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>

arch/arm/mach-omap2/control.h

@@ -338,6 +338,11 @@
 #define AM35XX_HECC_SW_RST		BIT(3)
 #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
  */

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()) {