[lantiq] bump to v3.8

Signed-off-by: John Crispin <blogic@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@36014 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 122 insertions, 0 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
new file mode 100644
index 000000000..89044d577
--- /dev/null
+++ b/target/linux/lantiq/patches-3.8/0033-MTD-lantiq-xway-make-nand-actually-work.patch
@@ -0,0 +1,122 @@
+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(-)
+
+diff --git a/drivers/mtd/nand/xway_nand.c b/drivers/mtd/nand/xway_nand.c
+index 3f81dc8..49b2e47 100644
+--- 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_info *mtd, int cmd, unsigned int ctrl)
+ 	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(struct mtd_info *mtd)
+ 	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_nand_data = {
+ 		.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,
+ 	}
+ };
+ 
+-- 
+1.7.10.4
+