diff options
author | Jon Loeliger <jdl@freescale.com> | 2006-10-11 10:16:01 -0500 |
---|---|---|
committer | Jon Loeliger <jdl@freescale.com> | 2006-10-11 10:16:01 -0500 |
commit | c3c3b089adcee06df3afd4e8b00a3fea82263bcd (patch) | |
tree | f0e65751f51993a6b46160a8362065a0e36ae315 /common | |
parent | bf651baa365e5447246aad6a633ccd667cf24a39 (diff) | |
parent | 2255b2d2044d434463eb2661e18018e50f1643d9 (diff) | |
download | u-boot-c3c3b089adcee06df3afd4e8b00a3fea82263bcd.zip u-boot-c3c3b089adcee06df3afd4e8b00a3fea82263bcd.tar.gz u-boot-c3c3b089adcee06df3afd4e8b00a3fea82263bcd.tar.bz2 |
Merge branch 'master' of http://www.denx.de/git/u-boot
Diffstat (limited to 'common')
-rw-r--r-- | common/cmd_nand.c | 226 |
1 files changed, 201 insertions, 25 deletions
diff --git a/common/cmd_nand.c b/common/cmd_nand.c index 21adb1b..274ef0b 100644 --- a/common/cmd_nand.c +++ b/common/cmd_nand.c @@ -135,11 +135,16 @@ int do_nand(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[]) ulong addr, off, size; char *cmd, *s; nand_info_t *nand; + int quiet = 0; + const char *quiet_str = getenv("quiet"); /* at least two arguments please */ if (argc < 2) goto usage; + if (quiet_str) + quiet = simple_strtoul(quiet_str, NULL, 0) != 0; + cmd = argv[1]; if (strcmp(cmd, "info") == 0) { @@ -178,7 +183,10 @@ int do_nand(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[]) if (strcmp(cmd, "bad") != 0 && strcmp(cmd, "erase") != 0 && strncmp(cmd, "dump", 4) != 0 && - strncmp(cmd, "read", 4) != 0 && strncmp(cmd, "write", 5) != 0) + strncmp(cmd, "read", 4) != 0 && strncmp(cmd, "write", 5) != 0 && + strcmp(cmd, "scrub") != 0 && strcmp(cmd, "markbad") != 0 && + strcmp(cmd, "biterr") != 0 && + strcmp(cmd, "lock") != 0 && strcmp(cmd, "unlock") != 0 ) goto usage; /* the following commands operate on the current device */ @@ -197,14 +205,64 @@ int do_nand(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[]) 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; + if (strcmp(cmd, "erase") == 0 || strcmp(cmd, "scrub") == 0) { + nand_erase_options_t opts; + int clean = argc >= 3 && !strcmp("clean", argv[2]); + int rest_argc = argc - 2; + char **rest_argv = argv + 2; + int scrub = !strcmp(cmd, "scrub"); + + if (clean) { + rest_argc--; + rest_argv++; + } + + if (rest_argc == 0) { - printf("\nNAND erase: device %d offset 0x%x, size 0x%x ", - nand_curr_device, off, size); - ret = nand_erase(nand, off, size); + printf("\nNAND %s: device %d whole chip\n", + cmd, + nand_curr_device); + + off = size = 0; + } else { + arg_off_size(rest_argc, rest_argv, &off, &size, + nand->size); + + if (off == 0 && size == 0) + return 1; + + printf("\nNAND %s: device %d offset 0x%x, size 0x%x\n", + cmd, nand_curr_device, off, size); + } + + memset(&opts, 0, sizeof(opts)); + opts.offset = off; + opts.length = size; + opts.jffs2 = clean; + opts.quiet = quiet; + + if (scrub) { + printf("Warning: " + "scrub option will erase all factory set " + "bad blocks!\n" + " " + "There is no reliable way to recover them.\n" + " " + "Use this command only for testing purposes " + "if you\n" + " " + "are shure of what you are doing!\n" + "\nReally scrub this NAND flash? <y/N>\n" + ); + + if (getc() == 'y' && getc() == '\r') { + opts.scrub = 1; + } else { + printf("scrub aborted\n"); + return -1; + } + } + ret = nand_erase_opts(nand, &opts); printf("%s\n", ret ? "ERROR" : "OK"); return ret == 0 ? 0 : 1; @@ -228,37 +286,153 @@ int do_nand(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[]) /* read write */ if (strncmp(cmd, "read", 4) == 0 || strncmp(cmd, "write", 5) == 0) { + int read; + 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 */ + read = 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); + read ? "read" : "write", nand_curr_device, off, size); - if (i) + s = strchr(cmd, '.'); + if (s != NULL && + (!strcmp(s, ".jffs2") || !strcmp(s, ".e") || !strcmp(s, ".i"))) { + if (read) { + /* read */ + nand_read_options_t opts; + memset(&opts, 0, sizeof(opts)); + opts.buffer = (u_char*) addr; + opts.length = size; + opts.offset = off; + opts.quiet = quiet; + ret = nand_read_opts(nand, &opts); + } else { + /* write */ + nand_write_options_t opts; + memset(&opts, 0, sizeof(opts)); + opts.buffer = (u_char*) addr; + opts.length = size; + opts.offset = off; + /* opts.forcejffs2 = 1; */ + opts.pad = 1; + opts.blockalign = 1; + opts.quiet = quiet; + ret = nand_write_opts(nand, &opts); + } + printf("%s\n", ret ? "ERROR" : "OK"); + return ret == 0 ? 0 : 1; + } + + if (read) 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"); + read ? "read" : "written", ret ? "ERROR" : "OK"); return ret == 0 ? 0 : 1; } + + /* 2006-09-28 gc: implement missing commands */ + if (strcmp(cmd, "markbad") == 0) { + addr = (ulong)simple_strtoul(argv[2], NULL, 16); + + int ret = nand->block_markbad(nand, addr); + if (ret == 0) { + printf("block 0x%08lx successfully marked as bad\n", + (ulong) addr); + return 0; + } else { + printf("block 0x%08lx NOT marked as bad! ERROR %d\n", + (ulong) addr, ret); + } + return 1; + } + if (strcmp(cmd, "biterr") == 0) { + /* todo */ + return 1; + } + + if (strcmp(cmd, "lock") == 0) { + int tight = 0; + int status = 0; + if (argc == 3) { + if (!strcmp("tight", argv[2])) + tight = 1; + if (!strcmp("status", argv[2])) + status = 1; + } + + if (status) { + ulong block_start = 0; + ulong off; + int last_status = -1; + + struct nand_chip *nand_chip = nand->priv; + /* check the WP bit */ + nand_chip->cmdfunc (nand, NAND_CMD_STATUS, -1, -1); + printf("device is %swrite protected\n", + (nand_chip->read_byte(nand) & 0x80 ? + "NOT " : "" ) ); + + for (off = 0; off < nand->size; off += nand->oobblock) { + int s = nand_get_lock_status(nand, off); + + /* print message only if status has changed + * or at end of chip + */ + if (off == nand->size - nand->oobblock + || (s != last_status && off != 0)) { + + printf("%08x - %08x: %8d pages %s%s%s\n", + block_start, + off-1, + (off-block_start)/nand->oobblock, + ((last_status & NAND_LOCK_STATUS_TIGHT) ? "TIGHT " : ""), + ((last_status & NAND_LOCK_STATUS_LOCK) ? "LOCK " : ""), + ((last_status & NAND_LOCK_STATUS_UNLOCK) ? "UNLOCK " : "")); + } + + last_status = s; + } + } else { + if (!nand_lock(nand, tight)) { + printf ("NAND flash successfully locked\n"); + } else { + printf ("Error locking NAND flash. \n"); + return 1; + } + } + return 0; + } + + if (strcmp(cmd, "unlock") == 0) { + if (argc == 2) { + off = 0; + size = nand->size; + } else { + arg_off_size(argc - 2, argv + 2, &off, &size, + nand->size); + } + + if (!nand_unlock(nand, off, size)) { + printf("NAND flash successfully unlocked\n"); + } else { + printf("Error unlocking NAND flash. " + "Write and erase will probably fail\n"); + return 1; + } + return 0; + } + usage: printf("Usage:\n%s\n", cmdtp->usage); return 1; @@ -277,7 +451,9 @@ U_BOOT_CMD(nand, 5, 1, do_nand, "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"); + "nand biterr off - make a bit error at offset (UNSAFE)\n" + "nand lock [tight] [status] - bring nand to lock state or display locked pages\n" + "nand unlock [offset] [size] - unlock section\n"); int do_nandboot(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[]) { @@ -596,7 +772,7 @@ int do_nand (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) return 1; } - printf ("\nNAND %s: device %d offset %ld, size %ld ... ", + printf ("\nNAND %s: device %d offset %ld, size %ld ...\n", (cmd & NANDRW_READ) ? "read" : "write", curr_device, off, size); @@ -615,7 +791,7 @@ int do_nand (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) ulong size = simple_strtoul(argv[3 + clean], NULL, 16); int ret; - printf ("\nNAND erase: device %d offset %ld, size %ld ... ", + printf ("\nNAND erase: device %d offset %ld, size %ld ...\n", curr_device, off, size); ret = nand_legacy_erase (nand_dev_desc + curr_device, @@ -635,7 +811,7 @@ int do_nand (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) U_BOOT_CMD( nand, 5, 1, do_nand, - "nand - NAND sub-system\n", + "nand - legacy NAND sub-system\n", "info - show available NAND devices\n" "nand device [dev] - show or set current device\n" "nand read[.jffs2[s]] addr off size\n" |