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authorLennert Buytenhek <buytenh@wantstofly.org>2005-11-01 19:44:26 +0000
committerRussell King <rmk+kernel@arm.linux.org.uk>2005-11-01 19:44:26 +0000
commite9b72e43d96a1ea2be0f513c78f16743a835d252 (patch)
treeed3a2cb9a84f56754ac1e4469c3a58f963b86237 /arch/arm/mach-ixp2000/ixdp2x00.c
parent69a857610ad212ce4bcd8e6b13f25408691403de (diff)
downloadop-kernel-dev-e9b72e43d96a1ea2be0f513c78f16743a835d252.zip
op-kernel-dev-e9b72e43d96a1ea2be0f513c78f16743a835d252.tar.gz
[ARM] 3064/1: start using ixp2000_reg_wrb
Patch from Lennert Buytenhek Switch the users of ixp2000_reg_write that depend on writes being flushed out of the write buffer by the time that function returns over to ixp2000_reg_wrb. When using XCB=101, writes to the same functional unit are still guaranteed to complete in order, so we only need to protect against: - reordering of writes to different functional units - masking an interrupt and then reenabling the IRQ bit in CPSR Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: Deepak Saxena <dsaxena@plexity.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mach-ixp2000/ixdp2x00.c')
-rw-r--r--arch/arm/mach-ixp2000/ixdp2x00.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/arm/mach-ixp2000/ixdp2x00.c b/arch/arm/mach-ixp2000/ixdp2x00.c
index 8b4a839..00af934 100644
--- a/arch/arm/mach-ixp2000/ixdp2x00.c
+++ b/arch/arm/mach-ixp2000/ixdp2x00.c
@@ -81,7 +81,7 @@ static void ixdp2x00_irq_mask(unsigned int irq)
dummy = *board_irq_mask;
dummy |= IXP2000_BOARD_IRQ_MASK(irq);
- ixp2000_reg_write(board_irq_mask, dummy);
+ ixp2000_reg_wrb(board_irq_mask, dummy);
#ifdef CONFIG_ARCH_IXDP2400
if (machine_is_ixdp2400())
@@ -101,7 +101,7 @@ static void ixdp2x00_irq_unmask(unsigned int irq)
dummy = *board_irq_mask;
dummy &= ~IXP2000_BOARD_IRQ_MASK(irq);
- ixp2000_reg_write(board_irq_mask, dummy);
+ ixp2000_reg_wrb(board_irq_mask, dummy);
if (machine_is_ixdp2400())
ixp2000_release_slowport(&old_cfg);
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