openwrtv3/target/linux/lantiq/patches-4.1/0016-MTD-lantiq-xway-add-missing-write_buf-and-read_buf-t.patch
John Crispin ff08b09570 lantiq: Add support for linux 4.1
All (still relevant) patches were refresh.
The following patches were dropped because they are applied upstream:
- 0003-MIPS-lantiq-handle-vmmc-memory-reservation.patch
- 0005-MIPS-lantiq-add-reset-controller-api-support.patch
- 0006-MIPS-lantiq-reboot-gphy-on-restart.patch
- 0009-MIPS-lantiq-command-line-work-around.patch
- 0010-MIPS-lantiq-export-soc-type.patch
- 0011-lantiq-add-support-for-xrx200-firmware-depending-on-.patch
- 0037-MIPS-lantiq-move-eiu-init-after-irq_domain-register.patch

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>

SVN-Revision: 46216
2015-07-07 13:43:47 +00:00

55 lines
1.6 KiB
Diff

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,
}
};