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Date:   Thu, 23 Nov 2017 13:21:53 +0530
From:   Vignesh R <vigneshr@...com>
To:     Santosh Shilimkar <ssantosh@...nel.org>
CC:     Rob Herring <robh+dt@...nel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        Vignesh R <vigneshr@...com>
Subject: [PATCH 5/6] ARM: dts: keystone-k2g-ice: Add DT nodes for few peripherals

Add DT nodes for QSPI, on board LEDS, MMC, I2C, PCA IO expander,
gpio-decoder and regulators on K2G ICE board.

Thanks to Franklin S Cooper Jr <fcooper@...com> for initial work on few
peripherals.

Signed-off-by: Franklin S Cooper Jr <fcooper@...com>
Signed-off-by: Vignesh R <vigneshr@...com>
---
 arch/arm/boot/dts/keystone-k2g-ice.dts | 336 +++++++++++++++++++++++++++++++++
 1 file changed, 336 insertions(+)

diff --git a/arch/arm/boot/dts/keystone-k2g-ice.dts b/arch/arm/boot/dts/keystone-k2g-ice.dts
index 78692745e0af..1736eb53ad83 100644
--- a/arch/arm/boot/dts/keystone-k2g-ice.dts
+++ b/arch/arm/boot/dts/keystone-k2g-ice.dts
@@ -30,6 +30,191 @@
 			status = "okay";
 		};
 	};
+
+	vmain: fixedregulator-vmain {
+		compatible = "regulator-fixed";
+		regulator-name = "vmain_fixed";
+		regulator-min-microvolt = <24000000>;
+		regulator-max-microvolt = <24000000>;
+		regulator-always-on;
+	};
+
+	v5_0: fixedregulator-v5_0 {
+		/* TPS54531 */
+		compatible = "regulator-fixed";
+		regulator-name = "v5_0_fixed";
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		vin-supply = <&vmain>;
+		regulator-always-on;
+	};
+
+	vdd_3v3: fixedregulator-vdd_3v3 {
+		/* TLV62084 */
+		compatible = "regulator-fixed";
+		regulator-name = "vdd_3v3_fixed";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		vin-supply = <&v5_0>;
+		regulator-always-on;
+	};
+
+	vdd_1v8: fixedregulator-vdd_1v8 {
+		/* TLV62084 */
+		compatible = "regulator-fixed";
+		regulator-name = "vdd_1v8_fixed";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+		vin-supply = <&v5_0>;
+		regulator-always-on;
+	};
+
+	vdds_ddr: fixedregulator-vdds_ddr {
+		/* TLV62080 */
+		compatible = "regulator-fixed";
+		regulator-name = "vdds_ddr_fixed";
+		regulator-min-microvolt = <1350000>;
+		regulator-max-microvolt = <1350000>;
+		vin-supply = <&v5_0>;
+		regulator-always-on;
+	};
+
+	vref_ddr: fixedregulator-vref_ddr {
+		/* LP2996A */
+		compatible = "regulator-fixed";
+		regulator-name = "vref_ddr_fixed";
+		regulator-min-microvolt = <675000>;
+		regulator-max-microvolt = <675000>;
+		vin-supply = <&vdd_3v3>;
+		regulator-always-on;
+	};
+
+	vtt_ddr: fixedregulator-vtt_ddr {
+		/* LP2996A */
+		compatible = "regulator-fixed";
+		regulator-name = "vtt_ddr_fixed";
+		regulator-min-microvolt = <675000>;
+		regulator-max-microvolt = <675000>;
+		vin-supply = <&vdd_3v3>;
+		regulator-always-on;
+	};
+
+	vdd_0v9: fixedregulator-vdd_0v9 {
+		/* TPS62180 */
+		compatible = "regulator-fixed";
+		regulator-name = "vdd_0v9_fixed";
+		regulator-min-microvolt = <900000>;
+		regulator-max-microvolt = <900000>;
+		vin-supply = <&v5_0>;
+		regulator-always-on;
+	};
+
+	vddb: fixedregulator-vddb {
+		/* TPS22945 */
+		compatible = "regulator-fixed";
+		regulator-name = "vddb_fixed";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+
+		gpio = <&gpio1 53 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+	};
+
+	gpio-decoder {
+		compatible = "gpio-decoder";
+		gpios = <&pca9536 3 GPIO_ACTIVE_HIGH>,
+			<&pca9536 2 GPIO_ACTIVE_HIGH>,
+			<&pca9536 1 GPIO_ACTIVE_HIGH>,
+			<&pca9536 0 GPIO_ACTIVE_HIGH>;
+		linux,axis = <0>; /* ABS_X */
+		decoder-max-value = <9>;
+	};
+
+	leds1 {
+		compatible = "gpio-leds";
+		pinctrl-names = "default";
+		pinctrl-0 = <&user_leds>;
+
+		led0 {
+			label = "status0:red:cpu0";
+			gpios = <&gpio0 11 GPIO_ACTIVE_HIGH>;
+			default-state = "off";
+			linux,default-trigger = "cpu0";
+		};
+
+		led1 {
+			label = "status0:green:usr";
+			gpios = <&gpio0 12 GPIO_ACTIVE_HIGH>;
+			default-state = "off";
+		};
+
+		led2 {
+			label = "status0:yellow:usr";
+			gpios = <&gpio0 13 GPIO_ACTIVE_HIGH>;
+			default-state = "off";
+		};
+
+		led3 {
+			label = "status1:red:mmc0";
+			gpios = <&gpio0 14 GPIO_ACTIVE_HIGH>;
+			default-state = "off";
+			linux,default-trigger = "mmc0";
+		};
+
+		led4 {
+			label = "status1:green:usr";
+			gpios = <&gpio0 15 GPIO_ACTIVE_HIGH>;
+			default-state = "off";
+		};
+
+		led5 {
+			label = "status1:yellow:usr";
+			gpios = <&gpio0 16 GPIO_ACTIVE_HIGH>;
+			default-state = "off";
+		};
+
+		led6 {
+			label = "status2:red:usr";
+			gpios = <&gpio0 44 GPIO_ACTIVE_HIGH>;
+			default-state = "off";
+		};
+
+		led7 {
+			label = "status2:green:usr";
+			gpios = <&gpio0 43 GPIO_ACTIVE_HIGH>;
+			default-state = "off";
+		};
+
+		led8 {
+			label = "status2:yellow:usr";
+			gpios = <&gpio0 42 GPIO_ACTIVE_HIGH>;
+			default-state = "off";
+		};
+
+		led9 {
+			label = "status3:red:usr";
+			gpios = <&gpio0 41 GPIO_ACTIVE_HIGH>;
+			default-state = "off";
+		};
+
+		led10 {
+			label = "status3:green:usr";
+			gpios = <&gpio0 101 GPIO_ACTIVE_HIGH>;
+			default-state = "off";
+		};
+
+		led11 {
+			label = "status3:yellow:usr";
+			gpios = <&gpio0 102 GPIO_ACTIVE_HIGH>;
+			default-state = "off";
+		};
+
+		led12 {
+			label = "status4:green:heartbeat";
+			gpios = <&gpio0 19 GPIO_ACTIVE_HIGH>;
+			linux,default-trigger = "heartbeat";
+		};
+	};
 };
 
 &k2g_pinctrl {
@@ -39,6 +224,64 @@
 			K2G_CORE_IOPAD(0x11d0) (BUFFER_CLASS_B | PIN_PULLDOWN | MUX_MODE0)	/* uart0_txd.uart0_txd */
 		>;
 	};
+
+	qspi_pins: pinmux_qspi_pins {
+		pinctrl-single,pins = <
+			K2G_CORE_IOPAD(0x1204) (BUFFER_CLASS_B | PULL_DISABLE | MUX_MODE0) /* qspi_clk.qspi_clk */
+			K2G_CORE_IOPAD(0x1208) (BUFFER_CLASS_B | PULL_DISABLE | MUX_MODE0) /* qspi_rclk.qspi_rclk */
+			K2G_CORE_IOPAD(0x120c) (BUFFER_CLASS_B | PULL_DISABLE | MUX_MODE0) /* qspi_d0.qspi_d0 */
+			K2G_CORE_IOPAD(0x1210) (BUFFER_CLASS_B | PULL_DISABLE | MUX_MODE0) /* qspi_d1.qspi_d1 */
+			K2G_CORE_IOPAD(0x1214) (BUFFER_CLASS_B | PULL_DISABLE | MUX_MODE0) /* qspi_d2.qspi_d2 */
+			K2G_CORE_IOPAD(0x1218) (BUFFER_CLASS_B | PULL_DISABLE | MUX_MODE0) /* qspi_d3.qspi_d3 */
+			K2G_CORE_IOPAD(0x121c) (BUFFER_CLASS_B | PULL_DISABLE | MUX_MODE0) /* qspi_csn0.qspi_csn0 */
+		>;
+	};
+
+	mmc1_pins: pinmux_mmc1_pins {
+		pinctrl-single,pins = <
+			K2G_CORE_IOPAD(0x10FC) (BUFFER_CLASS_B | PIN_PULLUP | MUX_MODE0)	/* mmc1_dat3.mmc1_dat3 */
+			K2G_CORE_IOPAD(0x1100) (BUFFER_CLASS_B | PIN_PULLUP | MUX_MODE0)	/* mmc1_dat2.mmc1_dat2 */
+			K2G_CORE_IOPAD(0x1104) (BUFFER_CLASS_B | PIN_PULLUP | MUX_MODE0)	/* mmc1_dat1.mmc1_dat1 */
+			K2G_CORE_IOPAD(0x1108) (BUFFER_CLASS_B | PIN_PULLUP | MUX_MODE0)	/* mmc1_dat0.mmc1_dat0 */
+			K2G_CORE_IOPAD(0x110C) (BUFFER_CLASS_B | PIN_PULLUP | MUX_MODE0)	/* mmc1_clk.mmc1_clk */
+			K2G_CORE_IOPAD(0x1110) (BUFFER_CLASS_B | PIN_PULLUP | MUX_MODE0)	/* mmc1_cmd.mmc1_cmd */
+			K2G_CORE_IOPAD(0x1114) (BUFFER_CLASS_B | PIN_PULLUP | MUX_MODE3)	/* mmc1_sdcd.gpio0_69 */
+			K2G_CORE_IOPAD(0x1118) (BUFFER_CLASS_B | PIN_PULLUP | MUX_MODE0)	/* mmc1_sdwp.mmc1_sdwp */
+			K2G_CORE_IOPAD(0x111C) (BUFFER_CLASS_B | PIN_PULLUP | MUX_MODE0)	/* mmc1_pow.mmc1_pow */
+		>;
+	};
+
+	i2c0_pins: pinmux_i2c0_pins {
+		pinctrl-single,pins = <
+			K2G_CORE_IOPAD(0x137c) (BUFFER_CLASS_B | PIN_PULLUP | MUX_MODE0)	/* i2c0_scl.i2c0_scl */
+			K2G_CORE_IOPAD(0x1380) (BUFFER_CLASS_B | PIN_PULLUP | MUX_MODE0)	/* i2c0_sda.i2c0_sda */
+		>;
+	};
+
+	i2c1_pins: pinmux_i2c1_pins {
+		pinctrl-single,pins = <
+			K2G_CORE_IOPAD(0x1384) (BUFFER_CLASS_B | PIN_PULLUP | MUX_MODE0)	/* i2c1_scl.i2c1_scl */
+			K2G_CORE_IOPAD(0x1388) (BUFFER_CLASS_B | PIN_PULLUP | MUX_MODE0)	/* i2c1_sda.i2c1_sda */
+		>;
+	};
+
+	user_leds: pinmux_user_leds {
+		pinctrl-single,pins = <
+			K2G_CORE_IOPAD(0x102c) (BUFFER_CLASS_B | PIN_PULLUP | MUX_MODE3)	/* gpmc_ad11.gpio0_11 */
+			K2G_CORE_IOPAD(0x1030) (BUFFER_CLASS_B | PIN_PULLUP | MUX_MODE3)	/* gpmc_ad12.gpio0_12 */
+			K2G_CORE_IOPAD(0x1034) (BUFFER_CLASS_B | PIN_PULLUP | MUX_MODE3)	/* gpmc_ad13.gpio0_13 */
+			K2G_CORE_IOPAD(0x1038) (BUFFER_CLASS_B | PIN_PULLUP | MUX_MODE3)	/* gpmc_ad14.gpio0_14 */
+			K2G_CORE_IOPAD(0x103c) (BUFFER_CLASS_B | PIN_PULLUP | MUX_MODE3)	/* gpmc_ad15.gpio0_15 */
+			K2G_CORE_IOPAD(0x1040) (BUFFER_CLASS_B | PIN_PULLUP | MUX_MODE3)	/* gpmc_clk.gpio0_16 */
+			K2G_CORE_IOPAD(0x104c) (BUFFER_CLASS_B | PIN_PULLUP | MUX_MODE3)	/* gpmc_wen.gpio0_19 */
+			K2G_CORE_IOPAD(0x10b0) (BUFFER_CLASS_B | PIN_PULLUP | MUX_MODE3)	/* dss_data9.gpio0_44 */
+			K2G_CORE_IOPAD(0x10ac) (BUFFER_CLASS_B | PIN_PULLUP | MUX_MODE3)	/* dss_data10.gpio0_43 */
+			K2G_CORE_IOPAD(0x10a8) (BUFFER_CLASS_B | PIN_PULLUP | MUX_MODE3)	/* dss_data11.gpio0_42 */
+			K2G_CORE_IOPAD(0x10a4) (BUFFER_CLASS_B | PIN_PULLUP | MUX_MODE3)	/* dss_data12.gpio0_41 */
+			K2G_CORE_IOPAD(0x11b8) (BUFFER_CLASS_B | PIN_PULLUP | MUX_MODE3)	/* spi2_scsn0.gpio0_101 */
+			K2G_CORE_IOPAD(0x11bc) (BUFFER_CLASS_B | PIN_PULLUP | MUX_MODE3)	/* spi2_scsn1.gpio0_102 */
+		>;
+	};
 };
 
 &uart0 {
@@ -51,3 +294,96 @@
 	memory-region = <&dsp_common_memory>;
 	status = "okay";
 };
+
+&qspi {
+	pinctrl-names = "default";
+	pinctrl-0 = <&qspi_pins>;
+	cdns,rclk-en;
+	status = "okay";
+
+	flash0: m25p80@0 {
+		compatible = "s25fl256s1", "jedec,spi-nor";
+		reg = <0>;
+		spi-tx-bus-width = <1>;
+		spi-rx-bus-width = <4>;
+		spi-max-frequency = <96000000>;
+		#address-cells = <1>;
+		#size-cells = <1>;
+		cdns,read-delay = <5>;
+		cdns,tshsl-ns = <500>;
+		cdns,tsd2d-ns = <500>;
+		cdns,tchsh-ns = <119>;
+		cdns,tslch-ns = <119>;
+
+		partition@0 {
+			label = "QSPI.u-boot";
+			reg = <0x00000000 0x00100000>;
+		};
+		partition@1 {
+			label = "QSPI.u-boot-env";
+			reg = <0x00100000 0x00040000>;
+		};
+		partition@2 {
+			label = "QSPI.skern";
+			reg = <0x00140000 0x0040000>;
+		};
+		partition@3 {
+			label = "QSPI.pmmc-firmware";
+			reg = <0x00180000 0x0040000>;
+		};
+		partition@4 {
+			label = "QSPI.kernel";
+			reg = <0x001c0000 0x0800000>;
+		};
+		partition@5 {
+			label = "QSPI.u-boot-spl-os";
+			reg = <0x009c0000 0x0040000>;
+		};
+		partition@6 {
+			label = "QSPI.file-system";
+			reg = <0x00a00000 0x1600000>;
+		};
+	};
+};
+
+&gpio0 {
+	status = "okay";
+};
+
+&gpio1 {
+	status = "okay";
+};
+
+&mmc1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&mmc1_pins>;
+	vmmc-supply = <&vdd_3v3>;
+	cd-gpios = <&gpio0 69 GPIO_ACTIVE_LOW>;
+	status = "okay";
+};
+
+&i2c0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c0_pins>;
+	status = "okay";
+
+	eeprom@50 {
+		compatible = "atmel,24c256";
+		reg = <0x50>;
+	};
+};
+
+&i2c1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c1_pins>;
+	status = "okay";
+	clock-frequency = <400000>;
+
+	pca9536: gpio@41 {
+		compatible = "ti,pca9536";
+		reg = <0x41>;
+		gpio-controller;
+		#gpio-cells = <2>;
+		vcc-supply = <&vdd_3v3>;
+	};
+};
-- 
2.15.0

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