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NAND: Make page, erase, oob size available via cmd_nand

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The "nand info" and "nand device" now set shell/environment variables:
	nand_writesize ... nand page size
	nand_oobsize ..... nand oob area size
	nand_erasesize ... nand erase block size

Also, the "nand info" command now displays this info.

Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Cc: Scott Wood <scottwood@freescale.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Wolfgang Denk <wd@denx.de>
Cc: Detlev Zundel <dzu@denx.de>
[scottwood@freescale.com: removed unnecessary memsets]
Signed-off-by: Scott Wood <scottwood@freescale.com>
This commit is contained in:
Marek Vasut 2011-09-22 03:57:26 +02:00 committed by Scott Wood
parent 17d261df18
commit ce80ddc180
1 changed files with 19 additions and 3 deletions
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22
common/cmd_nand.c
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@ -362,15 +362,31 @@ usage:
#endif
static void nand_print_info(int idx)
static void nand_print_and_set_info(int idx)
{
nand_info_t *nand = &nand_info[idx];
struct nand_chip *chip = nand->priv;
const int bufsz = 32;
char buf[bufsz];
printf("Device %d: ", idx);
if (chip->numchips > 1)
printf("%dx ", chip->numchips);
printf("%s, sector size %u KiB\n",
nand->name, nand->erasesize >> 10);
printf(" Page size %8d b\n", nand->writesize);
printf(" OOB size %8d b\n", nand->oobsize);
printf(" Erase size %8d b\n", nand->erasesize);
/* Set geometry info */
sprintf(buf, "%x", nand->writesize);
setenv("nand_writesize", buf);
sprintf(buf, "%x", nand->oobsize);
setenv("nand_oobsize", buf);
sprintf(buf, "%x", nand->erasesize);
setenv("nand_erasesize", buf);
}
int do_nand(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
@ -407,7 +423,7 @@ int do_nand(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
putc('\n');
for (i = 0; i < CONFIG_SYS_MAX_NAND_DEVICE; i++) {
if (nand_info[i].name)
nand_print_info(i);
nand_print_and_set_info(i);
}
return 0;
}
@ -418,7 +434,7 @@ int do_nand(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
if (dev < 0 || dev >= CONFIG_SYS_MAX_NAND_DEVICE)
puts("no devices available\n");
else
nand_print_info(dev);
nand_print_and_set_info(dev);
return 0;
}