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// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
/*
* (C) Copyright 2019 Amarula Solutions(India)
* Author: Jagan Teki <jagan@amarulasolutions.com>
*/
#include <common.h>
#include <init.h>
#include <asm/io.h>
#include <asm/arch-rockchip/clock.h>
#include <asm/arch-rockchip/cru.h>
#include <asm/arch-rockchip/hardware.h>
#include <linux/err.h>
static char *get_reset_cause(void)
{
struct rockchip_cru *cru = rockchip_get_cru();
char *cause = NULL;
if (IS_ERR(cru))
return cause;
switch (cru->glb_rst_st) {
case GLB_POR_RST:
cause = "POR";
break;
case FST_GLB_RST_ST:
case SND_GLB_RST_ST:
cause = "RST";
break;
case FST_GLB_TSADC_RST_ST:
case SND_GLB_TSADC_RST_ST:
cause = "THERMAL";
break;
case FST_GLB_WDT_RST_ST:
case SND_GLB_WDT_RST_ST:
cause = "WDOG";
break;
default:
cause = "unknown reset";
}
/**
* reset_reason env is used by rk3288, due to special use case
* to figure it the boot behavior. so keep this as it is.
*/
env_set("reset_reason", cause);
/*
* Clear glb_rst_st, so we can determine the last reset cause
* for following resets.
*/
rk_clrreg(&cru->glb_rst_st, GLB_RST_ST_MASK);
return cause;
}
int print_cpuinfo(void)
{
printf("SoC: Rockchip %s\n", CONFIG_SYS_SOC);
printf("Reset cause: %s\n", get_reset_cause());
/* TODO print operating temparature and clock */
return 0;
}
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