mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-11-25 11:22:28 +02:00
89 lines
2.9 KiB
Diff
89 lines
2.9 KiB
Diff
|
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
|
||
|
|
|