Merge tag 'samsung-dt-exynos3250-artik5-4.7' into next/dt

Topic branch for Device Tree changes for Exynos 3250 for v4.7:

Merge necessary new clocks from Sylwester (used by new board) and add support
for Exynos3250-based Artik5 board.

Documentation/devicetree/bindings/arm/samsung/samsung-boards.txt

@@ -2,6 +2,8 @@
 
 Required root node properties:
     - compatible = should be one or more of the following.
+	- "samsung,artik5"	- for Exynos3250-based Samsung ARTIK5 module.
+	- "samsung,artik5-eval" - for Exynos3250-based Samsung ARTIK5 eval board.
 	- "samsung,monk"	- for Exynos3250-based Samsung Simband board.
 	- "samsung,rinato"	- for Exynos3250-based Samsung Gear2 board.
 	- "samsung,smdkv310"	- for Exynos4210-based Samsung SMDKV310 eval board.

arch/arm/boot/dts/Makefile

@@ -112,6 +112,7 @@ dtb-$(CONFIG_ARCH_DIGICOLOR) += \
 dtb-$(CONFIG_ARCH_EFM32) += \
 	efm32gg-dk3750.dtb
 dtb-$(CONFIG_ARCH_EXYNOS3) += \
+	exynos3250-artik5-eval.dtb \
 	exynos3250-monk.dtb \
 	exynos3250-rinato.dtb
 dtb-$(CONFIG_ARCH_EXYNOS4) += \

arch/arm/boot/dts/exynos3250-artik5-eval.dts

+/*
+ * Samsung's Exynos3250 based ARTIK5 evaluation board device tree source
+ *
+ * Copyright (c) 2016 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com
+ *
+ * Device tree source file for Samsung's ARTIK5 evaluation board
+ * which is based on Samsung Exynos3250 SoC.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+/dts-v1/;
+#include "exynos3250-artik5.dtsi"
+
+/ {
+	model = "Samsung ARTIK5 evaluation board";
+	compatible = "samsung,artik5-eval", "samsung,artik5",
+			"samsung,exynos3250", "samsung,exynos3";
+};
+
+&mshc_2 {
+	num-slots = <1>;
+	cap-sd-highspeed;
+	disable-wp;
+	vqmmc-supply = <&ldo3_reg>;
+	card-detect-delay = <200>;
+	clock-frequency = <100000000>;
+	clock-freq-min-max = <400000 100000000>;
+	samsung,dw-mshc-ciu-div = <1>;
+	samsung,dw-mshc-sdr-timing = <0 1>;
+	samsung,dw-mshc-ddr-timing = <1 2>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&sd2_cmd &sd2_clk &sd2_cd &sd2_bus1 &sd2_bus4>;
+	bus-width = <4>;
+	status = "okay";
+};
+
+&serial_2 {
+	status = "okay";
+};

arch/arm/boot/dts/exynos3250-artik5.dtsi

+/*
+ * Samsung's Exynos3250 based ARTIK5 module device tree source
+ *
+ * Copyright (c) 2016 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com
+ *
+ * Device tree source file for Samsung's ARTIK5 module which is based on
+ * Samsung Exynos3250 SoC.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include "exynos3250.dtsi"
+#include <dt-bindings/clock/samsung,s2mps11.h>
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+
+/ {
+	compatible = "samsung,artik5", "samsung,exynos3250", "samsung,exynos3";
+
+	chosen {
+		stdout-path = &serial_2;
+	};
+
+	memory {
+		reg = <0x40000000 0x1ff00000>;
+	};
+
+	firmware@0205f000 {
+		compatible = "samsung,secure-firmware";
+		reg = <0x0205f000 0x1000>;
+	};
+
+	thermal-zones {
+		cpu_thermal: cpu-thermal {
+			cooling-maps {
+				map0 {
+					/* Corresponds to 500MHz */
+					cooling-device = <&cpu0 5 5>;
+				};
+				map1 {
+					/* Corresponds to 200MHz */
+					cooling-device = <&cpu0 8 8>;
+				};
+			};
+		};
+	};
+};
+
+&adc {
+	vdd-supply = <&ldo7_reg>;
+	assigned-clocks = <&cmu CLK_SCLK_TSADC>;
+	assigned-clock-rates = <6000000>;
+};
+
+&cpu0 {
+	cpu0-supply = <&buck2_reg>;
+};
+
+&i2c_0 {
+	#address-cells = <1>;
+	#size-cells = <0>;
+	samsung,i2c-sda-delay = <100>;
+	samsung,i2c-slave-addr = <0x10>;
+	samsung,i2c-max-bus-freq = <100000>;
+	status = "okay";
+
+	s2mps14_pmic@66 {
+		compatible = "samsung,s2mps14-pmic";
+		interrupt-parent = <&gpx3>;
+		interrupts = <5 IRQ_TYPE_NONE>;
+		reg = <0x66>;
+
+		s2mps14_osc: clocks {
+			compatible = "samsung,s2mps14-clk";
+			#clock-cells = <1>;
+			clock-output-names = "s2mps14_ap", "unused",
+				"s2mps14_bt";
+		};
+
+		regulators {
+			ldo1_reg: LDO1 {
+				/* VDD_ALIVE15x */
+				regulator-name = "VLDO1_1.0V";
+				regulator-min-microvolt = <1000000>;
+				regulator-max-microvolt = <1000000>;
+				regulator-always-on;
+			};
+
+			ldo2_reg: LDO2 {
+				/* VDDQM176 ~ VDDQM185 */
+				regulator-name = "VLDO2_1.2V";
+				regulator-min-microvolt = <1200000>;
+				regulator-max-microvolt = <1200000>;
+				regulator-always-on;
+			};
+
+			ldo3_reg: LDO3 {
+				/*
+				 * VDD1_E106 ~ VDD1_E111
+				 * DVDD_RTC_AP, DVDD_MMC2_AP
+				 */
+				regulator-name = "VLDO3_1.8V";
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+				regulator-always-on;
+			};
+
+			ldo4_reg: LDO4 {
+				/*  AVDD_PLL1120 ~ AVDD_PLL11201 */
+				regulator-name = "VLDO4_1.8V";
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+				regulator-always-on;
+			};
+
+			ldo5_reg: LDO5 {
+				/* VDDI_PLL_ISO141 ~ VDDI_PLL_ISO142 */
+				regulator-name = "VLDO5_1.0V";
+				regulator-min-microvolt = <1000000>;
+				regulator-max-microvolt = <1000000>;
+				regulator-always-on;
+			};
+
+			ldo6_reg: LDO6 {
+				/* VDD_USB, VDD10_HSIC */
+				regulator-name = "VLDO6_1.0V";
+				regulator-min-microvolt = <1000000>;
+				regulator-max-microvolt = <1000000>;
+				regulator-always-on;
+			};
+
+			ldo7_reg: LDO7 {
+				/*
+				 * VDD18P, AVDD18_TS, AVDD18_HSIC, AVDD_PLL2,
+				 * AVDD_ADC, AVDD_ABB_0, M4S_VDD18
+				 */
+				regulator-name = "VLDO7_1.8V";
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+				regulator-always-on;
+			};
+
+			ldo8_reg: LDO8 {
+				/* AVDD33_UOTG */
+				regulator-name = "VLDO8_3.0V";
+				regulator-min-microvolt = <3000000>;
+				regulator-max-microvolt = <3000000>;
+				regulator-always-on;
+			};
+
+			ldo9_reg: LDO9 {
+				/* VDDQ_E86 ~ VDDQ_E105*/
+				regulator-name = "VLDO9_1.2V";
+				regulator-min-microvolt = <1200000>;
+				regulator-max-microvolt = <1200000>;
+				regulator-always-on;
+			};
+
+			ldo10_reg: LDO10 {
+				regulator-name = "VLDO10_1.0V";
+				regulator-min-microvolt = <1000000>;
+				regulator-max-microvolt = <1000000>;
+			};
+
+			ldo11_reg: LDO11 {
+				/* VDD74 ~ VDD75 */
+				regulator-name = "VLDO11_1.8V";
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+				samsung,ext-control-gpios = <&gpk0 2 GPIO_ACTIVE_HIGH>;
+			};
+
+			ldo12_reg: LDO12 {
+				/* VDD72 ~ VDD73 */
+				regulator-name = "VLDO12_2.8V";
+				regulator-min-microvolt = <2800000>;
+				regulator-max-microvolt = <2800000>;
+				samsung,ext-control-gpios = <&gpk0 2 GPIO_ACTIVE_HIGH>;
+			};
+
+			ldo13_reg: LDO13 {
+				regulator-name = "VLDO13_2.8V";
+				regulator-min-microvolt = <2800000>;
+				regulator-max-microvolt = <2800000>;
+			};
+
+			ldo14_reg: LDO14 {
+				regulator-name = "VLDO14_2.7V";
+				regulator-min-microvolt = <2700000>;
+				regulator-max-microvolt = <2700000>;
+			};
+
+			ldo15_reg: LDO15 {
+				regulator-name = "VLDO_3.3V";
+				regulator-min-microvolt = <3300000>;
+				regulator-max-microvolt = <3300000>;
+			};
+
+			ldo16_reg: LDO16 {
+				regulator-name = "VLDO16_3.3V";
+				regulator-min-microvolt = <3300000>;
+				regulator-max-microvolt = <3300000>;
+			};
+
+			ldo17_reg: LDO17 {
+				regulator-name = "VLDO17_3.0V";
+				regulator-min-microvolt = <3000000>;
+				regulator-max-microvolt = <3000000>;
+			};
+
+			ldo18_reg: LDO18 {
+				/* DVDD_MMC2_AP */
+				regulator-name = "VLDO18_2.8V";
+				regulator-min-microvolt = <2800000>;
+				regulator-max-microvolt = <2800000>;
+			};
+
+			ldo19_reg: LDO19 {
+				regulator-name = "VLDO19_1.8V";
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+			};
+
+			ldo20_reg: LDO20 {
+				regulator-name = "VLDO20_1.8V";
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+			};
+
+			ldo21_reg: LDO21 {
+				regulator-name = "VLDO21_1.25V";
+				regulator-min-microvolt = <1250000>;
+				regulator-max-microvolt = <1250000>;
+			};
+
+			ldo22_reg: LDO22 {
+				regulator-name = "VLDO22_1.2V";
+				regulator-min-microvolt = <1200000>;
+				regulator-max-microvolt = <1200000>;
+			};
+
+			ldo23_reg: LDO23 {
+				/* Xi2c3_SDA/SCL, Xi2c7_SDA/SCL, WLAN_SDIO */
+				regulator-name = "VLDO23_1.8V";
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+			};
+
+			ldo24_reg: LDO24 {
+				regulator-name = "VLDO24_3.0V";
+				regulator-min-microvolt = <3000000>;
+				regulator-max-microvolt = <3000000>;
+			};
+
+			ldo25_reg: LDO25 {
+				regulator-name = "VLDO25_3.0V";
+				regulator-min-microvolt = <3000000>;
+				regulator-max-microvolt = <3000000>;
+			};
+
+			buck1_reg: BUCK1 {
+				/* VDD_MIF */
+				regulator-name = "VBUCK1_1.0V";
+				regulator-min-microvolt = <800000>;
+				regulator-max-microvolt = <1000000>;
+				regulator-always-on;
+			};
+
+			buck2_reg: BUCK2 {
+				/* VDD_CPU */
+				regulator-name = "VBUCK2_1.2V";
+				regulator-min-microvolt = <850000>;
+				regulator-max-microvolt = <1200000>;
+				regulator-always-on;
+			};
+
+			buck3_reg: BUCK3 {
+				/* VDD_G3D */
+				regulator-name = "VBUCK3_1.0V";
+				regulator-min-microvolt = <850000>;
+				regulator-max-microvolt = <1000000>;
+				regulator-always-on;
+			};
+
+			buck4_reg: BUCK4 {
+				regulator-name = "VBUCK4_1.95V";
+				regulator-min-microvolt = <1950000>;
+				regulator-max-microvolt = <1950000>;
+				regulator-always-on;
+			};
+
+			buck5_reg: BUCK5 {
+				regulator-name = "VBUCK5_1.35V";
+				regulator-min-microvolt = <1350000>;
+				regulator-max-microvolt = <1350000>;
+				regulator-always-on;
+			};
+		};
+	};
+};
+
+&mshc_0 {
+	num-slots = <1>;
+	non-removable;
+	cap-mmc-highspeed;
+	card-detect-delay = <200>;
+	vmmc-supply = <&ldo12_reg>;
+	clock-frequency = <100000000>;
+	clock-freq-min-max = <400000 100000000>;
+	samsung,dw-mshc-ciu-div = <1>;
+	samsung,dw-mshc-sdr-timing = <0 1>;
+	samsung,dw-mshc-ddr-timing = <1 2>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&sd0_cmd &sd0_bus1 &sd0_bus4 &sd0_bus8>;
+	bus-width = <8>;
+	status = "okay";
+};
+
+&rtc {
+	clocks = <&cmu CLK_RTC>, <&s2mps14_osc S2MPS11_CLK_AP>;
+	clock-names = "rtc", "rtc_src";
+	status = "okay";
+};
+
+&tmu {
+	status = "okay";
+};
+
+&xusbxti {
+	clock-frequency = <24000000>;
+};

arch/arm/boot/dts/exynos3250-monk.dts

@@ -558,7 +558,17 @@ sleep0: sleep-state {
 
 &pinctrl_1 {
 	pinctrl-names = "default";
-	pinctrl-0 = <&sleep1>;
+	pinctrl-0 = <&initial1 &sleep1>;
+
+	initial1: initial-state {
+		PIN_IN(gpk2-0, DOWN, LV1);
+		PIN_IN(gpk2-1, DOWN, LV1);
+		PIN_IN(gpk2-2, DOWN, LV1);
+		PIN_IN(gpk2-3, DOWN, LV1);
+		PIN_IN(gpk2-4, DOWN, LV1);
+		PIN_IN(gpk2-5, DOWN, LV1);
+		PIN_IN(gpk2-6, DOWN, LV1);
+	};
 
 	sleep1: sleep-state {
 		PIN_SLP(gpe0-0, PREV, NONE);

arch/arm/boot/dts/exynos3250-pinctrl.dtsi

@@ -16,11 +16,49 @@
 #define PIN_PULL_DOWN		1
 #define PIN_PULL_UP		3
 
+#define PIN_DRV_LV1		0
+#define PIN_DRV_LV2		2
+#define PIN_DRV_LV3		1
+#define PIN_DRV_LV4		3
+
 #define PIN_PDN_OUT0		0
 #define PIN_PDN_OUT1		1
 #define PIN_PDN_INPUT		2
 #define PIN_PDN_PREV		3
 
+#define PIN_IN(_pin, _pull, _drv)			\
+	_pin {						\
+		samsung,pins = #_pin;			\
+		samsung,pin-function = <0>;		\
+		samsung,pin-pud = <PIN_PULL_ ##_pull>;	\
+		samsung,pin-drv = <PIN_DRV_ ##_drv>;	\
+	}
+
+#define PIN_OUT(_pin, _drv)				\
+	_pin {						\
+		samsung,pins = #_pin;			\
+		samsung,pin-function = <1>;		\
+		samsung,pin-pud = <0>;			\
+		samsung,pin-drv = <PIN_DRV_ ##_drv>;	\
+	}
+
+#define PIN_OUT_SET(_pin, _val, _drv)			\
+	_pin {						\
+		samsung,pins = #_pin;			\
+		samsung,pin-function = <1>;		\
+		samsung,pin-pud = <0>;			\
+		samsung,pin-drv = <PIN_DRV_ ##_drv>;	\
+		samsung,pin-val = <_val>;		\
+	}
+
+#define PIN_CFG(_pin, _sel, _pull, _drv)		\
+	_pin {						\
+		samsung,pins = #_pin;			\
+		samsung,pin-function = <_sel>;		\
+		samsung,pin-pud = <PIN_PULL_ ##_pull>;	\
+		samsung,pin-drv = <PIN_DRV_ ##_drv>;	\
+	}
+
 #define PIN_SLP(_pin, _mode, _pull)				\
 	_pin {							\
 		samsung,pins = #_pin;				\
@@ -120,6 +158,13 @@ i2c2_bus: i2c2-bus {
 		samsung,pin-drv = <0>;
 	};
 
+	uart2_data: uart2-data {
+		samsung,pins = "gpa1-0", "gpa1-1";
+		samsung,pin-function = <2>;
+		samsung,pin-pud = <0>;
+		samsung,pin-drv = <0>;
+	};
+
 	i2c3_bus: i2c3-bus {
 		samsung,pins = "gpa1-2", "gpa1-3";
 		samsung,pin-function = <3>;
@@ -445,6 +490,41 @@ sd1_bus4: sd1-bus-width4 {
 		samsung,pin-drv = <3>;
 	};
 
+	sd2_clk: sd2-clk {
+		samsung,pins = "gpk2-0";
+		samsung,pin-function = <2>;
+		samsung,pin-pud = <0>;
+		samsung,pin-drv = <3>;
+	};
+
+	sd2_cmd: sd2-cmd {
+		samsung,pins = "gpk2-1";
+		samsung,pin-function = <2>;
+		samsung,pin-pud = <0>;
+		samsung,pin-drv = <3>;
+	};
+
+	sd2_cd: sd2-cd {
+		samsung,pins = "gpk2-2";
+		samsung,pin-function = <2>;
+		samsung,pin-pud = <3>;
+		samsung,pin-drv = <3>;
+	};
+
+	sd2_bus1: sd2-bus-width1 {
+		samsung,pins = "gpk2-3";
+		samsung,pin-function = <2>;
+		samsung,pin-pud = <3>;
+		samsung,pin-drv = <3>;
+	};
+
+	sd2_bus4: sd2-bus-width4 {
+		samsung,pins = "gpk2-4", "gpk2-5", "gpk2-6";
+		samsung,pin-function = <2>;
+		samsung,pin-pud = <3>;
+		samsung,pin-drv = <3>;
+	};
+
 	cam_port_b_io: cam-port-b-io {
 		samsung,pins = "gpm0-0", "gpm0-1", "gpm0-2", "gpm0-3",
 				"gpm0-4", "gpm0-5", "gpm0-6", "gpm0-7",

arch/arm/boot/dts/exynos3250-rinato.dts

@@ -681,7 +681,21 @@ &xusbxti {
 
 &pinctrl_0 {
 	pinctrl-names = "default";
-	pinctrl-0 = <&sleep0>;
+	pinctrl-0 = <&initial0 &sleep0>;
+
+	initial0: initial-state {
+		PIN_IN(gpa1-4, DOWN, LV1);
+		PIN_IN(gpa1-5, DOWN, LV1);
+
+		PIN_IN(gpc0-0, DOWN, LV1);
+		PIN_IN(gpc0-1, DOWN, LV1);
+		PIN_IN(gpc0-2, DOWN, LV1);
+		PIN_IN(gpc0-3, DOWN, LV1);
+		PIN_IN(gpc0-4, DOWN, LV1);
+
+		PIN_IN(gpd0-0, DOWN, LV1);
+		PIN_IN(gpd0-1, DOWN, LV1);
+	};
 
 	sleep0: sleep-state {
 		PIN_SLP(gpa0-0, INPUT, DOWN);
@@ -735,7 +749,60 @@ sleep0: sleep-state {
 
 &pinctrl_1 {
 	pinctrl-names = "default";
-	pinctrl-0 = <&sleep1>;
+	pinctrl-0 = <&initial1 &sleep1>;
+
+	initial1: initial-state {
+		PIN_IN(gpe0-6, DOWN, LV1);
+		PIN_IN(gpe0-7, DOWN, LV1);
+
+		PIN_IN(gpe1-0, DOWN, LV1);
+		PIN_IN(gpe1-3, DOWN, LV1);
+		PIN_IN(gpe1-4, DOWN, LV1);
+		PIN_IN(gpe1-5, DOWN, LV1);
+		PIN_IN(gpe1-6, DOWN, LV1);
+
+		PIN_IN(gpk2-0, DOWN, LV1);
+		PIN_IN(gpk2-1, DOWN, LV1);
+		PIN_IN(gpk2-2, DOWN, LV1);
+		PIN_IN(gpk2-3, DOWN, LV1);
+		PIN_IN(gpk2-4, DOWN, LV1);
+		PIN_IN(gpk2-5, DOWN, LV1);
+		PIN_IN(gpk2-6, DOWN, LV1);
+
+		PIN_IN(gpm0-0, DOWN, LV1);
+		PIN_IN(gpm0-1, DOWN, LV1);
+		PIN_IN(gpm0-2, DOWN, LV1);
+		PIN_IN(gpm0-3, DOWN, LV1);
+		PIN_IN(gpm0-4, DOWN, LV1);
+		PIN_IN(gpm0-5, DOWN, LV1);
+		PIN_IN(gpm0-6, DOWN, LV1);
+		PIN_IN(gpm0-7, DOWN, LV1);
+
+		PIN_IN(gpm1-0, DOWN, LV1);
+		PIN_IN(gpm1-1, DOWN, LV1);
+		PIN_IN(gpm1-2, DOWN, LV1);
+		PIN_IN(gpm1-3, DOWN, LV1);
+		PIN_IN(gpm1-4, DOWN, LV1);
+		PIN_IN(gpm1-5, DOWN, LV1);
+		PIN_IN(gpm1-6, DOWN, LV1);
+
+		PIN_IN(gpm2-0, DOWN, LV1);
+		PIN_IN(gpm2-1, DOWN, LV1);
+
+		PIN_IN(gpm3-0, DOWN, LV1);
+		PIN_IN(gpm3-1, DOWN, LV1);
+		PIN_IN(gpm3-2, DOWN, LV1);
+		PIN_IN(gpm3-3, DOWN, LV1);
+		PIN_IN(gpm3-4, DOWN, LV1);
+
+		PIN_IN(gpm4-1, DOWN, LV1);
+		PIN_IN(gpm4-2, DOWN, LV1);
+		PIN_IN(gpm4-3, DOWN, LV1);
+		PIN_IN(gpm4-4, DOWN, LV1);
+		PIN_IN(gpm4-5, DOWN, LV1);
+		PIN_IN(gpm4-6, DOWN, LV1);
+		PIN_IN(gpm4-7, DOWN, LV1);
+	};
 
 	sleep1: sleep-state {
 		PIN_SLP(gpe0-0, PREV, NONE);

arch/arm/boot/dts/exynos3250.dtsi

@@ -31,6 +31,7 @@ aliases {
 		pinctrl1 = &pinctrl_1;
 		mshc0 = &mshc_0;
 		mshc1 = &mshc_1;
+		mshc2 = &mshc_2;
 		spi0 = &spi_0;
 		spi1 = &spi_1;
 		i2c0 = &i2c_0;
@@ -43,6 +44,7 @@ aliases {
 		i2c7 = &i2c_7;
 		serial0 = &serial_0;
 		serial1 = &serial_1;
+		serial2 = &serial_2;
 	};
 
 	cpus {
@@ -357,6 +359,18 @@ mshc_1: mshc@12520000 {
 			status = "disabled";
 		};
 
+		mshc_2: mshc@12530000 {
+			compatible = "samsung,exynos5250-dw-mshc";
+			reg = <0x12530000 0x1000>;
+			interrupts = <0 144 0>;
+			clocks = <&cmu CLK_SDMMC2>, <&cmu CLK_SCLK_MMC2>;
+			clock-names = "biu", "ciu";
+			fifo-depth = <0x80>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "disabled";
+		};
+
 		exynos_usbphy: exynos-usbphy@125B0000 {
 			compatible = "samsung,exynos3250-usb2-phy";
 			reg = <0x125B0000 0x100>;
@@ -452,6 +466,17 @@ serial_1: serial@13810000 {
 			status = "disabled";
 		};
 
+		serial_2: serial@13820000 {
+			compatible = "samsung,exynos4210-uart";
+			reg = <0x13820000 0x100>;
+			interrupts = <0 111 0>;
+			clocks = <&cmu CLK_UART2>, <&cmu CLK_SCLK_UART2>;
+			clock-names = "uart", "clk_uart_baud0";
+			pinctrl-names = "default";
+			pinctrl-0 = <&uart2_data>;
+			status = "disabled";
+		};
+
 		i2c_0: i2c@13860000 {
 			#address-cells = <1>;
 			#size-cells = <0>;

drivers/clk/samsung/clk-exynos3250.c

@@ -302,10 +302,12 @@ static struct samsung_mux_clock mux_clks[] __initdata = {
 
 	/* SRC_FSYS */
 	MUX(CLK_MOUT_TSADC, "mout_tsadc", group_sclk_p, SRC_FSYS, 28, 4),
+	MUX(CLK_MOUT_MMC2, "mout_mmc2", group_sclk_p, SRC_FSYS, 8, 4),
 	MUX(CLK_MOUT_MMC1, "mout_mmc1", group_sclk_p, SRC_FSYS, 4, 4),
 	MUX(CLK_MOUT_MMC0, "mout_mmc0", group_sclk_p, SRC_FSYS, 0, 4),
 
 	/* SRC_PERIL0 */
+	MUX(CLK_MOUT_UART2, "mout_uart2", group_sclk_p, SRC_PERIL0, 8, 4),
 	MUX(CLK_MOUT_UART1, "mout_uart1", group_sclk_p, SRC_PERIL0, 4, 4),
 	MUX(CLK_MOUT_UART0, "mout_uart0", group_sclk_p, SRC_PERIL0, 0, 4),
 
@@ -389,7 +391,13 @@ static struct samsung_div_clock div_clks[] __initdata = {
 		CLK_SET_RATE_PARENT, 0),
 	DIV(CLK_DIV_MMC0, "div_mmc0", "mout_mmc0", DIV_FSYS1, 0, 4),
 
+	/* DIV_FSYS2 */
+	DIV_F(CLK_DIV_MMC2_PRE, "div_mmc2_pre", "div_mmc2", DIV_FSYS2, 8, 8,
+		CLK_SET_RATE_PARENT, 0),
+	DIV(CLK_DIV_MMC2, "div_mmc2", "mout_mmc2", DIV_FSYS2, 0, 4),
+
 	/* DIV_PERIL0 */
+	DIV(CLK_DIV_UART2, "div_uart2", "mout_uart2", DIV_PERIL0, 8, 4),
 	DIV(CLK_DIV_UART1, "div_uart1", "mout_uart1", DIV_PERIL0, 4, 4),
 	DIV(CLK_DIV_UART0, "div_uart0", "mout_uart0", DIV_PERIL0, 0, 4),
 
@@ -538,6 +546,8 @@ static struct samsung_gate_clock gate_clks[] __initdata = {
 		GATE_SCLK_FSYS, 9, CLK_SET_RATE_PARENT, 0),
 	GATE(CLK_SCLK_EBI, "sclk_ebi", "div_ebi",
 		GATE_SCLK_FSYS, 6, CLK_SET_RATE_PARENT, 0),
+	GATE(CLK_SCLK_MMC2, "sclk_mmc2", "div_mmc2_pre",
+		GATE_SCLK_FSYS, 2, CLK_SET_RATE_PARENT, 0),
 	GATE(CLK_SCLK_MMC1, "sclk_mmc1", "div_mmc1_pre",
 		GATE_SCLK_FSYS, 1, CLK_SET_RATE_PARENT, 0),
 	GATE(CLK_SCLK_MMC0, "sclk_mmc0", "div_mmc0_pre",
@@ -552,6 +562,9 @@ static struct samsung_gate_clock gate_clks[] __initdata = {
 		GATE_SCLK_PERIL, 7, CLK_SET_RATE_PARENT, 0),
 	GATE(CLK_SCLK_SPI0, "sclk_spi0", "div_spi0_pre",
 		GATE_SCLK_PERIL, 6, CLK_SET_RATE_PARENT, 0),
+
+	GATE(CLK_SCLK_UART2, "sclk_uart2", "div_uart2",
+		GATE_SCLK_PERIL, 2, CLK_SET_RATE_PARENT, 0),
 	GATE(CLK_SCLK_UART1, "sclk_uart1", "div_uart1",
 		GATE_SCLK_PERIL, 1, CLK_SET_RATE_PARENT, 0),
 	GATE(CLK_SCLK_UART0, "sclk_uart0", "div_uart0",
@@ -630,6 +643,7 @@ static struct samsung_gate_clock gate_clks[] __initdata = {
 	GATE(CLK_USBOTG, "usbotg", "div_aclk_200", GATE_IP_FSYS, 13, 0, 0),
 	GATE(CLK_USBHOST, "usbhost", "div_aclk_200", GATE_IP_FSYS, 12, 0, 0),
 	GATE(CLK_SROMC, "sromc", "div_aclk_200", GATE_IP_FSYS, 11, 0, 0),
+	GATE(CLK_SDMMC2, "sdmmc2", "div_aclk_200", GATE_IP_FSYS, 7, 0, 0),
 	GATE(CLK_SDMMC1, "sdmmc1", "div_aclk_200", GATE_IP_FSYS, 6, 0, 0),
 	GATE(CLK_SDMMC0, "sdmmc0", "div_aclk_200", GATE_IP_FSYS, 5, 0, 0),
 	GATE(CLK_PDMA1, "pdma1", "div_aclk_200", GATE_IP_FSYS, 1, 0, 0),
@@ -649,6 +663,7 @@ static struct samsung_gate_clock gate_clks[] __initdata = {
 	GATE(CLK_I2C2, "i2c2", "div_aclk_100", GATE_IP_PERIL, 8, 0, 0),
 	GATE(CLK_I2C1, "i2c1", "div_aclk_100", GATE_IP_PERIL, 7, 0, 0),
 	GATE(CLK_I2C0, "i2c0", "div_aclk_100", GATE_IP_PERIL, 6, 0, 0),
+	GATE(CLK_UART2, "uart2", "div_aclk_100", GATE_IP_PERIL, 2, 0, 0),
 	GATE(CLK_UART1, "uart1", "div_aclk_100", GATE_IP_PERIL, 1, 0, 0),
 	GATE(CLK_UART0, "uart0", "div_aclk_100", GATE_IP_PERIL, 0, 0, 0),
 };

include/dt-bindings/clock/exynos3250.h

@@ -79,6 +79,8 @@
 #define CLK_MOUT_CORE			58
 #define CLK_MOUT_APLL			59
 #define CLK_MOUT_ACLK_266_SUB		60
+#define CLK_MOUT_UART2			61
+#define CLK_MOUT_MMC2			62
 
 /* Dividers */
 #define CLK_DIV_GPL			64
@@ -127,6 +129,9 @@
 #define CLK_DIV_CORE			107
 #define CLK_DIV_HPM			108
 #define CLK_DIV_COPY			109
+#define CLK_DIV_UART2			110
+#define CLK_DIV_MMC2_PRE		111
+#define CLK_DIV_MMC2			112
 
 /* Gates */
 #define CLK_ASYNC_G3D			128
@@ -223,6 +228,8 @@
 #define CLK_BLOCK_MFC			219
 #define CLK_BLOCK_CAM			220
 #define CLK_SMIES			221
+#define CLK_UART2			222
+#define CLK_SDMMC2			223
 
 /* Special clocks */
 #define CLK_SCLK_JPEG			224
@@ -249,12 +256,14 @@
 #define CLK_SCLK_SPI0			245
 #define CLK_SCLK_UART1			246
 #define CLK_SCLK_UART0			247
+#define CLK_SCLK_UART2			248
+#define CLK_SCLK_MMC2			249
 
 /*
  * Total number of clocks of main CMU.
  * NOTE: Must be equal to last clock ID increased by one.
  */
-#define CLK_NR_CLKS			248
+#define CLK_NR_CLKS			250
 
 /*
  * CMU DMC