ARM: 6755/1: omap4: l2x0: Populate set_debug() function and enable Errata 727915

Populate the l2x0 set_debug function pointer with OMAP secure call
and enable the PL310 Errata 727915

This patch has dependency on the earlier patch
ARM: l2x0: Errata fix for flush by Way operation can cause data
corruption

Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 7 insertions, 0 deletions

diff --git a/arch/arm/mach-omap2/omap4-common.c b/arch/arm/mach-omap2/omap4-common.c
index 19268647ce36..9ef8c29dd817 100644
--- a/arch/arm/mach-omap2/omap4-common.c
+++ b/arch/arm/mach-omap2/omap4-common.c
@@ -52,6 +52,12 @@ static void omap4_l2x0_disable(void)
         omap_smc1(0x102, 0x0);
 }
 
+static void omap4_l2x0_set_debug(unsigned long val)
+{
+        /* Program PL310 L2 Cache controller debug register */
+        omap_smc1(0x100, val);
+}
+
 static int __init omap_l2_cache_init(void)
 {
         u32 aux_ctrl = 0;
@@ -99,6 +105,7 @@ static int __init omap_l2_cache_init(void)
          * specific one
         */
         outer_cache.disable = omap4_l2x0_disable;
+        outer_cache.set_debug = omap4_l2x0_set_debug;
 
         return 0;
 }