openwrt/target/linux/coldfire/patches/086-m547x_8x_dma_dipr.patch

25 lines
753 B
Diff

From 6cf498f4cf1930950d31aff5669bdba97d12364c Mon Sep 17 00:00:00 2001
From: Kurt Mahan <kmahan@freescale.com>
Date: Thu, 17 Jul 2008 15:02:23 -0600
Subject: [PATCH] Properly clear bits in DIPR.
Bugzilla 1351.
LTIBName: m547x-8x-dma-dipr
Signed-off-by: Kurt Mahan <kmahan@freescale.com>
---
arch/m68k/coldfire/m547x_8x-dma.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
--- a/arch/m68k/coldfire/m547x_8x-dma.c
+++ b/arch/m68k/coldfire/m547x_8x-dma.c
@@ -455,7 +455,7 @@ irqreturn_t dma_interrupt_handler(int ir
* pending interrupts with those that aren't masked.
*/
interrupts = MCF_DMA_DIPR;
- MCF_DMA_DIPR |= interrupts;
+ MCF_DMA_DIPR = interrupts;
for (i = 0; i < 16; ++i, interrupts >>= 1) {
if (interrupts & 0x1)