Merge tag 'renesas-arm64-dt2-for-v4.5' of...

Merge tag 'renesas-arm64-dt2-for-v4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/dt64

Merge "Second Round of Renesas ARM64 Based SoC DT Updates for v4.5" from Simon Horman:

* Enable GPIO, EthernetAVB, I2C and Sound on r8a7795/salvator-x

* tag 'renesas-arm64-dt2-for-v4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
  arm64: renesas: salvator-x: Sound DVC support
  arm64: renesas: salvator-x: Sound SRC support
  arm64: renesas: salvator-x: Sound SSI DMA support via BUSIF
  arm64: renesas: salvator-x: Sound SSI DMA support
  arm64: renesas: salvator-x: Sound SSI PIO support
  arm64: renesas: r8a7795: Sound DVC support
  arm64: renesas: r8a7795: Sound SRC support
  arm64: renesas: r8a7795: Sound SSI DMA support
  arm64: renesas: r8a7795: Sound SSI PIO support
  arm64: renesas: r8a7795: add AUDIO_DMAC support
  arm64: renesas: r8a7795 dtsi: Add all HSCIF nodes
  arm64: renesas: salvator-x: enable I2C
  arm64: renesas: r8a7795: add I2C support
  arm64: renesas: salvator-x: Setup ethernet0 alias for U-Boot
  arm64: dts: r8a7795: enable nfs root on Salvator-X board
  arm64: dts: r8a7795: enable EthernetAVB on Salvator-X
  arm64: dts: r8a7795: add EthernetAVB device node
  arm64: dts: r8a7795: add GPIO nodes

arch/arm64/boot/dts/renesas/r8a7795-salvator-x.dts

@@ -8,6 +8,29 @@
  * kind, whether express or implied.
  */
 
+/*
+ * SSI-AK4613
+ *
+ * This command is required when Playback/Capture
+ *
+ *	amixer set "DVC Out" 100%
+ *	amixer set "DVC In" 100%
+ *
+ * You can use Mute
+ *
+ *	amixer set "DVC Out Mute" on
+ *	amixer set "DVC In Mute" on
+ *
+ * You can use Volume Ramp
+ *
+ *	amixer set "DVC Out Ramp Up Rate"   "0.125 dB/64 steps"
+ *	amixer set "DVC Out Ramp Down Rate" "0.125 dB/512 steps"
+ *	amixer set "DVC Out Ramp" on
+ *	aplay xxx.wav &
+ *	amixer set "DVC Out"  80%  // Volume Down
+ *	amixer set "DVC Out" 100%  // Volume Up
+ */
+
 /dts-v1/;
 #include "r8a7795.dtsi"
 
@@ -18,10 +41,11 @@ / {
 	aliases {
 		serial0 = &scif2;
 		serial1 = &scif1;
+		ethernet0 = &avb;
 	};
 
 	chosen {
-		bootargs = "ignore_loglevel";
+		bootargs = "ignore_loglevel rw root=/dev/nfs ip=dhcp";
 		stdout-path = "serial0:115200n8";
 	};
 
@@ -30,6 +54,28 @@ memory@48000000 {
 		/* first 128MB is reserved for secure area. */
 		reg = <0x0 0x48000000 0x0 0x38000000>;
 	};
+
+	x12_clk: x12_clk {
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <24576000>;
+	};
+
+	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 {
@@ -45,6 +91,27 @@ scif2_pins: scif2 {
 		renesas,groups = "scif2_data_a";
 		renesas,function = "scif2";
 	};
+
+	i2c2_pins: i2c2 {
+		renesas,groups = "i2c2_a";
+		renesas,function = "i2c2";
+	};
+
+	avb_pins: avb {
+		renesas,groups = "avb_mdc";
+		renesas,function = "avb";
+	};
+
+	sound_pins: sound {
+		renesas,groups = "ssi01239_ctrl", "ssi0_data", "ssi1_data_a";
+		renesas,function = "ssi";
+	};
+
+	sound_clk_pins: sound_clk {
+		renesas,groups = "audio_clk_a_a", "audio_clk_b_a", "audio_clk_c_a",
+				 "audio_clkout_a", "audio_clkout3_a";
+		renesas,function = "audio_clk";
+	};
 };
 
 &scif1 {
@@ -60,3 +127,74 @@ &scif2 {
 
 	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>;
+	};
+};
+
+&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";
+
+	rcar_sound,dai {
+		dai0 {
+			playback = <&ssi0 &src0 &dvc0>;
+			capture  = <&ssi1 &src1 &dvc1>;
+		};
+	};
+};
+
+&ssi1 {
+	shared-pin;
+};
+
+&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>;
+	};
+};