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authorAaron Durbin <adurbin@chromium.org>2016-06-28 15:41:07 -0500
committerAaron Durbin <adurbin@chromium.org>2016-06-29 23:15:48 +0200
commitc14a1a940f06546e0135d2c165d1706e2827818e (patch)
tree96b6eeae8227f508d560d0b9de75ed80b1acf1c6 /src/soc/intel/common/nhlt.c
parented114da4370ebee5126e8faf4eb0f1c9b96b32db (diff)
downloadcoreboot-c14a1a940f06546e0135d2c165d1706e2827818e.tar.xz
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 <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/15490 Reviewed-by: Furquan Shaikh <furquan@google.com> Tested-by: build bot (Jenkins)
Diffstat (limited to 'src/soc/intel/common/nhlt.c')
-rw-r--r--src/soc/intel/common/nhlt.c41
1 files changed, 41 insertions, 0 deletions
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 <cbmem.h>
+#include <nhlt.h>
+#include <soc/acpi.h>
+
+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);
+}