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authorScott Wood <scottwood@freescale.com>2008-10-29 13:42:41 -0500
committerScott Wood <scottwood@freescale.com>2008-10-29 13:42:41 -0500
commitf7fe57c09866b44692d18c8cf22828bd137ec58d (patch)
tree29ac0c8a63daf8a61ead549bf40b9ee85b249fc8
parentc013b74975dab0805ef6d369b013230c4e8a660d (diff)
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>
-rw-r--r--drivers/mtd/nand/fsl_elbc_nand.c16
1 files changed, 14 insertions, 2 deletions
diff --git a/drivers/mtd/nand/fsl_elbc_nand.c b/drivers/mtd/nand/fsl_elbc_nand.c
index b097ca5ab..367c7d7fc 100644
--- a/drivers/mtd/nand/fsl_elbc_nand.c
+++ b/drivers/mtd/nand/fsl_elbc_nand.c
@@ -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;