0b15b70b18
1. Programs PNP values for AUNIT, BUNIT & TUNIT registers as per reference code. 2. A new configuration option pnp_settings is introduced in devicetree.cb to select PNP settings among performance, power, power & performance. TEST = built and booted glkrvp, verfied that the callback gets control, verified warm and cold reboots. Change-Id: Ibd70a42c9406941c8a93cc972f22c2475e9d0200 Signed-off-by: Divya Chellap <divya.chellappa@intel.com> Reviewed-on: https://review.coreboot.org/22488 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
67 lines
1.8 KiB
C
67 lines
1.8 KiB
C
/*
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* This file is part of the coreboot project.
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*
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* Copyright (C) 2017 Intel Corporation.
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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 <bootstate.h>
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#include <console/console.h>
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#include <intelblocks/pcr.h>
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#include <soc/pci_devs.h>
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#include <soc/pnpconfig.h>
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#include "chip.h"
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static const struct pnpconfig perf[] = {
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VALUEFORPERF_MSG_VALUES_PLATFORM_DEFAULT,
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};
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static const struct pnpconfig power[] = {
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VALUEFORPOWER_MSG_VALUES_PLATFORM_DEFAULT,
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};
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static const struct pnpconfig power_perf[] = {
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VALUEFORPWRPERF_MSG_VALUES_PLATFORM_DEFAULT,
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};
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static void pnp_settings(void *unused)
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{
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int index;
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size_t arrsize;
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const struct pnpconfig *pnpconfigarr;
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struct device *dev = SA_DEV_ROOT;
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struct soc_intel_apollolake_config *config = dev->chip_info;
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switch (config->pnp_settings) {
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case PNP_PERF:
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pnpconfigarr = perf;
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arrsize = ARRAY_SIZE(perf);
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break;
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case PNP_POWER:
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pnpconfigarr = power;
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arrsize = ARRAY_SIZE(power);
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break;
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case PNP_PERF_POWER:
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pnpconfigarr = power_perf;
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arrsize = ARRAY_SIZE(power_perf);
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break;
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default:
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printk(BIOS_NOTICE, "Invalid PNP settings selected");
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return;
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}
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for (index = 0; index < arrsize; index++)
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pcr_rmw32(pnpconfigarr[index].msgport,
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pnpconfigarr[index].msgregaddr,
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pnpconfigarr[index].mask,
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pnpconfigarr[index].value);
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}
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BOOT_STATE_INIT_ENTRY(BS_DEV_INIT, BS_ON_EXIT, pnp_settings, NULL);
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