MIPS: Lantiq: Add support for xRX220 SoC

Signed-off-by: Hauke Mehrtens <hauke.mehrtens@lantiq.com>
Acked-by: John Crispin <blogic@openwrt.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/11394/Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

arch/mips/include/asm/mach-lantiq/xway/lantiq_soc.h

@@ -35,6 +35,7 @@
 #define SOC_ID_VRX268_2		0x00C /* v1.2 */
 #define SOC_ID_GRX288_2		0x00D /* v1.2 */
 #define SOC_ID_GRX282_2		0x00E /* v1.2 */
+#define SOC_ID_VRX220		0x000
 
 #define SOC_ID_ARX362		0x004
 #define SOC_ID_ARX368		0x005
@@ -55,6 +56,7 @@
 #define SOC_TYPE_AMAZON_SE	0x06
 #define SOC_TYPE_AR10		0x07
 #define SOC_TYPE_GRX390		0x08
+#define SOC_TYPE_VRX220		0x09
 
 /* BOOT_SEL - find what boot media we have */
 #define BS_EXT_ROM		0x0

arch/mips/lantiq/xway/prom.c

@@ -22,6 +22,7 @@
 #define SOC_AR9		"AR9"
 #define SOC_GR9		"GRX200"
 #define SOC_VR9		"xRX200"
+#define SOC_VRX220	"xRX220"
 #define SOC_AR10	"xRX300"
 #define SOC_GRX390	"xRX330"
 
@@ -106,6 +107,12 @@ void __init ltq_soc_detect(struct ltq_soc_info *i)
 		i->compatible = COMP_VR9;
 		break;
 
+	case SOC_ID_VRX220:
+		i->name = SOC_VRX220;
+		i->type = SOC_TYPE_VRX220;
+		i->compatible = COMP_VR9;
+		break;
+
 	case SOC_ID_GRX282_2:
 	case SOC_ID_GRX288_2:
 		i->name = SOC_GR9;