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authorSascha Hauer <s.hauer@pengutronix.de>2016-02-23 15:05:44 +0100
committerSascha Hauer <s.hauer@pengutronix.de>2016-03-15 08:56:53 +0100
commit40ee3002bba2be046e3b96b0665436a080ba0c25 (patch)
tree30306bc2287e9d1378647e338056101d63a14302 /commands/nand.c
parent172af2a30c4fbd71087103e4cf9b6c9f585d8602 (diff)
downloadbarebox-40ee3002bba2be046e3b96b0665436a080ba0c25.tar.gz
mtd: nand: Add option to print bbt in nand command
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'commands/nand.c')
-rw-r--r--commands/nand.c51
1 files changed, 40 insertions, 11 deletions
diff --git a/commands/nand.c b/commands/nand.c
index 1807c92..b065a66 100644
--- a/commands/nand.c
+++ b/commands/nand.c
@@ -33,14 +33,18 @@
#define NAND_DEL 2
#define NAND_MARKBAD 3
#define NAND_MARKGOOD 4
+#define NAND_INFO 5
static int do_nand(int argc, char *argv[])
{
int opt;
int command = 0;
loff_t badblock = 0;
+ int fd;
+ int ret;
+ struct mtd_info_user mtdinfo;
- while((opt = getopt(argc, argv, "adb:g:")) > 0) {
+ while((opt = getopt(argc, argv, "adb:g:i")) > 0) {
if (command) {
printf("only one command may be given\n");
return 1;
@@ -61,6 +65,9 @@ static int do_nand(int argc, char *argv[])
command = NAND_MARKGOOD;
badblock = strtoull_suffix(optarg, NULL, 0);
break;
+ case 'i':
+ command = NAND_INFO;
+ break;
default:
return COMMAND_ERROR_USAGE;
}
@@ -90,8 +97,17 @@ static int do_nand(int argc, char *argv[])
}
}
+ fd = open(argv[optind], O_RDWR);
+ if (fd < 0) {
+ perror("open");
+ return 1;
+ }
+
+ ret = ioctl(fd, MEMGETINFO, &mtdinfo);
+ if (ret)
+ goto out;
+
if (command == NAND_MARKBAD || command == NAND_MARKGOOD) {
- int ret = 0, fd;
const char *str;
int ctl;
@@ -106,12 +122,6 @@ static int do_nand(int argc, char *argv[])
printf("marking block at 0x%08llx on %s as %s\n",
badblock, argv[optind], str);
- fd = open(argv[optind], O_RDWR);
- if (fd < 0) {
- perror("open");
- return 1;
- }
-
ret = ioctl(fd, ctl, &badblock);
if (ret) {
if (ret == -EINVAL)
@@ -121,11 +131,29 @@ static int do_nand(int argc, char *argv[])
perror("ioctl");
}
- close(fd);
- return ret;
+ goto out;
}
- return 0;
+ if (command == NAND_INFO) {
+ loff_t ofs;
+ int bad = 0;
+
+ for (ofs = 0; ofs < mtdinfo.size; ofs += mtdinfo.erasesize) {
+ if (ioctl(fd, MEMGETBADBLOCK, &ofs)) {
+ printf("Block at 0x%08llx is bad\n", ofs);
+ bad = 1;
+ }
+ }
+
+ if (!bad)
+ printf("No bad blocks\n");
+ }
+
+ ret = 0;
+out:
+ close(fd);
+
+ return ret;
}
BAREBOX_CMD_HELP_START(nand)
@@ -134,6 +162,7 @@ BAREBOX_CMD_HELP_OPT ("-a", "register a bad block aware device ontop of a norma
BAREBOX_CMD_HELP_OPT ("-d", "deregister a bad block aware device")
BAREBOX_CMD_HELP_OPT ("-b OFFS", "mark block at OFFSet as bad")
BAREBOX_CMD_HELP_OPT ("-g OFFS", "mark block at OFFSet as good")
+BAREBOX_CMD_HELP_OPT ("-i", "info. Show information about bad blocks")
BAREBOX_CMD_HELP_END
BAREBOX_CMD_START(nand)