armv7: integrate cache maintenance support
- Enable I-cache on bootup
- Enable MMU and D-cache immediately after relocation
- Do necessary initialization before enabling d-cache and MMU
- Changes to cleanup_before_linux()
- Make changes according to the new framework
Signed-off-by: Aneesh V <aneesh@ti.com>
diff --git a/arch/arm/lib/cache-cp15.c b/arch/arm/lib/cache-cp15.c
index ba73fb9..51831a9 100644
--- a/arch/arm/lib/cache-cp15.c
+++ b/arch/arm/lib/cache-cp15.c
@@ -34,6 +34,12 @@
DECLARE_GLOBAL_DATA_PTR;
+void __arm_init_before_mmu(void)
+{
+}
+void arm_init_before_mmu(void)
+ __attribute__((weak, alias("__arm_init_before_mmu")));
+
static void cp_delay (void)
{
volatile int i;
@@ -65,6 +71,7 @@
int i;
u32 reg;
+ arm_init_before_mmu();
/* Set up an identity-mapping for all 4GB, rw for everyone */
for (i = 0; i < 4096; i++)
page_table[i] = i << 20 | (3 << 10) | 0x12;