Added driver and device tree for CTAG face2|4 Audio Card

Author: henrix

arch/arm/boot/dts/am335x-bonegreen-ctag-face.dts

@@ -0,0 +1,99 @@
+/*
+ * Base device tree of BeagleBone Green with AD1938 AudioCard
+ *
+ * Author:  Henrik Langer <[email protected]>
+ *			based on
+				BeagleBone Black and BeagleBone Green device tree
+ *
+ * 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 "am33xx.dtsi"
+#include "am335x-bone-common.dtsi"
+
+/ {
+	model = "TI AM335x BeagleBone Green AudioCard";
+	compatible = "ti,am335x-bone-green", "ti,am335x-bone-black", "ti,am335x-bone", "ti,am33xx";
+};
+
+&ldo3_reg {
+	regulator-min-microvolt = <1800000>;
+	regulator-max-microvolt = <1800000>;
+	regulator-always-on;
+};
+
+&mmc1 {
+	vmmc-supply = <&vmmcsd_fixed>;
+};
+
+&mmc2 {
+	vmmc-supply = <&vmmcsd_fixed>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&emmc_pins>;
+	bus-width = <8>;
+	status = "okay";
+};
+
+&sgx {
+	status = "okay";
+};
+
+&am33xx_pinmux {
+	mcasp0_pins: mcasp0_pins {
+		pinctrl-single,pins = <
+			0x1ac (PIN_INPUT_PULLDOWN | MUX_MODE0)	/* mcasp0_ahclkx */
+			0x19c (PIN_OUTPUT_PULLDOWN | MUX_MODE2) /* mcasp0_axr2 */
+			0x194 (PIN_INPUT_PULLDOWN | MUX_MODE0)	/* mcasp0_fsx */
+			0x190 (PIN_INPUT_PULLDOWN | MUX_MODE0)	/* mcasp0_aclkx */
+			0x1a4 (PIN_INPUT_PULLDOWN | MUX_MODE0)	/* mcasp0_fsr */
+			0x078 (PIN_INPUT_PULLDOWN | MUX_MODE6)	/* mcasp0_aclkr */
+			0x198 (PIN_INPUT_PULLDOWN | MUX_MODE0)	/* mcasp0_axr0 */
+			0x06c (PIN_OUTPUT_PULLDOWN | MUX_MODE7)	/* gpio1[27] (enable oscillator) */
+		>;
+	};
+
+	mcasp0_pins_sleep: mcasp0_pins_sleep {
+		pinctrl-single,pins = <
+			0x1ac (PIN_INPUT_PULLDOWN | MUX_MODE7)	/* mcasp0_ahclkx */
+			0x19c (PIN_INPUT_PULLDOWN | MUX_MODE7)	/* mcasp0_axr2 */
+			0x194 (PIN_INPUT_PULLDOWN | MUX_MODE7)	/* mcasp0_fsx */
+			0x190 (PIN_INPUT_PULLDOWN | MUX_MODE7)	/* mcasp0_aclkx */
+			0x1a4 (PIN_INPUT_PULLDOWN | MUX_MODE0)	/* mcasp0_fsr */
+			0x078 (PIN_INPUT_PULLDOWN | MUX_MODE6)	/* mcasp0_aclkr */
+			0x198 (PIN_INPUT_PULLDOWN | MUX_MODE7)	/* mcasp0_axr0 */
+			0x06c (PIN_INPUT_PULLDOWN | MUX_MODE7)	/* gpio1[27] */
+		>;
+	};
+};
+
+&mcasp0	{
+	pinctrl-names = "default", "sleep";
+	pinctrl-0 = <&mcasp0_pins>;
+	pinctrl-1 = <&mcasp0_pins_sleep>;
+	status = "okay";
+	op-mode = <0>;	/* MCASP_IIS_MODE */
+	tdm-slots = <2>;
+	serial-dir = <	/* 0: INACTIVE, 1: TX, 2: RX */
+			2 0 1 0
+		>;
+	tx-num-evt = <1>;
+	rx-num-evt = <1>;
+};
+
+/ {
+	clk_mcasp0_fixed: clk_mcasp0_fixed {
+	      #clock-cells = <0>;
+	      compatible = "fixed-clock";
+	      clock-frequency = <24576000>;
+	};
+
+	clk_mcasp0: clk_mcasp0 {
+	      #clock-cells = <0>;
+	      compatible = "gpio-gate-clock";
+	      clocks = <&clk_mcasp0_fixed>;
+	      enable-gpios = <&gpio1 27 0>; /* BeagleBone Black Clk enable on GPIO1_27 */
+	};
+};