From a35f8c947088b65dd1524938b59fb9b1e429807c Mon Sep 17 00:00:00 2001 From: lars Date: Fri, 26 Feb 2010 18:09:12 +0000 Subject: [xburst] jz4740_nand: * Use NAND_ECC_HW_OOB_FIRST mode instead of a patched NAND_ECC_HW * Fix subpage writing * speed up reading git-svn-id: svn://svn.openwrt.org/openwrt/trunk@19875 3c298f89-4303-0410-b956-a3cf2f4a3e73 --- target/linux/xburst/patches-2.6.32/050-nand.patch | 47 +---------------------- 1 file changed, 1 insertion(+), 46 deletions(-) (limited to 'target/linux/xburst/patches-2.6.32/050-nand.patch') diff --git a/target/linux/xburst/patches-2.6.32/050-nand.patch b/target/linux/xburst/patches-2.6.32/050-nand.patch index e803a218b..bdb1df8a3 100644 --- a/target/linux/xburst/patches-2.6.32/050-nand.patch +++ b/target/linux/xburst/patches-2.6.32/050-nand.patch @@ -31,49 +31,4 @@ Subject: [PATCH] /opt/Projects/openwrt/target/linux/xburst/patches-2.6.31/050-na +obj-$(CONFIG_MTD_NAND_JZ4740) += jz4740_nand.o nand-objs := nand_base.o nand_bbt.o ---- 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 m - 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_i - 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; - } + -- cgit v1.2.3