diff options
Diffstat (limited to 'target/linux/lantiq/patches-3.18/0016-MTD-lantiq-xway-add-missing-write_buf-and-read_buf-t.patch')
| -rw-r--r-- | target/linux/lantiq/patches-3.18/0016-MTD-lantiq-xway-add-missing-write_buf-and-read_buf-t.patch | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/target/linux/lantiq/patches-3.18/0016-MTD-lantiq-xway-add-missing-write_buf-and-read_buf-t.patch b/target/linux/lantiq/patches-3.18/0016-MTD-lantiq-xway-add-missing-write_buf-and-read_buf-t.patch new file mode 100644 index 0000000..f20878c --- /dev/null +++ b/target/linux/lantiq/patches-3.18/0016-MTD-lantiq-xway-add-missing-write_buf-and-read_buf-t.patch @@ -0,0 +1,55 @@ +From 65df9d63eaee02c25e879b33dd42aceb78e57842 Mon Sep 17 00:00:00 2001 +From: John Crispin <blogic@openwrt.org> +Date: Sun, 28 Jul 2013 17:59:51 +0200 +Subject: [PATCH 16/36] MTD: lantiq: xway: add missing write_buf and read_buf + to nand driver + +Signed-off-by: John Crispin <blogic@openwrt.org> +--- + drivers/mtd/nand/xway_nand.c | 28 ++++++++++++++++++++++++++++ + 1 file changed, 28 insertions(+) + +--- a/drivers/mtd/nand/xway_nand.c ++++ b/drivers/mtd/nand/xway_nand.c +@@ -136,6 +136,32 @@ static unsigned char xway_read_byte(stru + return ret; + } + ++static void xway_read_buf(struct mtd_info *mtd, u_char *buf, int len) ++{ ++ struct nand_chip *this = mtd->priv; ++ unsigned long nandaddr = (unsigned long) this->IO_ADDR_R; ++ unsigned long flags; ++ int i; ++ ++ spin_lock_irqsave(&ebu_lock, flags); ++ for (i = 0; i < len; i++) ++ buf[i] = ltq_r8((void __iomem *)(nandaddr | NAND_READ_DATA)); ++ spin_unlock_irqrestore(&ebu_lock, flags); ++} ++ ++static void xway_write_buf(struct mtd_info *mtd, const u_char *buf, int len) ++{ ++ struct nand_chip *this = mtd->priv; ++ unsigned long nandaddr = (unsigned long) this->IO_ADDR_W; ++ unsigned long flags; ++ int i; ++ ++ spin_lock_irqsave(&ebu_lock, flags); ++ for (i = 0; i < len; i++) ++ ltq_w8(buf[i], (void __iomem *)(nandaddr | NAND_WRITE_DATA)); ++ spin_unlock_irqrestore(&ebu_lock, flags); ++} ++ + static int xway_nand_probe(struct platform_device *pdev) + { + struct nand_chip *this = platform_get_drvdata(pdev); +@@ -181,6 +207,8 @@ static struct platform_nand_data xway_na + .dev_ready = xway_dev_ready, + .select_chip = xway_select_chip, + .read_byte = xway_read_byte, ++ .read_buf = xway_read_buf, ++ .write_buf = xway_write_buf, + } + }; + |