## Booting image at %08lx ...\n", img_addr); |
| |
| #ifdef CONFIG_HAS_DATAFLASH |
| if (addr_dataflash (img_addr)){ |
| hdr = (image_header_t *)CFG_LOAD_ADDR; |
| read_dataflash (img_addr, image_get_header_size (), (char *)hdr); |
| } else |
| #endif |
| hdr = (image_header_t *)img_addr; |
| |
| if (!image_check_magic(hdr)) { |
| puts ("Bad Magic Number\n"); |
| show_boot_progress (-1); |
| return 1; |
| } |
| show_boot_progress (2); |
| |
| if (!image_check_hcrc (hdr)) { |
| puts ("Bad Header Checksum\n"); |
| show_boot_progress (-2); |
| return 1; |
| } |
| show_boot_progress (3); |
| |
| #ifdef CONFIG_HAS_DATAFLASH |
| if (addr_dataflash (img_addr)) |
| read_dataflash (img_addr + image_get_header_size (), |
| image_get_data_size (hdr), |
| (char *)image_get_data (hdr)); |
| #endif |
| |
| /* uImage is in a system RAM, pointed to by hdr */ |
| print_image_hdr (hdr); |
| |
| if (verify) { |
| puts (" Verifying Checksum ... "); |
| if (!image_check_dcrc (hdr)) { |
| printf ("Bad Data CRC\n"); |
| show_boot_progress (-3); |
| return 1; |
| } |
| puts ("OK\n"); |
| } |
| show_boot_progress (4); |
| |
| if (!image_check_target_arch (hdr)) { |
| printf ("Unsupported Architecture 0x%x\n", image_get_arch (hdr)); |
| show_boot_progress (-4); |
| return 1; |
| } |
| show_boot_progress (5); |
| |
| switch (image_get_type (hdr)) { |
| case IH_TYPE_KERNEL: |
| os_data = image_get_data (hdr); |
| os_len = image_get_data_size (hdr); |
| break; |
| case IH_TYPE_MULTI: |
| image_multi_getimg (hdr, 0, &os_data, &os_len); |
| 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 |
| |
| type_name = image_get_type_name (image_get_type (hdr)); |
| |
| image_start = (ulong)hdr; |
| image_end = image_get_image_end (hdr); |
| load_start = image_get_load (hdr); |
| load_end = 0; |
| |
| switch (image_get_comp (hdr)) { |
| case IH_COMP_NONE: |
| if (image_get_load (hdr) == img_addr) { |
| printf (" XIP %s ... ", type_name); |
| } else { |
| printf (" Loading %s ... ", type_name); |
| |
| memmove_wd ((void *)image_get_load (hdr), |
| (void *)os_data, os_len, CHUNKSZ); |
| |
| load_end = load_start + os_len; |
| puts("OK\n"); |
| } |
| break; |
| case IH_COMP_GZIP: |
| printf (" Uncompressing %s ... ", type_name); |
| if (gunzip ((void *)image_get_load (hdr), unc_len, |
| (uchar *)os_data, &os_len) != 0) { |
| puts ("GUNZIP ERROR - must RESET board to recover\n"); |
| show_boot_progress (-6); |
| do_reset (cmdtp, flag, argc, argv); |
| } |
| |
| load_end = load_start + os_len; |
| break; |
| #ifdef CONFIG_BZIP2 |
| case IH_COMP_BZIP2: |
| printf (" Uncompressing %s ... ", type_name); |
| /* |
| * If we've got less than 4 MB of malloc() space, |
| * use slower decompression algorithm which requires |
| * at most 2300 KB of memory. |
| */ |
| int i = BZ2_bzBuffToBuffDecompress ((char*)image_get_load (hdr), |
| &unc_len, (char *)os_data, os_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); |
| do_reset (cmdtp, flag, argc, argv); |
| } |
| |
| load_end = load_start + unc_len; |
| break; |
| #endif /* CONFIG_BZIP2 */ |
| default: |
| if (iflag) |
| enable_interrupts(); |
| printf ("Unimplemented compression type %d\n", image_get_comp (hdr)); |
| show_boot_progress (-7); |
| return 1; |
| } |
| puts ("OK\n"); |
| show_boot_progress (7); |
| |
| if ((load_start < image_end) && (load_end > image_start)) { |
| debug ("image_start = 0x%lX, image_end = 0x%lx\n", image_start, image_end); |
| debug ("load_start = 0x%lx, load_end = 0x%lx\n", load_start, load_end); |
| |
| puts ("ERROR: image overwritten - must RESET the board to recover.\n"); |
| do_reset (cmdtp, flag, argc, argv); |
| } |
| |
| show_boot_progress (8); |
| |
| switch (image_get_os (hdr)) { |
| 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, hdr, verify); |
| break; |
| |
| case IH_OS_NETBSD: |
| do_bootm_netbsd (cmdtp, flag, argc, argv, hdr, verify); |
| break; |
| |
| #ifdef CONFIG_LYNXKDI |
| case IH_OS_LYNXOS: |
| do_bootm_lynxkdi (cmdtp, flag, argc, argv, hdr, verify); |
| break; |
| #endif |
| |
| case IH_OS_RTEMS: |
| do_bootm_rtems (cmdtp, flag, argc, argv, hdr, verify); |
| break; |
| |
| #if defined(CONFIG_CMD_ELF) |
| case IH_OS_VXWORKS: |
| do_bootm_vxworks (cmdtp, flag, argc, argv, hdr, verify); |
| break; |
| |
| case IH_OS_QNX: |
| do_bootm_qnxelf (cmdtp, flag, argc, argv, hdr, verify); |
| break; |
| #endif |
| |
| #ifdef CONFIG_ARTOS |
| case IH_OS_ARTOS: |
| do_bootm_artos (cmdtp, flag, argc, argv, hdr, 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" |
| #if defined(CONFIG_OF_LIBFDT) |
| "\tWhen booting a Linux kernel which requires a flat device-tree\n" |
| "\ta third argument is required which is the address of the\n" |
| "\tdevice-tree blob. To boot that kernel without an initrd image,\n" |
| "\tuse a '-' for the second argument. If you do not pass a third\n" |
| "\ta bd_info struct will be passed instead\n" |
| #endif |
| ); |
| |
| /*******************************************************************/ |
| /* bootd - boot default image */ |
| /*******************************************************************/ |
| #if defined(CONFIG_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 |
| |
| |
| /*******************************************************************/ |
| /* iminfo - print header info for a requested image */ |
| /*******************************************************************/ |
| #if defined(CONFIG_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) |
| { |
| image_header_t *hdr = (image_header_t *)addr; |
| |
| printf ("\n## Checking Image at %08lx ...\n", addr); |
| |
| if (!image_check_magic (hdr)) { |
| puts (" Bad Magic Number\n"); |
| return 1; |
| } |
| |
| if (!image_check_hcrc (hdr)) { |
| puts (" Bad Header Checksum\n"); |
| return 1; |
| } |
| |
| print_image_hdr (hdr); |
| |
| puts (" Verifying Checksum ... "); |
| if (!image_check_dcrc (hdr)) { |
| 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 |
| |
| |
| /*******************************************************************/ |
| /* imls - list all images found in flash */ |
| /*******************************************************************/ |
| #if defined(CONFIG_CMD_IMLS) |
| int do_imls (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) |
| { |
| flash_info_t *info; |
| int i, j; |
| image_header_t *hdr; |
| |
| 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 < info->sector_count; ++j) { |
| |
| hdr = (image_header_t *)info->start[j]; |
| |
| if (!hdr || !image_check_magic (hdr)) |
| goto next_sector; |
| |
| if (!image_check_hcrc (hdr)) |
| goto next_sector; |
| |
| printf ("Image at %08lX:\n", (ulong)hdr); |
| print_image_hdr (hdr); |
| |
| puts (" Verifying Checksum ... "); |
| if (!image_check_dcrc (hdr)) { |
| puts ("Bad Data CRC\n"); |
| } else { |
| 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 |
| |
| /*******************************************************************/ |
| /* */ |
| /*******************************************************************/ |
| void print_image_hdr (image_header_t *hdr) |
| { |
| #if defined(CONFIG_TIMESTAMP) || defined(CONFIG_CMD_DATE) |
| time_t timestamp = (time_t)image_get_time (hdr); |
| struct rtc_time tm; |
| #endif |
| |
| printf (" Image Name: %.*s\n", IH_NMLEN, image_get_name (hdr)); |
| |
| #if defined(CONFIG_TIMESTAMP) || defined(CONFIG_CMD_DATE) |
| 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 |
| puts (" Image Type: "); |
| print_type (hdr); |
| |
| printf ("\n Data Size: %d Bytes = ", image_get_data_size (hdr)); |
| print_size (image_get_data_size (hdr), "\n"); |
| printf (" Load Address: %08x\n" |
| " Entry Point: %08x\n", |
| image_get_load (hdr), image_get_ep (hdr)); |
| |
| if (image_check_type (hdr, IH_TYPE_MULTI)) { |
| int i; |
| ulong data, len; |
| ulong count = image_multi_count (hdr); |
| |
| puts (" Contents:\n"); |
| for (i = 0; i < count; i++) { |
| image_multi_getimg (hdr, i, &data, &len); |
| printf (" Image %d: %8ld Bytes = ", i, len); |
| print_size (len, "\n"); |
| } |
| } |
| } |
| |
| static void print_type (image_header_t *hdr) |
| { |
| const char *os, *arch, *type, *comp; |
| |
| os = image_get_os_name (image_get_os (hdr)); |
| arch = image_get_arch_name (image_get_arch (hdr)); |
| type = image_get_type_name (image_get_type (hdr)); |
| comp = image_get_comp_name (image_get_comp (hdr)); |
| |
| printf ("%s %s %s (%s)", arch, os, type, comp); |
| } |
| |
| #ifdef CONFIG_SILENT_CONSOLE |
| static void fixup_silent_linux () |
| { |
| 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 */ |
| |
| |
| /*******************************************************************/ |
| /* OS booting routines */ |
| /*******************************************************************/ |
| |
| static void do_bootm_netbsd (cmd_tbl_t *cmdtp, int flag, |
| int argc, char *argv[], |
| image_header_t *hdr, int verify) |
| { |
| void (*loader)(bd_t *, image_header_t *, char *, char *); |
| image_header_t *img_addr; |
| ulong kernel_data, kernel_len; |
| 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 (image_check_type (hdr, IH_TYPE_MULTI)) { |
| image_multi_getimg (hdr, 1, &kernel_data, &kernel_len); |
| if (kernel_len) |
| img_addr = hdr; |
| } |
| |
| 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 *))image_get_ep (hdr); |
| |
| 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); |
| } |
| |
| #ifdef CONFIG_LYNXKDI |
| static void do_bootm_lynxkdi (cmd_tbl_t *cmdtp, int flag, |
| int argc, char *argv[], |
| image_header_t *hdr, int verify) |
| { |
| lynxkdi_boot (hdr); |
| } |
| #endif /* CONFIG_LYNXKDI */ |
| |
| static void do_bootm_rtems (cmd_tbl_t *cmdtp, int flag, |
| int argc, char *argv[], |
| image_header_t *hdr, int verify) |
| { |
| void (*entry_point)(bd_t *); |
| |
| entry_point = (void (*)(bd_t *))image_get_ep (hdr); |
| |
| 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 defined(CONFIG_CMD_ELF) |
| static void do_bootm_vxworks (cmd_tbl_t *cmdtp, int flag, |
| int argc, char *argv[], |
| image_header_t *hdr, int verify) |
| { |
| char str[80]; |
| |
| sprintf(str, "%x", image_get_ep (hdr)); /* 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[], |
| image_header_t *hdr, int verify) |
| { |
| char *local_args[2]; |
| char str[16]; |
| |
| sprintf(str, "%x", image_get_ep (hdr)); /* 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 |
| |
| #if defined(CONFIG_ARTOS) && defined(CONFIG_PPC) |
| static void do_bootm_artos (cmd_tbl_t *cmdtp, int flag, |
| int argc, char *argv[], |
| image_header_t *hdr, int verify) |
| { |
| 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); |
| |
| /* |
| * 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))image_get_ep (hdr); |
| (*entry) (kbd, cmdline, fwenv, top); |
| } |
| #endif |