sandbox_wdt.c
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/*
* Copyright 2017 Google, Inc
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <dm.h>
#include <wdt.h>
#include <asm/state.h>
DECLARE_GLOBAL_DATA_PTR;
static int sandbox_wdt_start(struct udevice *dev, u64 timeout, ulong flags)
{
struct sandbox_state *state = state_get_current();
state->wdt.counter = timeout;
state->wdt.running = true;
return 0;
}
static int sandbox_wdt_stop(struct udevice *dev)
{
struct sandbox_state *state = state_get_current();
state->wdt.running = false;
return 0;
}
static int sandbox_wdt_reset(struct udevice *dev)
{
struct sandbox_state *state = state_get_current();
state->wdt.reset_count++;
return 0;
}
static int sandbox_wdt_expire_now(struct udevice *dev, ulong flags)
{
sandbox_wdt_start(dev, 1, flags);
return 0;
}
static const struct wdt_ops sandbox_wdt_ops = {
.start = sandbox_wdt_start,
.reset = sandbox_wdt_reset,
.stop = sandbox_wdt_stop,
.expire_now = sandbox_wdt_expire_now,
};
static const struct udevice_id sandbox_wdt_ids[] = {
{ .compatible = "sandbox,wdt" },
{}
};
U_BOOT_DRIVER(wdt_sandbox) = {
.name = "wdt_sandbox",
.id = UCLASS_WDT,
.of_match = sandbox_wdt_ids,
.ops = &sandbox_wdt_ops,
};