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https://github.com/u-boot/u-boot.git
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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>
65 lines
1.4 KiB
C
65 lines
1.4 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (C) 2018 Xilinx, Inc. - Michal Simek
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*/
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#include <common.h>
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#include <dm.h>
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#include <errno.h>
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#include <log.h>
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#include <sysreset.h>
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#include <asm/gpio.h>
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struct gpio_reboot_priv {
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struct gpio_desc gpio;
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};
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static int gpio_reboot_request(struct udevice *dev, enum sysreset_t type)
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{
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struct gpio_reboot_priv *priv = dev_get_priv(dev);
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int ret;
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/*
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* When debug log is enabled please make sure that chars won't end up
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* in output fifo. Or you can append udelay(); to get enough time
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* to HW to emit output fifo.
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*/
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debug("GPIO reset\n");
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/* Writing 1 respects polarity (active high/low) based on gpio->flags */
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ret = dm_gpio_set_value(&priv->gpio, 1);
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if (ret < 0)
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return ret;
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return -EINPROGRESS;
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}
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static struct sysreset_ops gpio_reboot_ops = {
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.request = gpio_reboot_request,
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};
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static int gpio_reboot_probe(struct udevice *dev)
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{
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struct gpio_reboot_priv *priv = dev_get_priv(dev);
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/*
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* Linux kernel DT binding contain others optional properties
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* which are not supported now
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*/
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return gpio_request_by_name(dev, "gpios", 0, &priv->gpio, GPIOD_IS_OUT);
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}
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static const struct udevice_id led_gpio_ids[] = {
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{ .compatible = "gpio-restart" },
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{ }
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};
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U_BOOT_DRIVER(gpio_reboot) = {
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.id = UCLASS_SYSRESET,
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.name = "gpio_restart",
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.of_match = led_gpio_ids,
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.ops = &gpio_reboot_ops,
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.priv_auto = sizeof(struct gpio_reboot_priv),
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.probe = gpio_reboot_probe,
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};
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