Subject: [PATCH 1/2] ARM: dts: Add support for phyCORE-AM335x SoM

From: [email-masked] (Matt Porter)
Date: Mon, 27 Jul 2015 10:34:44 -0400

On Thu, Jul 16, 2015 at 10:30:48AM +0200, Teresa Remmet wrote:
> phyCORE-AM335x is a SoM (System on Module) containing
> a AM335x SOC. The module can be connected to different
> carrier boards.
> 
> Some hardware parts are configurable on the phyCORE-AM335x.
> So they are disabled on default in this som dtsi file.
> They will be enabled in the board dts files, when populated.
> 
> * RAM up to 1GiB
> * PMIC
> * NAND flash up to 1GiB
> * Eth PHY on SOM: 1x RMII
> * SPI NOR flash 8MiB (optional)
> * i2c RTC (optional)
> * i2c EEPROM 4kiB (optional)
> 
> Signed-off-by: Teresa Remmet <[email-masked]>
> ---
>  arch/arm/boot/dts/am335x-phycore-som.dtsi | 368 ++++++++++++++++++++++++++++++
>  1 file changed, 368 insertions(+)
>  create mode 100644 arch/arm/boot/dts/am335x-phycore-som.dtsi
> 
> diff --git a/arch/arm/boot/dts/am335x-phycore-som.dtsi b/arch/arm/boot/dts/am335x-phycore-som.dtsi
> new file mode 100644
> index 0000000..4d28fc3
> --- /dev/null
> +++ b/arch/arm/boot/dts/am335x-phycore-som.dtsi
> @@ -0,0 +1,368 @@
> +/*
> + * Copyright (C) 2015 Phytec Messtechnik GmbH
> + * Author: Teresa Remmet <[email-masked]>
> + *
> + * 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"
> +
> +/ {
> +	model = "Phytec AM335x phyCORE";
> +	compatible = "phytec,am335x-phycore-som", "ti,am33xx";

One minor thing here...wildcards in compatible strings aren't permitted.
However, family compatibles like "ti,am33xx" that came in before this
was enforced are grandfathered. Ideally, the newly introced board/som
specific strings should not propagate that wildcard. i.e. something
like "phytec,am3352-phycore-som" or whatever is the base family part
on these SOMs.

-Matt

> +
> +	aliases {
> +		rtc0 = &i2c_rtc;
> +		rtc1 = &rtc;
> +	};
> +
> +	cpus {
> +		cpu at 0 {
> +			cpu0-supply = <&vdd1_reg>;
> +		};
> +	};
> +
> +	memory {
> +		device_type = "memory";
> +		reg = <0x80000000 0x10000000>; /* 256 MB */
> +	};
> +
> +	vbat: fixedregulator at 0 {
> +		compatible = "regulator-fixed";
> +	};
> +};
> +
> +/* Crypto Module */
> +&aes {
> +	status = "okay";
> +};
> +
> +&sham {
> +	status = "okay";
> +};
> +
> +/* Ethernet */
> +&am33xx_pinmux {
> +	ethernet0_pins: pinmux_ethernet0 {
> +		pinctrl-single,pins = <
> +			0x10c (PIN_INPUT_PULLDOWN | MUX_MODE1)	/* mii1_crs.rmii1_crs_dv */
> +			0x110 (PIN_INPUT_PULLDOWN | MUX_MODE1)	/* mii1_rxerr.rmii1_rxerr */
> +			0x114 (PIN_OUTPUT | MUX_MODE1)		/* mii1_txen.rmii1_txen */
> +			0x124 (PIN_OUTPUT | MUX_MODE1)		/* mii1_txd1.rmii1_txd1 */
> +			0x128 (PIN_OUTPUT | MUX_MODE1)		/* mii1_txd0.rmii1_txd0 */
> +			0x13c (PIN_INPUT_PULLDOWN | MUX_MODE1)	/* mii1_rxd1.rmii1_rxd1 */
> +			0x140 (PIN_INPUT_PULLDOWN | MUX_MODE1)	/* mii1_rxd0.rmii1_rxd0 */
> +			0x144 (PIN_INPUT_PULLDOWN | MUX_MODE0)	/* rmii1_refclk.rmii1_refclk */
> +		>;
> +	};
> +
> +	mdio_pins: pinmux_mdio {
> +		pinctrl-single,pins = <
> +			/* MDIO */
> +			0x148 (PIN_INPUT_PULLUP | SLEWCTRL_FAST | MUX_MODE0)	/* mdio_data.mdio_data */
> +			0x14c (PIN_OUTPUT_PULLUP | MUX_MODE0)			/* mdio_clk.mdio_clk */
> +		>;
> +	};
> +};
> +
> +&cpsw_emac0 {
> +	phy_id = <&davinci_mdio>, <0>;
> +	phy-mode = "rmii";
> +	dual_emac_res_vlan = <1>;
> +};
> +
> +&davinci_mdio {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&mdio_pins>;
> +	status = "okay";
> +};
> +
> +&mac {
> +	slaves = <1>;
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&ethernet0_pins>;
> +	status = "okay";
> +};
> +
> +&phy_sel {
> +	rmii-clock-ext;
> +};
> +
> +/* I2C Busses */
> +&am33xx_pinmux {
> +	i2c0_pins: pinmux_i2c0 {
> +		pinctrl-single,pins = <
> +			0x188 (PIN_INPUT | MUX_MODE0)	/* i2c0_sda.i2c0_sda */
> +			0x18c (PIN_INPUT | MUX_MODE0)	/* i2c0_scl.i2c0_scl */
> +		>;
> +	};
> +};
> +
> +&i2c0 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&i2c0_pins>;
> +	clock-frequency = <400000>;
> +	status = "okay";
> +
> +	tps: pmic at 2d {
> +		reg = <0x2d>;
> +	};
> +
> +	i2c_eeprom: eeprom at 52 {
> +		compatible = "atmel,24c32";
> +		pagesize = <32>;
> +		reg = <0x52>;
> +		status = "disabled";
> +	};
> +
> +	i2c_rtc: rtc at 68 {
> +		compatible = "rv4162";
> +		reg = <0x68>;
> +		status = "disabled";
> +	};
> +};
> +
> +/* NAND memory */
> +&am33xx_pinmux {
> +		nandflash_pins: pinmux_nandflash {
> +			pinctrl-single,pins = <
> +			0x0 (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_ad0.gpmc_ad0 */
> +			0x4 (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_ad1.gpmc_ad1 */
> +			0x8 (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_ad2.gpmc_ad2 */
> +			0xc (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_ad3.gpmc_ad3 */
> +			0x10 (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_ad4.gpmc_ad4 */
> +			0x14 (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_ad5.gpmc_ad5 */
> +			0x18 (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_ad6.gpmc_ad6 */
> +			0x1c (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_ad7.gpmc_ad7 */
> +			0x70 (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_wait0.gpmc_wait0 */
> +			0x7c (PIN_OUTPUT | MUX_MODE0)		/* gpmc_csn0.gpmc_csn0 */
> +			0x90 (PIN_OUTPUT | MUX_MODE0)		/* gpmc_advn_ale.gpmc_advn_ale */
> +			0x94 (PIN_OUTPUT | MUX_MODE0)		/* gpmc_oen_ren.gpmc_oen_ren */
> +			0x98 (PIN_OUTPUT | MUX_MODE0)		/* gpmc_wen.gpmc_wen */
> +			0x9c (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 at 0,0 {
> +		reg = <0 0 4>; /* CS0, offset 0, IO size 4 */
> +		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,wait-on-read = "true";
> +		gpmc,wait-on-write = "true";
> +		gpmc,bus-turnaround-ns = <0>;
> +		gpmc,cycle2cycle-delay-ns = <50>;
> +		gpmc,cycle2cycle-diffcsen;
> +		gpmc,clk-activation-ns = <0>;
> +		gpmc,wait-monitoring-ns = <0>;
> +		gpmc,wr-access-ns = <30>;
> +		gpmc,wr-data-mux-bus-ns = <0>;
> +
> +		elm_id = <&elm>;
> +
> +		#address-cells = <1>;
> +		#size-cells = <1>;
> +
> +		partition at 0 {
> +			label = "xload";
> +			reg = <0x0 0x20000>;
> +		};
> +		partition at 1 {
> +			label = "xload_backup1";
> +			reg = <0x20000 0x20000>;
> +		};
> +		partition at 2 {
> +			label = "xload_backup2";
> +			reg = <0x40000 0x20000>;
> +		};
> +		partition at 3 {
> +			label = "xload_backup3";
> +			reg = <0x60000 0x20000>;
> +		};
> +		partition at 4 {
> +			label = "barebox";
> +			reg = <0x80000 0x80000>;
> +		};
> +		partition at 5 {
> +			label = "bareboxenv";
> +			reg = <0x100000 0x40000>;
> +		};
> +		partition at 6 {
> +			label = "oftree";
> +			reg = <0x140000 0x40000>;
> +		};
> +		partition at 7 {
> +			label = "kernel";
> +			reg = <0x180000 0x800000>;
> +		};
> +		partition at 8 {
> +			label = "root";
> +			reg = <0x980000 0x0>;
> +		};
> +	};
> +};
> +
> +/* Power */
> +#include "tps65910.dtsi"
> +
> +&tps {
> +	vcc1-supply = <&vbat>;
> +	vcc2-supply = <&vbat>;
> +	vcc3-supply = <&vbat>;
> +	vcc4-supply = <&vbat>;
> +	vcc5-supply = <&vbat>;
> +	vcc6-supply = <&vbat>;
> +	vcc7-supply = <&vbat>;
> +	vccio-supply = <&vbat>;
> +
> +	regulators {
> +		vrtc_reg: regulator at 0 {
> +			regulator-always-on;
> +		};
> +
> +		vio_reg: regulator at 1 {
> +			regulator-always-on;
> +		};
> +
> +		vdd1_reg: regulator at 2 {
> +			/* VDD_MPU voltage limits 0.95V - 1.26V with +/-4% tolerance */
> +			regulator-name = "vdd_mpu";
> +			regulator-min-microvolt = <912500>;
> +			regulator-max-microvolt = <1312500>;
> +			regulator-boot-on;
> +			regulator-always-on;
> +		};
> +
> +		vdd2_reg: regulator at 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 at 4 {
> +			regulator-always-on;
> +		};
> +
> +		vdig1_reg: regulator at 5 {
> +			regulator-name = "vdig1_1p8v";
> +			regulator-min-microvolt = <1800000>;
> +			regulator-max-microvolt = <1800000>;
> +		};
> +
> +		vdig2_reg: regulator at 6 {
> +			regulator-always-on;
> +		};
> +
> +		vpll_reg: regulator at 7 {
> +			regulator-always-on;
> +		};
> +
> +		vdac_reg: regulator at 8 {
> +			regulator-always-on;
> +		};
> +
> +		vaux1_reg: regulator at 9 {
> +			regulator-always-on;
> +		};
> +
> +		vaux2_reg: regulator at 10 {
> +			regulator-always-on;
> +		};
> +
> +		vaux33_reg: regulator at 11 {
> +			regulator-always-on;
> +		};
> +
> +		vmmc_reg: regulator at 12 {
> +			regulator-min-microvolt = <3300000>;
> +			regulator-max-microvolt = <3300000>;
> +			regulator-always-on;
> +		};
> +	};
> +};
> +
> +&vbat {
> +	regulator-name = "vbat";
> +	regulator-min-microvolt = <5000000>;
> +	regulator-max-microvolt = <5000000>;
> +	regulator-boot-on;
> +};
> +
> +/* SPI Busses */
> +&am33xx_pinmux {
> +	spi0_pins: pinmux_spi0 {
> +		pinctrl-single,pins = <
> +			0x150 (PIN_INPUT_PULLDOWN | MUX_MODE0)	/* spi0_clk.spi0_clk */
> +			0x154 (PIN_INPUT_PULLDOWN | MUX_MODE0)	/* spi0_d0.spi0_d0 */
> +			0x158 (PIN_INPUT_PULLUP | MUX_MODE0)	/* spi0_d1.spi0_d1 */
> +			0x15c (PIN_INPUT_PULLUP | MUX_MODE0)	/* spi0_cs0.spi0_cs0 */
> +		>;
> +	};
> +};
> +
> +&spi0 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&spi0_pins>;
> +	status = "okay";
> +
> +	serial_flash: m25p80 at 0 {
> +		compatible = "m25p80";
> +		spi-max-frequency = <48000000>;
> +		reg = <0x0>;
> +		m25p,fast-read;
> +		status = "disabled";
> +		#address-cells = <1>;
> +		#size-cells = <1>;
> +
> +		partition at 0 {
> +			label = "xload";
> +			reg = <0x0 0x20000>;
> +		};
> +		partition at 1 {
> +			label = "barebox";
> +			reg = <0x20000 0x80000>;
> +		};
> +		partition at 2 {
> +			label = "bareboxenv";
> +			reg = <0xa0000 0x20000>;
> +		};
> +		partition at 3 {
> +			label = "oftree";
> +			reg = <0xc0000 0x20000>;
> +		};
> +		partition at 4 {
> +			label = "kernel";
> +			reg = <0xe0000 0x0>;
> +		};
> +	};
> +};
> -- 
> 1.9.1
> 
> 
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