ARM: OMAP2: AM33XX: id: Add support for AM335x PG2.0

Add support for chip id recognition of AM335x PG2.0 silicon. By default
omap3xxx_check_revision() recognizes PG1.0, which is extended by adding
PG2.0 support

Signed-off-by: AnilKumar Ch <anilkumar@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

2 files changed, 13 insertions, 2 deletions

diff --git a/arch/arm/mach-omap2/id.c b/arch/arm/mach-omap2/id.c
index 45cc7ed4dd58..8a68f1ec66b9 100644
--- a/arch/arm/mach-omap2/id.c
+++ b/arch/arm/mach-omap2/id.c
@@ -399,8 +399,18 @@ void __init omap3xxx_check_revision(void)
                 }
                 break;
         case 0xb944:
-                omap_revision = AM335X_REV_ES1_0;
-                cpu_rev = "1.0";
+                switch (rev) {
+                case 0:
+                        omap_revision = AM335X_REV_ES1_0;
+                        cpu_rev = "1.0";
+                        break;
+                case 1:
+                /* FALLTHROUGH */
+                default:
+                        omap_revision = AM335X_REV_ES2_0;
+                        cpu_rev = "2.0";
+                        break;
+                }
                 break;
         case 0xb8f2:
                 switch (rev) {
diff --git a/arch/arm/mach-omap2/soc.h b/arch/arm/mach-omap2/soc.h
index f31d90774de0..15e959111e23 100644
--- a/arch/arm/mach-omap2/soc.h
+++ b/arch/arm/mach-omap2/soc.h
@@ -387,6 +387,7 @@ IS_OMAP_TYPE(3430, 0x3430)
 
 #define AM335X_CLASS            0x33500033
 #define AM335X_REV_ES1_0        AM335X_CLASS
+#define AM335X_REV_ES2_0        (AM335X_CLASS | (0x1 << 8))
 
 #define OMAP443X_CLASS          0x44300044
 #define OMAP4430_REV_ES1_0      (OMAP443X_CLASS | (0x10 << 8))