241f0a5593
Add VPD variables for enabling/disabling FRB2 watchdog timer and setting the timer countdown value. By default it would start the timer and trigger hard reset when it's expired. The timer is expected to be stopped later by payload or OS. Right now the timer is started after FSP-M. Ideally it should be before FSP-M (to detect memory training error). Tested on OCP Mono Lake. Change-Id: I82b244d08380a0461c92662e025d8b95b3133e23 Signed-off-by: Johnny Lin <johnny_lin@wiwynn.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/36180 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Patrick Rudolph <siro@das-labor.org>
98 lines
2.6 KiB
C
98 lines
2.6 KiB
C
/*
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* This file is part of the coreboot project.
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*
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* Copyright (C) 2007-2009 coresystems GmbH
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* Copyright (C) 2011 Google Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <device/device.h>
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#include <pc80/mc146818rtc.h>
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#include <cf9_reset.h>
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#include <smbios.h>
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#include <string.h>
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#include <drivers/vpd/vpd.h>
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#include <console/console.h>
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#include <drivers/ipmi/ipmi_ops.h>
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#include "ipmi.h"
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/* VPD variable for enabling/disabling FRB2 timer. */
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#define FRB2_TIMER "FRB2_TIMER"
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/* VPD variable for setting FRB2 timer countdown value. */
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#define FRB2_COUNTDOWN "FRB2_COUNTDOWN"
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#define VPD_LEN 10
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/* Default countdown is 15 minutes. */
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#define DEFAULT_COUNTDOWN 9000
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static void init_frb2_wdt(void)
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{
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char val[VPD_LEN];
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/* Enable FRB2 timer by default. */
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u8 enable = 1;
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uint16_t countdown;
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if (vpd_get_bool(FRB2_TIMER, VPD_RW, &enable)) {
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if (!enable) {
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printk(BIOS_DEBUG, "Disable FRB2 timer\n");
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ipmi_stop_bmc_wdt(BMC_KCS_BASE);
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}
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}
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if (enable) {
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if (vpd_gets(FRB2_COUNTDOWN, val, VPD_LEN, VPD_RW)) {
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countdown = (uint16_t)atol(val);
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printk(BIOS_DEBUG, "FRB2 timer countdown set to: %d\n",
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countdown);
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} else {
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printk(BIOS_DEBUG, "FRB2 timer use default value: %d\n",
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DEFAULT_COUNTDOWN);
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countdown = DEFAULT_COUNTDOWN;
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}
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ipmi_init_and_start_bmc_wdt(BMC_KCS_BASE, countdown,
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TIMEOUT_HARD_RESET);
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}
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}
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/*
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* mainboard_enable is executed as first thing after enumerate_buses().
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* This is the earliest point to add customization.
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*/
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static void mainboard_enable(struct device *dev)
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{
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ipmi_oem_rsp_t rsp;
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init_frb2_wdt();
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if (is_ipmi_clear_cmos_set(&rsp)) {
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/* TODO: Should also try to restore CMOS to cmos.default
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* if USE_OPTION_TABLE is set */
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cmos_init(1);
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clear_ipmi_flags(&rsp);
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system_reset();
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}
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}
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struct chip_operations mainboard_ops = {
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.enable_dev = mainboard_enable,
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};
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void smbios_fill_dimm_locator(const struct dimm_info *dimm, struct smbios_type17 *t)
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{
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char locator[64] = {0};
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snprintf(locator, sizeof(locator), "DIMM_%c%u", 'A' + dimm->channel_num,
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dimm->dimm_num);
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t->device_locator = smbios_add_string(t->eos, locator);
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snprintf(locator, sizeof(locator), "_Node0_Channel%d_Dimm%d", dimm->channel_num,
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dimm->dimm_num);
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t->bank_locator = smbios_add_string(t->eos, locator);
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}
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