arm: am437x: cm-t43: Add device tree, enable OF_CONTROL

Add device tree from Linux for driver model conversion
and enable OF_CONTROL. This will remove the following compile
warning:
==================================================
Device Tree Source is not correctly specified.
Please define 'CONFIG_DEFAULT_DEVICE_TREE'
or build with 'DEVICE_TREE=<device_tree>' argument
===================================================
Target was compile tested, build was clean.

Signed-off-by: Suniel Mahesh <sunil.m@techveda.org>

3 files changed, 424 insertions, 1 deletions

diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index aac1b83d49..62da168ef8 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -302,7 +302,8 @@ dtb-$(CONFIG_AM33XX) += \
 dtb-$(CONFIG_AM43XX) += am437x-gp-evm.dtb am437x-sk-evm.dtb	\
 	am43x-epos-evm.dtb \
 	am437x-idk-evm.dtb \
-	am4372-generic.dtb
+	am4372-generic.dtb \
+	am437x-cm-t43.dtb
 dtb-$(CONFIG_TARGET_AM3517_EVM) += am3517-evm.dtb
 dtb-$(CONFIG_TI816X) += dm8168-evm.dtb
 dtb-$(CONFIG_THUNDERX) += thunderx-88xx.dtb
diff --git a/arch/arm/dts/am437x-cm-t43.dts b/arch/arm/dts/am437x-cm-t43.dts
new file mode 100644
index 0000000000..063113a5da
--- /dev/null
+++ b/arch/arm/dts/am437x-cm-t43.dts
@@ -0,0 +1,420 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2015 CompuLab, Ltd. - http://www.compulab.co.il/
+ */
+
+/dts-v1/;
+
+#include <dt-bindings/pinctrl/am43xx.h>
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+#include "am4372.dtsi"
+
+/ {
+	model = "CompuLab CM-T43";
+	compatible = "compulab,am437x-cm-t43", "ti,am4372", "ti,am43";
+
+	leds {
+		compatible = "gpio-leds";
+
+		ledb {
+			label = "cm-t43:green";
+			gpios = <&gpio0 24 GPIO_ACTIVE_HIGH>;
+			linux,default-trigger = "heartbeat";
+		};
+	};
+
+	vmmc_3v3: fixedregulator-v3_3 {
+		compatible = "regulator-fixed";
+		regulator-name = "vmmc_3v3";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		regulator-always-on;
+		enable-active-high;
+	};
+};
+
+&am43xx_pinmux {
+	pinctrl-names = "default";
+	pinctrl-0 = <&cm_t43_led_pins>;
+
+	cm_t43_led_pins: cm_t43_led_pins {
+		pinctrl-single,pins = <
+			AM4372_IOPAD(0xa78, MUX_MODE7)
+		>;
+	};
+
+	i2c0_pins: i2c0_pins {
+		pinctrl-single,pins = <
+			AM4372_IOPAD(0x988, PIN_INPUT_PULLUP | SLEWCTRL_FAST | MUX_MODE0)  /* i2c0_sda.i2c0_sda */
+			AM4372_IOPAD(0x98c, PIN_INPUT_PULLUP | SLEWCTRL_FAST | MUX_MODE0)  /* i2c0_scl.i2c0_scl */
+		>;
+	};
+
+	emmc_pins: emmc_pins {
+		pinctrl-single,pins = <
+			AM4372_IOPAD(0x820, PIN_INPUT_PULLUP | MUX_MODE2) /* gpmc_ad8.mmc1_dat0 */
+			AM4372_IOPAD(0x824, PIN_INPUT_PULLUP | MUX_MODE2) /* gpmc_ad9.mmc1_dat1 */
+			AM4372_IOPAD(0x828, PIN_INPUT_PULLUP | MUX_MODE2) /* gpmc_ad10.mmc1_dat2 */
+			AM4372_IOPAD(0x82c, PIN_INPUT_PULLUP | MUX_MODE2) /* gpmc_ad11.mmc1_dat3 */
+			AM4372_IOPAD(0x830, PIN_INPUT_PULLUP | MUX_MODE2) /* gpmc_ad12.mmc1_dat4 */
+			AM4372_IOPAD(0x834, PIN_INPUT_PULLUP | MUX_MODE2) /* gpmc_ad13.mmc1_dat5 */
+			AM4372_IOPAD(0x838, PIN_INPUT_PULLUP | MUX_MODE2) /* gpmc_ad14.mmc1_dat6 */
+			AM4372_IOPAD(0x83c, PIN_INPUT_PULLUP | MUX_MODE2) /* gpmc_ad15.mmc1_dat7 */
+			AM4372_IOPAD(0x880, PIN_INPUT_PULLUP | MUX_MODE2) /* gpmc_csn1.mmc1_clk */
+			AM4372_IOPAD(0x884, PIN_INPUT_PULLUP | MUX_MODE2) /* gpmc_csn2.mmc1_cmd */
+		>;
+	};
+
+	spi0_pins: pinmux_spi0_pins {
+		pinctrl-single,pins = <
+			AM4372_IOPAD(0x950, PIN_INPUT | MUX_MODE0) /* spi0_sclk.spi0_sclk */
+			AM4372_IOPAD(0x954, PIN_INPUT | MUX_MODE0) /* spi0_d0.spi0_d0 */
+			AM4372_IOPAD(0x958, PIN_OUTPUT | MUX_MODE0) /* spi0_d1.spi0_d1 */
+			AM4372_IOPAD(0x95C, PIN_OUTPUT | MUX_MODE0) /* spi0_cs0.spi0_cs0 */
+		>;
+	};
+
+	nand_flash_x8: nand_flash_x8 {
+		pinctrl-single,pins = <
+			AM4372_IOPAD(0x800, PIN_INPUT | PULL_DISABLE | MUX_MODE0)
+			AM4372_IOPAD(0x804, PIN_INPUT | PULL_DISABLE | MUX_MODE0)
+			AM4372_IOPAD(0x808, PIN_INPUT | PULL_DISABLE | MUX_MODE0)
+			AM4372_IOPAD(0x80c, PIN_INPUT | PULL_DISABLE | MUX_MODE0)
+			AM4372_IOPAD(0x810, PIN_INPUT | PULL_DISABLE | MUX_MODE0)
+			AM4372_IOPAD(0x814, PIN_INPUT | PULL_DISABLE | MUX_MODE0)
+			AM4372_IOPAD(0x818, PIN_INPUT | PULL_DISABLE | MUX_MODE0)
+			AM4372_IOPAD(0x81c, PIN_INPUT | PULL_DISABLE | MUX_MODE0)
+			AM4372_IOPAD(0x870, PIN_INPUT_PULLUP  | MUX_MODE0)
+			AM4372_IOPAD(0x874, PIN_OUTPUT_PULLUP | MUX_MODE0)
+			AM4372_IOPAD(0x87c, PIN_OUTPUT_PULLUP | MUX_MODE0)
+			AM4372_IOPAD(0x898, PIN_OUTPUT_PULLDOWN | MUX_MODE0)
+			AM4372_IOPAD(0x894, PIN_OUTPUT_PULLDOWN | MUX_MODE0)
+			AM4372_IOPAD(0x890, PIN_OUTPUT_PULLDOWN | MUX_MODE0)
+			AM4372_IOPAD(0x89c, PIN_OUTPUT_PULLDOWN | MUX_MODE0)
+		>;
+	};
+
+	cpsw_default: cpsw_default {
+		pinctrl-single,pins = <
+			/* Slave 1 */
+			AM4372_IOPAD(0x914, PIN_OUTPUT_PULLDOWN | MUX_MODE2)	/* mii1_txen.rgmii1_txen */
+			AM4372_IOPAD(0x918, PIN_INPUT_PULLDOWN | MUX_MODE2)	/* mii1_rxdv.rgmii1_rxctl */
+			AM4372_IOPAD(0x91c, PIN_OUTPUT_PULLDOWN | MUX_MODE2)	/* mii1_txd1.rgmii1_txd3 */
+			AM4372_IOPAD(0x920, PIN_OUTPUT_PULLDOWN | MUX_MODE2)	/* mii1_txd0.rgmii1_txd2 */
+			AM4372_IOPAD(0x924, PIN_OUTPUT_PULLDOWN | MUX_MODE2)	/* mii1_txd1.rgmii1_txd1 */
+			AM4372_IOPAD(0x928, PIN_OUTPUT_PULLDOWN | MUX_MODE2)	/* mii1_txd0.rgmii1_txd0 */
+			AM4372_IOPAD(0x92c, PIN_OUTPUT_PULLDOWN | MUX_MODE2)	/* mii1_txclk.rmii1_tclk */
+			AM4372_IOPAD(0x930, PIN_INPUT_PULLDOWN | MUX_MODE2)	/* mii1_rxclk.rmii1_rclk */
+			AM4372_IOPAD(0x934, PIN_INPUT_PULLDOWN | MUX_MODE2)	/* mii1_rxd1.rgmii1_rxd3 */
+			AM4372_IOPAD(0x938, PIN_INPUT_PULLDOWN | MUX_MODE2)	/* mii1_rxd0.rgmii1_rxd2 */
+			AM4372_IOPAD(0x93c, PIN_INPUT_PULLDOWN | MUX_MODE2)	/* mii1_rxd1.rgmii1_rxd1 */
+			AM4372_IOPAD(0x940, PIN_INPUT_PULLDOWN | MUX_MODE2)	/* mii1_rxd0.rgmii1_rxd0 */
+			AM4372_IOPAD(0xa74, MUX_MODE3)
+			/* Slave 2 */
+			AM4372_IOPAD(0x840, PIN_OUTPUT_PULLDOWN | MUX_MODE2)	/* gpmc_a0.txen */
+			AM4372_IOPAD(0x844, PIN_INPUT_PULLDOWN  | MUX_MODE2)	/* gpmc_a1.rxctl */
+			AM4372_IOPAD(0x848, PIN_OUTPUT_PULLDOWN | MUX_MODE2)	/* gpmc_a2.txd3 */
+			AM4372_IOPAD(0x84c, PIN_OUTPUT_PULLDOWN | MUX_MODE2)	/* gpmc_a3.txd2 */
+			AM4372_IOPAD(0x850, PIN_OUTPUT_PULLDOWN | MUX_MODE2)	/* gpmc_a4.txd1 */
+			AM4372_IOPAD(0x854, PIN_OUTPUT_PULLDOWN | MUX_MODE2)	/* gpmc_a5.txd0 */
+			AM4372_IOPAD(0x858, PIN_OUTPUT_PULLDOWN | MUX_MODE2)	/* gpmc_a6.tclk */
+			AM4372_IOPAD(0x85c, PIN_INPUT_PULLDOWN  | MUX_MODE2)	/* gpmc_a7.rclk */
+			AM4372_IOPAD(0x860, PIN_INPUT_PULLDOWN  | MUX_MODE2)	/* gpmc_a8.rxd3 */
+			AM4372_IOPAD(0x864, PIN_INPUT_PULLDOWN  | MUX_MODE2)	/* gpmc_a9.rxd2 */
+			AM4372_IOPAD(0x868, PIN_INPUT_PULLDOWN  | MUX_MODE2)	/* gpmc_a10.rxd1 */
+			AM4372_IOPAD(0x86c, PIN_INPUT_PULLDOWN  | MUX_MODE2)	/* gpmc_a11.rxd0 */
+			AM4372_IOPAD(0xa38, MUX_MODE7)
+		>;
+	};
+
+	davinci_mdio_default: davinci_mdio_default {
+		pinctrl-single,pins = <
+			/* MDIO */
+			AM4372_IOPAD(0x948, PIN_INPUT_PULLUP | SLEWCTRL_FAST | MUX_MODE0)	/* mdio_data.mdio_data */
+			AM4372_IOPAD(0x94c, PIN_OUTPUT_PULLUP | MUX_MODE0)			/* mdio_clk.mdio_clk */
+		>;
+	};
+};
+
+&gpmc {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&nand_flash_x8>;
+	ranges = <0 0 0x08000000 0x1000000>;
+	nand@0,0 {
+		compatible = "ti,omap2-nand";
+		reg = <0 0 4>;		/* CS0, offset 0, IO size 4 */
+		interrupt-parent = <&gpmc>;
+		interrupts = <0 IRQ_TYPE_NONE>, /* fifoevent */
+			     <1 IRQ_TYPE_NONE>;	/* termcount */
+		ti,nand-ecc-opt = "bch8";
+		ti,elm-id = <&elm>;
+
+		nand-bus-width = <8>;
+		gpmc,device-width = <1>;
+		gpmc,sync-clk-ps = <0>;
+		gpmc,cs-on-ns = <0>;
+		gpmc,cs-rd-off-ns = <44>;
+		gpmc,cs-wr-off-ns = <44>;
+		gpmc,adv-on-ns = <6>;
+		gpmc,adv-rd-off-ns = <34>;
+		gpmc,adv-wr-off-ns = <44>;
+		gpmc,we-on-ns = <0>;
+		gpmc,we-off-ns = <40>;
+		gpmc,oe-on-ns = <0>;
+		gpmc,oe-off-ns = <54>;
+		gpmc,access-ns = <64>;
+		gpmc,rd-cycle-ns = <82>;
+		gpmc,wr-cycle-ns = <82>;
+		gpmc,bus-turnaround-ns = <0>;
+		gpmc,cycle2cycle-delay-ns = <0>;
+		gpmc,clk-activation-ns = <0>;
+		gpmc,wr-access-ns = <40>;
+		gpmc,wr-data-mux-bus-ns = <0>;
+
+		#address-cells = <1>;
+		#size-cells = <1>;
+		/* MTD partition table */
+		partition@0 {
+			label = "kernel";
+			reg = <0x0 0x00980000>;
+		};
+		partition@980000 {
+			label = "dtb";
+			reg = <0x00980000 0x00080000>;
+		};
+		partition@a00000 {
+			label = "rootfs";
+			reg = <0x00a00000 0x0>;
+		};
+	};
+};
+
+&i2c0 {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c0_pins>;
+	clock-frequency = <100000>;
+
+	tps65218: tps65218@24 {
+		compatible = "ti,tps65218";
+		reg = <0x24>;
+		interrupts = <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>; /* NMIn */
+		interrupt-parent = <&gic>;
+		interrupt-controller;
+		#interrupt-cells = <2>;
+
+		dcdc1: regulator-dcdc1 {
+			regulator-name = "vdd_core";
+			regulator-min-microvolt = <912000>;
+			regulator-max-microvolt = <1144000>;
+			regulator-boot-on;
+			regulator-always-on;
+		};
+
+		dcdc2: regulator-dcdc2 {
+			regulator-name = "vdd_mpu";
+			regulator-min-microvolt = <912000>;
+			regulator-max-microvolt = <1378000>;
+			regulator-boot-on;
+			regulator-always-on;
+		};
+
+		dcdc3: regulator-dcdc3 {
+			regulator-name = "vdcdc3";
+			regulator-suspend-enable;
+			regulator-min-microvolt = <1500000>;
+			regulator-max-microvolt = <1500000>;
+			regulator-boot-on;
+			regulator-always-on;
+		};
+
+		dcdc5: regulator-dcdc5 {
+			regulator-name = "v1_0bat";
+			regulator-min-microvolt = <1000000>;
+			regulator-max-microvolt = <1000000>;
+			regulator-boot-on;
+			regulator-always-on;
+		};
+
+		dcdc6: regulator-dcdc6 {
+			regulator-name = "v1_8bat";
+			regulator-min-microvolt = <1800000>;
+			regulator-max-microvolt = <1800000>;
+			regulator-boot-on;
+			regulator-always-on;
+		};
+
+		ldo1: regulator-ldo1 {
+			regulator-min-microvolt = <1800000>;
+			regulator-max-microvolt = <1800000>;
+			regulator-boot-on;
+			regulator-always-on;
+		};
+	};
+
+	eeprom_module: at24@50 {
+		compatible = "atmel,24c02";
+		reg = <0x50>;
+		pagesize = <16>;
+	};
+};
+
+&gpio0 {
+	status = "okay";
+};
+
+&gpio1 {
+	status = "okay";
+};
+
+&gpio2 {
+	status = "okay";
+};
+
+&gpio3 {
+	status = "okay";
+};
+
+&gpio4 {
+	status = "okay";
+};
+
+&gpio5 {
+	status = "okay";
+};
+
+&mmc2 {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&emmc_pins>;
+	vmmc-supply = <&vmmc_3v3>;
+	bus-width = <8>;
+	ti,non-removable;
+};
+
+&spi0 {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&spi0_pins>;
+	dmas = <&edma 16 0
+		&edma 17 0>;
+	dma-names = "tx0", "rx0";
+
+	flash: w25q64cvzpig@0 {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		compatible = "jedec,spi-nor";
+		reg = <0>;
+		spi-max-frequency = <20000000>;
+		partition@0 {
+			label = "uboot";
+			reg = <0x0 0xc0000>;
+		};
+
+		partition@c0000 {
+			label = "uboot environment";
+			reg = <0xc0000 0x40000>;
+		};
+
+		partition@100000 {
+			label = "reserved";
+			reg = <0x100000 0x100000>;
+		};
+	};
+};
+
+&mac {
+	pinctrl-names = "default";
+	pinctrl-0 = <&cpsw_default>;
+	dual_emac = <1>;
+	status = "okay";
+};
+
+&davinci_mdio {
+	pinctrl-names = "default";
+	pinctrl-0 = <&davinci_mdio_default>;
+	status = "okay";
+
+	ethphy0: ethernet-phy@0 {
+		reg = <0>;
+	};
+
+	ethphy1: ethernet-phy@1 {
+		reg = <1>;
+	};
+};
+
+&cpsw_emac0 {
+	phy-handle = <&ethphy0>;
+	phy-mode = "rgmii-txid";
+	dual_emac_res_vlan = <1>;
+};
+
+&cpsw_emac1 {
+	phy-handle = <&ethphy1>;
+	phy-mode = "rgmii-txid";
+	dual_emac_res_vlan = <2>;
+};
+
+&dwc3_1 {
+	status = "okay";
+};
+
+&usb2_phy1 {
+	status = "okay";
+};
+
+&usb1 {
+	dr_mode = "host";
+	status = "okay";
+};
+
+&dwc3_2 {
+	status = "okay";
+};
+
+&usb2_phy2 {
+	status = "okay";
+};
+
+&usb2 {
+	dr_mode = "host";
+	status = "okay";
+	interrupts = <GIC_SPI 174 IRQ_TYPE_LEVEL_HIGH>,
+		     <GIC_SPI 174 IRQ_TYPE_LEVEL_HIGH>,
+		     <GIC_SPI 178 IRQ_TYPE_LEVEL_HIGH>;
+	interrupt-names = "peripheral", "host", "otg";
+};
+
+&elm {
+	status = "okay";
+};
+
+&uart0 {
+	status = "okay";
+};
+
+&tscadc {
+	status = "okay";
+	tsc {
+		ti,wires = <4>;
+		ti,x-plate-resistance = <200>;
+		ti,coordiante-readouts = <5>;
+		ti,wire-config = <0x00 0x11 0x22 0x33>;
+	};
+
+	adc {
+		ti,adc-channels = <4 5 6 7>;
+	};
+};
+
+&cpu {
+	cpu0-supply = <&dcdc2>;
+	operating-points = <1000000 1330000>,
+			   <800000 1260000>,
+			   <720000 1200000>,
+			   <600000 1100000>,
+			   <300000 950000>;
+};
diff --git a/configs/cm_t43_defconfig b/configs/cm_t43_defconfig
index 214a054ac4..dbc0f7eaff 100644
--- a/configs/cm_t43_defconfig
+++ b/configs/cm_t43_defconfig
@@ -32,6 +32,8 @@ CONFIG_SPL_POWER_SUPPORT=y
 CONFIG_SPL_SPI_LOAD=y
 CONFIG_SYS_SPI_U_BOOT_OFFS=0x40000
 CONFIG_SYS_PROMPT="CM-T43 # "
+CONFIG_OF_CONTROL=y
+CONFIG_DEFAULT_DEVICE_TREE="am437x-cm-t43"
 CONFIG_CMD_ASKENV=y
 CONFIG_CMD_EEPROM=y
 CONFIG_CMD_EEPROM_LAYOUT=y