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c74675bd90
RTC devices could provide battery-backed memory that can be used for storing the reboot mode magic value. Add a new reboot-mode back-end that uses RTC to store the reboot-mode magic value. The driver also supports both endianness modes. Signed-off-by: Nandor Han <nandor.han@vaisala.com> Reviewed-by: Simon Glass <sjg@chromium.org>
72 lines
1.9 KiB
C
72 lines
1.9 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) 2018 Theobroma Systems Design und Consulting GmbH
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*/
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#include <common.h>
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#include <dm.h>
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#include <reboot-mode/reboot-mode.h>
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#include <env.h>
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#include <log.h>
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#include <asm/gpio.h>
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#include <asm/rtc.h>
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#include <asm/test.h>
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#include <dm/test.h>
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#include <test/test.h>
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#include <test/ut.h>
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#include <rtc.h>
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#include <linux/byteorder/generic.h>
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static int dm_test_reboot_mode_gpio(struct unit_test_state *uts)
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{
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struct udevice *gpio_dev;
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struct udevice *rm_dev;
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int gpio0_offset = 0;
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int gpio1_offset = 1;
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uclass_get_device_by_name(UCLASS_GPIO, "pinmux-gpios", &gpio_dev);
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/* Prepare the GPIOs for "download" mode */
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sandbox_gpio_set_direction(gpio_dev, gpio0_offset, 0);
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sandbox_gpio_set_direction(gpio_dev, gpio1_offset, 0);
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sandbox_gpio_set_value(gpio_dev, gpio0_offset, 1);
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sandbox_gpio_set_value(gpio_dev, gpio1_offset, 1);
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ut_assertok(uclass_get_device_by_name(UCLASS_REBOOT_MODE,
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"reboot-mode0", &rm_dev));
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ut_assertok(dm_reboot_mode_update(rm_dev));
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ut_asserteq_str("download", env_get("bootstatus"));
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return 0;
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}
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DM_TEST(dm_test_reboot_mode_gpio,
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UT_TESTF_PROBE_TEST | UT_TESTF_SCAN_FDT | UT_TESTF_FLAT_TREE);
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static int dm_test_reboot_mode_rtc(struct unit_test_state *uts)
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{
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struct udevice *rtc_dev;
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struct udevice *rm_dev;
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u32 read_val;
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u32 test_magic_val = cpu_to_be32(0x21969147);
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uclass_get_device_by_name(UCLASS_RTC, "rtc@43",
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&rtc_dev);
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dm_rtc_write(rtc_dev, REG_AUX0, (u8 *)&test_magic_val, 4);
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ut_assertok(uclass_get_device_by_name(UCLASS_REBOOT_MODE,
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"reboot-mode@14", &rm_dev));
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ut_assertok(dm_reboot_mode_update(rm_dev));
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ut_asserteq_str("test", env_get("bootstatus"));
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dm_rtc_read(rtc_dev, REG_AUX0, (u8 *)&read_val, 4);
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ut_asserteq(read_val, 0);
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return 0;
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}
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DM_TEST(dm_test_reboot_mode_rtc,
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UT_TESTF_PROBE_TEST | UT_TESTF_SCAN_FDT | UT_TESTF_FLAT_TREE);
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