ARM: OMAP: id: add chip id recognition for omap4430 es2.3

allow for the omap4430 es2.3 revision to be recognized in the
omap4_check_revision() function.

most aspects of all omap4430 es2.x versions are identical, however
a number of small variations such as default pullup or pulldown
resistor configurations vary between revisions.

detailed information on silicon errata for omap4430 revisions can
be found at http://focus.ti.com/pdfs/wtbu/swpz009D.pdf

Signed-off-by: David Anders <x0132446@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/mach-omap2/id.c

@@ -393,8 +393,11 @@ static void __init omap4_check_revision(void)
 			omap_revision = OMAP4430_REV_ES2_1;
 			break;
 		case 4:
-		default:
 			omap_revision = OMAP4430_REV_ES2_2;
+			break;
+		case 6:
+		default:
+			omap_revision = OMAP4430_REV_ES2_3;
 		}
 		break;
 	case 0xb94e:
@@ -407,7 +410,7 @@ static void __init omap4_check_revision(void)
 		break;
 	default:
 		/* Unknown default to latest silicon rev as default */
-		omap_revision = OMAP4430_REV_ES2_2;
+		omap_revision = OMAP4430_REV_ES2_3;
 	}
 
 	pr_info("OMAP%04x ES%d.%d\n", omap_rev() >> 16,

arch/arm/plat-omap/include/plat/cpu.h

@@ -416,6 +416,7 @@ IS_OMAP_TYPE(3517, 0x3517)
 #define OMAP4430_REV_ES2_0	(OMAP443X_CLASS | (0x20 << 8))
 #define OMAP4430_REV_ES2_1	(OMAP443X_CLASS | (0x21 << 8))
 #define OMAP4430_REV_ES2_2	(OMAP443X_CLASS | (0x22 << 8))
+#define OMAP4430_REV_ES2_3	(OMAP443X_CLASS | (0x23 << 8))
 
 #define OMAP446X_CLASS		0x44600044
 #define OMAP4460_REV_ES1_0	(OMAP446X_CLASS | (0x10 << 8))