[4/4] sh7723: add l2_cache_init support

Commit Message

Kuninori Morimoto June 2, 2009, 2:49 a.m. UTC

Signed-off-by: Kuninori Morimoto <[e-mail]>
---
 arch/sh/kernel/cpu/sh4a/setup-sh7723.c |   10 ++++++++++
 1 files changed, 10 insertions(+), 0 deletions(-)

Patch

diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7723.c b/arch/sh/kernel/cpu/sh4a/setup-sh7723.c
index 04cb4aa..d8f4a13 100644
--- a/arch/sh/kernel/cpu/sh4a/setup-sh7723.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-sh7723.c
@@ -14,6 +14,7 @@ 
 #include <linux/serial_sci.h>
 #include <linux/uio_driver.h>
 #include <linux/sh_timer.h>
+#include <linux/io.h>
 #include <asm/clock.h>
 #include <asm/mmzone.h>
 
@@ -485,6 +486,15 @@  void __init plat_early_device_setup(void)
 				   ARRAY_SIZE(sh7723_early_devices));
 }
 
+#define RAMCR_CACHE_L2FC	0x0002
+#define RAMCR_CACHE_L2E		0x0001
+#define L2_CACHE_ENABLE		(RAMCR_CACHE_L2E|RAMCR_CACHE_L2FC)
+void __uses_jump_to_uncached l2_cache_init(void)
+{
+	/* Enable L2 cache */
+	ctrl_outl(L2_CACHE_ENABLE, RAMCR);
+}
+
 enum {
 	UNUSED=0,