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-rw-r--r--arch/arm/mach-kirkwood/common.c7
-rw-r--r--include/asm-arm/arch-kirkwood/kirkwood.h3
2 files changed, 8 insertions, 2 deletions
diff --git a/arch/arm/mach-kirkwood/common.c b/arch/arm/mach-kirkwood/common.c
index e73384fbbba..5938a3b33cd 100644
--- a/arch/arm/mach-kirkwood/common.c
+++ b/arch/arm/mach-kirkwood/common.c
@@ -313,6 +313,11 @@ static char * __init kirkwood_id(void)
return "unknown 88F6000 variant";
}
+static int __init is_l2_writethrough(void)
+{
+ return !!(readl(L2_CONFIG_REG) & L2_WRITETHROUGH);
+}
+
void __init kirkwood_init(void)
{
printk(KERN_INFO "Kirkwood: %s, TCLK=%d.\n",
@@ -321,6 +326,6 @@ void __init kirkwood_init(void)
kirkwood_setup_cpu_mbus();
#ifdef CONFIG_CACHE_FEROCEON_L2
- feroceon_l2_init(1);
+ feroceon_l2_init(is_l2_writethrough());
#endif
}
diff --git a/include/asm-arm/arch-kirkwood/kirkwood.h b/include/asm-arm/arch-kirkwood/kirkwood.h
index 520250dbd8a..bb31b315c35 100644
--- a/include/asm-arm/arch-kirkwood/kirkwood.h
+++ b/include/asm-arm/arch-kirkwood/kirkwood.h
@@ -49,7 +49,6 @@
#define BRIDGE_VIRT_BASE (KIRKWOOD_REGS_VIRT_BASE | 0x20000)
#define CPU_CONTROL (BRIDGE_VIRT_BASE | 0x0104)
#define CPU_RESET 0x00000002
-//#define L2_WRITETHROUGH 0x00020000
#define RSTOUTn_MASK (BRIDGE_VIRT_BASE | 0x0108)
#define SOFT_RESET_OUT_EN 0x00000004
#define SYSTEM_SOFT_RESET (BRIDGE_VIRT_BASE | 0x010c)
@@ -65,6 +64,8 @@
#define IRQ_CAUSE_HIGH_OFF 0x0010
#define IRQ_MASK_HIGH_OFF 0x0014
#define TIMER_VIRT_BASE (BRIDGE_VIRT_BASE | 0x0300)
+#define L2_CONFIG_REG (BRIDGE_VIRT_BASE | 0x0128)
+#define L2_WRITETHROUGH 0x00000010
/*
* Register Map