[U-Boot] [PATCH V3 1/5] ARM: OMAP5: Add silicon id support for ES2.0 revision.

[R Sricharan]

Adding the CPU detection suport for OMAP5430 and
OMAP5432 ES2.0 SOCs.

Signed-off-by: R Sricharan <r.sricharan at ti.com>
Cc: Tom Rini <trini at ti.com>
Cc: Nishanth Menon <nm at ti.com>
---
 [v2] Addressed Tom Rini's <trini at ti.com> comments
 [v3] Changed the patch to use CONTROL_ID_CODE first
      and then arm revision if nessecary.

 arch/arm/cpu/armv7/omap5/hwinit.c      |   27 ++++++++++++++++-----------
 arch/arm/include/asm/arch-omap5/omap.h |    2 ++
 arch/arm/include/asm/armv7.h           |    1 +
 arch/arm/include/asm/omap_common.h     |    2 ++
 4 files changed, 21 insertions(+), 11 deletions(-)

diff --git a/arch/arm/cpu/armv7/omap5/hwinit.c b/arch/arm/cpu/armv7/omap5/hwinit.c
index dfc0e44..8e66a96 100644
--- a/arch/arm/cpu/armv7/omap5/hwinit.c
+++ b/arch/arm/cpu/armv7/omap5/hwinit.c
@@ -204,17 +204,22 @@ void init_omap_revision(void)
 	 */
 	unsigned int rev = cortex_rev();
 
-	switch (rev) {
-	case MIDR_CORTEX_A15_R0P0:
-		switch (readl(CONTROL_ID_CODE)) {
-		case OMAP5430_CONTROL_ID_CODE_ES1_0:
-			*omap_si_rev = OMAP5430_ES1_0;
-			break;
-		case OMAP5432_CONTROL_ID_CODE_ES1_0:
-		default:
-			*omap_si_rev = OMAP5432_ES1_0;
-			break;
-		}
+	switch (readl(CONTROL_ID_CODE)) {
+	case OMAP5430_CONTROL_ID_CODE_ES1_0:
+		*omap_si_rev = OMAP5430_ES1_0;
+		if (rev == MIDR_CORTEX_A15_R2P2)
+			*omap_si_rev = OMAP5430_ES2_0;
+		break;
+	case OMAP5432_CONTROL_ID_CODE_ES1_0:
+		*omap_si_rev = OMAP5432_ES1_0;
+		if (rev == MIDR_CORTEX_A15_R2P2)
+			*omap_si_rev = OMAP5432_ES2_0;
+		break;
+	case OMAP5430_CONTROL_ID_CODE_ES2_0:
+		*omap_si_rev = OMAP5430_ES2_0;
+		break;
+	case OMAP5432_CONTROL_ID_CODE_ES2_0:
+		*omap_si_rev = OMAP5432_ES2_0;
 		break;
 	default:
 		*omap_si_rev = OMAP5430_SILICON_ID_INVALID;
diff --git a/arch/arm/include/asm/arch-omap5/omap.h b/arch/arm/include/asm/arch-omap5/omap.h
index 873ccd7..71935d8 100644
--- a/arch/arm/include/asm/arch-omap5/omap.h
+++ b/arch/arm/include/asm/arch-omap5/omap.h
@@ -57,7 +57,9 @@
 
 /* To be verified */
 #define OMAP5430_CONTROL_ID_CODE_ES1_0		0x0B94202F
+#define OMAP5430_CONTROL_ID_CODE_ES2_0          0x1B94202F
 #define OMAP5432_CONTROL_ID_CODE_ES1_0		0x0B99802F
+#define OMAP5432_CONTROL_ID_CODE_ES2_0          0x1B99802F
 
 /* STD_FUSE_PROD_ID_1 */
 #define STD_FUSE_PROD_ID_1		(CTRL_BASE + 0x218)
diff --git a/arch/arm/include/asm/armv7.h b/arch/arm/include/asm/armv7.h
index ad9a875..a73630b 100644
--- a/arch/arm/include/asm/armv7.h
+++ b/arch/arm/include/asm/armv7.h
@@ -33,6 +33,7 @@
 
 /* Cortex-A15 revisions */
 #define MIDR_CORTEX_A15_R0P0	0x410FC0F0
+#define MIDR_CORTEX_A15_R2P2	0x412FC0F2
 
 /* CCSIDR */
 #define CCSIDR_LINE_SIZE_OFFSET		0
diff --git a/arch/arm/include/asm/omap_common.h b/arch/arm/include/asm/omap_common.h
index 2115687..4599167 100644
--- a/arch/arm/include/asm/omap_common.h
+++ b/arch/arm/include/asm/omap_common.h
@@ -542,4 +542,6 @@ static inline u32 omap_revision(void)
 #define OMAP5430_SILICON_ID_INVALID	0
 #define OMAP5430_ES1_0	0x54300100
 #define OMAP5432_ES1_0	0x54320100
+#define OMAP5430_ES2_0  0x54300200
+#define OMAP5432_ES2_0  0x54320200
 #endif /* _OMAP_COMMON_H_ */
-- 
1.7.9.5