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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2014 Google Inc.
*
* 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <arch/io.h>
#include <bootstate.h>
#include <console/console.h>
#include <console/post_codes.h>
#include <cpu/x86/smm.h>
#include <reg_script.h>
#include <spi-generic.h>
#include <stdlib.h>
#include <broadwell/pci_devs.h>
#include <broadwell/lpc.h>
#include <broadwell/me.h>
#include <broadwell/rcba.h>
#include <broadwell/spi.h>
#include <broadwell/systemagent.h>
const struct reg_script system_agent_finalize_script[] = {
REG_PCI_OR16(0x50, 1 << 0), /* GGC */
REG_PCI_OR32(0x5c, 1 << 0), /* DPR */
REG_PCI_OR32(0x78, 1 << 10), /* ME */
REG_PCI_OR32(0x90, 1 << 0), /* REMAPBASE */
REG_PCI_OR32(0x98, 1 << 0), /* REMAPLIMIT */
REG_PCI_OR32(0xa0, 1 << 0), /* TOM */
REG_PCI_OR32(0xa8, 1 << 0), /* TOUUD */
REG_PCI_OR32(0xb0, 1 << 0), /* BDSM */
REG_PCI_OR32(0xb4, 1 << 0), /* BGSM */
REG_PCI_OR32(0xb8, 1 << 0), /* TSEGMB */
REG_PCI_OR32(0xbc, 1 << 0), /* TOLUD */
REG_MMIO_OR32(MCH_BASE_ADDRESS + 0x5500, 1 << 0), /* PAVP */
REG_MMIO_OR32(MCH_BASE_ADDRESS + 0x5f00, 1 << 31), /* SA PM */
REG_MMIO_OR32(MCH_BASE_ADDRESS + 0x6020, 1 << 0), /* UMA GFX */
REG_MMIO_OR32(MCH_BASE_ADDRESS + 0x63fc, 1 << 0), /* VTDTRK */
REG_MMIO_OR32(MCH_BASE_ADDRESS + 0x6800, 1 << 31),
REG_MMIO_OR32(MCH_BASE_ADDRESS + 0x7000, 1 << 31),
REG_MMIO_OR32(MCH_BASE_ADDRESS + 0x77fc, 1 << 0),
REG_MMIO_WRITE8(MCH_BASE_ADDRESS + 0x50fc, 0x8f), /* MC */
REG_SCRIPT_END
};
const struct reg_script pch_finalize_script[] = {
/* Set SPI opcode menu */
REG_MMIO_WRITE16(RCBA_BASE_ADDRESS + SPIBAR_OFFSET + SPIBAR_PREOP,
SPI_OPPREFIX),
REG_MMIO_WRITE16(RCBA_BASE_ADDRESS + SPIBAR_OFFSET + SPIBAR_OPTYPE,
SPI_OPTYPE),
REG_MMIO_WRITE32(RCBA_BASE_ADDRESS + SPIBAR_OFFSET +
SPIBAR_OPMENU_LOWER, SPI_OPMENU_LOWER),
REG_MMIO_WRITE32(RCBA_BASE_ADDRESS + SPIBAR_OFFSET +
SPIBAR_OPMENU_UPPER, SPI_OPMENU_UPPER),
/* Lock SPIBAR */
REG_MMIO_OR32(RCBA_BASE_ADDRESS + SPIBAR_OFFSET + SPIBAR_HSFS,
SPIBAR_HSFS_FLOCKDN),
/* TC Lockdown */
REG_MMIO_OR32(RCBA_BASE_ADDRESS + 0x0050, (1 << 31)),
/* BIOS Interface Lockdown */
REG_MMIO_OR32(RCBA_BASE_ADDRESS + GCS, (1 << 0)),
/* Function Disable SUS Well Lockdown */
REG_MMIO_OR8(RCBA_BASE_ADDRESS + FDSW, (1 << 7)),
/* Global SMI Lock */
REG_PCI_OR16(GEN_PMCON_1, SMI_LOCK),
/* GEN_PMCON Lock */
REG_PCI_OR8(GEN_PMCON_LOCK, SLP_STR_POL_LOCK | ACPI_BASE_LOCK),
/* PMSYNC */
REG_MMIO_OR32(RCBA_BASE_ADDRESS + PMSYNC_CONFIG, (1 << 31)),
REG_SCRIPT_END
};
static void broadwell_finalize(void *unused)
{
printk(BIOS_DEBUG, "Finalizing chipset.\n");
reg_script_run_on_dev(SA_DEV_ROOT, system_agent_finalize_script);
reg_script_run_on_dev(PCH_DEV_LPC, pch_finalize_script);
/* Read+Write the following registers */
MCHBAR32(0x6030) = MCHBAR32(0x6030);
MCHBAR32(0x6034) = MCHBAR32(0x6034);
MCHBAR32(0x6008) = MCHBAR32(0x6008);
RCBA32(0x21a4) = RCBA32(0x21a4);
/* Re-init SPI after lockdown */
spi_init();
/* Lock down management engine */
intel_me_finalize();
printk(BIOS_DEBUG, "Finalizing SMM.\n");
outb(APM_CNT_FINALIZE, APM_CNT);
/* Indicate finalize step with post code */
post_code(POST_OS_BOOT);
}
BOOT_STATE_INIT_ENTRY(BS_OS_RESUME, BS_ON_ENTRY, broadwell_finalize, NULL);
BOOT_STATE_INIT_ENTRY(BS_PAYLOAD_LOAD, BS_ON_EXIT, broadwell_finalize, NULL);
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