[PATCH v2 1/2] arm64: renesas: h3ulcb: initial device tree

[Vladimir Barinov <vladimir.barinov@cogentembedded.com>]

Add the initial device tree for the R8A7795 SoC based H3ULCB low cost
board.

This commit supports the following peripherals:
- SCIF (console), Ethernet, SD, USB Host, Audio, GPIO LEDs

Signed-off-by: Vladimir Barinov <vladimir.barinov@cogentembedded.com>
---
Changes in version 2:
- removed bootargs property
- removed comment related to amixer

 arch/arm64/boot/dts/renesas/Makefile           |   2 +-
 arch/arm64/boot/dts/renesas/r8a7795-h3ulcb.dts | 316 +++++++++++++++++++++++++
 2 files changed, 317 insertions(+), 1 deletion(-)
 create mode 100644 arch/arm64/boot/dts/renesas/r8a7795-h3ulcb.dts

diff --git a/arch/arm64/boot/dts/renesas/Makefile b/arch/arm64/boot/dts/renesas/Makefile
index 17139f7..eb72830 100644
--- a/arch/arm64/boot/dts/renesas/Makefile
+++ b/arch/arm64/boot/dts/renesas/Makefile
@@ -1,4 +1,4 @@
-dtb-$(CONFIG_ARCH_R8A7795) += r8a7795-salvator-x.dtb
+dtb-$(CONFIG_ARCH_R8A7795) += r8a7795-salvator-x.dtb r8a7795-h3ulcb.dtb
 dtb-$(CONFIG_ARCH_R8A7796) += r8a7796-salvator-x.dtb
 
 always		:= $(dtb-y)
diff --git a/arch/arm64/boot/dts/renesas/r8a7795-h3ulcb.dts b/arch/arm64/boot/dts/renesas/r8a7795-h3ulcb.dts
new file mode 100644
index 0000000..aec430a
--- /dev/null
+++ b/arch/arm64/boot/dts/renesas/r8a7795-h3ulcb.dts
@@ -0,0 +1,316 @@
+/*
+ * Device Tree Source for the H3ULCB board
+ *
+ * Copyright (C) 2016 Renesas Electronics Corp.
+ * Copyright (C) 2016 Cogent Embedded, Inc.
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2.  This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ */
+
+/dts-v1/;
+#include "r8a7795.dtsi"
+#include <dt-bindings/gpio/gpio.h>
+
+/ {
+	model = "Renesas H3ULCB board based on r8a7795";
+	compatible = "renesas,h3ulcb", "renesas,r8a7795";
+
+	aliases {
+		serial0 = &scif2;
+		ethernet0 = &avb;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
+	memory@48000000 {
+		device_type = "memory";
+		/* first 128MB is reserved for secure area. */
+		reg = <0x0 0x48000000 0x0 0x38000000>;
+	};
+
+	leds {
+		compatible = "gpio-leds";
+		led4 {
+			gpios = <&gpio6 11 GPIO_ACTIVE_HIGH>;
+		};
+		led5 {
+			gpios = <&gpio6 12 GPIO_ACTIVE_HIGH>;
+		};
+		led6 {
+			gpios = <&gpio6 13 GPIO_ACTIVE_HIGH>;
+		};
+	};
+
+	x12_clk: x12_clk {
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <24576000>;
+	};
+
+	vcc_sdhi0: regulator-vcc-sdhi0 {
+		compatible = "regulator-fixed";
+
+		regulator-name = "SDHI0 Vcc";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+
+		gpio = <&gpio5 2 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+	};
+
+	vccq_sdhi0: regulator-vccq-sdhi0 {
+		compatible = "regulator-gpio";
+
+		regulator-name = "SDHI0 VccQ";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <3300000>;
+
+		gpios = <&gpio5 1 GPIO_ACTIVE_HIGH>;
+		gpios-states = <1>;
+		states = <3300000 1
+			  1800000 0>;
+	};
+
+	audio_clkout: audio_clkout {
+		/*
+		 * This is same as <&rcar_sound 0>
+		 * but needed to avoid cs2000/rcar_sound probe dead-lock
+		 */
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <11289600>;
+	};
+
+	rsnd_ak4613: sound {
+		compatible = "simple-audio-card";
+
+		simple-audio-card,format = "left_j";
+		simple-audio-card,bitclock-master = <&sndcpu>;
+		simple-audio-card,frame-master = <&sndcpu>;
+
+		sndcpu: simple-audio-card,cpu {
+			sound-dai = <&rcar_sound>;
+		};
+
+		sndcodec: simple-audio-card,codec {
+			sound-dai = <&ak4613>;
+		};
+	};
+};
+
+&extal_clk {
+	clock-frequency = <16666666>;
+};
+
+&extalr_clk {
+	clock-frequency = <32768>;
+};
+
+&pfc {
+	pinctrl-0 = <&scif_clk_pins>;
+	pinctrl-names = "default";
+
+	scif2_pins: scif2 {
+		groups = "scif2_data_a";
+		function = "scif2";
+	};
+
+	scif_clk_pins: scif_clk {
+		groups = "scif_clk_a";
+		function = "scif_clk";
+	};
+
+	i2c2_pins: i2c2 {
+		groups = "i2c2_a";
+		function = "i2c2";
+	};
+
+	avb_pins: avb {
+		groups = "avb_mdc";
+		function = "avb";
+	};
+
+	sdhi0_pins_3v3: sd0_3v3 {
+		groups = "sdhi0_data4", "sdhi0_ctrl";
+		function = "sdhi0";
+		power-source = <3300>;
+	};
+
+	sdhi0_pins_1v8: sd0_1v8 {
+		groups = "sdhi0_data4", "sdhi0_ctrl";
+		function = "sdhi0";
+		power-source = <1800>;
+	};
+
+	sound_pins: sound {
+		groups = "ssi01239_ctrl", "ssi0_data", "ssi1_data_a";
+		function = "ssi";
+	};
+
+	sound_clk_pins: sound_clk {
+		groups = "audio_clk_a_a", "audio_clk_b_a", "audio_clk_c_a",
+			 "audio_clkout_a", "audio_clkout3_a";
+		function = "audio_clk";
+	};
+
+	usb1_pins: usb1 {
+		groups = "usb1";
+		function = "usb1";
+	};
+};
+
+&scif2 {
+	pinctrl-0 = <&scif2_pins>;
+	pinctrl-names = "default";
+
+	status = "okay";
+};
+
+&scif_clk {
+	clock-frequency = <14745600>;
+	status = "okay";
+};
+
+&i2c2 {
+	pinctrl-0 = <&i2c2_pins>;
+	pinctrl-names = "default";
+
+	status = "okay";
+
+	clock-frequency = <100000>;
+
+	ak4613: codec@10 {
+		compatible = "asahi-kasei,ak4613";
+		#sound-dai-cells = <0>;
+		reg = <0x10>;
+		clocks = <&rcar_sound 3>;
+
+		asahi-kasei,in1-single-end;
+		asahi-kasei,in2-single-end;
+		asahi-kasei,out1-single-end;
+		asahi-kasei,out2-single-end;
+		asahi-kasei,out3-single-end;
+		asahi-kasei,out4-single-end;
+		asahi-kasei,out5-single-end;
+		asahi-kasei,out6-single-end;
+	};
+
+	cs2000: clk_multiplier@4f {
+		#clock-cells = <0>;
+		compatible = "cirrus,cs2000-cp";
+		reg = <0x4f>;
+		clocks = <&audio_clkout>, <&x12_clk>;
+		clock-names = "clk_in", "ref_clk";
+
+		assigned-clocks = <&cs2000>;
+		assigned-clock-rates = <24576000>; /* 1/1 divide */
+	};
+};
+
+&rcar_sound {
+	pinctrl-0 = <&sound_pins &sound_clk_pins>;
+	pinctrl-names = "default";
+
+	/* Single DAI */
+	#sound-dai-cells = <0>;
+
+	/* audio_clkout0/1/2/3 */
+	#clock-cells = <1>;
+	clock-frequency = <11289600>;
+
+	status = "okay";
+
+	/* update <audio_clk_b> to <cs2000> */
+	clocks = <&cpg CPG_MOD 1005>,
+		 <&cpg CPG_MOD 1006>, <&cpg CPG_MOD 1007>,
+		 <&cpg CPG_MOD 1008>, <&cpg CPG_MOD 1009>,
+		 <&cpg CPG_MOD 1010>, <&cpg CPG_MOD 1011>,
+		 <&cpg CPG_MOD 1012>, <&cpg CPG_MOD 1013>,
+		 <&cpg CPG_MOD 1014>, <&cpg CPG_MOD 1015>,
+		 <&cpg CPG_MOD 1022>, <&cpg CPG_MOD 1023>,
+		 <&cpg CPG_MOD 1024>, <&cpg CPG_MOD 1025>,
+		 <&cpg CPG_MOD 1026>, <&cpg CPG_MOD 1027>,
+		 <&cpg CPG_MOD 1028>, <&cpg CPG_MOD 1029>,
+		 <&cpg CPG_MOD 1030>, <&cpg CPG_MOD 1031>,
+		 <&cpg CPG_MOD 1019>, <&cpg CPG_MOD 1018>,
+		 <&audio_clk_a>, <&cs2000>,
+		 <&audio_clk_c>,
+		 <&cpg CPG_CORE R8A7795_CLK_S0D4>;
+
+	rcar_sound,dai {
+		dai0 {
+			playback = <&ssi0 &src0 &dvc0>;
+			capture  = <&ssi1 &src1 &dvc1>;
+		};
+	};
+};
+
+&sdhi0 {
+	pinctrl-0 = <&sdhi0_pins_3v3>;
+	pinctrl-1 = <&sdhi0_pins_1v8>;
+	pinctrl-names = "default", "state_uhs";
+
+	vmmc-supply = <&vcc_sdhi0>;
+	vqmmc-supply = <&vccq_sdhi0>;
+	cd-gpios = <&gpio3 12 GPIO_ACTIVE_LOW>;
+	bus-width = <4>;
+	status = "okay";
+};
+
+&ssi1 {
+	shared-pin;
+};
+
+&wdt0 {
+	timeout-sec = <60>;
+	status = "okay";
+};
+
+&audio_clk_a {
+	clock-frequency = <22579200>;
+};
+
+&avb {
+	pinctrl-0 = <&avb_pins>;
+	pinctrl-names = "default";
+	renesas,no-ether-link;
+	phy-handle = <&phy0>;
+	status = "okay";
+
+	phy0: ethernet-phy@0 {
+		rxc-skew-ps = <900>;
+		rxdv-skew-ps = <0>;
+		rxd0-skew-ps = <0>;
+		rxd1-skew-ps = <0>;
+		rxd2-skew-ps = <0>;
+		rxd3-skew-ps = <0>;
+		txc-skew-ps = <900>;
+		txen-skew-ps = <0>;
+		txd0-skew-ps = <0>;
+		txd1-skew-ps = <0>;
+		txd2-skew-ps = <0>;
+		txd3-skew-ps = <0>;
+		reg = <0>;
+		interrupt-parent = <&gpio2>;
+		interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
+	};
+};
+
+&usb2_phy1 {
+	pinctrl-0 = <&usb1_pins>;
+	pinctrl-names = "default";
+
+	status = "okay";
+};
+
+&ehci1 {
+	status = "okay";
+};
+
+&ohci1 {
+	status = "okay";
+};
-- 
1.9.1