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From: Ke Wei <kewei@marvell.com>
Some Feroceon-based SoCs have an MBUS bridge interrupt controller
that requires writing a one instead of a zero to clear edge
interrupt sources such as timer expiry.
This patch adds a new BRIDGE_INT_TIMER1_CLR define, which platform
code can set to either ~BRIDGE_INT_TIMER1 (write-zero-to-clear) or
BRIDGE_INT_TIMER1 (write-one-to-clear) depending on the platform.
Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
---
arch/arm/plat-orion/time.c | 2 +-
include/asm-arm/arch-orion5x/orion5x.h | 1 +
2 files changed, 2 insertions(+), 1 deletions(-)
--- a/arch/arm/plat-orion/time.c
+++ b/arch/arm/plat-orion/time.c
@@ -74,7 +74,7 @@
/*
* Clear and enable clockevent timer interrupt.
*/
- writel(~BRIDGE_INT_TIMER1, BRIDGE_CAUSE);
+ writel(BRIDGE_INT_TIMER1_CLR, BRIDGE_CAUSE);
u = readl(BRIDGE_MASK);
u |= BRIDGE_INT_TIMER1;
--- a/include/asm-arm/arch-orion5x/orion5x.h
+++ b/include/asm-arm/arch-orion5x/orion5x.h
@@ -152,6 +152,7 @@
#define BRIDGE_MASK ORION5X_BRIDGE_REG(0x114)
#define BRIDGE_INT_TIMER0 0x0002
#define BRIDGE_INT_TIMER1 0x0004
+#define BRIDGE_INT_TIMER1_CLR ~0x0004
#define MAIN_IRQ_CAUSE ORION5X_BRIDGE_REG(0x200)
#define MAIN_IRQ_MASK ORION5X_BRIDGE_REG(0x204)
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