Commit 201c29a2 authored by Simon Glass's avatar Simon Glass
Browse files

dm: test: Add a test for the reset uclass

Add tests that confirm that the drivers work as expected, and we can walk
through the available reset types trying to reset the board.
Signed-off-by: default avatarSimon Glass <>
parent 5010d98f
......@@ -20,6 +20,7 @@ obj-$(CONFIG_DM_ETH) += eth.o
obj-$(CONFIG_DM_GPIO) += gpio.o
obj-$(CONFIG_DM_I2C) += i2c.o
obj-$(CONFIG_DM_PCI) += pci.o
obj-$(CONFIG_RESET) += reset.o
obj-$(CONFIG_DM_RTC) += rtc.o
obj-$(CONFIG_DM_SPI_FLASH) += sf.o
obj-$(CONFIG_DM_SPI) += spi.o
* Copyright (C) 2015 Google, Inc
* SPDX-License-Identifier: GPL-2.0+
#include <common.h>
#include <dm.h>
#include <reset.h>
#include <asm/state.h>
#include <asm/test.h>
#include <dm/test.h>
#include <test/ut.h>
/* Test that we can use particular reset devices */
static int dm_test_reset_base(struct unit_test_state *uts)
struct sandbox_state *state = state_get_current();
struct udevice *dev;
/* Device 0 is the platform data device - it should never respond */
ut_assertok(uclass_get_device(UCLASS_RESET, 0, &dev));
ut_asserteq(-ENODEV, reset_request(dev, RESET_WARM));
ut_asserteq(-ENODEV, reset_request(dev, RESET_COLD));
ut_asserteq(-ENODEV, reset_request(dev, RESET_POWER));
/* Device 1 is the warm reset device */
ut_assertok(uclass_get_device(UCLASS_RESET, 1, &dev));
ut_asserteq(-EACCES, reset_request(dev, RESET_WARM));
ut_asserteq(-ENOSYS, reset_request(dev, RESET_COLD));
ut_asserteq(-ENOSYS, reset_request(dev, RESET_POWER));
state->reset_allowed[RESET_WARM] = true;
ut_asserteq(-EINPROGRESS, reset_request(dev, RESET_WARM));
state->reset_allowed[RESET_WARM] = false;
/* Device 2 is the cold reset device */
ut_assertok(uclass_get_device(UCLASS_RESET, 2, &dev));
ut_asserteq(-ENOSYS, reset_request(dev, RESET_WARM));
ut_asserteq(-EACCES, reset_request(dev, RESET_COLD));
state->reset_allowed[RESET_POWER] = false;
ut_asserteq(-EACCES, reset_request(dev, RESET_POWER));
state->reset_allowed[RESET_POWER] = true;
return 0;
/* Test that we can walk through the reset devices */
static int dm_test_reset_walk(struct unit_test_state *uts)
struct sandbox_state *state = state_get_current();
/* If we generate a power reset, we will exit sandbox! */
state->reset_allowed[RESET_POWER] = false;
ut_asserteq(-EACCES, reset_walk(RESET_WARM));
ut_asserteq(-EACCES, reset_walk(RESET_COLD));
ut_asserteq(-EACCES, reset_walk(RESET_POWER));
* Enable cold reset - this should make cold reset work, plus a warm
* reset should be promoted to cold, since this is the next step
* along.
state->reset_allowed[RESET_COLD] = true;
ut_asserteq(-EINPROGRESS, reset_walk(RESET_WARM));
ut_asserteq(-EINPROGRESS, reset_walk(RESET_COLD));
ut_asserteq(-EACCES, reset_walk(RESET_POWER));
state->reset_allowed[RESET_COLD] = false;
state->reset_allowed[RESET_POWER] = true;
return 0;
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