From: Afzal Mohammed <afzal@ti.com>
Date: Tue, 6 Mar 2012 00:11:01 +0000 (-0800)
Subject: ARM: OMAP2+: id: Add am33xx SoC type detection
X-Git-Tag: v3.4-rc1~93^2~5^2~15
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=fb3cfb1ff9745e0c3aab92cc141c1b353839b0ab;p=platform%2Fupstream%2Fkernel-adaptation-pc.git

ARM: OMAP2+: id: Add am33xx SoC type detection

Determine SoC type, i.e. whether GP or HS

Note: cpu_is_34xx() is true for am33xx also. Doing
cpu_is_am33xx() check after cpu_is_34xx() will not
achieve what we want due to the above reason.
Hence cpu_is_am33xx() is done before cpu_is_34xx()

Signed-off-by: Afzal Mohammed <afzal@ti.com>
Signed-off-by: Vaibhav Hiremath <hvaibhav@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---

diff --git a/arch/arm/mach-omap2/control.h b/arch/arm/mach-omap2/control.h
index 0ba68d3..96c4bcc 100644
--- a/arch/arm/mach-omap2/control.h
+++ b/arch/arm/mach-omap2/control.h
@@ -339,6 +339,11 @@
 #define AM35XX_VPFE_PCLK_SW_RST		BIT(4)
 
 /*
+ * CONTROL AM33XX STATUS register
+ */
+#define AM33XX_CONTROL_STATUS		0x040
+
+/*
  * CONTROL OMAP STATUS register to identify OMAP3 features
  */
 #define OMAP3_CONTROL_OMAP_STATUS	0x044c
diff --git a/arch/arm/mach-omap2/id.c b/arch/arm/mach-omap2/id.c
index 6c58266..1347397 100644
--- a/arch/arm/mach-omap2/id.c
+++ b/arch/arm/mach-omap2/id.c
@@ -44,6 +44,8 @@ int omap_type(void)
 
 	if (cpu_is_omap24xx()) {
 		val = omap_ctrl_readl(OMAP24XX_CONTROL_STATUS);
+	} else if (cpu_is_am33xx()) {
+		val = omap_ctrl_readl(AM33XX_CONTROL_STATUS);
 	} else if (cpu_is_omap34xx()) {
 		val = omap_ctrl_readl(OMAP343X_CONTROL_STATUS);
 	} else if (cpu_is_omap44xx()) {