Commit 9961a0b6 authored by Thomas Chou's avatar Thomas Chou Committed by Simon Glass

sandbox: add a sandbox timer and basic test

Add a sandbox timer which get time from host os and a basic
test.
Signed-off-by: default avatarThomas Chou <thomas@wytron.com.tw>
Reviewed-by: default avatarSimon Glass <sjg@chromium.org>
parent 67521957
......@@ -177,6 +177,10 @@
sides = <4>;
};
timer {
compatible = "sandbox,timer";
};
tpm {
compatible = "google,sandbox-tpm";
};
......
......@@ -26,6 +26,7 @@ void flush_cache(unsigned long start, unsigned long size)
{
}
#ifndef CONFIG_TIMER
/* system timer offset in ms */
static unsigned long sandbox_timer_offset;
......@@ -38,6 +39,7 @@ unsigned long timer_read_counter(void)
{
return os_get_nsec() / 1000 + sandbox_timer_offset * 1000;
}
#endif
int dram_init(void)
{
......
......@@ -53,6 +53,8 @@ CONFIG_SANDBOX_SERIAL=y
CONFIG_SOUND=y
CONFIG_SOUND_SANDBOX=y
CONFIG_SANDBOX_SPI=y
CONFIG_TIMER=y
CONFIG_SANDBOX_TIMER=y
CONFIG_TPM_TIS_SANDBOX=y
CONFIG_USB=y
CONFIG_DM_USB=y
......
Sandbox timer
The sandbox timer device is an emulated device which gets time from
host os.
Required properties:
compatible: "sandbox,timer"
......@@ -16,4 +16,11 @@ config ALTERA_TIMER
Select this to enable an timer for Altera devices. Please find
details on the "Embedded Peripherals IP User Guide" of Altera.
config SANDBOX_TIMER
bool "Sandbox Timer support"
depends on SANDBOX && TIMER
help
Select this to enable an emulated timer for sandbox. It gets
time from host os.
endmenu
......@@ -6,3 +6,4 @@
obj-$(CONFIG_TIMER) += timer-uclass.o
obj-$(CONFIG_ALTERA_TIMER) += altera_timer.o
obj-$(CONFIG_SANDBOX_TIMER) += sandbox_timer.o
/*
* Copyright (C) 2015 Thomas Chou <thomas@wytron.com.tw>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <dm.h>
#include <errno.h>
#include <timer.h>
#include <os.h>
/* system timer offset in ms */
static unsigned long sandbox_timer_offset;
void sandbox_timer_add_offset(unsigned long offset)
{
sandbox_timer_offset += offset;
}
static int sandbox_timer_get_count(struct udevice *dev, unsigned long *count)
{
*count = os_get_nsec() / 1000 + sandbox_timer_offset * 1000;
return 0;
}
static int sandbox_timer_probe(struct udevice *dev)
{
struct timer_dev_priv *uc_priv = dev_get_uclass_priv(dev);
uc_priv->clock_rate = 1000000;
return 0;
}
static const struct timer_ops sandbox_timer_ops = {
.get_count = sandbox_timer_get_count,
};
static const struct udevice_id sandbox_timer_ids[] = {
{ .compatible = "sandbox,timer" },
{ }
};
U_BOOT_DRIVER(sandbox_timer) = {
.name = "sandbox_timer",
.id = UCLASS_TIMER,
.of_match = sandbox_timer_ids,
.probe = sandbox_timer_probe,
.ops = &sandbox_timer_ops,
.flags = DM_FLAG_PRE_RELOC,
};
......@@ -19,7 +19,9 @@
#define CONFIG_IO_TRACE
#define CONFIG_CMD_IOTRACE
#ifndef CONFIG_TIMER
#define CONFIG_SYS_TIMER_RATE 1000000
#endif
#define CONFIG_SYS_STDIO_DEREGISTER
......
......@@ -33,5 +33,6 @@ obj-y += syscon.o
obj-$(CONFIG_DM_USB) += usb.o
obj-$(CONFIG_DM_PMIC) += pmic.o
obj-$(CONFIG_DM_REGULATOR) += regulator.o
obj-$(CONFIG_TIMER) += timer.o
obj-$(CONFIG_ADC) += adc.o
endif
/*
* Copyright (C) 2015 Thomas Chou <thomas@wytron.com.tw>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <dm.h>
#include <timer.h>
#include <dm/test.h>
#include <test/ut.h>
DECLARE_GLOBAL_DATA_PTR;
/*
* 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(UCLASS_TIMER, 0, &dev));
ut_asserteq(1000000, timer_get_rate(dev));
return 0;
}
DM_TEST(dm_test_timer_base, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
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