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author | wdenk <wdenk> | 2003-12-06 23:55:10 +0000 |
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committer | wdenk <wdenk> | 2003-12-06 23:55:10 +0000 |
commit | 5779d8d985d95104ad74332f5fa3cb6c67645509 (patch) | |
tree | fe9c2bacd2e097b24c4968ae8e929bd28d74c167 /lib_arm/armlinux.c | |
parent | 8bf3b005ddee3eee179ec961e1c2bd0693e3b79d (diff) | |
download | u-boot-imx-5779d8d985d95104ad74332f5fa3cb6c67645509.zip u-boot-imx-5779d8d985d95104ad74332f5fa3cb6c67645509.tar.gz u-boot-imx-5779d8d985d95104ad74332f5fa3cb6c67645509.tar.bz2 |
* Patch by Nicolas Lacressonni�re, 12 Nov 2003:
update for for Atmel AT91RM9200DK development kit:
- support for environment variables in DataFlash
- Atmel DataFlash AT45DB1282 support
* Patch by Jeff Carr, 11 Nov 2003:
add support for new version of 8270 processors
* Patches by George G. Davis, 05 Nov 2003:
- only pass the ARM linux initrd tag to the kernel when an initrd
is actually present
- update omap1510inn configuration file
Diffstat (limited to 'lib_arm/armlinux.c')
-rw-r--r-- | lib_arm/armlinux.c | 404 |
1 files changed, 195 insertions, 209 deletions
diff --git a/lib_arm/armlinux.c b/lib_arm/armlinux.c index 68e12d3..0b3d01e 100644 --- a/lib_arm/armlinux.c +++ b/lib_arm/armlinux.c @@ -41,20 +41,24 @@ extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]); defined (CONFIG_CMDLINE_TAG) || \ defined (CONFIG_INITRD_TAG) || \ defined (CONFIG_VFD) -static void setup_start_tag(bd_t *bd); +static void setup_start_tag (bd_t *bd); + # ifdef CONFIG_SETUP_MEMORY_TAGS -static void setup_memory_tags(bd_t *bd); +static void setup_memory_tags (bd_t *bd); # endif -static void setup_commandline_tag(bd_t *bd, char *commandline); +static void setup_commandline_tag (bd_t *bd, char *commandline); + #if 0 -static void setup_ramdisk_tag(bd_t *bd); +static void setup_ramdisk_tag (bd_t *bd); #endif # ifdef CONFIG_INITRD_TAG -static void setup_initrd_tag(bd_t *bd, ulong initrd_start, ulong initrd_end); +static void setup_initrd_tag (bd_t *bd, ulong initrd_start, + ulong initrd_end); # endif -static void setup_end_tag(bd_t *bd); +static void setup_end_tag (bd_t *bd); + # if defined (CONFIG_VFD) -static void setup_videolfb_tag(gd_t *gd); +static void setup_videolfb_tag (gd_t *gd); # endif @@ -68,180 +72,179 @@ static struct tag *params; # define SHOW_BOOT_PROGRESS(arg) #endif -extern image_header_t header; /* from cmd_bootm.c */ +extern image_header_t header; /* from cmd_bootm.c */ -void do_bootm_linux(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[], - ulong addr, ulong *len_ptr, int verify) +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 len = 0, checksum; - ulong initrd_start, initrd_end; - ulong data; - void (*theKernel)(int zero, int arch); - image_header_t *hdr = &header; - bd_t *bd = gd->bd; + ulong len = 0, checksum; + ulong initrd_start, initrd_end; + ulong data; + void (*theKernel) (int zero, int arch); + image_header_t *hdr = &header; + bd_t *bd = gd->bd; + #ifdef CONFIG_CMDLINE_TAG - char *commandline = getenv("bootargs"); + char *commandline = getenv ("bootargs"); #endif - theKernel = (void (*)(int, int))ntohl(hdr->ih_ep); + theKernel = (void (*)(int, int)) ntohl (hdr->ih_ep); - /* - * Check if there is an initrd image - */ - if (argc >= 3) { - SHOW_BOOT_PROGRESS (9); + /* + * Check if there is an initrd image + */ + if (argc >= 3) { + SHOW_BOOT_PROGRESS (9); - addr = simple_strtoul(argv[2], NULL, 16); + addr = simple_strtoul (argv[2], NULL, 16); - printf ("## Loading Ramdisk Image at %08lx ...\n", addr); + printf ("## Loading Ramdisk Image at %08lx ...\n", addr); - /* Copy header so we can blank CRC field for re-calculation */ + /* 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 + if (addr_dataflash (addr)) { + read_dataflash (addr, sizeof (image_header_t), + (char *) &header); + } else #endif - memcpy (&header, (char *)addr, sizeof(image_header_t)); + memcpy (&header, (char *) addr, + sizeof (image_header_t)); - if (ntohl(hdr->ih_magic) != IH_MAGIC) { - printf ("Bad Magic Number\n"); - SHOW_BOOT_PROGRESS (-10); - do_reset (cmdtp, flag, argc, argv); - } + if (ntohl (hdr->ih_magic) != IH_MAGIC) { + printf ("Bad Magic Number\n"); + SHOW_BOOT_PROGRESS (-10); + do_reset (cmdtp, flag, argc, argv); + } - data = (ulong)&header; - len = sizeof(image_header_t); + data = (ulong) & header; + len = sizeof (image_header_t); - checksum = ntohl(hdr->ih_hcrc); - hdr->ih_hcrc = 0; + checksum = ntohl (hdr->ih_hcrc); + hdr->ih_hcrc = 0; - if (crc32 (0, (char *)data, len) != checksum) { - printf ("Bad Header Checksum\n"); - SHOW_BOOT_PROGRESS (-11); - do_reset (cmdtp, flag, argc, argv); - } + if (crc32 (0, (char *) data, len) != checksum) { + printf ("Bad Header Checksum\n"); + SHOW_BOOT_PROGRESS (-11); + do_reset (cmdtp, flag, argc, argv); + } - SHOW_BOOT_PROGRESS (10); + SHOW_BOOT_PROGRESS (10); - print_image_hdr (hdr); + print_image_hdr (hdr); - data = addr + sizeof(image_header_t); - len = ntohl(hdr->ih_size); + data = addr + sizeof (image_header_t); + len = ntohl (hdr->ih_size); #ifdef CONFIG_HAS_DATAFLASH - if (addr_dataflash(addr)){ - read_dataflash(data, len, (char *)CFG_LOAD_ADDR); - data = CFG_LOAD_ADDR; - } + if (addr_dataflash (addr)) { + read_dataflash (data, len, (char *) CFG_LOAD_ADDR); + data = CFG_LOAD_ADDR; + } #endif - if (verify) { - ulong csum = 0; - - printf (" Verifying Checksum ... "); - csum = crc32 (0, (char *)data, len); - if (csum != ntohl(hdr->ih_dcrc)) { - printf ("Bad Data CRC\n"); - SHOW_BOOT_PROGRESS (-12); - do_reset (cmdtp, flag, argc, argv); - } - printf ("OK\n"); - } - - SHOW_BOOT_PROGRESS (11); - - if ((hdr->ih_os != IH_OS_LINUX) || - (hdr->ih_arch != IH_CPU_ARM) || - (hdr->ih_type != IH_TYPE_RAMDISK) ) { - printf ("No Linux ARM 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])) { - ulong 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; + if (verify) { + ulong csum = 0; + + printf (" Verifying Checksum ... "); + csum = crc32 (0, (char *) data, len); + if (csum != ntohl (hdr->ih_dcrc)) { + printf ("Bad Data CRC\n"); + SHOW_BOOT_PROGRESS (-12); + do_reset (cmdtp, flag, argc, argv); + } + printf ("OK\n"); + } + + SHOW_BOOT_PROGRESS (11); + + if ((hdr->ih_os != IH_OS_LINUX) || + (hdr->ih_arch != IH_CPU_ARM) || + (hdr->ih_type != IH_TYPE_RAMDISK)) { + printf ("No Linux ARM 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])) { + ulong 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; } - len = ntohl(len_ptr[1]); - - } else { - /* - * no initrd image - */ - SHOW_BOOT_PROGRESS (14); - - data = 0; - } - #ifdef DEBUG - if (!data) { - printf ("No initrd\n"); - } + if (!data) { + printf ("No initrd\n"); + } #endif - if (data) { - initrd_start = data; - initrd_end = initrd_start + len; - } else { - initrd_start = 0; - initrd_end = 0; - } + if (data) { + initrd_start = data; + initrd_end = initrd_start + len; + } else { + initrd_start = 0; + initrd_end = 0; + } - SHOW_BOOT_PROGRESS (15); + SHOW_BOOT_PROGRESS (15); -#ifdef DEBUG - printf ("## Transferring control to Linux (at address %08lx) ...\n", - (ulong)theKernel); -#endif + debug ("## Transferring control to Linux (at address %08lx) ...\n", + (ulong) theKernel); #if defined (CONFIG_SETUP_MEMORY_TAGS) || \ defined (CONFIG_CMDLINE_TAG) || \ defined (CONFIG_INITRD_TAG) || \ defined (CONFIG_VFD) - setup_start_tag(bd); + setup_start_tag (bd); #ifdef CONFIG_SETUP_MEMORY_TAGS - setup_memory_tags(bd); + setup_memory_tags (bd); #endif #ifdef CONFIG_CMDLINE_TAG - setup_commandline_tag(bd, commandline); + setup_commandline_tag (bd, commandline); #endif #ifdef CONFIG_INITRD_TAG - setup_initrd_tag(bd, initrd_start, initrd_end); -#endif -#if 0 - setup_ramdisk_tag(bd); + if (initrd_start && initrd_end) + setup_initrd_tag (bd, initrd_start, initrd_end); #endif #if defined (CONFIG_VFD) - setup_videolfb_tag((gd_t *)gd); + setup_videolfb_tag ((gd_t *) gd); #endif - setup_end_tag(bd); + setup_end_tag (bd); #endif - /* we assume that the kernel is in place */ - printf("\nStarting kernel ...\n\n"); + /* we assume that the kernel is in place */ + printf ("\nStarting kernel ...\n\n"); - cleanup_before_linux(); + cleanup_before_linux (); - theKernel(0, bd->bi_arch_number); + theKernel (0, bd->bi_arch_number); } @@ -249,59 +252,59 @@ void do_bootm_linux(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[], defined (CONFIG_CMDLINE_TAG) || \ defined (CONFIG_INITRD_TAG) || \ defined (CONFIG_VFD) -static void setup_start_tag(bd_t *bd) +static void setup_start_tag (bd_t *bd) { - params = (struct tag *)bd->bi_boot_params; + params = (struct tag *) bd->bi_boot_params; - params->hdr.tag = ATAG_CORE; - params->hdr.size = tag_size(tag_core); + params->hdr.tag = ATAG_CORE; + params->hdr.size = tag_size (tag_core); - params->u.core.flags = 0; - params->u.core.pagesize = 0; - params->u.core.rootdev = 0; + params->u.core.flags = 0; + params->u.core.pagesize = 0; + params->u.core.rootdev = 0; - params = tag_next(params); + params = tag_next (params); } #ifdef CONFIG_SETUP_MEMORY_TAGS -static void setup_memory_tags(bd_t *bd) +static void setup_memory_tags (bd_t *bd) { - int i; + int i; - for(i = 0; i < CONFIG_NR_DRAM_BANKS; i++) { - params->hdr.tag = ATAG_MEM; - params->hdr.size = tag_size(tag_mem32); + for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) { + params->hdr.tag = ATAG_MEM; + params->hdr.size = tag_size (tag_mem32); - params->u.mem.start = bd->bi_dram[i].start; - params->u.mem.size = bd->bi_dram[i].size; + params->u.mem.start = bd->bi_dram[i].start; + params->u.mem.size = bd->bi_dram[i].size; - params = tag_next(params); - } + params = tag_next (params); + } } -#endif /* CONFIG_SETUP_MEMORY_TAGS */ +#endif /* CONFIG_SETUP_MEMORY_TAGS */ -static void setup_commandline_tag(bd_t *bd, char *commandline) +static void setup_commandline_tag (bd_t *bd, char *commandline) { - char *p; + char *p; - /* eat leading white space */ - for(p = commandline; *p == ' '; p++) - ; + /* eat leading white space */ + for (p = commandline; *p == ' '; p++); - /* skip non-existent command lines so the kernel will still - * use its default command line. - */ - if(*p == '\0') - return; + /* skip non-existent command lines so the kernel will still + * use its default command line. + */ + if (*p == '\0') + return; - params->hdr.tag = ATAG_CMDLINE; - params->hdr.size = (sizeof(struct tag_header) + strlen(p) + 1 + 4) >> 2; + params->hdr.tag = ATAG_CMDLINE; + params->hdr.size = + (sizeof (struct tag_header) + strlen (p) + 1 + 4) >> 2; - strcpy(params->u.cmdline.cmdline, p); + strcpy (params->u.cmdline.cmdline, p); - params = tag_next(params); + params = tag_next (params); } @@ -310,64 +313,47 @@ static void setup_commandline_tag(bd_t *bd, char *commandline) #endif #ifdef CONFIG_INITRD_TAG -static void setup_initrd_tag(bd_t *bd, ulong initrd_start, ulong initrd_end) +static void setup_initrd_tag (bd_t *bd, ulong initrd_start, ulong initrd_end) { - /* an ATAG_INITRD node tells the kernel where the compressed - * ramdisk can be found. ATAG_RDIMG is a better name, actually. - */ - params->hdr.tag = ATAG_INITRD2; - params->hdr.size = tag_size(tag_initrd); + /* an ATAG_INITRD node tells the kernel where the compressed + * ramdisk can be found. ATAG_RDIMG is a better name, actually. + */ + params->hdr.tag = ATAG_INITRD2; + params->hdr.size = tag_size (tag_initrd); - params->u.initrd.start = initrd_start; - params->u.initrd.size = initrd_end - initrd_start; + params->u.initrd.start = initrd_start; + params->u.initrd.size = initrd_end - initrd_start; - params = tag_next(params); + params = tag_next (params); } -#endif /* CONFIG_INITRD_TAG */ +#endif /* CONFIG_INITRD_TAG */ -#if 0 -static void setup_ramdisk_tag(bd_t *bd) +#if defined (CONFIG_VFD) +static void setup_videolfb_tag (gd_t *gd) { - /* an ATAG_RAMDISK node tells the kernel how large the - * decompressed ramdisk will become. - */ - params->hdr.tag = ATAG_RAMDISK; - params->hdr.size = tag_size(tag_ramdisk); - - params->u.ramdisk.start = 0; - /*params->u.ramdisk.size = RAMDISK_SIZE; */ - params->u.ramdisk.flags = 1; /* automatically load ramdisk */ + /* An ATAG_VIDEOLFB node tells the kernel where and how large + * the framebuffer for video was allocated (among other things). + * Note that a _physical_ address is passed ! + * + * We only use it to pass the address and size, the other entries + * in the tag_videolfb are not of interest. + */ + params->hdr.tag = ATAG_VIDEOLFB; + params->hdr.size = tag_size (tag_videolfb); - params = tag_next(params); -} -#endif /* 0 */ + params->u.videolfb.lfb_base = (u32) gd->fb_base; + /* 7168 = 256*4*56/8 - actually 2 pages (8192 bytes) are allocated */ + params->u.videolfb.lfb_size = 7168; -#if defined (CONFIG_VFD) -static void setup_videolfb_tag(gd_t *gd) -{ - /* An ATAG_VIDEOLFB node tells the kernel where and how large - * the framebuffer for video was allocated (among other things). - * Note that a _physical_ address is passed ! - * - * We only use it to pass the address and size, the other entries - * in the tag_videolfb are not of interest. - */ - params->hdr.tag = ATAG_VIDEOLFB; - params->hdr.size = tag_size(tag_videolfb); - - params->u.videolfb.lfb_base = (u32)gd->fb_base; - /* 7168 = 256*4*56/8 - actually 2 pages (8192 bytes) are allocated */ - params->u.videolfb.lfb_size = 7168; - - params = tag_next(params); + params = tag_next (params); } #endif -static void setup_end_tag(bd_t *bd) +static void setup_end_tag (bd_t *bd) { - params->hdr.tag = ATAG_NONE; - params->hdr.size = 0; + params->hdr.tag = ATAG_NONE; + params->hdr.size = 0; } #endif /* CONFIG_SETUP_MEMORY_TAGS || CONFIG_CMDLINE_TAG || CONFIG_INITRD_TAG */ |