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NAND fsl elbc: Set FMR[ECCM] based on page size. 

Hardware expects ECCM 0 for small page and ECCM 1 for large page
when booting from NAND, so use those defaults.

Signed-off-by: Scott Wood <scottwood@freescale.com>
This commit is contained in:
Scott Wood 2008-10-29 13:42:41 -05:00
parent c013b74975
commit f7fe57c098
1 changed files with 14 additions and 2 deletions
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16
drivers/mtd/nand/fsl_elbc_nand.c
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@ -777,6 +777,20 @@ int board_nand_init(struct nand_chip *nand)
nand->ecc.read_page = fsl_elbc_read_page;
nand->ecc.write_page = fsl_elbc_write_page;
#ifdef CONFIG_FSL_ELBC_FMR
priv->fmr = CONFIG_FSL_ELBC_FMR;
#else
priv->fmr = (15 << FMR_CWTO_SHIFT) | (2 << FMR_AL_SHIFT);
/*
* Hardware expects small page has ECCM0, large page has ECCM1
* when booting from NAND. Board config can override if not
* booting from NAND.
*/
if (or & OR_FCM_PGS)
priv->fmr |= FMR_ECCM;
#endif
/* If CS Base Register selects full hardware ECC then use it */
if ((br & BR_DECC) == BR_DECC_CHK_GEN) {
nand->ecc.mode = NAND_ECC_HW;
@ -793,8 +807,6 @@ int board_nand_init(struct nand_chip *nand)
nand->ecc.mode = NAND_ECC_SOFT;
}
priv->fmr = (15 << FMR_CWTO_SHIFT) | (2 << FMR_AL_SHIFT);
/* Large-page-specific setup */
if (or & OR_FCM_PGS) {
priv->page_size = 1;