diff options
Diffstat (limited to 'target/linux/xburst/patches-2.6.32/050-nand.patch')
| -rw-r--r-- | target/linux/xburst/patches-2.6.32/050-nand.patch | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/target/linux/xburst/patches-2.6.32/050-nand.patch b/target/linux/xburst/patches-2.6.32/050-nand.patch new file mode 100644 index 0000000..af53c32 --- /dev/null +++ b/target/linux/xburst/patches-2.6.32/050-nand.patch @@ -0,0 +1,88 @@ +From 436aee004fda70b654698aff99427abdebf6bdb9 Mon Sep 17 00:00:00 2001 +From: Lars-Peter Clausen <lars@metafoo.de> +Date: Mon, 11 Jan 2010 04:29:37 +0100 +Subject: [PATCH] /opt/Projects/openwrt/target/linux/xburst/patches-2.6.31/050-nand.patch + +--- + drivers/mtd/nand/Kconfig | 6 ++++++ + drivers/mtd/nand/Makefile | 1 + + drivers/mtd/nand/nand_base.c | 19 +++++++------------ + 3 files changed, 14 insertions(+), 12 deletions(-) + +diff --git a/drivers/mtd/nand/Kconfig b/drivers/mtd/nand/Kconfig +index 2fda0b6..8b28828 100644 +--- a/drivers/mtd/nand/Kconfig ++++ b/drivers/mtd/nand/Kconfig +@@ -482,4 +482,10 @@ config MTD_NAND_W90P910 + This enables the driver for the NAND Flash on evaluation board based + on w90p910. + ++config MTD_NAND_JZ4740 ++ tristate "Support NAND Flash device on Jz4740 board" ++ depends on SOC_JZ4740 ++ help ++ Support NAND Flash device on Jz4740 board ++ + endif # MTD_NAND +diff --git a/drivers/mtd/nand/Makefile b/drivers/mtd/nand/Makefile +index 6950d3d..1661534 100644 +--- a/drivers/mtd/nand/Makefile ++++ b/drivers/mtd/nand/Makefile +@@ -42,5 +42,6 @@ obj-$(CONFIG_MTD_NAND_SOCRATES) += socrates_nand.o + obj-$(CONFIG_MTD_NAND_TXX9NDFMC) += txx9ndfmc.o + obj-$(CONFIG_MTD_NAND_W90P910) += w90p910_nand.o + obj-$(CONFIG_MTD_NAND_NOMADIK) += nomadik_nand.o ++obj-$(CONFIG_MTD_NAND_JZ4740) += jz4740_nand.o + + nand-objs := nand_base.o nand_bbt.o +diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c +index 2957cc7..33ed710 100644 +--- a/drivers/mtd/nand/nand_base.c ++++ b/drivers/mtd/nand/nand_base.c +@@ -956,29 +956,22 @@ static int nand_read_page_hwecc(struct mtd_info *mtd, struct nand_chip *chip, + uint8_t *ecc_calc = chip->buffers->ecccalc; + uint8_t *ecc_code = chip->buffers->ecccode; + uint32_t *eccpos = chip->ecc.layout->eccpos; +- +- for (i = 0; eccsteps; eccsteps--, i += eccbytes, p += eccsize) { +- chip->ecc.hwctl(mtd, NAND_ECC_READ); +- chip->read_buf(mtd, p, eccsize); +- chip->ecc.calculate(mtd, p, &ecc_calc[i]); +- } +- chip->read_buf(mtd, chip->oob_poi, mtd->oobsize); ++ int stat; + + for (i = 0; i < chip->ecc.total; i++) + ecc_code[i] = chip->oob_poi[eccpos[i]]; + +- eccsteps = chip->ecc.steps; +- p = buf; +- +- for (i = 0 ; eccsteps; eccsteps--, i += eccbytes, p += eccsize) { +- int stat; + ++ for (i = 0; eccsteps; eccsteps--, i += eccbytes, p += eccsize) { ++ chip->ecc.hwctl(mtd, NAND_ECC_READ); ++ chip->read_buf(mtd, p, eccsize); + stat = chip->ecc.correct(mtd, p, &ecc_code[i], &ecc_calc[i]); + if (stat < 0) + mtd->ecc_stats.failed++; + else + mtd->ecc_stats.corrected += stat; + } ++ + return 0; + } + +@@ -1178,6 +1171,8 @@ static int nand_do_read_ops(struct mtd_info *mtd, loff_t from, + bufpoi = aligned ? buf : chip->buffers->databuf; + + if (likely(sndcmd)) { ++ chip->cmdfunc(mtd, NAND_CMD_READOOB, 0x00, page); ++ chip->read_buf(mtd, chip->oob_poi, mtd->oobsize); + chip->cmdfunc(mtd, NAND_CMD_READ0, 0x00, page); + sndcmd = 0; + } +-- +1.5.6.5 + |