[PATCH v3 06/10] mtd: sh_flctl: Simplify the hardware ecc page read/write
Bastian Hecht
hechtb at googlemail.com
Wed May 2 05:41:46 EDT 2012
As the equation mtd->writesize == eccsteps * eccsize holds, we can
simplify the code. The second loop of the 1st hunk is never entered,
so we delete it.
Signed-off-by: Bastian Hecht <hechtb at gmail.com>
---
drivers/mtd/nand/sh_flctl.c | 25 ++-----------------------
1 files changed, 2 insertions(+), 23 deletions(-)
diff --git a/drivers/mtd/nand/sh_flctl.c b/drivers/mtd/nand/sh_flctl.c
index 4ea3e20..b0389c5 100644
--- a/drivers/mtd/nand/sh_flctl.c
+++ b/drivers/mtd/nand/sh_flctl.c
@@ -346,35 +346,14 @@ static void set_cmd_regs(struct mtd_info *mtd, uint32_t cmd, uint32_t flcmcdr_va
static int flctl_read_page_hwecc(struct mtd_info *mtd, struct nand_chip *chip,
uint8_t *buf, int page)
{
- int i, eccsize = chip->ecc.size;
- int eccbytes = chip->ecc.bytes;
- int eccsteps = chip->ecc.steps;
- uint8_t *p = buf;
- struct sh_flctl *flctl = mtd_to_flctl(mtd);
-
- for (i = 0; eccsteps; eccsteps--, i += eccbytes, p += eccsize)
- chip->read_buf(mtd, p, eccsize);
-
- for (i = 0; eccsteps; eccsteps--, i += eccbytes, p += eccsize) {
- if (flctl->hwecc_cant_correct[i])
- mtd->ecc_stats.failed++;
- else
- mtd->ecc_stats.corrected += 0; /* FIXME */
- }
-
+ chip->read_buf(mtd, buf, mtd->writesize);
return 0;
}
static void flctl_write_page_hwecc(struct mtd_info *mtd, struct nand_chip *chip,
const uint8_t *buf)
{
- int i, eccsize = chip->ecc.size;
- int eccbytes = chip->ecc.bytes;
- int eccsteps = chip->ecc.steps;
- const uint8_t *p = buf;
-
- for (i = 0; eccsteps; eccsteps--, i += eccbytes, p += eccsize)
- chip->write_buf(mtd, p, eccsize);
+ chip->write_buf(mtd, buf, mtd->writesize);
}
static void execmd_read_page_sector(struct mtd_info *mtd, int page_addr)
--
1.7.5.4
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