snowball: arm cpu: inv and clean of L2
TODO: make this patch board specific. E.g add a board hook
in cpu.c that the board may implement.
Use generic cache functions for clean and inv, not hardcoded registers.
diff --git a/arch/arm/cpu/armv7/cpu.c b/arch/arm/cpu/armv7/cpu.c
index 662c496..c0f2b6f 100644
--- a/arch/arm/cpu/armv7/cpu.c
+++ b/arch/arm/cpu/armv7/cpu.c
@@ -78,6 +78,13 @@
* problems for kernel
*/
invalidate_dcache_all();
-
+#ifdef CONFIG_U8500
+ /* Clean l2 */
+ *((volatile unsigned int *)(0xA04127BC)) = 0xFF;
+ while (*((volatile unsigned int *)(0xA04127BC)) & 0xFF);
+ /* Invalidate l2 */
+ *((volatile unsigned int *)(0xA041277C)) = 0xFF;
+ while (*((volatile unsigned int *)(0xA041277C)) & 0xFF);
+#endif
return 0;
}