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mtd: nand: omap: allow to switch to BCH16

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support in omap_nand_switch_ecc() also an eccstrength
from 16.

Signed-off-by: Heiko Schocher <hs@denx.de>
This commit is contained in:
Heiko Schocher 2016-06-07 08:55:42 +02:00 committed by Tom Rini
parent 5d29e27eb9
commit 3a504d9639
2 changed files with 8 additions and 2 deletions
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6
arch/arm/cpu/armv7/omap3/board.c
View File

@ -280,6 +280,8 @@ static int do_switch_ecc(cmd_tbl_t * cmdtp, int flag, int argc, char * const arg
omap_nand_switch_ecc(1, 1); omap_nand_switch_ecc(1, 1);
else if (strncmp(argv[2], "bch8", 4) == 0) else if (strncmp(argv[2], "bch8", 4) == 0)
omap_nand_switch_ecc(1, 8); omap_nand_switch_ecc(1, 8);
else if (strncmp(argv[2], "bch16", 5) == 0)
omap_nand_switch_ecc(1, 16);
else else
goto usage; goto usage;
} }
@ -308,8 +310,8 @@ usage:
U_BOOT_CMD( U_BOOT_CMD(
nandecc, 3, 1, do_switch_ecc, nandecc, 3, 1, do_switch_ecc,
"switch OMAP3 NAND ECC calculation algorithm", "switch OMAP3 NAND ECC calculation algorithm",
"hw [hamming|bch8] - Switch between NAND hardware 1-bit hamming and" "hw [hamming|bch8|bch16] - Switch between NAND hardware 1-bit hamming"
" 8-bit BCH\n" " and 8-bit/16-bit BCH\n"
" ecc calculation (second parameter may" " ecc calculation (second parameter may"
" be omitted).\n" " be omitted).\n"
"nandecc sw - Switch to NAND software ecc algorithm." "nandecc sw - Switch to NAND software ecc algorithm."

4
drivers/mtd/nand/omap_gpmc.c
View File

@ -917,6 +917,10 @@ int __maybe_unused omap_nand_switch_ecc(uint32_t hardware, uint32_t eccstrength)
err = omap_select_ecc_scheme(nand, err = omap_select_ecc_scheme(nand,
OMAP_ECC_BCH8_CODE_HW, OMAP_ECC_BCH8_CODE_HW,
mtd->writesize, mtd->oobsize); mtd->writesize, mtd->oobsize);
} else if (eccstrength == 16) {
err = omap_select_ecc_scheme(nand,
OMAP_ECC_BCH16_CODE_HW,
mtd->writesize, mtd->oobsize);
} else { } else {
printf("nand: error: unsupported ECC scheme\n"); printf("nand: error: unsupported ECC scheme\n");
return -EINVAL; return -EINVAL;