mirror of https://github.com/hak5/openwrt.git
50 lines
1.5 KiB
Diff
50 lines
1.5 KiB
Diff
From 1e4f35a2ec92447818e89432ec297f14ac66c7c1 Mon Sep 17 00:00:00 2001
|
|
From: John Crispin <blogic@openwrt.org>
|
|
Date: Sun, 28 Jul 2013 18:06:39 +0200
|
|
Subject: [PATCH 16/34] MTD: lantiq: xway: the latched command should be
|
|
persistent
|
|
|
|
Signed-off-by: John Crispin <blogic@openwrt.org>
|
|
---
|
|
drivers/mtd/nand/xway_nand.c | 12 ++++++------
|
|
1 file changed, 6 insertions(+), 6 deletions(-)
|
|
|
|
diff --git a/drivers/mtd/nand/xway_nand.c b/drivers/mtd/nand/xway_nand.c
|
|
index 169a91d..7f2bdd1 100644
|
|
--- a/drivers/mtd/nand/xway_nand.c
|
|
+++ b/drivers/mtd/nand/xway_nand.c
|
|
@@ -54,6 +54,8 @@
|
|
#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;
|
|
@@ -94,17 +96,15 @@ 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);
|
|
--
|
|
1.7.10.4
|
|
|