openwrt/target/linux/lantiq/patches-4.1/0014-MTD-lantiq-xway-the-latched-command-should-be-persis.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

45 lines
1.4 KiB
Diff

From b454cefd675fc1bd3d8c690c1bd1d8f4678e9922 Mon Sep 17 00:00:00 2001
From: John Crispin <blogic@openwrt.org>
Date: Sun, 28 Jul 2013 18:06:39 +0200
Subject: [PATCH 14/36] 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(-)
--- 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_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);