msm: ocmem: Initialize the ocmem graphics mPU
Allow the graphics core to access OCMEM regions by initializing
the custom mPU until Trustzone support for OCMEM is integrated.
Change-Id: Ie7390ed7a690800f75a663e25d0f53527fec52ae
Signed-off-by: Naveen Ramaraj <nramaraj@codeaurora.org>
diff --git a/arch/arm/mach-msm/ocmem.c b/arch/arm/mach-msm/ocmem.c
index b42ac8f..753f6fb 100644
--- a/arch/arm/mach-msm/ocmem.c
+++ b/arch/arm/mach-msm/ocmem.c
@@ -30,8 +30,9 @@
*/
#define OCMEM_REGION_CTL_BASE 0xFDD0003C
-#define OCMEM_REGION_CTL_SIZE 0xC
+#define OCMEM_REGION_CTL_SIZE 0xFD0
#define REGION_ENABLE 0x00003333
+#define GRAPHICS_REGION_CTL (0x17F000)
struct ocmem_partition {
const char *name;
@@ -532,6 +533,9 @@
writel_relaxed(REGION_ENABLE, ocmem_region_vbase);
writel_relaxed(REGION_ENABLE, ocmem_region_vbase + 4);
writel_relaxed(REGION_ENABLE, ocmem_region_vbase + 8);
+ /* Enable the ocmem graphics mpU as a workaround in Virtio */
+ /* This will be programmed by TZ after TZ support is integrated */
+ writel_relaxed(GRAPHICS_REGION_CTL, ocmem_region_vbase + 0xFCC);
if (ocmem_rdm_init(pdev))
return -EBUSY;