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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/pci.c
parent69a857610ad212ce4bcd8e6b13f25408691403de (diff)
[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/pci.c')
-rw-r--r--arch/arm/mach-ixp2000/pci.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/arm/mach-ixp2000/pci.c b/arch/arm/mach-ixp2000/pci.c
index 522205acb31..d4bf1e1c003 100644
--- a/arch/arm/mach-ixp2000/pci.c
+++ b/arch/arm/mach-ixp2000/pci.c
@@ -148,7 +148,7 @@ int ixp2000_pci_abort_handler(unsigned long addr, unsigned int fsr, struct pt_re
local_irq_save(flags);
temp = *(IXP2000_PCI_CONTROL);
if (temp & ((1 << 8) | (1 << 5))) {
- ixp2000_reg_write(IXP2000_PCI_CONTROL, temp);
+ ixp2000_reg_wrb(IXP2000_PCI_CONTROL, temp);
}
temp = *(IXP2000_PCI_CMDSTAT);
@@ -178,8 +178,8 @@ clear_master_aborts(void)
local_irq_save(flags);
temp = *(IXP2000_PCI_CONTROL);
- if (temp & ((1 << 8) | (1 << 5))) {
- ixp2000_reg_write(IXP2000_PCI_CONTROL, temp);
+ if (temp & ((1 << 8) | (1 << 5))) {
+ ixp2000_reg_wrb(IXP2000_PCI_CONTROL, temp);
}
temp = *(IXP2000_PCI_CMDSTAT);