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>

diff --git a/arch/arm/mach-omap2/id.c b/arch/arm/mach-omap2/id.c
index 45cc7ed..8a68f1e 100644 (file)
--- 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 f31d907..15e9591 100644 (file)
--- 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))