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10b1e8ca0c
there is repeat code in platform.c file and 050-nand.patch make 200-qi_lb60.patch no warning. Signed-off-by: Xiangfu Liu <xiangfu.z@gmail.com>
102 lines
3.2 KiB
Diff
102 lines
3.2 KiB
Diff
From 3558f77fbc178030cf2991dddd678847a35ef98e Mon Sep 17 00:00:00 2001
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From: Xiangfu Liu <xiangfu.z@gmail.com>
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Date: Thu, 20 Aug 2009 18:35:54 +0800
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Subject: [PATCH] nand
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---
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arch/mips/jz4740/platform.c | 1 +
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drivers/mtd/nand/Kconfig | 6 ++++++
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drivers/mtd/nand/Makefile | 1 +
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drivers/mtd/nand/nand_base.c | 19 +++++++------------
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4 files changed, 15 insertions(+), 12 deletions(-)
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diff --git a/arch/mips/jz4740/platform.c b/arch/mips/jz4740/platform.c
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index a02aec1..bac37ee 100644
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--- a/arch/mips/jz4740/platform.c
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+++ b/arch/mips/jz4740/platform.c
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@@ -15,6 +15,7 @@
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#include <linux/resource.h>
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#include <linux/mtd/jz4740_nand.h>
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#include <linux/input/matrix_keypad.h>
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+#include <linux/mtd/jz4740_nand.h>
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#include <asm/jzsoc.h>
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diff --git a/drivers/mtd/nand/Kconfig b/drivers/mtd/nand/Kconfig
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index ce96c09..818bce0 100644
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--- a/drivers/mtd/nand/Kconfig
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+++ b/drivers/mtd/nand/Kconfig
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@@ -452,4 +452,10 @@ config MTD_NAND_SOCRATES
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help
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Enables support for NAND Flash chips wired onto Socrates board.
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+config MTD_NAND_JZ4740
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+ tristate "Support NAND Flash device on Jz4740 board"
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+ depends on SOC_JZ4740
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+ help
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+ Support NAND Flash device on Jz4740 board
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+
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endif # MTD_NAND
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diff --git a/drivers/mtd/nand/Makefile b/drivers/mtd/nand/Makefile
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index f3a786b..ef4590b 100644
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--- a/drivers/mtd/nand/Makefile
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+++ b/drivers/mtd/nand/Makefile
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@@ -40,5 +40,6 @@ obj-$(CONFIG_MTD_NAND_SH_FLCTL) += sh_flctl.o
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obj-$(CONFIG_MTD_NAND_MXC) += mxc_nand.o
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obj-$(CONFIG_MTD_NAND_SOCRATES) += socrates_nand.o
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obj-$(CONFIG_MTD_NAND_TXX9NDFMC) += txx9ndfmc.o
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+obj-$(CONFIG_MTD_NAND_JZ4740) += jz4740_nand.o
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nand-objs := nand_base.o nand_bbt.o
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diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
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index 8c21b89..1749f31 100644
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--- a/drivers/mtd/nand/nand_base.c
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+++ b/drivers/mtd/nand/nand_base.c
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@@ -953,29 +953,22 @@ static int nand_read_page_hwecc(struct mtd_info *mtd, struct nand_chip *chip,
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uint8_t *ecc_calc = chip->buffers->ecccalc;
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uint8_t *ecc_code = chip->buffers->ecccode;
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uint32_t *eccpos = chip->ecc.layout->eccpos;
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-
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- for (i = 0; eccsteps; eccsteps--, i += eccbytes, p += eccsize) {
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- chip->ecc.hwctl(mtd, NAND_ECC_READ);
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- chip->read_buf(mtd, p, eccsize);
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- chip->ecc.calculate(mtd, p, &ecc_calc[i]);
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- }
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- chip->read_buf(mtd, chip->oob_poi, mtd->oobsize);
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+ int stat;
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for (i = 0; i < chip->ecc.total; i++)
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ecc_code[i] = chip->oob_poi[eccpos[i]];
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- eccsteps = chip->ecc.steps;
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- p = buf;
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-
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- for (i = 0 ; eccsteps; eccsteps--, i += eccbytes, p += eccsize) {
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- int stat;
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+ for (i = 0; eccsteps; eccsteps--, i += eccbytes, p += eccsize) {
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+ chip->ecc.hwctl(mtd, NAND_ECC_READ);
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+ chip->read_buf(mtd, p, eccsize);
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stat = chip->ecc.correct(mtd, p, &ecc_code[i], &ecc_calc[i]);
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if (stat < 0)
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mtd->ecc_stats.failed++;
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else
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mtd->ecc_stats.corrected += stat;
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}
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+
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return 0;
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}
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@@ -1125,6 +1118,8 @@ static int nand_do_read_ops(struct mtd_info *mtd, loff_t from,
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bufpoi = aligned ? buf : chip->buffers->databuf;
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if (likely(sndcmd)) {
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+ chip->cmdfunc(mtd, NAND_CMD_READOOB, 0x00, page);
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+ chip->read_buf(mtd, chip->oob_poi, mtd->oobsize);
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chip->cmdfunc(mtd, NAND_CMD_READ0, 0x00, page);
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sndcmd = 0;
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}
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--
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1.6.0.4
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