1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859 |
- // SPDX-License-Identifier: GPL-2.0+
- /*
- * Copyright (C) 2017 Álvaro Fernández Rojas <noltari@gmail.com>
- */
- #include <common.h>
- #include <dm.h>
- #include <errno.h>
- #include <sysreset.h>
- #include <wdt.h>
- struct wdt_reboot_priv {
- struct udevice *wdt;
- };
- static int wdt_reboot_request(struct udevice *dev, enum sysreset_t type)
- {
- struct wdt_reboot_priv *priv = dev_get_priv(dev);
- int ret;
- ret = wdt_expire_now(priv->wdt, 0);
- if (ret)
- return ret;
- return -EINPROGRESS;
- }
- static struct sysreset_ops wdt_reboot_ops = {
- .request = wdt_reboot_request,
- };
- int wdt_reboot_probe(struct udevice *dev)
- {
- struct wdt_reboot_priv *priv = dev_get_priv(dev);
- int err;
- err = uclass_get_device_by_phandle(UCLASS_WDT, dev,
- "wdt", &priv->wdt);
- if (err) {
- pr_err("unable to find wdt device\n");
- return err;
- }
- return 0;
- }
- static const struct udevice_id wdt_reboot_ids[] = {
- { .compatible = "wdt-reboot" },
- { /* sentinel */ }
- };
- U_BOOT_DRIVER(wdt_reboot) = {
- .name = "wdt_reboot",
- .id = UCLASS_SYSRESET,
- .of_match = wdt_reboot_ids,
- .ops = &wdt_reboot_ops,
- .priv_auto = sizeof(struct wdt_reboot_priv),
- .probe = wdt_reboot_probe,
- };
|