diff options
| author | Ilya Yanok <yanok@emcraft.com> | 2011-11-28 06:37:37 +0000 |
|---|---|---|
| committer | Albert ARIBAUD <albert.u.boot@aribaud.net> | 2011-12-06 23:59:36 +0100 |
| commit | 1df308e5be76ec42ade8fb21f623f36ba09217bd (patch) | |
| tree | 19ea8959f104971e98015ba79f03c94b0ad655d1 | |
| parent | ad2a7909a1430321224ea25c808494b4df8d1140 (diff) | |
| download | u-boot-imx-1df308e5be76ec42ade8fb21f623f36ba09217bd.zip u-boot-imx-1df308e5be76ec42ade8fb21f623f36ba09217bd.tar.gz u-boot-imx-1df308e5be76ec42ade8fb21f623f36ba09217bd.tar.bz2 | |
nand_spl_simple: add support for software ECC
This patch adds support for software ECC to the nand_spl_simple driver.
To enable this one have to define CONFIG_SPL_NAND_SOFTECC.
Tested on OMAP3.
Signed-off-by: Ilya Yanok <yanok@emcraft.com>
Acked-by: Scott Wood <scottwood@freescale.com>
| -rw-r--r-- | drivers/mtd/nand/nand_ecc.c | 2 | ||||
| -rw-r--r-- | drivers/mtd/nand/nand_spl_simple.c | 11 |
2 files changed, 11 insertions, 2 deletions
diff --git a/drivers/mtd/nand/nand_ecc.c b/drivers/mtd/nand/nand_ecc.c index 52bc916..81f0e08 100644 --- a/drivers/mtd/nand/nand_ecc.c +++ b/drivers/mtd/nand/nand_ecc.c @@ -50,7 +50,7 @@ * only nand_correct_data() is needed */ -#ifndef CONFIG_NAND_SPL +#if !defined(CONFIG_NAND_SPL) || defined(CONFIG_SPL_NAND_SOFTECC) /* * Pre-calculated 256-way 1 byte column parity */ diff --git a/drivers/mtd/nand/nand_spl_simple.c b/drivers/mtd/nand/nand_spl_simple.c index e5003e6..ed821f2 100644 --- a/drivers/mtd/nand/nand_spl_simple.c +++ b/drivers/mtd/nand/nand_spl_simple.c @@ -21,6 +21,7 @@ #include <common.h> #include <nand.h> #include <asm/io.h> +#include <linux/mtd/nand_ecc.h> static int nand_ecc_pos[] = CONFIG_SYS_NAND_ECCPOS; static nand_info_t mtd; @@ -204,7 +205,8 @@ static int nand_read_page(int block, int page, void *dst) oob_data = ecc_calc + 0x200; for (i = 0; eccsteps; eccsteps--, i += eccbytes, p += eccsize) { - this->ecc.hwctl(&mtd, NAND_ECC_READ); + if (this->ecc.mode != NAND_ECC_SOFT) + this->ecc.hwctl(&mtd, NAND_ECC_READ); this->read_buf(&mtd, p, eccsize); this->ecc.calculate(&mtd, p, &ecc_calc[i]); } @@ -274,6 +276,13 @@ void nand_init(void) (void __iomem *)CONFIG_SYS_NAND_BASE; board_nand_init(&nand_chip); +#ifdef CONFIG_SPL_NAND_SOFTECC + if (nand_chip.ecc.mode == NAND_ECC_SOFT) { + nand_chip.ecc.calculate = nand_calculate_ecc; + nand_chip.ecc.correct = nand_correct_data; + } +#endif + if (nand_chip.select_chip) nand_chip.select_chip(&mtd, 0); } |