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

From: Matt Porter
Date: Mon Jul 27 2015 - 10:34:56 EST

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 <t.remmet@xxxxxxxxx>
> ---
> 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 <t.remmet@xxxxxxxxx>
> + *
> + * 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@0 {
> + cpu0-supply = <&vdd1_reg>;
> + };
> + };
> +
> + memory {
> + device_type = "memory";
> + reg = <0x80000000 0x10000000>; /* 256 MB */
> + };
> +
> + vbat: fixedregulator@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@2d {
> + reg = <0x2d>;
> + };
> +
> + i2c_eeprom: eeprom@52 {
> + compatible = "atmel,24c32";
> + pagesize = <32>;
> + reg = <0x52>;
> + status = "disabled";
> + };
> +
> + i2c_rtc: rtc@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@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@0 {
> + label = "xload";
> + reg = <0x0 0x20000>;
> + };
> + partition@1 {
> + label = "xload_backup1";
> + reg = <0x20000 0x20000>;
> + };
> + partition@2 {
> + label = "xload_backup2";
> + reg = <0x40000 0x20000>;
> + };
> + partition@3 {
> + label = "xload_backup3";
> + reg = <0x60000 0x20000>;
> + };
> + partition@4 {
> + label = "barebox";
> + reg = <0x80000 0x80000>;
> + };
> + partition@5 {
> + label = "bareboxenv";
> + reg = <0x100000 0x40000>;
> + };
> + partition@6 {
> + label = "oftree";
> + reg = <0x140000 0x40000>;
> + };
> + partition@7 {
> + label = "kernel";
> + reg = <0x180000 0x800000>;
> + };
> + partition@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@0 {
> + regulator-always-on;
> + };
> +
> + vio_reg: regulator@1 {
> + regulator-always-on;
> + };
> +
> + vdd1_reg: regulator@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@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;
> + };
> + };
> +};
> +
> +&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@0 {
> + compatible = "m25p80";
> + spi-max-frequency = <48000000>;
> + reg = <0x0>;
> + m25p,fast-read;
> + status = "disabled";
> + #address-cells = <1>;
> + #size-cells = <1>;
> +
> + partition@0 {
> + label = "xload";
> + reg = <0x0 0x20000>;
> + };
> + partition@1 {
> + label = "barebox";
> + reg = <0x20000 0x80000>;
> + };
> + partition@2 {
> + label = "bareboxenv";
> + reg = <0xa0000 0x20000>;
> + };
> + partition@3 {
> + label = "oftree";
> + reg = <0xc0000 0x20000>;
> + };
> + partition@4 {
> + label = "kernel";
> + reg = <0xe0000 0x0>;
> + };
> + };
> +};
> --
> 1.9.1
>
>
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