b2f423578e
Based on the config options selected, decide at runtime which TPM interface should be disabled so that ACPI tables are not generated for that interface. TEST=Verified that unused interface does not show up in ACPI tables. Change-Id: Iee8f49e484ed024c549f60c88d874c08873b75cb Signed-off-by: Furquan Shaikh <furquan@chromium.org> Reviewed-on: https://review.coreboot.org/20141 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Philippe Mathieu-Daudé <philippe.mathieu.daude@gmail.com>
83 lines
2.0 KiB
C
83 lines
2.0 KiB
C
/*
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* This file is part of the coreboot project.
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*
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* Copyright (C) 2016 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 <arch/acpi.h>
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#include <baseboard/variants.h>
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#include <device/device.h>
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#include <ec/ec.h>
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#include <soc/pci_devs.h>
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#include <soc/nhlt.h>
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#include <vendorcode/google/chromeos/chromeos.h>
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static void mainboard_init(device_t dev)
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{
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mainboard_ec_init();
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}
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static unsigned long mainboard_write_acpi_tables(device_t device,
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unsigned long current, acpi_rsdp_t *rsdp)
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{
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uintptr_t start_addr;
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uintptr_t end_addr;
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struct nhlt *nhlt;
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const char *oem_id = NULL;
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const char *oem_table_id = NULL;
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uint32_t oem_revision = 0;
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start_addr = current;
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nhlt = nhlt_init();
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if (nhlt == NULL)
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return start_addr;
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variant_nhlt_init(nhlt);
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variant_nhlt_oem_overrides(&oem_id, &oem_table_id, &oem_revision);
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end_addr = nhlt_soc_serialize_oem_overrides(nhlt, start_addr,
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oem_id, oem_table_id, oem_revision);
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if (end_addr != start_addr)
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acpi_add_table(rsdp, (void *)start_addr);
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return end_addr;
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}
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static void mainboard_enable(device_t dev)
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{
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device_t tpm;
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dev->ops->init = mainboard_init;
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dev->ops->acpi_inject_dsdt_generator = chromeos_dsdt_generator;
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dev->ops->write_acpi_tables = mainboard_write_acpi_tables;
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/* Disable unused interface(s) for TPM. */
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if (!IS_ENABLED(CONFIG_POPPY_USE_SPI_TPM)) {
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tpm = PCH_DEV_GSPI0;
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if (tpm)
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tpm->enabled = 0;
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}
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if (!IS_ENABLED(CONFIG_POPPY_USE_I2C_TPM)) {
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tpm = PCH_DEV_I2C1;
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if (tpm)
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tpm->enabled = 0;
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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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