src/soc/intel/apollolake/pnpconfig.c

/*
 * This file is part of the coreboot project.
 *
 * Copyright (C) 2017 Intel Corporation.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; version 2 of the License.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
*/

#include <bootstate.h>
#include <console/console.h>
#include <intelblocks/pcr.h>
#include <soc/pci_devs.h>
#include <soc/pnpconfig.h>
#include "chip.h"

static const struct pnpconfig perf[] = {
	VALUEFORPERF_MSG_VALUES_PLATFORM_DEFAULT,
};

static const struct pnpconfig power[] = {
	VALUEFORPOWER_MSG_VALUES_PLATFORM_DEFAULT,
};

static const struct pnpconfig power_perf[] = {
	VALUEFORPWRPERF_MSG_VALUES_PLATFORM_DEFAULT,
};

static void pnp_settings(void *unused)
{
	int index;
	size_t arrsize;
	const struct pnpconfig *pnpconfigarr;
	struct device *dev = SA_DEV_ROOT;
	struct soc_intel_apollolake_config *config = dev->chip_info;
	switch (config->pnp_settings) {
	case PNP_PERF:
		pnpconfigarr = perf;
		arrsize = ARRAY_SIZE(perf);
		break;
	case PNP_POWER:
		pnpconfigarr = power;
		arrsize = ARRAY_SIZE(power);
		break;
	case PNP_PERF_POWER:
		pnpconfigarr = power_perf;
		arrsize = ARRAY_SIZE(power_perf);
		break;
	default:
		printk(BIOS_NOTICE, "Invalid PNP settings selected");
		return;
	}

	for (index = 0; index < arrsize; index++)
		pcr_rmw32(pnpconfigarr[index].msgport,
			  pnpconfigarr[index].msgregaddr,
			  pnpconfigarr[index].mask,
			  pnpconfigarr[index].value);
}

BOOT_STATE_INIT_ENTRY(BS_DEV_INIT, BS_ON_EXIT, pnp_settings, NULL);