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d678a59d2d
When bringing in the series 'arm: dts: am62-beagleplay: Fix Beagleplay Ethernet"' I failed to notice that b4 noticed it was based on next and so took that as the base commit and merged that part of next to master. This reverts commitc8ffd1356d, reversing changes made to2ee6f3a5f7. Reported-by: Jonas Karlman <jonas@kwiboo.se> Signed-off-by: Tom Rini <trini@konsulko.com>
48 lines
1.1 KiB
C
48 lines
1.1 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Raspberry Pi 4 firmware reset driver
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*
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* Copyright (C) 2020 Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
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*/
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#include <common.h>
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#include <dm.h>
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#include <reset-uclass.h>
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#include <asm/arch/msg.h>
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#include <dt-bindings/reset/raspberrypi,firmware-reset.h>
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static int raspberrypi_reset_request(struct reset_ctl *reset_ctl)
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{
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if (reset_ctl->id >= RASPBERRYPI_FIRMWARE_RESET_NUM_IDS)
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return -EINVAL;
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return 0;
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}
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static int raspberrypi_reset_assert(struct reset_ctl *reset_ctl)
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{
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switch (reset_ctl->id) {
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case RASPBERRYPI_FIRMWARE_RESET_ID_USB:
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bcm2711_notify_vl805_reset();
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return 0;
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default:
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return -EINVAL;
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}
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}
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struct reset_ops raspberrypi_reset_ops = {
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.request = raspberrypi_reset_request,
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.rst_assert = raspberrypi_reset_assert,
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};
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static const struct udevice_id raspberrypi_reset_ids[] = {
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{ .compatible = "raspberrypi,firmware-reset" },
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{ }
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};
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U_BOOT_DRIVER(raspberrypi_reset) = {
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.name = "raspberrypi-reset",
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.id = UCLASS_RESET,
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.of_match = raspberrypi_reset_ids,
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.ops = &raspberrypi_reset_ops,
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};
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