src/soc/intel/common/nhlt.c

/*
 * This file is part of the coreboot project.
 *
 * Copyright 2015 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.
 */

#include <cbmem.h>
#include <nhlt.h>
#include <soc/nvs.h>

uintptr_t nhlt_soc_serialize(struct nhlt *nhlt, uintptr_t acpi_addr)
{
	return nhlt_soc_serialize_oem_overrides(nhlt, acpi_addr, NULL, NULL, 0);
}

uintptr_t nhlt_soc_serialize_oem_overrides(struct nhlt *nhlt,
	uintptr_t acpi_addr, const char *oem_id, const char *oem_table_id,
	uint32_t oem_revision)
{
	global_nvs_t *gnvs;

	gnvs = cbmem_find(CBMEM_ID_ACPI_GNVS);

	if (gnvs == NULL)
		return acpi_addr;

	/* Update NHLT GNVS Data */
	gnvs->nhla = (uintptr_t)acpi_addr;
	gnvs->nhll = nhlt_current_size(nhlt);

	return nhlt_serialize_oem_overrides(nhlt, acpi_addr,
					oem_id, oem_table_id, oem_revision);
}