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Diffstat (limited to 'common/cmd_nand.c')
-rw-r--r--common/cmd_nand.c131
1 files changed, 66 insertions, 65 deletions
diff --git a/common/cmd_nand.c b/common/cmd_nand.c
index 0a366d32c..11f909662 100644
--- a/common/cmd_nand.c
+++ b/common/cmd_nand.c
@@ -160,10 +160,51 @@ out:
if (*size == nand->size)
puts("whole chip\n");
else
- printf("offset 0x%lx, size 0x%x\n", *off, *size);
+ printf("offset 0x%lx, size 0x%zx\n", *off, *size);
return 0;
}
+#ifdef CONFIG_CMD_NAND_LOCK_UNLOCK
+static void print_status(ulong start, ulong end, ulong erasesize, int status)
+{
+ printf("%08lx - %08lx: %08lx blocks %s%s%s\n",
+ start,
+ end - 1,
+ (end - start) / erasesize,
+ ((status & NAND_LOCK_STATUS_TIGHT) ? "TIGHT " : ""),
+ ((status & NAND_LOCK_STATUS_LOCK) ? "LOCK " : ""),
+ ((status & NAND_LOCK_STATUS_UNLOCK) ? "UNLOCK " : ""));
+}
+
+static void do_nand_status(nand_info_t *nand)
+{
+ 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->erasesize) {
+ int s = nand_get_lock_status(nand, off);
+
+ /* print message only if status has changed */
+ if (s != last_status && off != 0) {
+ print_status(block_start, off, nand->erasesize,
+ last_status);
+ block_start = off;
+ }
+ last_status = s;
+ }
+ /* Print the last block info */
+ print_status(block_start, off, nand->erasesize, last_status);
+}
+#endif
+
int do_nand(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
{
int i, dev, ret = 0;
@@ -357,7 +398,7 @@ int do_nand(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
return 1;
}
- printf(" %d bytes %s: %s\n", size,
+ printf(" %zu bytes %s: %s\n", size,
read ? "read" : "written", ret ? "ERROR" : "OK");
return ret == 0 ? 0 : 1;
@@ -383,8 +424,9 @@ int do_nand(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
return 1;
}
+#ifdef CONFIG_CMD_NAND_LOCK_UNLOCK
if (strcmp(cmd, "lock") == 0) {
- int tight = 0;
+ int tight = 0;
int status = 0;
if (argc == 3) {
if (!strcmp("tight", argv[2]))
@@ -392,44 +434,8 @@ int do_nand(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
if (!strcmp("status", argv[2]))
status = 1;
}
-/*
- * ! BROKEN !
- *
- * TODO: must be implemented and tested by someone with HW
- */
-#if 0
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->writesize) {
- 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->writesize
- || (s != last_status && off != 0)) {
-
- printf("%08lx - %08lx: %8d pages %s%s%s\n",
- block_start,
- off-1,
- (off-block_start)/nand->writesize,
- ((last_status & NAND_LOCK_STATUS_TIGHT) ? "TIGHT " : ""),
- ((last_status & NAND_LOCK_STATUS_LOCK) ? "LOCK " : ""),
- ((last_status & NAND_LOCK_STATUS_UNLOCK) ? "UNLOCK " : ""));
- }
-
- last_status = s;
- }
+ do_nand_status(nand);
} else {
if (!nand_lock(nand, tight)) {
puts("NAND flash successfully locked\n");
@@ -438,7 +444,6 @@ int do_nand(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
return 1;
}
}
-#endif
return 0;
}
@@ -446,12 +451,6 @@ int do_nand(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
if (arg_off_size(argc - 2, argv + 2, nand, &off, &size) < 0)
return 1;
-/*
- * ! BROKEN !
- *
- * TODO: must be implemented and tested by someone with HW
- */
-#if 0
if (!nand_unlock(nand, off, size)) {
puts("NAND flash successfully unlocked\n");
} else {
@@ -459,17 +458,17 @@ int do_nand(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
"write and erase will probably fail\n");
return 1;
}
-#endif
return 0;
}
+#endif
usage:
- printf("Usage:\n%s\n", cmdtp->usage);
+ cmd_usage(cmdtp);
return 1;
}
U_BOOT_CMD(nand, 5, 1, do_nand,
- "nand - NAND sub-system\n",
+ "NAND sub-system",
"info - show available NAND devices\n"
"nand device [dev] - show or set current device\n"
"nand read - addr off|partition size\n"
@@ -483,9 +482,12 @@ U_BOOT_CMD(nand, 5, 1, do_nand,
"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"
+#ifdef CONFIG_CMD_NAND_LOCK_UNLOCK
"nand lock [tight] [status]\n"
" bring nand to lock state or display locked pages\n"
- "nand unlock [offset] [size] - unlock section\n");
+ "nand unlock [offset] [size] - unlock section\n"
+#endif
+);
static int nand_load_image(cmd_tbl_t *cmdtp, nand_info_t *nand,
ulong offset, ulong addr, char *cmd)
@@ -636,7 +638,7 @@ int do_nandboot(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
#if defined(CONFIG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
usage:
#endif
- printf("Usage:\n%s\n", cmdtp->usage);
+ cmd_usage(cmdtp);
show_boot_progress(-53);
return 1;
}
@@ -662,7 +664,7 @@ usage:
}
U_BOOT_CMD(nboot, 4, 1, do_nandboot,
- "nboot - boot from NAND device\n",
+ "boot from NAND device",
"[partition] | [[[loadAddr] dev] offset]\n");
#endif
@@ -749,7 +751,7 @@ int do_nand (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
switch (argc) {
case 0:
case 1:
- printf ("Usage:\n%s\n", cmdtp->usage);
+ cmd_usage(cmdtp);
return 1;
case 2:
if (strcmp (argv[1], "info") == 0) {
@@ -787,7 +789,7 @@ int do_nand (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
return 0;
}
- printf ("Usage:\n%s\n", cmdtp->usage);
+ cmd_usage(cmdtp);
return 1;
case 3:
if (strcmp (argv[1], "device") == 0) {
@@ -826,7 +828,7 @@ int do_nand (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
return ret;
}
- printf ("Usage:\n%s\n", cmdtp->usage);
+ cmd_usage(cmdtp);
return 1;
default:
/* at least 4 args */
@@ -854,13 +856,12 @@ int do_nand (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
(u_char *) addr);
}
return ret;
- } else if (cmdtail && !strncmp (cmdtail, ".jffs2", 2))
- cmd |= NANDRW_JFFS2; /* skip bad blocks */
- else if (cmdtail && !strncmp (cmdtail, ".jffs2s", 2)) {
+ } else if (cmdtail && !strncmp (cmdtail, ".jffs2s", 7)) {
cmd |= NANDRW_JFFS2; /* skip bad blocks (on read too) */
if (cmd & NANDRW_READ)
cmd |= NANDRW_JFFS2_SKIP; /* skip bad blocks (on read too) */
- }
+ } else if (cmdtail && !strncmp (cmdtail, ".jffs2", 2))
+ cmd |= NANDRW_JFFS2; /* skip bad blocks */
#ifdef SXNI855T
/* need ".e" same as ".j" for compatibility with older units */
else if (cmdtail && !strcmp (cmdtail, ".e"))
@@ -876,7 +877,7 @@ int do_nand (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
}
#endif /* CONFIG_SYS_NAND_SKIP_BAD_DOT_I */
else if (cmdtail) {
- printf ("Usage:\n%s\n", cmdtp->usage);
+ cmd_usage(cmdtp);
return 1;
}
@@ -912,7 +913,7 @@ int do_nand (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
return ret;
} else {
- printf ("Usage:\n%s\n", cmdtp->usage);
+ cmd_usage(cmdtp);
rcode = 1;
}
@@ -922,7 +923,7 @@ int do_nand (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
U_BOOT_CMD(
nand, 5, 1, do_nand,
- "nand - legacy NAND sub-system\n",
+ "legacy NAND sub-system",
"info - show available NAND devices\n"
"nand device [dev] - show or set current device\n"
"nand read[.jffs2[s]] addr off size\n"
@@ -969,7 +970,7 @@ int do_nandboot (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
offset = simple_strtoul(argv[3], NULL, 16);
break;
default:
- printf ("Usage:\n%s\n", cmdtp->usage);
+ cmd_usage(cmdtp);
show_boot_progress (-53);
return 1;
}
@@ -1071,7 +1072,7 @@ int do_nandboot (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
U_BOOT_CMD(
nboot, 4, 1, do_nandboot,
- "nboot - boot from NAND device\n",
+ "boot from NAND device",
"loadAddr dev\n"
);
generated by cgit v1.2.3-70-g09d2 (git 2.51.2) at 2025-11-02 19:21:47 +0000