void do_booti_linux (boot_img_hdr *hdr) { char *bootargs; ulong initrd_start, initrd_end; void (*theKernel)(int zero, int arch, uint params); bd_t *bd = gd->bd; theKernel = (void (*)(int, int, uint))(hdr->kernel_addr); initrd_start = hdr->ramdisk_addr; initrd_end = initrd_start + hdr->ramdisk_size; printf(" Initrd start : %p , Initrd end : %p",initrd_start, initrd_end); #if defined (CONFIG_SETUP_MEMORY_TAGS) setup_start_tag (bd); #ifdef CONFIG_SERIAL_TAG setup_serial_tag (¶ms); #endif #ifdef CONFIG_REVISION_TAG setup_revision_tag (¶ms); #endif #ifdef CONFIG_SETUP_MEMORY_TAGS setup_memory_tags (bd); #endif #ifdef CONFIG_CMDLINE_TAG bootargs = getenv("bootargs"); if (bootargs == NULL || *bootargs == '\0') { bootargs = hdr->cmdline; } setup_commandline_tag (bd, bootargs); #endif #ifdef CONFIG_INITRD_TAG if (hdr->ramdisk_size) setup_initrd_tag (bd, initrd_start, initrd_end); #endif #if defined (CONFIG_VFD) || defined (CONFIG_LCD) setup_videolfb_tag ((gd_t *) gd); #endif setup_modelid_tag (¶ms); setup_end_tag (bd); #endif /* we assume that the kernel is in place */ printf ("\nStarting kernel ...\n\n"); #ifdef CONFIG_USB_DEVICE { extern void udc_disconnect (void); udc_disconnect (); } #endif cleanup_before_linux (); theKernel (0, bd->bi_arch_number, bd->bi_boot_params); }
void do_bootm_linux (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[], ulong addr, ulong *len_ptr, int verify) { ulong len = 0, checksum; ulong initrd_start, initrd_end; ulong data; void (*theKernel)(int zero, int arch, uint params); image_header_t *hdr = &header; bd_t *bd = gd->bd; #ifdef CONFIG_CMDLINE_TAG char *commandline = getenv ("bootargs"); #endif theKernel = (void (*)(int, int, uint))ntohl(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 */ #ifdef CONFIG_HAS_DATAFLASH if (addr_dataflash (addr)) { read_dataflash (addr, sizeof (image_header_t), (char *) &header); } else #endif 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); } data = (ulong) & header; len = sizeof (image_header_t); checksum = ntohl (hdr->ih_hcrc); hdr->ih_hcrc = 0; if (crc32 (0, (unsigned char *) data, len) != checksum) { printf ("Bad Header Checksum\n"); SHOW_BOOT_PROGRESS (-11); do_reset (cmdtp, flag, argc, argv); } SHOW_BOOT_PROGRESS (10); print_image_hdr (hdr); data = addr + sizeof (image_header_t); len = ntohl (hdr->ih_size); #ifdef CONFIG_HAS_DATAFLASH 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, (unsigned 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); } #if defined(CONFIG_B2) || defined(CONFIG_EVB4510) || defined(CONFIG_ARMADILLO) /* *we need to copy the ramdisk to SRAM to let Linux boot */ memmove ((void *) ntohl(hdr->ih_load), (uchar *)data, len); data = ntohl(hdr->ih_load); #endif /* CONFIG_B2 || CONFIG_EVB4510 */ /* * 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; } #ifdef DEBUG if (!data) { printf ("No initrd\n"); } #endif if (data) { initrd_start = data; initrd_end = initrd_start + len; } else { initrd_start = 0; initrd_end = 0; } SHOW_BOOT_PROGRESS (15); 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_SERIAL_TAG) || \ defined (CONFIG_REVISION_TAG) || \ defined (CONFIG_LCD) || \ defined (CONFIG_VFD) setup_start_tag (bd); #ifdef CONFIG_SERIAL_TAG setup_serial_tag (¶ms); #endif #ifdef CONFIG_REVISION_TAG setup_revision_tag (¶ms); #endif #ifdef CONFIG_SETUP_MEMORY_TAGS setup_memory_tags (bd); #endif #ifdef CONFIG_CMDLINE_TAG setup_commandline_tag (bd, commandline); #endif #ifdef CONFIG_INITRD_TAG if (initrd_start && initrd_end) setup_initrd_tag (bd, initrd_start, initrd_end); #endif #if defined (CONFIG_VFD) || defined (CONFIG_LCD) setup_videolfb_tag ((gd_t *) gd); #endif setup_modelid_tag(¶ms); setup_cpuid_tag(¶ms); setup_end_tag (bd); #endif /* we assume that the kernel is in place */ printf ("\nStarting kernel ...\n\n"); #ifdef CONFIG_USB_DEVICE { extern void udc_disconnect (void); udc_disconnect (); } #endif cleanup_before_linux (); theKernel (0, bd->bi_arch_number, bd->bi_boot_params); }