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NAND read/write fix

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Implement block-skipping read/write, based on a patch from
Morten Ebbell Hestens <morten.hestnes@tandberg.com>.

Signed-off-by: Morten Ebbell Hestnes <morten.hestnes@tandberg.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
This commit is contained in:
Scott Wood 2008-06-12 13:20:16 -05:00
parent 984e03cdf1
commit dfbf617ff0
3 changed files with 194 additions and 611 deletions
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36
common/cmd_nand.c
View file

@ -74,7 +74,8 @@ static int nand_dump(nand_info_t *nand, ulong off, int only_oob)
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[8], p[9], p[10], p[11], p[12], p[13], p[14],
p[15]);
p += 16;
}
puts("OOB:\n");
@ -317,7 +318,6 @@ 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;
@ -334,31 +334,12 @@ int do_nand(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
s = strchr(cmd, '.');
if (!s || !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;
/*
* ! BROKEN !
*
* TODO: Function must be implemented
*
* ret = nand_read_opts(nand, &opts);
*/
} else {
/* write */
mtd_oob_ops_t opts;
memset(&opts, 0, sizeof(opts));
opts.datbuf = (u_char*) addr;
opts.len = size;
opts.ooblen = 64;
opts.mode = MTD_OOB_AUTO;
ret = nand_write_opts(nand, off, &opts);
}
if (read)
ret = nand_read_skip_bad(nand, off, &size,
(u_char *)addr);
else
ret = nand_write_skip_bad(nand, off, &size,
(u_char *)addr);
} else if (s != NULL && !strcmp(s, ".oob")) {
/* out-of-band data */
mtd_oob_ops_t ops = {
@ -396,6 +377,7 @@ int do_nand(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
}
return 1;
}
if (strcmp(cmd, "biterr") == 0) {
/* todo */
return 1;