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https://github.com/ARM-software/arm-trusted-firmware.git
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2fbb60642f
The Linux Automation MC-1 is a SBC built around the Octavo Systems OSD32MP15x SiP. The SiP features up to 1 GB DDR3 RAM, EEPROM and PMIC. The board has eMMC and a SD slot for storage. The SDRAM calibration values are taken as is from the DKx boards, which seem to be suitable for operation at German room temperature. This is deemed ok for now, but for use in the field, the SiP will likely need to have its timings determined in a climate chamber. Change-Id: I5f43a61930151ae9d1df2ea7d0f6f9697c813ce0 Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
107 lines
2.1 KiB
Text
107 lines
2.1 KiB
Text
/* SPDX-License-Identifier: (GPL-2.0-or-later OR BSD-3-Clause) */
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/*
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* Copyright (C) 2020 STMicroelectronics - All Rights Reserved
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* Copyright (C) 2020 Ahmad Fatoum, Pengutronix
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*/
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/dts-v1/;
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#include "stm32mp157.dtsi"
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#include "stm32mp15xc.dtsi"
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#include "stm32mp15-ddr3-1x4Gb-1066-binG.dtsi"
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#include "stm32mp15xx-osd32.dtsi"
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#include "stm32mp15xxac-pinctrl.dtsi"
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/ {
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model = "Linux Automation MC-1 board";
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compatible = "lxa,stm32mp157c-mc1", "oct,stm32mp15xx-osd32", "st,stm32mp157";
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aliases {
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mmc0 = &sdmmc1;
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mmc1 = &sdmmc2;
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serial0 = &uart4;
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};
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chosen {
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stdout-path = &uart4;
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};
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led-act {
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compatible = "gpio-leds";
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led-green {
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label = "mc1:green:act";
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gpios = <&gpioa 13 1>;
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linux,default-trigger = "heartbeat";
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};
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};
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reg_3v3: regulator_3v3 {
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compatible = "regulator-fixed";
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regulator-name = "3V3";
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regulator-min-microvolt = <3300000>;
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regulator-max-microvolt = <3300000>;
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regulator-always-on;
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vin-supply = <&v3v3>;
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};
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};
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&sdmmc1 {
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pinctrl-names = "default";
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pinctrl-0 = <&sdmmc1_b4_pins_a>;
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bus-width = <4>;
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cd-gpios = <&gpioh 3 1>;
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disable-wp;
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no-1-8-v;
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st,neg-edge;
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vmmc-supply = <®_3v3>;
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status = "okay";
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};
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&sdmmc1_b4_pins_a {
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/*
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* board lacks external pull-ups on SDMMC lines. Class 10 SD refuses to
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* work, thus enable internal pull-ups.
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*/
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pins1 {
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/delete-property/ bias-disable;
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bias-pull-up;
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};
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pins2 {
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/delete-property/ bias-disable;
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bias-pull-up;
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};
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};
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&sdmmc2 {
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pinctrl-names = "default";
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pinctrl-0 = <&sdmmc2_b4_pins_a &mc1_sdmmc2_d47_pins_b>;
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bus-width = <8>;
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no-1-8-v;
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no-sd;
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no-sdio;
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non-removable;
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st,neg-edge;
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vmmc-supply = <®_3v3>;
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status = "okay";
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};
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&uart4 {
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pinctrl-names = "default";
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pinctrl-0 = <&uart4_pins_a>;
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status = "okay";
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};
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&pinctrl {
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mc1_sdmmc2_d47_pins_b: mc1-sdmmc2-d47-1 {
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pins {
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pinmux = <STM32_PINMUX('A', 8, AF9)>, /* SDMMC2_D4 */
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<STM32_PINMUX('A', 9, AF10)>, /* SDMMC2_D5 */
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<STM32_PINMUX('C', 6, AF10)>, /* SDMMC2_D6 */
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<STM32_PINMUX('C', 7, AF10)>; /* SDMMC2_D7 */
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slew-rate = <1>;
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drive-push-pull;
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bias-disable;
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};
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};
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};
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