#include <jffs2/jffs2.h>
#include <nand.h>
+#if (CONFIG_COMMANDS & CFG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
+
+/* parition handling routines */
+int mtdparts_init(void);
+int id_parse(const char *id, const char **ret_id, u8 *dev_type, u8 *dev_num);
+int find_dev_and_part(const char *id, struct mtd_device **dev,
+ u8 *part_num, struct part_info **part);
+#endif
+
extern nand_info_t nand_info[]; /* info for NAND chips */
static int nand_dump_oob(nand_info_t *nand, ulong off)
/* ------------------------------------------------------------------------- */
-static void
-arg_off_size(int argc, char *argv[], ulong *off, ulong *size, ulong totsize)
+static inline int str2long(char *p, ulong *num)
{
- *off = 0;
- *size = 0;
+ char *endptr;
-#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;
+ *num = simple_strtoul(p, &endptr, 16);
+ return (*p != '\0' && *endptr == '\0') ? 1 : 0;
+}
- part = jffs2_part_info(part_num);
- if (part == NULL) {
- printf("\nInvalid partition %d\n", part_num);
- return;
+static int
+arg_off_size(int argc, char *argv[], nand_info_t *nand, ulong *off, ulong *size)
+{
+ int idx = nand_curr_device;
+#if (CONFIG_COMMANDS & CFG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
+ struct mtd_device *dev;
+ struct part_info *part;
+ u8 pnum;
+
+ if (argc >= 1 && !(str2long(argv[0], off))) {
+ if ((mtdparts_init() == 0) &&
+ (find_dev_and_part(argv[0], &dev, &pnum, &part) == 0)) {
+ if (dev->id->type != MTD_DEV_TYPE_NAND) {
+ puts("not a NAND device\n");
+ return -1;
+ }
+ *off = part->offset;
+ if (argc >= 2) {
+ if (!(str2long(argv[1], size))) {
+ printf("'%s' is not a number\n", argv[1]);
+ return -1;
+ }
+ if (*size > part->size)
+ *size = part->size;
+ } else {
+ *size = part->size;
+ }
+ idx = dev->id->num;
+ *nand = nand_info[idx];
+ goto out;
}
- *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;
+ if (argc >= 1) {
+ if (!(str2long(argv[0], off))) {
+ printf("'%s' is not a number\n", argv[0]);
+ return -1;
+ }
+ } else {
+ *off = 0;
+ }
+ if (argc >= 2) {
+ if (!(str2long(argv[1], size))) {
+ printf("'%s' is not a number\n", argv[1]);
+ return -1;
+ }
+ } else {
+ *size = nand->size - *off;
}
+#if (CONFIG_COMMANDS & CFG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
+out:
+#endif
+ printf("device %d ", idx);
+ if (*size == nand->size)
+ puts("whole chip\n");
+ else
+ printf("offset 0x%x, size 0x%x\n", *off, *size);
+ return 0;
}
int do_nand(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
return 0;
}
+ /*
+ * Syntax is:
+ * 0 1 2 3 4
+ * nand erase [clean] [off size]
+ */
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;
+ /* "clean" at index 2 means request to write cleanmarker */
+ int clean = argc > 2 && !strcmp("clean", argv[2]);
+ int o = clean ? 3 : 2;
int scrub = !strcmp(cmd, "scrub");
- if (clean) {
- rest_argc--;
- rest_argv++;
- }
-
- if (rest_argc == 0) {
-
- 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);
- }
+ printf("\nNAND %s: ", scrub ? "scrub" : "erase");
+ /* skip first two or three arguments, look for offset and size */
+ if (arg_off_size(argc - o, argv + o, nand, &off, &size) != 0)
+ return 1;
memset(&opts, 0, sizeof(opts));
opts.offset = off;
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 sure of what you are doing!\n"
- "\nReally scrub this NAND flash? <y/N>\n"
- );
+ puts("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 sure 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");
+ puts("scrub aborted\n");
return -1;
}
}
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;
-
read = strncmp(cmd, "read", 4) == 0; /* 1 = read, 0 = write */
- printf("\nNAND %s: device %d offset %u, size %u ... ",
- read ? "read" : "write", nand_curr_device, off, size);
+ printf("\nNAND %s: ", read ? "read" : "write");
+ if (arg_off_size(argc - 3, argv + 3, nand, &off, &size) != 0)
+ return 1;
s = strchr(cmd, '.');
if (s != NULL &&
opts.quiet = quiet;
ret = nand_write_opts(nand, &opts);
}
- printf("%s\n", ret ? "ERROR" : "OK");
- return ret == 0 ? 0 : 1;
+ } else {
+ if (read)
+ ret = nand_read(nand, off, &size, (u_char *)addr);
+ else
+ ret = nand_write(nand, off, &size, (u_char *)addr);
}
- 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,
read ? "read" : "written", ret ? "ERROR" : "OK");
}
} else {
if (!nand_lock(nand, tight)) {
- printf ("NAND flash successfully locked\n");
+ puts("NAND flash successfully locked\n");
} else {
- printf ("Error locking NAND flash. \n");
+ puts("Error locking NAND flash\n");
return 1;
}
}
}
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 (arg_off_size(argc - 2, argv + 2, nand, &off, &size) < 0)
+ return 1;
if (!nand_unlock(nand, off, size)) {
- printf("NAND flash successfully unlocked\n");
+ puts("NAND flash successfully unlocked\n");
} else {
- printf("Error unlocking NAND flash. "
- "Write and erase will probably fail\n");
+ puts("Error unlocking NAND flash, "
+ "write and erase will probably fail\n");
return 1;
}
return 0;
"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"
+ "nand read[.jffs2] - addr off|partition size\n"
+ "nand write[.jffs2] - addr off|partiton 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 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[])
+static int nand_load_image(cmd_tbl_t *cmdtp, nand_info_t *nand,
+ ulong offset, ulong addr, char *cmd)
{
- char *boot_device = NULL;
- char *ep;
- int dev;
int r;
- ulong addr, cnt, offset = 0;
+ char *ep;
+ ulong cnt;
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);
+ printf("\nLoading from %s, offset 0x%lx\n", nand->name, offset);
cnt = nand->oobblock;
r = nand_read(nand, offset, &cnt, (u_char *) addr);
if (r) {
- printf("** Read error on %d\n", dev);
+ puts("** Read error\n");
SHOW_BOOT_PROGRESS(-1);
return 1;
}
r = nand_read(nand, offset, &cnt, (u_char *) addr);
if (r) {
- printf("** Read error on %d\n", dev);
+ puts("** Read error\n");
SHOW_BOOT_PROGRESS(-1);
return 1;
}
char *local_args[2];
extern int do_bootm(cmd_tbl_t *, int, int, char *[]);
- local_args[0] = argv[0];
+ local_args[0] = cmd;
local_args[1] = NULL;
printf("Automatic boot of image at addr 0x%08lx ...\n", addr);
return 0;
}
-U_BOOT_CMD(nboot, 4, 1, do_nandboot,
- "nboot - boot from NAND device\n", "loadAddr dev\n");
+int do_nandboot(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+{
+ char *boot_device = NULL;
+ int idx;
+ ulong addr, offset = 0;
+#if (CONFIG_COMMANDS & CFG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
+ struct mtd_device *dev;
+ struct part_info *part;
+ u8 pnum;
+
+ if (argc >= 2) {
+ char *p = (argc == 2) ? argv[1] : argv[2];
+ if (!(str2long(p, &addr)) && (mtdparts_init() == 0) &&
+ (find_dev_and_part(p, &dev, &pnum, &part) == 0)) {
+ if (dev->id->type != MTD_DEV_TYPE_NAND) {
+ puts("Not a NAND device\n");
+ return 1;
+ }
+ if (argc > 3)
+ goto usage;
+ if (argc == 3)
+ addr = simple_strtoul(argv[2], NULL, 16);
+ else
+ addr = CFG_LOAD_ADDR;
+ return nand_load_image(cmdtp, &nand_info[dev->id->num],
+ part->offset, addr, argv[0]);
+ }
+ }
+#endif
+ 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:
+#if (CONFIG_COMMANDS & CFG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
+usage:
+#endif
+ 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;
+ }
+
+ idx = simple_strtoul(boot_device, NULL, 16);
+
+ if (idx < 0 || idx >= CFG_MAX_NAND_DEVICE || !nand_info[idx].name) {
+ printf("\n** Device %d not available\n", idx);
+ SHOW_BOOT_PROGRESS(-1);
+ return 1;
+ }
+
+ return nand_load_image(cmdtp, &nand_info[idx], offset, addr, argv[0]);
+}
+
+U_BOOT_CMD(nboot, 4, 1, do_nandboot,
+ "nboot - boot from NAND device\n",
+ "[partition] | [[[loadAddr] dev] offset]\n");
#endif /* (CONFIG_COMMANDS & CFG_CMD_NAND) */
nand device num
Make device `num' the current device and print information about it.
- nand erase off size
- nand erase clean [off size]
- Erase `size' bytes starting at offset `off'. Only complete erase
- blocks can be erased.
+ nand erase off|partition size
+ nand erase clean [off|partition size]
+ Erase `size' bytes starting at offset `off'. Alternatively partition
+ name can be specified, in this case size will be eventually limited
+ to not exceed partition size (this behaviour applies also to read
+ and write commands). Only complete erase blocks can be erased.
+
+ If `erase' is specified without an offset or size, the entire flash
+ is erased. If `erase' is specified with partition but without an
+ size, the entire partition is erased.
If `clean' is specified, a JFFS2-style clean marker is written to
- each block after it is erased. If `clean' is specified without an
- offset or size, the entire flash is erased.
+ each block after it is erased.
This command will not erase blocks that are marked bad. There is
a debug option in cmd_nand.c to allow bad blocks to be erased.
nand info
Print information about all of the NAND devices found.
- nand read addr ofs size
+ nand read addr ofs|partition size
Read `size' bytes from `ofs' in NAND flash to `addr'. If a page
cannot be read because it is marked bad or an uncorrectable data
error is found the command stops with an error.
- nand read.jffs2 addr ofs size
+ nand read.jffs2 addr ofs|partition size
Like `read', but the data for blocks that are marked bad is read as
0xff. This gives a readable JFFS2 image that can be processed by
the JFFS2 commands such as ls and fsload.
- nand read.oob addr ofs size
+ nand read.oob addr ofs|partition size
Read `size' bytes from the out-of-band data area corresponding to
`ofs' in NAND flash to `addr'. This is limited to the 16 bytes of
data for one 512-byte page or 2 256-byte pages. There is no check
for bad blocks or ECC errors.
- nand write addr ofs size
+ nand write addr ofs|partition size
Write `size' bytes from `addr' to `ofs' in NAND flash. If a page
cannot be written because it is marked bad or the write fails the
command stops with an error.
- nand write.jffs2 addr ofs size
+ nand write.jffs2 addr ofs|partition size
Like `write', but blocks that are marked bad are skipped and the
is written to the next block instead. This allows writing writing
a JFFS2 image, as long as the image is short enough to fit even
produced by mkfs.jffs2 should work well, but loading an image copied
from another flash is going to be trouble if there are any bad blocks.
- nand write.oob addr ofs size
+ nand write.oob addr ofs|partition size
Write `size' bytes from `addr' to the out-of-band data area
corresponding to `ofs' in NAND flash. This is limited to the 16 bytes
of data for one 512-byte page or 2 256-byte pages. There is no check
projects / u-boot / commitdiff