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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/ixdp2x01.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/ixdp2x01.c')
-rw-r--r--arch/arm/mach-ixp2000/ixdp2x01.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/arch/arm/mach-ixp2000/ixdp2x01.c b/arch/arm/mach-ixp2000/ixdp2x01.c
index fee1d7b7350..dfaaa2d281e 100644
--- a/arch/arm/mach-ixp2000/ixdp2x01.c
+++ b/arch/arm/mach-ixp2000/ixdp2x01.c
@@ -51,7 +51,7 @@
*************************************************************************/
static void ixdp2x01_irq_mask(unsigned int irq)
{
- ixp2000_reg_write(IXDP2X01_INT_MASK_SET_REG,
+ ixp2000_reg_wrb(IXDP2X01_INT_MASK_SET_REG,
IXP2000_BOARD_IRQ_MASK(irq));
}
@@ -114,7 +114,7 @@ void __init ixdp2x01_init_irq(void)
/* Mask all interrupts from CPLD, disable simulation */
ixp2000_reg_write(IXDP2X01_INT_MASK_SET_REG, 0xffffffff);
- ixp2000_reg_write(IXDP2X01_INT_SIM_REG, 0);
+ ixp2000_reg_wrb(IXDP2X01_INT_SIM_REG, 0);
for (irq = NR_IXP2000_IRQS; irq < NR_IXDP2X01_IRQS; irq++) {
if (irq & valid_irq_mask) {
@@ -316,7 +316,7 @@ static struct flash_platform_data ixdp2x01_flash_platform_data = {
static unsigned long ixdp2x01_flash_bank_setup(unsigned long ofs)
{
- ixp2000_reg_write(IXDP2X01_CPLD_FLASH_REG,
+ ixp2000_reg_wrb(IXDP2X01_CPLD_FLASH_REG,
((ofs >> IXDP2X01_FLASH_WINDOW_BITS) | IXDP2X01_CPLD_FLASH_INTERN));
return (ofs & IXDP2X01_FLASH_WINDOW_MASK);
}
@@ -363,7 +363,7 @@ static struct platform_device *ixdp2x01_devices[] __initdata = {
static void __init ixdp2x01_init_machine(void)
{
- ixp2000_reg_write(IXDP2X01_CPLD_FLASH_REG,
+ ixp2000_reg_wrb(IXDP2X01_CPLD_FLASH_REG,
(IXDP2X01_CPLD_FLASH_BANK_MASK | IXDP2X01_CPLD_FLASH_INTERN));
ixdp2x01_flash_data.nr_banks =