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-rw-r--r--arch/arm/cpu/armv7/rmobile/lowlevel_init_ca15.S12
1 files changed, 11 insertions, 1 deletions
diff --git a/arch/arm/cpu/armv7/rmobile/lowlevel_init_ca15.S b/arch/arm/cpu/armv7/rmobile/lowlevel_init_ca15.S
index d47546a..a5dbbea 100644
--- a/arch/arm/cpu/armv7/rmobile/lowlevel_init_ca15.S
+++ b/arch/arm/cpu/armv7/rmobile/lowlevel_init_ca15.S
@@ -40,7 +40,7 @@ do_lowlevel_init:
and r1, r1, #0x7F00
lsrs r1, r1, #8
cmp r1, #0x4C /* 0x4C is ID of r8a7794 */
- beq _exit_init_l2_a15
+ beq _enable_actlr_smp
/* surpress wfe if ca15 */
tst r4, #4
@@ -64,6 +64,16 @@ do_lowlevel_init:
orrne r0, r0, #0x20 /* L2CTLR[5] */
#endif
mcrne p15, 1, r0, c9, c0, 2
+
+ b _exit_init_l2_a15
+
+_enable_actlr_smp: /* R8A7794 only (CA7) */
+#ifndef CONFIG_DCACHE_OFF
+ mrc p15, 0, r0, c1, c0, 1
+ orr r0, r0, #0x40
+ mcr p15, 0, r0, c1, c0, 1
+#endif
+
_exit_init_l2_a15:
ldr r3, =(CONFIG_SYS_INIT_SP_ADDR)
sub sp, r3, #4