5 files changed, 23 insertions, 5 deletions
diff --git a/arch/arm/cpu/armv7/omap-common/clocks-common.c b/arch/arm/cpu/armv7/omap-common/clocks-common.c
index 90d3156..c02d73c 100644
--- a/arch/arm/cpu/armv7/omap-common/clocks-common.c
+++ b/arch/arm/cpu/armv7/omap-common/clocks-common.c
@@ -360,9 +360,22 @@ static void setup_non_essential_dplls(void)
 }
 #endif
 
-void do_scale_tps62361(u32 reg, u32 volt_mv)
+void do_scale_tps62361(int gpio, u32 reg, u32 volt_mv)
 {
 	u32 step;
+	int ret = 0;
+
+	/* See if we can first get the GPIO if needed */
+	if (gpio >= 0)
+		ret = gpio_request(gpio, "TPS62361_VSEL0_GPIO");
+	if (ret < 0) {
+		printf("%s: gpio %d request failed %d\n", __func__, gpio, ret);
+		gpio = -1;
+	}
+
+	/* Pull the GPIO low to select SET0 register, while we program SET1 */
+	if (gpio >= 0)
+		gpio_direction_output(gpio, 0);
 
 	step = volt_mv - TPS62361_BASE_VOLT_MV;
 	step /= 10;
@@ -370,6 +383,10 @@ void do_scale_tps62361(u32 reg, u32 volt_mv)
 	debug("do_scale_tps62361: volt - %d step - 0x%x\n", volt_mv, step);
 	if (omap_vc_bypass_send_value(TPS62361_I2C_SLAVE_ADDR, reg, step))
 		puts("Scaling voltage failed for vdd_mpu from TPS\n");
+
+	/* Pull the GPIO high to select SET1 register */
+	if (gpio >= 0)
+		gpio_direction_output(gpio, 1);
 }
 
 void do_scale_vcore(u32 vcore_reg, u32 volt_mv)
diff --git a/arch/arm/cpu/armv7/omap4/clocks.c b/arch/arm/cpu/armv7/omap4/clocks.c
index 976cfd5..1431312 100644
--- a/arch/arm/cpu/armv7/omap4/clocks.c
+++ b/arch/arm/cpu/armv7/omap4/clocks.c
@@ -281,7 +281,8 @@ void scale_vcores(void)
 	/* TPS - supplies vdd_mpu on 4460 */
 	if (omap_rev >= OMAP4460_ES1_0) {
 		volt = 1203;
-		do_scale_tps62361(TPS62361_REG_ADDR_SET1, volt);
+		do_scale_tps62361(TPS62361_VSEL0_GPIO,
+				  TPS62361_REG_ADDR_SET1, volt);
 	}
 
 	/*
diff --git a/arch/arm/cpu/armv7/omap5/clocks.c b/arch/arm/cpu/armv7/omap5/clocks.c
index 0a614f0..07a7556 100644
--- a/arch/arm/cpu/armv7/omap5/clocks.c
+++ b/arch/arm/cpu/armv7/omap5/clocks.c
@@ -247,7 +247,7 @@ void scale_vcores(void)
 
 	/* Enable 1.22V from TPS for vdd_mpu */
 	volt = 1220;
-	do_scale_tps62361(TPS62361_REG_ADDR_SET1, volt);
+	do_scale_tps62361(-1, TPS62361_REG_ADDR_SET1, volt);
 
 	/* VCORE 1 - for vdd_core */
 	volt = 1000;
diff --git a/arch/arm/include/asm/arch-omap4/clocks.h b/arch/arm/include/asm/arch-omap4/clocks.h
index 4e93950..62a339f 100644
--- a/arch/arm/include/asm/arch-omap4/clocks.h
+++ b/arch/arm/include/asm/arch-omap4/clocks.h
@@ -740,7 +740,7 @@ extern struct omap4_prcm_regs *const prcm;
 extern const u32 sys_clk_array[8];
 
 void scale_vcores(void);
-void do_scale_tps62361(u32 reg, u32 volt_mv);
+void do_scale_tps62361(int gpio, u32 reg, u32 volt_mv);
 u32 omap_ddr_clk(void);
 void do_scale_vcore(u32 vcore_reg, u32 volt_mv);
 void setup_post_dividers(u32 *const base, const struct dpll_params *params);
diff --git a/arch/arm/include/asm/arch-omap5/clocks.h b/arch/arm/include/asm/arch-omap5/clocks.h
index 28b9ff7..55145bb 100644
--- a/arch/arm/include/asm/arch-omap5/clocks.h
+++ b/arch/arm/include/asm/arch-omap5/clocks.h
@@ -686,7 +686,7 @@ extern struct omap5_prcm_regs *const prcm;
 extern const u32 sys_clk_array[8];
 
 void scale_vcores(void);
-void do_scale_tps62361(u32 reg, u32 volt_mv);
+void do_scale_tps62361(int gpio, u32 reg, u32 volt_mv);
 u32 omap_ddr_clk(void);
 void do_scale_vcore(u32 vcore_reg, u32 volt_mv);
 void setup_post_dividers(u32 *const base, const struct dpll_params *params);