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https://github.com/brain-hackers/u-boot-brain
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997b857ae3
Olimex A64-Teres-I board is a mainboard (the only one so far) for Olimex Teres-I DIY laptop kit. Key features: - Allwinner A64 Cortex-A53 - Mali-400MP2 GPU - AXP803 PMIC - 2GB DDR3 RAM - MicroSD Slot - 16GB eMMC Flash - eDP LCD display - HDMI - USB Host - Battery management - 5V DC power supply - Certified Open Source Hardware (OSHW) Works: - i2C - MMC/SD - PWM backlight Known broken: - Internal keyboard (seems to be because the keyboard firmware loads a bootloader first, and then disconnects bootloader and connect real keyboard). External ones connected to the USB port work fine. This patch enables support for the A64-Teres-I board to u-boot, including enabling screen backlight (lacking from Linux device-tree). Linux commit details about the sun50i-a64-teres-i.dts sync: "arm64: dts: allwinner: a64: Rename uart0_pins_a label to uart0_pb_pins" (sha1: d91ebb95b96c8840932dc3a10c9f243712555467) Cosmetic warnings regarding whitespace and placement of SPDX notice for dts file was ignored. config and .dtsi file are adapted from pinebook files. Tested-by: Jonas Smedegaard <dr@jones.dk> Signed-off-by: Jonas Smedegaard <dr@jones.dk> Signed-off-by: Icenowy Zheng <icenowy@aosc.io> Reviewed-by: Jagan Teki <jagan@amarulasolutions.com> [jagan: move board entry in MAINTAINERS file at proper position] Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
42 lines
894 B
Plaintext
42 lines
894 B
Plaintext
// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
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/*
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* Copyright (C) 2019 Vasily Khoruzhick <anarsoul@gmail.com>
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*
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*/
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#include "sunxi-u-boot.dtsi"
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/ {
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vdd_bl: regulator@0 {
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compatible = "regulator-fixed";
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regulator-name = "bl-3v3";
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regulator-min-microvolt = <3300000>;
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regulator-max-microvolt = <3300000>;
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gpio = <&pio 7 6 GPIO_ACTIVE_HIGH>; /* PH6 */
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enable-active-high;
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};
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backlight: backlight {
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compatible = "pwm-backlight";
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pwms = <&pwm 0 50000 0>;
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brightness-levels = <0 5 10 15 20 30 40 55 70 85 100>;
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default-brightness-level = <2>;
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enable-gpios = <&pio 3 23 GPIO_ACTIVE_HIGH>; /* PD23 */
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power-supply = <&vdd_bl>;
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};
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};
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/* The ANX6345 eDP-bridge is on i2c */
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&i2c0 {
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anx6345: edp-bridge@38 {
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compatible = "analogix,anx6345";
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reg = <0x38>;
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reset-gpios = <&pio 3 24 GPIO_ACTIVE_LOW>; /* PD24 */
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status = "okay";
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};
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};
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&pwm {
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status = "okay";
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};
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