[PATCH v2 09/51] mtd: nand: fsl_ifc: use mtd_ooblayout_xxx() helpers where appropriate

Boris Brezillon
2016-02-04T10:29:30Z

The mtd_ooblayout_xxx() helper functions have been added to avoid direct
accesses to the ecclayout field, and thus ease for future reworks.
Use these helpers in all places where the oobfree[] and eccpos[] arrays
where directly accessed.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
---
drivers/mtd/nand/fsl_ifc_nand.c | 14 +++++++++-----
1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/drivers/mtd/nand/fsl_ifc_nand.c b/drivers/mtd/nand/fsl_ifc_nand.c
index 43f5a3a..2e970ac 100644
--- a/drivers/mtd/nand/fsl_ifc_nand.c
+++ b/drivers/mtd/nand/fsl_ifc_nand.c
@@ -257,18 +257,22 @@ static int is_blank(struct mtd_info *mtd, unsigned int bufnum)
u8 __iomem *addr = priv->vbase + bufnum * (mtd->writesize * 2);
u32 __iomem *mainarea = (u32 __iomem *)addr;
u8 __iomem *oob = addr + mtd->writesize;
- int i;
+ struct mtd_oob_region oobregion = { };
+ int i, section = 0;

for (i = 0; i < mtd->writesize / 4; i++) {
if (__raw_readl(&mainarea[i]) != 0xffffffff)
return 0;
}

- for (i = 0; i < chip->ecc.layout->eccbytes; i++) {
- int pos = chip->ecc.layout->eccpos[i];
+ mtd_ooblayout_ecc(mtd, section++, &oobregion);
+ while (oobregion.length) {
+ for (i = 0; i < oobregion.length; i++) {
+ if (__raw_readb(&oob[oobregion.offset + i]) != 0xff)
+ return 0;
+ }

- if (__raw_readb(&oob[pos]) != 0xff)
- return 0;
+ mtd_ooblayout_ecc(mtd, section++, &oobregion);
}

return 1;
--
2.1.4