print_reset_status.c

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/* SPDX-License-Identifier: GPL-2.0-only */
 
#include <console/console.h>
#include <amdblocks/acpimmio.h>
 
static void print_num_status_bits(int num_bits, uint32_t status,
                                  const char *const bit_names[])
{
        int i;
 
        if (!status)
                return;
 
        for (i = num_bits - 1; i >= 0; i--) {
                if (status & (1 << i)) {
                        if (bit_names[i])
                                printk(BIOS_DEBUG, "%s ", bit_names[i]);
                        else
                                printk(BIOS_DEBUG, "BIT%d ", i);
                }
        }
}
 
void fch_print_pmxc0_status(void)
{
        /* PMxC0 S5/Reset Status shows the source of previous reset. */
        uint32_t pmxc0_status = pm_read32(PM_RST_STATUS);
 
        static const char *const pmxc0_status_bits[32] = {
                [0] = "ThermalTrip",
                [1] = "FourSecondPwrBtn",
                [2] = "Shutdown",
                [3] = "ThermalTripFromTemp",
                [4] = "RemotePowerDownFromASF",
                [5] = "ShutDownFan0",
                [9] = "InternalThermalTrip",
                [16] = "UserRst",
                [17] = "SoftPciRst",
                [18] = "DoInit",
                [19] = "DoReset",
                [20] = "DoFullReset",
                [21] = "SleepReset",
                [22] = "KbReset",
                [23] = "LtReset/ShutdownMsg",
                [24] = "FailBootRst",
                [25] = "WatchdogIssueReset",
                [26] = "RemoteResetFromASF",
                [27] = "SyncFlood",
                [28] = "HangReset",
                [29] = "EcWatchdogRst",
                [30] = "SdpParityErr",
                [31] = "SwSyncFloodFlag",
        };
 
        printk(BIOS_DEBUG, "PMxC0 STATUS: 0x%x ", pmxc0_status);
        print_num_status_bits(ARRAY_SIZE(pmxc0_status_bits), pmxc0_status, pmxc0_status_bits);
        printk(BIOS_DEBUG, "\n");
}