ARM: am335x: Add phyCORE AM335x R2 support

Support for Phytech phyCORE AM335x R2 SOM (PCL060) on the Phytec
phyBOARD-Wega AM335x.

CPU  : AM335X-GP rev 2.1
Model: Phytec AM335x phyBOARD-WEGA
DRAM:  256 MiB
NAND:  256 MiB
MMC:   OMAP SD/MMC: 0
eth0: ethernet@4a100000

Working:
 - Eth0
 - i2C
 - MMC/SD
 - NAND
 - UART
 - USB (host)

Device trees were taken from Linux mainline:
commit 37624b58542f ("Linux 5.1-rc7")

Signed-off-by: Niel Fourie <lusus@denx.de>
Signed-off-by: Parthiban Nallathambi <pn@denx.de>
Reviewed-by: Heiko Schocher <hs@denx.de>
Reviewed-by: Tom Rini <trini@konsulko.com>
Tested-by: Marek Vasut <marex@denx.de>

1 files changed, 322 insertions, 0 deletions

diff --git a/arch/arm/dts/am335x-phycore-som.dtsi b/arch/arm/dts/am335x-phycore-som.dtsi
new file mode 100644
index 0000000000..8d7c19e5e1
--- /dev/null
+++ b/arch/arm/dts/am335x-phycore-som.dtsi
@@ -0,0 +1,322 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2015 Phytec Messtechnik GmbH
+ * Author: Teresa Remmet <t.remmet@phytec.de>
+ *
+ * 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.
+ */
+
+#include "am33xx.dtsi"
+#include <dt-bindings/interrupt-controller/irq.h>
+
+/ {
+	model = "Phytec AM335x phyCORE";
+	compatible = "phytec,am335x-phycore-som", "ti,am33xx";
+
+	aliases {
+		rtc0 = &i2c_rtc;
+		rtc1 = &rtc;
+	};
+
+	cpus {
+		cpu@0 {
+			cpu0-supply = <&vdd1_reg>;
+		};
+	};
+
+	memory@80000000 {
+		device_type = "memory";
+		reg = <0x80000000 0x10000000>; /* 256 MB */
+	};
+
+	regulators {
+		compatible = "simple-bus";
+
+		vcc5v: fixedregulator0 {
+			compatible = "regulator-fixed";
+			regulator-name = "vcc5v";
+			regulator-min-microvolt = <5000000>;
+			regulator-max-microvolt = <5000000>;
+			regulator-boot-on;
+			regulator-always-on;
+		};
+	};
+};
+
+/* Crypto Module */
+&aes {
+	status = "okay";
+};
+
+&sham {
+	status = "okay";
+};
+
+/* Ethernet */
+&am33xx_pinmux {
+	ethernet0_pins: pinmux_ethernet0 {
+		pinctrl-single,pins = <
+			AM33XX_IOPAD(0x90c, PIN_INPUT_PULLDOWN | MUX_MODE1)	/* mii1_crs.rmii1_crs_dv */
+			AM33XX_IOPAD(0x910, PIN_INPUT_PULLDOWN | MUX_MODE1)	/* mii1_rxerr.rmii1_rxerr */
+			AM33XX_IOPAD(0x914, PIN_OUTPUT | MUX_MODE1)		/* mii1_txen.rmii1_txen */
+			AM33XX_IOPAD(0x924, PIN_OUTPUT | MUX_MODE1)		/* mii1_txd1.rmii1_txd1 */
+			AM33XX_IOPAD(0x928, PIN_OUTPUT | MUX_MODE1)		/* mii1_txd0.rmii1_txd0 */
+			AM33XX_IOPAD(0x93c, PIN_INPUT_PULLDOWN | MUX_MODE1)	/* mii1_rxd1.rmii1_rxd1 */
+			AM33XX_IOPAD(0x940, PIN_INPUT_PULLDOWN | MUX_MODE1)	/* mii1_rxd0.rmii1_rxd0 */
+			AM33XX_IOPAD(0x944, PIN_INPUT_PULLDOWN | MUX_MODE0)	/* rmii1_refclk.rmii1_refclk */
+		>;
+	};
+
+	mdio_pins: pinmux_mdio {
+		pinctrl-single,pins = <
+			/* MDIO */
+			AM33XX_IOPAD(0x948, PIN_INPUT_PULLUP | SLEWCTRL_FAST | MUX_MODE0)	/* mdio_data.mdio_data */
+			AM33XX_IOPAD(0x94c, PIN_OUTPUT_PULLUP | MUX_MODE0)			/* mdio_clk.mdio_clk */
+		>;
+	};
+};
+
+&cpsw_emac0 {
+	phy-handle = <&phy0>;
+	phy-mode = "rmii";
+	dual_emac_res_vlan = <1>;
+};
+
+&davinci_mdio {
+	pinctrl-names = "default";
+	pinctrl-0 = <&mdio_pins>;
+	status = "okay";
+
+	phy0: ethernet-phy@0 {
+		reg = <0>;
+	};
+};
+
+&mac {
+	slaves = <1>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&ethernet0_pins>;
+	status = "okay";
+};
+
+/* I2C Busses */
+&am33xx_pinmux {
+	i2c0_pins: pinmux_i2c0 {
+		pinctrl-single,pins = <
+			AM33XX_IOPAD(0x988, PIN_INPUT | MUX_MODE0)	/* i2c0_sda.i2c0_sda */
+			AM33XX_IOPAD(0x98c, PIN_INPUT | MUX_MODE0)	/* i2c0_scl.i2c0_scl */
+		>;
+	};
+};
+
+&i2c0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c0_pins>;
+	clock-frequency = <400000>;
+	status = "okay";
+
+	tps: pmic@2d {
+		reg = <0x2d>;
+	};
+
+	i2c_tmp102: temp@4b {
+		compatible = "ti,tmp102";
+		reg = <0x4b>;
+		status = "disabled";
+	};
+
+	i2c_eeprom: eeprom@52 {
+		compatible = "atmel,24c32";
+		pagesize = <32>;
+		reg = <0x52>;
+		status = "disabled";
+	};
+
+	i2c_rtc: rtc@68 {
+		compatible = "microcrystal,rv4162";
+		reg = <0x68>;
+		status = "disabled";
+	};
+};
+
+/* NAND memory */
+&am33xx_pinmux {
+		nandflash_pins: pinmux_nandflash {
+			pinctrl-single,pins = <
+			AM33XX_IOPAD(0x800, PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_ad0.gpmc_ad0 */
+			AM33XX_IOPAD(0x804, PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_ad1.gpmc_ad1 */
+			AM33XX_IOPAD(0x808, PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_ad2.gpmc_ad2 */
+			AM33XX_IOPAD(0x80c, PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_ad3.gpmc_ad3 */
+			AM33XX_IOPAD(0x810, PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_ad4.gpmc_ad4 */
+			AM33XX_IOPAD(0x814, PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_ad5.gpmc_ad5 */
+			AM33XX_IOPAD(0x818, PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_ad6.gpmc_ad6 */
+			AM33XX_IOPAD(0x81c, PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_ad7.gpmc_ad7 */
+			AM33XX_IOPAD(0x870, PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_wait0.gpmc_wait0 */
+			AM33XX_IOPAD(0x87c, PIN_OUTPUT | MUX_MODE0)		/* gpmc_csn0.gpmc_csn0 */
+			AM33XX_IOPAD(0x890, PIN_OUTPUT | MUX_MODE0)		/* gpmc_advn_ale.gpmc_advn_ale */
+			AM33XX_IOPAD(0x894, PIN_OUTPUT | MUX_MODE0)		/* gpmc_oen_ren.gpmc_oen_ren */
+			AM33XX_IOPAD(0x898, PIN_OUTPUT | MUX_MODE0)		/* gpmc_wen.gpmc_wen */
+			AM33XX_IOPAD(0x89c, PIN_OUTPUT | MUX_MODE0)		/* gpmc_be0n_cle.gpmc_be0n_cle */
+		>;
+	};
+};
+
+&elm {
+	status = "okay";
+};
+
+&gpmc {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&nandflash_pins>;
+	ranges = <0 0 0x08000000 0x1000000>;   /* CS0: NAND */
+	nandflash: 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 */
+		rb-gpios = <&gpmc 0 GPIO_ACTIVE_HIGH>; /* gpmc_wait0 */
+		nand-bus-width = <8>;
+		ti,nand-ecc-opt = "bch8";
+		gpmc,device-nand = "true";
+		gpmc,device-width = <1>;
+		gpmc,sync-clk-ps = <0>;
+		gpmc,cs-on-ns = <0>;
+		gpmc,cs-rd-off-ns = <30>;
+		gpmc,cs-wr-off-ns = <30>;
+		gpmc,adv-on-ns = <0>;
+		gpmc,adv-rd-off-ns = <30>;
+		gpmc,adv-wr-off-ns = <30>;
+		gpmc,we-on-ns = <0>;
+		gpmc,we-off-ns = <20>;
+		gpmc,oe-on-ns = <10>;
+		gpmc,oe-off-ns = <30>;
+		gpmc,access-ns = <30>;
+		gpmc,rd-cycle-ns = <30>;
+		gpmc,wr-cycle-ns = <30>;
+		gpmc,bus-turnaround-ns = <0>;
+		gpmc,cycle2cycle-delay-ns = <50>;
+		gpmc,cycle2cycle-diffcsen;
+		gpmc,clk-activation-ns = <0>;
+		gpmc,wr-access-ns = <30>;
+		gpmc,wr-data-mux-bus-ns = <0>;
+
+		ti,elm-id = <&elm>;
+
+		#address-cells = <1>;
+		#size-cells = <1>;
+	};
+};
+
+/* Power */
+#include "tps65910.dtsi"
+
+&tps {
+	vcc1-supply = <&vcc5v>;
+	vcc2-supply = <&vcc5v>;
+	vcc3-supply = <&vcc5v>;
+	vcc4-supply = <&vcc5v>;
+	vcc5-supply = <&vcc5v>;
+	vcc6-supply = <&vcc5v>;
+	vcc7-supply = <&vcc5v>;
+	vccio-supply = <&vcc5v>;
+
+	regulators {
+		vrtc_reg: regulator@0 {
+			regulator-always-on;
+		};
+
+		vio_reg: regulator@1 {
+			regulator-always-on;
+		};
+
+		vdd1_reg: regulator@2 {
+			/* VDD_MPU voltage limits 0.95V - 1.325V with +/-4% tolerance */
+			regulator-name = "vdd_mpu";
+			regulator-min-microvolt = <912500>;
+			regulator-max-microvolt = <1378000>;
+			regulator-boot-on;
+			regulator-always-on;
+		};
+
+		vdd2_reg: regulator@3 {
+			/* VDD_CORE voltage limits 0.95V - 1.1V with +/-4% tolerance */
+			regulator-name = "vdd_core";
+			regulator-min-microvolt = <912500>;
+			regulator-max-microvolt = <1150000>;
+			regulator-boot-on;
+			regulator-always-on;
+		};
+
+		vdd3_reg: regulator@4 {
+			regulator-always-on;
+		};
+
+		vdig1_reg: regulator@5 {
+			regulator-name = "vdig1_1p8v";
+			regulator-min-microvolt = <1800000>;
+			regulator-max-microvolt = <1800000>;
+		};
+
+		vdig2_reg: regulator@6 {
+			regulator-always-on;
+		};
+
+		vpll_reg: regulator@7 {
+			regulator-always-on;
+		};
+
+		vdac_reg: regulator@8 {
+			regulator-always-on;
+		};
+
+		vaux1_reg: regulator@9 {
+			regulator-always-on;
+		};
+
+		vaux2_reg: regulator@10 {
+			regulator-always-on;
+		};
+
+		vaux33_reg: regulator@11 {
+			regulator-always-on;
+		};
+
+		vmmc_reg: regulator@12 {
+			regulator-min-microvolt = <3300000>;
+			regulator-max-microvolt = <3300000>;
+			regulator-always-on;
+		};
+	};
+};
+
+/* SPI Busses */
+&am33xx_pinmux {
+	spi0_pins: pinmux_spi0 {
+		pinctrl-single,pins = <
+			AM33XX_IOPAD(0x950, PIN_INPUT_PULLDOWN | MUX_MODE0)	/* spi0_clk.spi0_clk */
+			AM33XX_IOPAD(0x954, PIN_INPUT_PULLDOWN | MUX_MODE0)	/* spi0_d0.spi0_d0 */
+			AM33XX_IOPAD(0x958, PIN_INPUT_PULLUP | MUX_MODE0)	/* spi0_d1.spi0_d1 */
+			AM33XX_IOPAD(0x95c, PIN_INPUT_PULLUP | MUX_MODE0)	/* spi0_cs0.spi0_cs0 */
+		>;
+	};
+};
+
+&spi0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&spi0_pins>;
+	status = "okay";
+
+	serial_flash: m25p80@0 {
+		compatible = "jedec,spi-nor";
+		spi-max-frequency = <48000000>;
+		reg = <0x0>;
+		m25p,fast-read;
+		status = "disabled";
+		#address-cells = <1>;
+		#size-cells = <1>;
+	};
+};