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https://github.com/AsahiLinux/u-boot
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55 lines
906 B
C
55 lines
906 B
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright 2017 General Electric Company
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*/
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#include <common.h>
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#include <env.h>
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#include <dm/uclass.h>
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#include <rtc.h>
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void check_time(void)
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{
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struct udevice *dev;
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int ret, i;
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struct rtc_time tm;
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u8 retry = 3;
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ret = uclass_get_device(UCLASS_RTC, 0, &dev);
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if (ret) {
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env_set("rtc_status", "FAIL");
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return;
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}
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for (i = 0; i < retry; i++) {
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ret = dm_rtc_get(dev, &tm);
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if (!ret || ret == -EINVAL)
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break;
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}
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if (!ret && tm.tm_year > 2037) {
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tm.tm_sec = 0;
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tm.tm_min = 0;
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tm.tm_hour = 0;
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tm.tm_mday = 1;
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tm.tm_wday = 2;
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tm.tm_mon = 1;
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tm.tm_year = 2036;
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for (i = 0; i < retry; i++) {
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ret = dm_rtc_set(dev, &tm);
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if (!ret)
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break;
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}
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if (ret >= 0)
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ret = 2038;
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}
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if (ret < 0)
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env_set("rtc_status", "FAIL");
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else if (ret == 2038)
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env_set("rtc_status", "2038");
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else
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env_set("rtc_status", "OK");
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}
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