u-boot/arch/arm/dts/mt8512-bm1-emmc.dts
mingming lee b9bf3cbfd6 ARM: MediaTek: add basic support for MT8512 boards
This adds a general board file based on MT8512 SoCs from MediaTek.

Apart from the generic parts (cpu) we add some low level init codes
and initialize the early clocks.

This commit is adding the basic boot support for the MT8512 eMMC board.

Signed-off-by: mingming lee <mingming.lee@mediatek.com>
2020-01-16 09:39:45 -05:00

106 lines
1.8 KiB
Text

// SPDX-License-Identifier: (GPL-2.0 OR MIT)
/*
* Copyright (C) 2019 MediaTek Inc.
* Author: Mingming Lee <mingming.lee@mediatek.com>
*
*/
/dts-v1/;
#include <config.h>
#include "mt8512.dtsi"
/ {
#address-cells = <1>;
#size-cells = <1>;
model = "MT8512 BM1 EMMC";
chosen {
stdout-path = &uart0;
tick-timer = &timer0;
};
memory@40000000 {
device_type = "memory";
reg = <0x40000000 0x20000000>;
};
reg_1p8v: regulator-1p8v {
compatible = "regulator-fixed";
regulator-name = "fixed-1.8V";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-boot-on;
regulator-always-on;
};
reg_3p3v: regulator-3p3v {
compatible = "regulator-fixed";
regulator-name = "fixed-3.3V";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
regulator-boot-on;
regulator-always-on;
};
};
&mmc0 {
pinctrl-names = "default";
pinctrl-0 = <&mmc0_pins_default>;
bus-width = <8>;
max-frequency = <200000000>;
cap-mmc-highspeed;
mmc-hs200-1_8v;
cap-mmc-hw-reset;
vmmc-supply = <&reg_3p3v>;
vqmmc-supply = <&reg_1p8v>;
non-removable;
status = "okay";
};
&pinctrl {
mmc0_pins_default: mmc0default {
mux {
function = "msdc";
groups = "msdc0";
};
conf-cmd-data {
pins = "MSDC0_CMD", "MSDC0_DAT0", "MSDC0_DAT1",
"MSDC0_DAT2", "MSDC0_DAT3", "MSDC0_DAT4",
"MSDC0_DAT5", "MSDC0_DAT6", "MSDC0_DAT7";
input-enable;
drive-strength = <6>;
bias-pull-up;
};
conf-clk {
pins = "MSDC0_CLK";
drive-strength = <6>;
bias-pull-down;
};
conf-rst {
pins = "MSDC0_RSTB";
bias-pull-up;
};
};
uart0_pins: uart0 {
mux {
function = "uart";
groups = "uart0_0_rxd_txd";
};
};
};
&uart0 {
pinctrl-names = "default";
pinctrl-0 = <&uart0_pins>;
status = "okay";
};
&watchdog0 {
status = "okay";
};