--- /dev/null
+Index: linux-3.14.18/arch/mips/include/asm/mach-ralink/mt7620.h
+===================================================================
+--- linux-3.14.18.orig/arch/mips/include/asm/mach-ralink/mt7620.h 2014-11-13 15:45:37.331344390 +0100
++++ linux-3.14.18/arch/mips/include/asm/mach-ralink/mt7620.h 2014-11-13 15:45:37.679357795 +0100
+@@ -13,14 +13,6 @@
+ #ifndef _MT7620_REGS_H_
+ #define _MT7620_REGS_H_
+
+-enum mt762x_soc_type {
+- MT762X_SOC_UNKNOWN = 0,
+- MT762X_SOC_MT7620A,
+- MT762X_SOC_MT7620N,
+- MT762X_SOC_MT7628AN,
+-};
+-extern enum mt762x_soc_type mt762x_soc;
+-
+ #define MT7620_SYSC_BASE 0x10000000
+
+ #define SYSC_REG_CHIP_NAME0 0x00
+Index: linux-3.14.18/arch/mips/include/asm/mach-ralink/ralink_regs.h
+===================================================================
+--- linux-3.14.18.orig/arch/mips/include/asm/mach-ralink/ralink_regs.h 2014-11-13 15:45:37.019332371 +0100
++++ linux-3.14.18/arch/mips/include/asm/mach-ralink/ralink_regs.h 2014-11-13 16:22:25.320391798 +0100
+@@ -13,6 +13,20 @@
+ #ifndef _RALINK_REGS_H_
+ #define _RALINK_REGS_H_
+
++enum ralink_soc_type {
++ RALINK_UNKNOWN = 0,
++ RT305X_SOC_RT3050,
++ RT305X_SOC_RT3052,
++ RT305X_SOC_RT3350,
++ RT305X_SOC_RT3352,
++ RT305X_SOC_RT5350,
++ MT762X_SOC_MT7620A,
++ MT762X_SOC_MT7620N,
++ MT762X_SOC_MT7621AT,
++ MT762X_SOC_MT7628AN,
++};
++extern enum ralink_soc_type ralink_soc;
++
+ extern __iomem void *rt_sysc_membase;
+ extern __iomem void *rt_memc_membase;
+
+Index: linux-3.14.18/arch/mips/include/asm/mach-ralink/rt305x.h
+===================================================================
+--- linux-3.14.18.orig/arch/mips/include/asm/mach-ralink/rt305x.h 2014-11-13 15:45:37.311343619 +0100
++++ linux-3.14.18/arch/mips/include/asm/mach-ralink/rt305x.h 2014-11-13 15:45:37.679357795 +0100
+@@ -13,25 +13,16 @@
+ #ifndef _RT305X_REGS_H_
+ #define _RT305X_REGS_H_
+
+-enum rt305x_soc_type {
+- RT305X_SOC_UNKNOWN = 0,
+- RT305X_SOC_RT3050,
+- RT305X_SOC_RT3052,
+- RT305X_SOC_RT3350,
+- RT305X_SOC_RT3352,
+- RT305X_SOC_RT5350,
+-};
+-
+-extern enum rt305x_soc_type rt305x_soc;
++extern enum ralink_soc_type ralink_soc;
+
+ static inline int soc_is_rt3050(void)
+ {
+- return rt305x_soc == RT305X_SOC_RT3050;
++ return ralink_soc == RT305X_SOC_RT3050;
+ }
+
+ static inline int soc_is_rt3052(void)
+ {
+- return rt305x_soc == RT305X_SOC_RT3052;
++ return ralink_soc == RT305X_SOC_RT3052;
+ }
+
+ static inline int soc_is_rt305x(void)
+@@ -41,17 +32,17 @@
+
+ static inline int soc_is_rt3350(void)
+ {
+- return rt305x_soc == RT305X_SOC_RT3350;
++ return ralink_soc == RT305X_SOC_RT3350;
+ }
+
+ static inline int soc_is_rt3352(void)
+ {
+- return rt305x_soc == RT305X_SOC_RT3352;
++ return ralink_soc == RT305X_SOC_RT3352;
+ }
+
+ static inline int soc_is_rt5350(void)
+ {
+- return rt305x_soc == RT305X_SOC_RT5350;
++ return ralink_soc == RT305X_SOC_RT5350;
+ }
+
+ #define RT305X_SYSC_BASE 0x10000000
+Index: linux-3.14.18/arch/mips/ralink/mt7620.c
+===================================================================
+--- linux-3.14.18.orig/arch/mips/ralink/mt7620.c 2014-11-13 15:45:37.311343619 +0100
++++ linux-3.14.18/arch/mips/ralink/mt7620.c 2014-11-13 15:45:37.679357795 +0100
+@@ -43,8 +43,6 @@
+ #define CLKCFG_FFRAC_MASK 0x001f
+ #define CLKCFG_FFRAC_USB_VAL 0x0003
+
+-enum mt762x_soc_type mt762x_soc;
+-
+ /* does the board have sdram or ddram */
+ static int dram_type;
+
+@@ -375,7 +373,7 @@
+ #define RINT(x) ((x) / 1000000)
+ #define RFRAC(x) (((x) / 1000) % 1000)
+
+- if (mt762x_soc == MT762X_SOC_MT7628AN) {
++ if (ralink_soc == MT762X_SOC_MT7628AN) {
+ if (xtal_rate == MHZ(40))
+ cpu_rate = MHZ(580);
+ else
+@@ -418,7 +416,7 @@
+ ralink_clk_add("10000c00.uartlite", periph_rate);
+ ralink_clk_add("10180000.wmac", xtal_rate);
+
+- if (IS_ENABLED(CONFIG_USB) && mt762x_soc != MT762X_SOC_MT7628AN) {
++ if (IS_ENABLED(CONFIG_USB) && ralink_soc != MT762X_SOC_MT7628AN) {
+ /*
+ * When the CPU goes into sleep mode, the BUS clock will be too low for
+ * USB to function properly
+@@ -506,11 +504,11 @@
+
+ if (n0 == MT7620_CHIP_NAME0 && n1 == MT7620_CHIP_NAME1) {
+ if (bga) {
+- mt762x_soc = MT762X_SOC_MT7620A;
++ ralink_soc = MT762X_SOC_MT7620A;
+ name = "MT7620A";
+ soc_info->compatible = "ralink,mt7620a-soc";
+ } else {
+- mt762x_soc = MT762X_SOC_MT7620N;
++ ralink_soc = MT762X_SOC_MT7620N;
+ name = "MT7620N";
+ soc_info->compatible = "ralink,mt7620n-soc";
+ #ifdef CONFIG_PCI
+@@ -518,7 +516,7 @@
+ #endif
+ }
+ } else if (n0 == MT7620_CHIP_NAME0 && n1 == MT7628_CHIP_NAME1) {
+- mt762x_soc = MT762X_SOC_MT7628AN;
++ ralink_soc = MT762X_SOC_MT7628AN;
+ name = "MT7628AN";
+ soc_info->compatible = "ralink,mt7628an-soc";
+ } else {
+@@ -535,7 +533,7 @@
+ dram_type = (cfg0 >> SYSCFG0_DRAM_TYPE_SHIFT) & SYSCFG0_DRAM_TYPE_MASK;
+
+ soc_info->mem_base = MT7620_DRAM_BASE;
+- if (mt762x_soc == MT762X_SOC_MT7628AN)
++ if (ralink_soc == MT762X_SOC_MT7628AN)
+ mt7628_dram_init(soc_info);
+ else
+ mt7620_dram_init(soc_info);
+@@ -548,7 +546,7 @@
+ pr_info("Digital PMU set to %s control\n",
+ (pmu1 & DIG_SW_SEL) ? ("sw") : ("hw"));
+
+- if (mt762x_soc == MT762X_SOC_MT7628AN)
++ if (ralink_soc == MT762X_SOC_MT7628AN)
+ rt2880_pinmux_data = mt7628an_pinmux_data;
+ else
+ rt2880_pinmux_data = mt7620a_pinmux_data;
+Index: linux-3.14.18/arch/mips/ralink/rt305x.c
+===================================================================
+--- linux-3.14.18.orig/arch/mips/ralink/rt305x.c 2014-11-13 15:45:37.363345622 +0100
++++ linux-3.14.18/arch/mips/ralink/rt305x.c 2014-11-13 15:45:37.679357795 +0100
+@@ -21,8 +21,6 @@
+
+ #include "common.h"
+
+-enum rt305x_soc_type rt305x_soc;
+-
+ static struct rt2880_pmx_func i2c_func[] = { FUNC("i2c", 0, 1, 2) };
+ static struct rt2880_pmx_func spi_func[] = { FUNC("spi", 0, 3, 4) };
+ static struct rt2880_pmx_func uartf_func[] = {
+@@ -234,24 +232,24 @@
+
+ icache_sets = (read_c0_config1() >> 22) & 7;
+ if (icache_sets == 1) {
+- rt305x_soc = RT305X_SOC_RT3050;
++ ralink_soc = RT305X_SOC_RT3050;
+ name = "RT3050";
+ soc_info->compatible = "ralink,rt3050-soc";
+ } else {
+- rt305x_soc = RT305X_SOC_RT3052;
++ ralink_soc = RT305X_SOC_RT3052;
+ name = "RT3052";
+ soc_info->compatible = "ralink,rt3052-soc";
+ }
+ } else if (n0 == RT3350_CHIP_NAME0 && n1 == RT3350_CHIP_NAME1) {
+- rt305x_soc = RT305X_SOC_RT3350;
++ ralink_soc = RT305X_SOC_RT3350;
+ name = "RT3350";
+ soc_info->compatible = "ralink,rt3350-soc";
+ } else if (n0 == RT3352_CHIP_NAME0 && n1 == RT3352_CHIP_NAME1) {
+- rt305x_soc = RT305X_SOC_RT3352;
++ ralink_soc = RT305X_SOC_RT3352;
+ name = "RT3352";
+ soc_info->compatible = "ralink,rt3352-soc";
+ } else if (n0 == RT5350_CHIP_NAME0 && n1 == RT5350_CHIP_NAME1) {
+- rt305x_soc = RT305X_SOC_RT5350;
++ ralink_soc = RT305X_SOC_RT5350;
+ name = "RT5350";
+ soc_info->compatible = "ralink,rt5350-soc";
+ } else {
+Index: linux-3.14.18/arch/mips/ralink/prom.c
+===================================================================
+--- linux-3.14.18.orig/arch/mips/ralink/prom.c 2014-11-13 16:09:38.442855784 +0100
++++ linux-3.14.18/arch/mips/ralink/prom.c 2014-11-13 16:10:20.220466636 +0100
+@@ -15,9 +15,12 @@
+ #include <asm/bootinfo.h>
+ #include <asm/addrspace.h>
+
++#include <asm/mach-ralink/ralink_regs.h>
++
+ #include "common.h"
+
+ struct ralink_soc_info soc_info;
++enum ralink_soc_type ralink_soc;
+
+ const char *get_system_type(void)
+ {