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author | John Crispin <john@openwrt.org> | 2013-09-17 21:46:10 +0000 |
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committer | John Crispin <john@openwrt.org> | 2013-09-17 21:46:10 +0000 |
commit | 1878a3d6ab7e4296671eaa827623cc874d1f12c5 (patch) | |
tree | 895fea96a0462bc19622aed65e9e179d22d61069 /target/linux/lantiq/patches-3.8/0033-MTD-lantiq-xway-make-nand-actually-work.patch | |
parent | cd668944ef699762d4269ad71263ffe99c93ea8c (diff) | |
download | master-31e0f0ae-1878a3d6ab7e4296671eaa827623cc874d1f12c5.tar.gz master-31e0f0ae-1878a3d6ab7e4296671eaa827623cc874d1f12c5.tar.bz2 master-31e0f0ae-1878a3d6ab7e4296671eaa827623cc874d1f12c5.zip |
lantiq: add v3.10 patches
Signed-off-by: John Crispin <blogic@openwrt.org>
SVN-Revision: 38031
Diffstat (limited to 'target/linux/lantiq/patches-3.8/0033-MTD-lantiq-xway-make-nand-actually-work.patch')
-rw-r--r-- | target/linux/lantiq/patches-3.8/0033-MTD-lantiq-xway-make-nand-actually-work.patch | 117 |
1 files changed, 0 insertions, 117 deletions
diff --git a/target/linux/lantiq/patches-3.8/0033-MTD-lantiq-xway-make-nand-actually-work.patch b/target/linux/lantiq/patches-3.8/0033-MTD-lantiq-xway-make-nand-actually-work.patch deleted file mode 100644 index 92da4235b2..0000000000 --- a/target/linux/lantiq/patches-3.8/0033-MTD-lantiq-xway-make-nand-actually-work.patch +++ /dev/null @@ -1,117 +0,0 @@ -From cc77f36d2ea812027dc2a8a94c788c4c145f82dc Mon Sep 17 00:00:00 2001 -From: John Crispin <blogic@openwrt.org> -Date: Mon, 22 Oct 2012 10:25:39 +0200 -Subject: [PATCH 33/40] MTD: lantiq: xway: make nand actually work - -http://lists.infradead.org/pipermail/linux-mtd/2012-September/044240.html - -Signed-off-by: John Crispin <blogic@openwrt.org> ---- - drivers/mtd/nand/xway_nand.c | 54 +++++++++++++++++++++++++++++++++++------- - 1 file changed, 45 insertions(+), 9 deletions(-) - ---- a/drivers/mtd/nand/xway_nand.c -+++ b/drivers/mtd/nand/xway_nand.c -@@ -54,19 +54,29 @@ - #define NAND_CON_CSMUX (1 << 1) - #define NAND_CON_NANDM 1 - -+static u32 xway_latchcmd; -+ - static void xway_reset_chip(struct nand_chip *chip) - { - unsigned long nandaddr = (unsigned long) chip->IO_ADDR_W; - unsigned long flags; -+ unsigned long timeout; - - nandaddr &= ~NAND_WRITE_ADDR; - nandaddr |= NAND_WRITE_CMD; - - /* finish with a reset */ -+ timeout = jiffies + msecs_to_jiffies(200); -+ - spin_lock_irqsave(&ebu_lock, flags); -+ - writeb(NAND_WRITE_CMD_RESET, (void __iomem *) nandaddr); -- while ((ltq_ebu_r32(EBU_NAND_WAIT) & NAND_WAIT_WR_C) == 0) -- ; -+ do { -+ if ((ltq_ebu_r32(EBU_NAND_WAIT) & NAND_WAIT_WR_C) == 0) -+ break; -+ cond_resched(); -+ } while (!time_after_eq(jiffies, timeout)); -+ - spin_unlock_irqrestore(&ebu_lock, flags); - } - -@@ -94,17 +104,15 @@ static void xway_cmd_ctrl(struct mtd_inf - unsigned long flags; - - if (ctrl & NAND_CTRL_CHANGE) { -- nandaddr &= ~(NAND_WRITE_CMD | NAND_WRITE_ADDR); - if (ctrl & NAND_CLE) -- nandaddr |= NAND_WRITE_CMD; -- else -- nandaddr |= NAND_WRITE_ADDR; -- this->IO_ADDR_W = (void __iomem *) nandaddr; -+ xway_latchcmd = NAND_WRITE_CMD; -+ else if (ctrl & NAND_ALE) -+ xway_latchcmd = NAND_WRITE_ADDR; - } - - if (cmd != NAND_CMD_NONE) { - spin_lock_irqsave(&ebu_lock, flags); -- writeb(cmd, this->IO_ADDR_W); -+ writeb(cmd, (void __iomem *) (nandaddr | xway_latchcmd)); - while ((ltq_ebu_r32(EBU_NAND_WAIT) & NAND_WAIT_WR_C) == 0) - ; - spin_unlock_irqrestore(&ebu_lock, flags); -@@ -124,12 +132,38 @@ static unsigned char xway_read_byte(stru - int ret; - - spin_lock_irqsave(&ebu_lock, flags); -- ret = ltq_r8((void __iomem *)(nandaddr + NAND_READ_DATA)); -+ ret = ltq_r8((void __iomem *)(nandaddr | NAND_READ_DATA)); - spin_unlock_irqrestore(&ebu_lock, flags); - - 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); -+ spin_unlock_irqrestore(&ebu_lock, flags); -+} -+ - static int xway_nand_probe(struct platform_device *pdev) - { - struct nand_chip *this = platform_get_drvdata(pdev); -@@ -175,6 +209,8 @@ 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, - } - }; - |