sh: sh7723: L2 cache initialization.

Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

1 files changed, 10 insertions, 0 deletions

diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7723.c b/arch/sh/kernel/cpu/sh4a/setup-sh7723.c
index 04cb4aae7ea7..d8f4a13aeff9 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,