diff options
Diffstat (limited to 'target/linux/xburst/patches-3.18/002-NAND-Optimize-NAND_ECC_HW_OOB_FIRST-read.patch')
| -rw-r--r-- | target/linux/xburst/patches-3.18/002-NAND-Optimize-NAND_ECC_HW_OOB_FIRST-read.patch | 43 |
1 files changed, 0 insertions, 43 deletions
diff --git a/target/linux/xburst/patches-3.18/002-NAND-Optimize-NAND_ECC_HW_OOB_FIRST-read.patch b/target/linux/xburst/patches-3.18/002-NAND-Optimize-NAND_ECC_HW_OOB_FIRST-read.patch deleted file mode 100644 index ce87452a16..0000000000 --- a/target/linux/xburst/patches-3.18/002-NAND-Optimize-NAND_ECC_HW_OOB_FIRST-read.patch +++ /dev/null @@ -1,43 +0,0 @@ -From 98d33db1c87e2447b9b203399d2f995e05ecdb52 Mon Sep 17 00:00:00 2001 -From: Lars-Peter Clausen <lars@metafoo.de> -Date: Sat, 26 Feb 2011 15:30:07 +0100 -Subject: [PATCH 2/7] NAND: Optimize NAND_ECC_HW_OOB_FIRST read - -Avoid sending unnecessary READ commands to the chip. ---- - drivers/mtd/nand/nand_base.c | 17 +++++++++++++---- - 1 file changed, 13 insertions(+), 4 deletions(-) - ---- a/drivers/mtd/nand/nand_base.c -+++ b/drivers/mtd/nand/nand_base.c -@@ -1365,9 +1365,16 @@ static int nand_read_page_hwecc_oob_firs - unsigned int max_bitflips = 0; - - /* Read the OOB area first */ -- chip->cmdfunc(mtd, NAND_CMD_READOOB, 0, page); -- chip->read_buf(mtd, chip->oob_poi, mtd->oobsize); -- chip->cmdfunc(mtd, NAND_CMD_READ0, 0, page); -+ /* Read the OOB area first */ -+ if (mtd->writesize > 512) { -+ chip->cmdfunc(mtd, NAND_CMD_READ0, mtd->writesize, page); -+ chip->read_buf(mtd, chip->oob_poi, mtd->oobsize); -+ chip->cmdfunc(mtd, NAND_CMD_RNDOUT, 0, -1); -+ } else { -+ chip->cmdfunc(mtd, NAND_CMD_READOOB, 0, page); -+ chip->read_buf(mtd, chip->oob_poi, mtd->oobsize); -+ chip->cmdfunc(mtd, NAND_CMD_READ0, 0, page); -+ } - - for (i = 0; i < chip->ecc.total; i++) - ecc_code[i] = chip->oob_poi[eccpos[i]]; -@@ -1580,7 +1587,9 @@ static int nand_do_read_ops(struct mtd_i - __func__, buf); - - read_retry: -- chip->cmdfunc(mtd, NAND_CMD_READ0, 0x00, page); -+ if (chip->ecc.mode != NAND_ECC_HW_OOB_FIRST) { -+ chip->cmdfunc(mtd, NAND_CMD_READ0, 0x00, page); -+ } - - /* - * Now read the page into the buffer. Absent an error, |