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>

2 files changed, 6 insertions, 2 deletions

diff --git a/arch/arm/mach-omap2/id.c b/arch/arm/mach-omap2/id.c
index 7ab09f764600..5bb4ee18564a 100644
--- a/arch/arm/mach-omap2/id.c
+++ b/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,
diff --git a/arch/arm/plat-omap/include/plat/cpu.h b/arch/arm/plat-omap/include/plat/cpu.h
index aa52d1e61eb1..e5baa3cde900 100644
--- a/arch/arm/plat-omap/include/plat/cpu.h
+++ b/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))