ARM: k2g: Add support for CPU detection

Adding CPU detection support for Keystone2 Galileo.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>

arch/arm/mach-keystone/include/mach/hardware.h

@@ -247,6 +247,7 @@ typedef volatile unsigned int   *dv_reg_p;
 #define CPU_66AK2Hx	0xb981
 #define CPU_66AK2Ex	0xb9a6
 #define CPU_66AK2Lx	0xb9a7
+#define CPU_66AK2Gx	0xbb06
 
 /* DEVSPEED register */
 #define DEVSPEED_DEVSPEED_SHIFT	16
@@ -291,6 +292,11 @@ static inline u8 cpu_is_k2l(void)
 	return get_part_number() == CPU_66AK2Lx;
 }
 
+static inline u8 cpu_is_k2g(void)
+{
+	return get_part_number() == CPU_66AK2Gx;
+}
+
 static inline u8 cpu_revision(void)
 {
 	u32 jtag_id	= __raw_readl(KS2_JTAG_ID_REG);

arch/arm/mach-keystone/init.c

@@ -169,6 +169,9 @@ int print_cpuinfo(void)
 	case CPU_66AK2Ex:
 		puts("66AK2Ex SR");
 		break;
+	case CPU_66AK2Gx:
+		puts("66AK2Gx SR");
+		break;
 	default:
 		puts("Unknown\n");
 	}