From c14a1a940f06546e0135d2c165d1706e2827818e Mon Sep 17 00:00:00 2001 From: Aaron Durbin Date: Tue, 28 Jun 2016 15:41:07 -0500 Subject: soc/intel/{common,skylake}: provide common NHLT SoC support The nhlt_soc_serialize() and nhlt_soc_serialize_oem_overrides() functions should be able to be leveraged on all Intel SoCs which support NHLT. Therefore provide that functionality and make skylake use it. Change-Id: Ib5535cc874f2680ec22554cecaf97b09753cacd0 Signed-off-by: Aaron Durbin Reviewed-on: https://review.coreboot.org/15490 Reviewed-by: Furquan Shaikh Tested-by: build bot (Jenkins) --- src/soc/intel/common/nhlt.c | 41 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 41 insertions(+) create mode 100644 src/soc/intel/common/nhlt.c (limited to 'src/soc/intel/common/nhlt.c') diff --git a/src/soc/intel/common/nhlt.c b/src/soc/intel/common/nhlt.c new file mode 100644 index 0000000000..d498152406 --- /dev/null +++ b/src/soc/intel/common/nhlt.c @@ -0,0 +1,41 @@ +/* + * 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 +#include +#include + +uintptr_t nhlt_soc_serialize(struct nhlt *nhlt, uintptr_t acpi_addr) +{ + return nhlt_soc_serialize_oem_overrides(nhlt, acpi_addr, NULL, NULL); +} + +uintptr_t nhlt_soc_serialize_oem_overrides(struct nhlt *nhlt, + uintptr_t acpi_addr, const char *oem_id, const char *oem_table_id) +{ + 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); +} -- cgit v1.2.3