mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-02 09:30:10 +00:00
4ac026a937
Add PHY's reset GPIO, so that U-Boot does a PHY hard reset. This is needed, since the PHY might become unresponsive if watchdog reboots the system while a transaction is ongoing. The reset GPIO is added to the U-Boot specific DT files, since the kernel does not setup the reserved registers correctly after resetting the PHY and thus must not reset it. Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
49 lines
902 B
Text
49 lines
902 B
Text
// SPDX-License-Identifier: GPL-2.0+ OR X11
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/*
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* Copyright 2019 Collabora Ltd
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* Copyright 2019 General Electric Company
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*/
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/ {
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bootcount {
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compatible = "u-boot,bootcount-i2c-eeprom";
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i2c-eeprom = <&bootcount>;
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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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panel-lvds0 {
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compatible = "simple-panel";
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};
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};
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&eeprom {
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partitions {
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compatible = "fixed-partitions";
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#address-cells = <1>;
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#size-cells = <1>;
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vpd@0 {
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reg = <0 800>;
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};
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bootcount: bootcount {
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reg = <1022 2>;
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};
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};
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};
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/*
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* This is not done in imx6q-ba16.dtsi, since that file is shared
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* with the kernel and the kernel should not reset the PHY, since
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* it lacks support for configuring the reserved registeres to
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* avoid a board specific voltage peak issue.
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*/
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&fec {
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phy-reset-gpios = <&gpio1 28 GPIO_ACTIVE_LOW>;
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phy-reset-duration = <1>;
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phy-reset-post-delay = <0>;
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};
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