diff options
| author |   Koen Kooi <koen@openembedded.org> | 2010-01-01 11:30:37 +0100 |
|---|---|---|
| committer | Koen Kooi <koen@openembedded.org> | 2010-01-02 16:50:46 +0100 |
| commit | e197d7b594a1a6aebeb0ec476d88ff0871b7c482 (patch) | |
| tree | 9de8ba8c6f04337c512d5c38876d58e0c70f9fb6 /recipes/linux/linux-omap-2.6.32 | |
| parent | a3f120c3c8a49fc53e6d5b092261f268fc780897 (diff) | |
| download | openembedded-e197d7b594a1a6aebeb0ec476d88ff0871b7c482.tar.gz | |
linux-omap 2.6.32: add patch to fix NAND ECC errors
Diffstat (limited to 'recipes/linux/linux-omap-2.6.32')
| -rw-r--r-- | recipes/linux/linux-omap-2.6.32/0009-MTD-NAND-omap2-proper-fix-for-subpage-read-ECC-error.patch | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/recipes/linux/linux-omap-2.6.32/0009-MTD-NAND-omap2-proper-fix-for-subpage-read-ECC-error.patch b/recipes/linux/linux-omap-2.6.32/0009-MTD-NAND-omap2-proper-fix-for-subpage-read-ECC-error.patch new file mode 100644 index 0000000000..6e7f706c51 --- /dev/null +++ b/recipes/linux/linux-omap-2.6.32/0009-MTD-NAND-omap2-proper-fix-for-subpage-read-ECC-error.patch @@ -0,0 +1,35 @@ +From 64e4fc11b960da97728e0d87dcf4c1e98f808501 Mon Sep 17 00:00:00 2001 +From: Steve Sakoman <steve@sakoman.com> +Date: Thu, 31 Dec 2009 07:05:02 -0800 +Subject: [PATCH] MTD: NAND: omap2: proper fix for subpage read ECC errors + +--- + drivers/mtd/nand/omap2.c | 11 +++++++---- + 1 files changed, 7 insertions(+), 4 deletions(-) + +diff --git a/drivers/mtd/nand/omap2.c b/drivers/mtd/nand/omap2.c +index 1bb799f..75004fe 100644 +--- a/drivers/mtd/nand/omap2.c ++++ b/drivers/mtd/nand/omap2.c +@@ -295,11 +295,14 @@ static void omap_read_buf_pref(struct mtd_info *mtd, u_char *buf, int len) + u32 *p = (u32 *)buf; + + /* take care of subpage reads */ +- for (; len % 4 != 0; ) { +- *buf++ = __raw_readb(info->nand.IO_ADDR_R); +- len--; ++ if (len % 4) { ++ if (info->nand.options & NAND_BUSWIDTH_16) ++ omap_read_buf16(mtd, buf, len % 4); ++ else ++ omap_read_buf8(mtd, buf, len % 4); ++ p = (u32 *) (buf + len % 4); ++ len -= len % 4; + } +- p = (u32 *) buf; + + /* configure and start prefetch transfer */ + ret = gpmc_prefetch_enable(info->gpmc_cs, 0x0, len, 0x0); +-- +1.6.5 + |