MIPS: ralink: Unify SoC id handling

This makes detection a lot easier for audio, wifi, ... drivers.

Signed-off-by: John Crispin <blogic@openwrt.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/11440/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

5 files changed, 19 insertions, 16 deletions

diff --git a/arch/mips/ralink/mt7620.c b/arch/mips/ralink/mt7620.c
index 4d1a0339dd54..f3a4a08f2e71 100644
--- a/arch/mips/ralink/mt7620.c
+++ b/arch/mips/ralink/mt7620.c
@@ -37,9 +37,6 @@
 #define PMU1_CFG		0x8C
 #define DIG_SW_SEL		BIT(25)
 
-/* is this a MT7620 or a MT7628 */
-enum mt762x_soc_type mt762x_soc;
-
 /* EFUSE bits */
 #define EFUSE_MT7688		0x100000
 
@@ -235,8 +232,8 @@ static struct rt2880_pmx_group mt7628an_pinmux_data[] = {
 
 static inline int is_mt76x8(void)
 {
-	return mt762x_soc == MT762X_SOC_MT7628AN ||
-	       mt762x_soc == MT762X_SOC_MT7688;
+	return ralink_soc == MT762X_SOC_MT7628AN ||
+	       ralink_soc == MT762X_SOC_MT7688;
 }
 
 static __init u32
@@ -511,11 +508,11 @@ void prom_soc_init(struct ralink_soc_info *soc_info)
 
 	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
@@ -526,10 +523,10 @@ void prom_soc_init(struct ralink_soc_info *soc_info)
 		u32 efuse = __raw_readl(sysc + SYSC_REG_EFUSE_CFG);
 
 		if (efuse & EFUSE_MT7688) {
-			mt762x_soc = MT762X_SOC_MT7688;
+			ralink_soc = MT762X_SOC_MT7688;
 			name = "MT7688";
 		} else {
-			mt762x_soc = MT762X_SOC_MT7628AN;
+			ralink_soc = MT762X_SOC_MT7628AN;
 			name = "MT7628AN";
 		}
 		soc_info->compatible = "ralink,mt7628an-soc";
diff --git a/arch/mips/ralink/prom.c b/arch/mips/ralink/prom.c
index 09419f67da39..39a9142f71be 100644
--- a/arch/mips/ralink/prom.c
+++ b/arch/mips/ralink/prom.c
@@ -15,11 +15,16 @@
 #include <asm/bootinfo.h>
 #include <asm/addrspace.h>
 
+#include <asm/mach-ralink/ralink_regs.h>
+
 #include "common.h"
 
 struct ralink_soc_info soc_info;
 struct rt2880_pmx_group *rt2880_pinmux_data = NULL;
 
+enum ralink_soc_type ralink_soc;
+EXPORT_SYMBOL_GPL(ralink_soc);
+
 const char *get_system_type(void)
 {
 	return soc_info.sys_type;
diff --git a/arch/mips/ralink/rt288x.c b/arch/mips/ralink/rt288x.c
index 738cec865f41..844f5cd55c8f 100644
--- a/arch/mips/ralink/rt288x.c
+++ b/arch/mips/ralink/rt288x.c
@@ -119,4 +119,5 @@ void prom_soc_init(struct ralink_soc_info *soc_info)
 	soc_info->mem_size_max = RT2880_MEM_SIZE_MAX;
 
 	rt2880_pinmux_data = rt2880_pinmux_data_act;
+	ralink_soc == RT2880_SOC;
 }
diff --git a/arch/mips/ralink/rt305x.c b/arch/mips/ralink/rt305x.c
index c40776ab67db..7e11f001e8ff 100644
--- a/arch/mips/ralink/rt305x.c
+++ b/arch/mips/ralink/rt305x.c
@@ -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[] = {
@@ -235,24 +233,24 @@ void prom_soc_init(struct ralink_soc_info *soc_info)
 
 		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 {
diff --git a/arch/mips/ralink/rt3883.c b/arch/mips/ralink/rt3883.c
index 86a535c770d8..582995aaaf4e 100644
--- a/arch/mips/ralink/rt3883.c
+++ b/arch/mips/ralink/rt3883.c
@@ -153,4 +153,6 @@ void prom_soc_init(struct ralink_soc_info *soc_info)
 	soc_info->mem_size_max = RT3883_MEM_SIZE_MAX;
 
 	rt2880_pinmux_data = rt3883_pinmux_data;
+
+	ralink_soc == RT3883_SOC;
 }