ARM: DRA7: Add detection of ES2.0

Add support for detection of ES2.0 version of DRA7 family of
processors. ES2.0 is an incremental revision with various fixes
including the following:
- reset logic fixes
- few assymetric aging logic fixes
- MMC clock rate fixes
- Ethernet speed fixes
- edma fixes for mcasp

[ravibabu@ti.com: posted internal for an older bootloader]
Signed-off-by: Ravi Babu <ravibabu@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Acked-by: Lokesh Vutla <lokeshvutla@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
diff --git a/arch/arm/cpu/armv7/omap5/hwinit.c b/arch/arm/cpu/armv7/omap5/hwinit.c
index 3699050..325a7e8 100644
--- a/arch/arm/cpu/armv7/omap5/hwinit.c
+++ b/arch/arm/cpu/armv7/omap5/hwinit.c
@@ -367,6 +367,9 @@
 	case DRA752_CONTROL_ID_CODE_ES1_1:
 		*omap_si_rev = DRA752_ES1_1;
 		break;
+	case DRA752_CONTROL_ID_CODE_ES2_0:
+		*omap_si_rev = DRA752_ES2_0;
+		break;
 	case DRA722_CONTROL_ID_CODE_ES1_0:
 		*omap_si_rev = DRA722_ES1_0;
 		break;