mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-07-07 03:36:16 +09:00
ccc7595a81
as we switch to support DM and DTS, rework the existing DTS trees. Change also Linux specific Device trees, goal is to push this changes to linux. Collect U-Boot specific changes in separate "*u-boot*" dts files. Signed-off-by: Heiko Schocher <hs@denx.de>
102 lines
1.6 KiB
Plaintext
102 lines
1.6 KiB
Plaintext
// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (C) 2019 Heiko Schocher <hs@denx.de>
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*/
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/ {
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chosen {
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u-boot,dm-pre-reloc;
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stdout-path = &uart2;
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};
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wdt-reboot {
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compatible = "wdt-reboot";
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wdt = <&wdog1>;
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};
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};
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&uart2 {
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u-boot,dm-pre-reloc;
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};
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&pinctrl_gpio {
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u-boot,dm-pre-reloc;
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};
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&pinctrl_uart2 {
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u-boot,dm-pre-reloc;
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};
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&aips2 {
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u-boot,dm-pre-reloc;
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};
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&backlight {
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pwms = <&pwm1 0 300000>;
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default-brightness-level = <2>;
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};
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/*
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* allow switching write protect pin by gpio,
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* because "pinctrl-assert-gpios" from &ecspi1 isn't handled by u-boot
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*/
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&gpio2 {
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u-boot,dm-pre-reloc;
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wp_spi_nor {
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gpio-hog;
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output-high;
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gpios = <15 GPIO_ACTIVE_HIGH>;
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};
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};
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&iomuxc {
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pinctrl-0 = <&pinctrl_gpio &pinctrl_gpio_fix>;
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u-boot,dm-pre-reloc;
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pinctrl_gpio_fix: gpiofixgrp {
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/*
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* usdhc2 has a levelshifter on the carrier board Rev. DV1,
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* that will automatically detect the driving direction.
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* During initialisation this isn't working correctly,
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* which causes DAT3 to be driven low towards the SD-card.
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* This causes a SD-card enetring the SPI-Mode
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* and therefore getting inaccessible until next power cycle.
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* As workaround we drive the DAT3 line as GPIO and set it high.
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* This makes usdhc2 unusable in u-boot, but works for the
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* initialisation in Linux
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*/
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fsl,pins = <
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MX6QDL_PAD_SD2_DAT3__GPIO1_IO12 0x20000
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>;
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};
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};
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&gpio1 {
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usdhc_fix {
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gpio-hog;
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output-high;
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gpios = <12 GPIO_ACTIVE_HIGH>;
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};
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};
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&gpio3 {
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u-boot,dm-pre-reloc;
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};
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&gpio5 {
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u-boot,dm-pre-reloc;
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};
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&ecspi4 {
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u-boot,dm-pre-reloc;
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};
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&flash {
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u-boot,dm-pre-reloc;
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};
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&pinctrl_ecspi4 {
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u-boot,dm-pre-reloc;
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};
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