u-boot/test/dm/timer.c
Sean Anderson 7616e3687e timer: Add a test for timer_timebase_fallback
To test this function, sandbox CPU must set cpu_platdata.timebase_freq on
bind. It also needs to expose a method to set the current cpu. I also make
some most members of cpu_sandbox_ops static.

On the timer side, the device tree property
sandbox,timebase-frequency-fallback controls whether sandbox_timer_probe
falls back to time_timebase_fallback or to SANDBOX_TIMER_RATE.

Signed-off-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2020-09-30 08:54:45 +08:00

50 lines
1.2 KiB
C

// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2015 Thomas Chou <thomas@wytron.com.tw>
*/
#include <common.h>
#include <dm.h>
#include <timer.h>
#include <dm/test.h>
#include <dm/device-internal.h>
#include <test/test.h>
#include <test/ut.h>
#include <asm/cpu.h>
/*
* Basic test of the timer uclass.
*/
static int dm_test_timer_base(struct unit_test_state *uts)
{
struct udevice *dev;
ut_assertok(uclass_get_device_by_name(UCLASS_TIMER, "timer@0", &dev));
ut_asserteq(1000000, timer_get_rate(dev));
return 0;
}
DM_TEST(dm_test_timer_base, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
/*
* Test of timebase fallback
*/
static int dm_test_timer_timebase_fallback(struct unit_test_state *uts)
{
struct udevice *dev;
cpu_sandbox_set_current("cpu-test1");
ut_assertok(uclass_get_device_by_name(UCLASS_TIMER, "timer@1", &dev));
ut_asserteq(3000000, timer_get_rate(dev));
ut_assertok(device_remove(dev, DM_REMOVE_NORMAL));
cpu_sandbox_set_current("cpu-test2");
ut_assertok(uclass_get_device_by_name(UCLASS_TIMER, "timer@1", &dev));
ut_asserteq(2000000, timer_get_rate(dev));
cpu_sandbox_set_current("cpu-test1");
return 0;
}
DM_TEST(dm_test_timer_timebase_fallback,
UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);