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git://projects.qi-hardware.com/openwrt-xburst.git
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9364d77535
Also add compatibility patches for the currently supported kernels. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> git-svn-id: svn://svn.openwrt.org/openwrt/trunk@34279 3c298f89-4303-0410-b956-a3cf2f4a3e73
64 lines
1.8 KiB
Diff
64 lines
1.8 KiB
Diff
--- a/drivers/mtd/nand/rb750_nand.c
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+++ b/drivers/mtd/nand/rb750_nand.c
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@@ -110,7 +110,8 @@ static void rb750_nand_write(const u8 *b
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__raw_readl(base + AR71XX_GPIO_REG_OE);
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}
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-static void rb750_nand_read(u8 *read_buf, unsigned len)
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+static int rb750_nand_read_verify(u8 *read_buf, unsigned len,
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+ const u8 *verify_buf)
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{
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void __iomem *base = ath79_gpio_base;
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unsigned i;
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@@ -130,8 +131,13 @@ static void rb750_nand_read(u8 *read_buf
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/* deactivate RE line */
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__raw_writel(RB750_NAND_NRE, base + AR71XX_GPIO_REG_SET);
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- read_buf[i] = data;
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+ if (read_buf)
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+ read_buf[i] = data;
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+ else if (verify_buf && verify_buf[i] != data)
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+ return -EFAULT;
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}
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+
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+ return 0;
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}
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static void rb750_nand_select_chip(struct mtd_info *mtd, int chip)
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@@ -206,13 +212,13 @@ static void rb750_nand_cmd_ctrl(struct m
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static u8 rb750_nand_read_byte(struct mtd_info *mtd)
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{
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u8 data = 0;
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- rb750_nand_read(&data, 1);
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+ rb750_nand_read_verify(&data, 1, NULL);
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return data;
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}
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static void rb750_nand_read_buf(struct mtd_info *mtd, u8 *buf, int len)
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{
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- rb750_nand_read(buf, len);
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+ rb750_nand_read_verify(buf, len, NULL);
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}
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static void rb750_nand_write_buf(struct mtd_info *mtd, const u8 *buf, int len)
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@@ -220,6 +226,11 @@ static void rb750_nand_write_buf(struct
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rb750_nand_write(buf, len);
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}
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+static int rb750_nand_verify_buf(struct mtd_info *mtd, const u8 *buf, int len)
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+{
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+ return rb750_nand_read_verify(NULL, len, buf);
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+}
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+
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static void __init rb750_nand_gpio_init(struct rb750_nand_info *info)
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{
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void __iomem *base = ath79_gpio_base;
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@@ -274,6 +285,7 @@ static int __devinit rb750_nand_probe(st
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info->chip.read_byte = rb750_nand_read_byte;
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info->chip.write_buf = rb750_nand_write_buf;
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info->chip.read_buf = rb750_nand_read_buf;
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+ info->chip.verify_buf = rb750_nand_verify_buf;
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info->chip.chip_delay = 25;
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info->chip.ecc.mode = NAND_ECC_SOFT;
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