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mxc nand: Access all ecc_status_result fields

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On the NFC IP 1.1, the 32-bit ecc_status_result value comes from 2
consecutive 16-bit registers. This patch reads all the fields of this value,
which makes a difference for 4-kiB NF pages.

Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Cc: Scott Wood <scottwood@freescale.com>
Cc: Stefano Babic <sbabic@denx.de>
Signed-off-by: Scott Wood <scottwood@freescale.com>
This commit is contained in:
Benoît Thébaudeau 2012-08-13 22:49:42 +02:00 committed by Scott Wood
parent 0e55ad7271
commit c1db8dd62b
3 changed files with 6 additions and 3 deletions
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2
drivers/mtd/nand/mxc_nand.c
View File

@ -653,7 +653,7 @@ static int mxc_nand_correct_data(struct mtd_info *mtd, u_char *dat,
{
struct nand_chip *nand_chip = mtd->priv;
struct mxc_nand_host *host = nand_chip->priv;
uint16_t ecc_status = readw(&host->regs->ecc_status_result);
uint32_t ecc_status = readl(&host->regs->ecc_status_result);
int subpages = mtd->writesize / nand_chip->subpagesize;
int pg2blk_shift = nand_chip->phys_erase_shift -
nand_chip->page_shift;

3
include/fsl_nfc.h
View File

@ -94,8 +94,7 @@ struct fsl_nfc_regs {
u16 flash_addr;
u16 flash_cmd;
u16 config;
u16 ecc_status_result;
u16 ecc_status_result2;
u32 ecc_status_result;
u16 spare_area_size;
u16 wrprot;
u16 reserved3[2];

4
nand_spl/nand_boot_fsl_nfc.c
View File

@ -139,7 +139,11 @@ static void nfc_nand_data_output(void)
static int nfc_nand_check_ecc(void)
{
#if defined(MXC_NFC_V1)
return readw(&nfc->ecc_status_result);
#elif defined(MXC_NFC_V1_1)
return readl(&nfc->ecc_status_result);
#endif
}
static void nfc_nand_read_page(unsigned int page_address)