[people/ms/u-boot.git] / drivers / watchdog / sandbox_wdt.c

/*
 * 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,
};
Commit	Line	Data
0753bc2d	1	/*
	2	* Copyright 2017 Google, Inc
	3	*
	4	* SPDX-License-Identifier: GPL-2.0+
	5	*/
	6
	7	#include <common.h>
	8	#include <dm.h>
0753bc2d	9	#include <wdt.h>
78df5e1e	10	#include <asm/state.h>
0753bc2d	11
	12	DECLARE_GLOBAL_DATA_PTR;
	13
	14	static int sandbox_wdt_start(struct udevice *dev, u64 timeout, ulong flags)
	15	{
	16	struct sandbox_state *state = state_get_current();
	17
	18	state->wdt.counter = timeout;
	19	state->wdt.running = true;
	20
	21	return 0;
	22	}
	23
	24	static int sandbox_wdt_stop(struct udevice *dev)
	25	{
	26	struct sandbox_state *state = state_get_current();
	27
	28	state->wdt.running = false;
	29
	30	return 0;
	31	}
	32
	33	static int sandbox_wdt_reset(struct udevice *dev)
	34	{
	35	struct sandbox_state *state = state_get_current();
	36
	37	state->wdt.reset_count++;
	38
	39	return 0;
	40	}
	41
	42	static int sandbox_wdt_expire_now(struct udevice *dev, ulong flags)
	43	{
	44	sandbox_wdt_start(dev, 1, flags);
	45
	46	return 0;
	47	}
	48
0753bc2d	49	static const struct wdt_ops sandbox_wdt_ops = {
	50	.start = sandbox_wdt_start,
	51	.reset = sandbox_wdt_reset,
	52	.stop = sandbox_wdt_stop,
	53	.expire_now = sandbox_wdt_expire_now,
	54	};
	55
	56	static const struct udevice_id sandbox_wdt_ids[] = {
	57	{ .compatible = "sandbox,wdt" },
	58	{}
	59	};
	60
	61	U_BOOT_DRIVER(wdt_sandbox) = {
	62	.name = "wdt_sandbox",
	63	.id = UCLASS_WDT,
	64	.of_match = sandbox_wdt_ids,
	65	.ops = &sandbox_wdt_ops,
0753bc2d	66	};