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Diffstat (limited to 'src/soc/intel/skylake/finalize.c')
| -rw-r--r-- | src/soc/intel/skylake/finalize.c | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/src/soc/intel/skylake/finalize.c b/src/soc/intel/skylake/finalize.c new file mode 100644 index 0000000000..bf5cdcd9bf --- /dev/null +++ b/src/soc/intel/skylake/finalize.c @@ -0,0 +1,126 @@ +/* + * 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 <soc/pci_devs.h> +#include <soc/lpc.h> +#include <soc/me.h> +#include <soc/rcba.h> +#include <soc/spi.h> +#include <soc/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_OR32(MCH_BASE_ADDRESS + 0x50fc, 0x8f), + REG_MMIO_OR32(MCH_BASE_ADDRESS + 0x7ffc, 1 << 0), + REG_MMIO_OR32(MCH_BASE_ADDRESS + 0x5880, 1 << 5), + 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); + + /* Lock */ + RCBA32_OR(0x3a6c, 0x00000001); + + /* 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(); + + 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); |