diff options
Diffstat (limited to 'common/cmd_nand_new.c')
| -rw-r--r-- | common/cmd_nand_new.c | 364 |
1 files changed, 364 insertions, 0 deletions
diff --git a/common/cmd_nand_new.c b/common/cmd_nand_new.c new file mode 100644 index 0000000..3ff2eba --- /dev/null +++ b/common/cmd_nand_new.c @@ -0,0 +1,364 @@ +#include <common.h> + +#if (CONFIG_COMMANDS & CFG_CMD_NAND) && defined CONFIG_NEW_NAND_CODE + +#include <command.h> +#include <watchdog.h> +#include <malloc.h> +#include <asm/byteorder.h> + +#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 + +#include <jffs2/jffs2.h> +#include <nand.h> + +extern nand_info_t nand_info[]; /* info for NAND chips */ + +static int nand_dump_oob(nand_info_t *nand, ulong off) +{ + return 0; +} + +static int nand_dump(nand_info_t *nand, ulong off) +{ + int i; + u_char *buf, *p; + + buf = malloc(nand->oobblock + nand->oobsize); + if (!buf) { + puts("No memory for page buffer\n"); + return 1; + } + off &= ~(nand->oobblock - 1); + i = nand_read_raw(nand, buf, off, nand->oobblock, nand->oobsize); + if (i < 0) { + printf("Error (%d) reading page %08x\n", i, off); + free(buf); + return 1; + } + printf("Page %08x dump:\n", off); + i = nand->oobblock >> 4; p = buf; + while (i--) { + printf( "\t%02x %02x %02x %02x %02x %02x %02x %02x" + " %02x %02x %02x %02x %02x %02x %02x %02x\n", + p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7], + p[8], p[9], p[10], p[11], p[12], p[13], p[14], p[15]); + p += 16; + } + puts("OOB:\n"); + i = nand->oobsize >> 3; + while (i--) { + printf( "\t%02x %02x %02x %02x %02x %02x %02x %02x\n", + p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7]); + p += 8; + } + free(buf); + + return 0; +} + +/* ------------------------------------------------------------------------- */ + +static void +arg_off_size(int argc, char *argv[], ulong *off, ulong *size, ulong totsize) +{ + *off = 0; + *size = 0; + +#if defined(CONFIG_JFFS2_NAND) && defined(CFG_JFFS_CUSTOM_PART) + if (argc >= 1 && strcmp(argv[0], "partition") == 0) { + int part_num; + struct part_info *part; + const char *partstr; + + if (argc >= 2) + partstr = argv[1]; + else + partstr = getenv("partition"); + + if (partstr) + part_num = (int)simple_strtoul(partstr, NULL, 10); + else + part_num = 0; + + part = jffs2_part_info(part_num); + if (part == NULL) { + printf("\nInvalid partition %d\n", part_num); + return; + } + *size = part->size; + *off = (ulong)part->offset; + } else +#endif + { + if (argc >= 1) + *off = (ulong)simple_strtoul(argv[0], NULL, 16); + else + *off = 0; + + if (argc >= 2) + *size = (ulong)simple_strtoul(argv[1], NULL, 16); + else + *size = totsize - *off; + + } + +} + +int do_nand(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[]) +{ + int i, dev, ret; + ulong addr, off, size; + char *cmd, *s; + nand_info_t *nand; + + /* at least two arguments please */ + if (argc < 2) + goto usage; + + cmd = argv[1]; + + if (strcmp(cmd, "info") == 0) { + + putc('\n'); + for (i = 0; i < CFG_MAX_NAND_DEVICE; i++) { + if (nand_info[i].name) + printf("Device %d: %s\n", i, nand_info[i].name); + } + return 0; + } + + if (strcmp(cmd, "device") == 0) { + + if (argc < 3) { + if ((nand_curr_device < 0) || + (nand_curr_device >= CFG_MAX_NAND_DEVICE)) + puts("\nno devices available\n"); + else + printf("\nDevice %d: %s\n", nand_curr_device, + nand_info[nand_curr_device].name); + return 0; + } + dev = (int)simple_strtoul(argv[2], NULL, 10); + if (dev < 0 || dev >= CFG_MAX_NAND_DEVICE || !nand_info[dev].name) { + puts("No such device\n"); + return 1; + } + printf("Device %d: %s", dev, nand_info[dev].name); + puts("... is now current device\n"); + nand_curr_device = dev; + return 0; + } + + if (strcmp(cmd, "bad") != 0 && strcmp(cmd, "erase") != 0 && + strncmp(cmd, "dump", 4) != 0 && + strncmp(cmd, "read", 4) != 0 && strncmp(cmd, "write", 5) != 0) + goto usage; + + /* the following commands operate on the current device */ + if (nand_curr_device < 0 || nand_curr_device >= CFG_MAX_NAND_DEVICE || + !nand_info[nand_curr_device].name) { + puts("\nno devices available\n"); + return 1; + } + nand = &nand_info[nand_curr_device]; + + if (strcmp(cmd, "bad") == 0) { + printf("\nDevice %d bad blocks:\n", nand_curr_device); + for (off = 0; off < nand->size; off += nand->erasesize) + if (nand_block_isbad(nand, off)) + printf(" %08x\n", off); + return 0; + } + + if (strcmp(cmd, "erase") == 0) { + arg_off_size(argc - 2, argv + 2, &off, &size, nand->size); + if (off == 0 && size == 0) + return 1; + + printf("\nNAND erase: device %d offset 0x%x, size 0x%x ", + nand_curr_device, off, size); + ret = nand_erase(nand, off, size); + printf("%s\n", ret ? "ERROR" : "OK"); + + return ret == 0 ? 0 : 1; + } + + if (strncmp(cmd, "dump", 4) == 0) { + if (argc < 3) + goto usage; + + s = strchr(cmd, '.'); + off = (int)simple_strtoul(argv[2], NULL, 16); + + if (s != NULL && strcmp(s, ".oob") == 0) + ret = nand_dump_oob(nand, off); + else + ret = nand_dump(nand, off); + + return ret == 0 ? 1 : 0; + + } + + /* read write */ + if (strncmp(cmd, "read", 4) == 0 || strncmp(cmd, "write", 5) == 0) { + if (argc < 4) + goto usage; +/* + s = strchr(cmd, '.'); + clean = CLEAN_NONE; + if (s != NULL) { + if (strcmp(s, ".jffs2") == 0 || strcmp(s, ".e") == 0 + || strcmp(s, ".i")) + clean = CLEAN_JFFS2; + } +*/ + addr = (ulong)simple_strtoul(argv[2], NULL, 16); + + arg_off_size(argc - 3, argv + 3, &off, &size, nand->size); + if (off == 0 && size == 0) + return 1; + + i = strncmp(cmd, "read", 4) == 0; /* 1 = read, 0 = write */ + printf("\nNAND %s: device %d offset %u, size %u ... ", + i ? "read" : "write", nand_curr_device, off, size); + + if (i) + ret = nand_read(nand, off, &size, (u_char *)addr); + else + ret = nand_write(nand, off, &size, (u_char *)addr); + + printf(" %d bytes %s: %s\n", size, + i ? "read" : "written", ret ? "ERROR" : "OK"); + + return ret == 0 ? 0 : 1; + } +usage: + printf("Usage:\n%s\n", cmdtp->usage); + return 1; +} + +U_BOOT_CMD(nand, 5, 1, do_nand, + "nand - NAND sub-system\n", + "info - show available NAND devices\n" + "nand device [dev] - show or set current device\n" + "nand read[.jffs2] - addr off size\n" + "nand write[.jffs2] - addr off size - read/write `size' bytes starting\n" + " at offset `off' to/from memory address `addr'\n" + "nand erase [clean] [off size] - erase `size' bytes from\n" + " offset `off' (entire device if not specified)\n" + "nand bad - show bad blocks\n" + "nand dump[.oob] off - dump page\n" + "nand scrub - really clean NAND erasing bad blocks (UNSAFE)\n" + "nand markbad off - mark bad block at offset (UNSAFE)\n" + "nand biterr off - make a bit error at offset (UNSAFE)\n"); + +int do_nandboot(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[]) +{ + char *boot_device = NULL; + char *ep; + int dev; + int r; + ulong addr, cnt, offset = 0; + image_header_t *hdr; + nand_info_t *nand; + + switch (argc) { + case 1: + addr = CFG_LOAD_ADDR; + boot_device = getenv("bootdevice"); + break; + case 2: + addr = simple_strtoul(argv[1], NULL, 16); + boot_device = getenv("bootdevice"); + break; + case 3: + addr = simple_strtoul(argv[1], NULL, 16); + boot_device = argv[2]; + break; + case 4: + addr = simple_strtoul(argv[1], NULL, 16); + boot_device = argv[2]; + offset = simple_strtoul(argv[3], NULL, 16); + break; + default: + printf("Usage:\n%s\n", cmdtp->usage); + SHOW_BOOT_PROGRESS(-1); + return 1; + } + + if (!boot_device) { + puts("\n** No boot device **\n"); + SHOW_BOOT_PROGRESS(-1); + return 1; + } + + dev = simple_strtoul(boot_device, &ep, 16); + + if (dev < 0 || dev >= CFG_MAX_NAND_DEVICE || !nand_info[dev].name) { + printf("\n** Device %d not available\n", dev); + SHOW_BOOT_PROGRESS(-1); + return 1; + } + + nand = &nand_info[dev]; + printf("\nLoading from device %d: %s (offset 0x%lx)\n", + dev, nand->name, offset); + + cnt = nand->oobblock; + r = nand_read(nand, offset, &cnt, (u_char *) addr); + if (r) { + printf("** Read error on %d\n", dev); + SHOW_BOOT_PROGRESS(-1); + return 1; + } + + hdr = (image_header_t *) addr; + + if (ntohl(hdr->ih_magic) != IH_MAGIC) { + printf("\n** Bad Magic Number 0x%x **\n", hdr->ih_magic); + SHOW_BOOT_PROGRESS(-1); + return 1; + } + + print_image_hdr(hdr); + + cnt = (ntohl(hdr->ih_size) + sizeof (image_header_t)); + + r = nand_read(nand, offset, &cnt, (u_char *) addr); + if (r) { + printf("** Read error on %d\n", dev); + SHOW_BOOT_PROGRESS(-1); + return 1; + } + + /* Loading ok, update default load address */ + + load_addr = addr; + + /* Check if we should attempt an auto-start */ + if (((ep = getenv("autostart")) != NULL) && (strcmp(ep, "yes") == 0)) { + char *local_args[2]; + extern int do_bootm(cmd_tbl_t *, int, int, char *[]); + + local_args[0] = argv[0]; + local_args[1] = NULL; + + printf("Automatic boot of image at addr 0x%08lx ...\n", addr); + + do_bootm(cmdtp, 0, 1, local_args); + return 1; + } + return 0; +} + +U_BOOT_CMD(nboot, 4, 1, do_nandboot, + "nboot - boot from NAND device\n", "loadAddr dev\n"); + + +#endif /* (CONFIG_COMMANDS & CFG_CMD_NAND) */ |