mainboard/google/reef: add baseboard nhlt configuration

Move the current NHLT configuration implementation to the baseboard
area such that other variants can leverage it or provide their
own configuration.

BUG=chrome-os-partner:56677

Change-Id: If0d48cacdc793492e1618d0eda02a149e33f0650
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/16431
Tested-by: build bot (Jenkins)
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>

4 files changed, 43 insertions, 14 deletions

diff --git a/src/mainboard/google/reef/mainboard.c b/src/mainboard/google/reef/mainboard.c
index a2421df1e6..016c9ac3c9 100644
--- a/src/mainboard/google/reef/mainboard.c
+++ b/src/mainboard/google/reef/mainboard.c
@@ -56,20 +56,7 @@ static unsigned long mainboard_write_acpi_tables(
 	if (nhlt == NULL)
 		return start_addr;
 
-	/* 2 Channel DMIC array. */
-	if (!nhlt_soc_add_dmic_array(nhlt, 2))
-		printk(BIOS_ERR, "Added 2CH DMIC array.\n");
-
-	/* Dialog for Headset codec.
-	 * Headset codec is bi-directional but uses the same configuration
-	 * settings for render and capture endpoints.
-	 */
-	if (!nhlt_soc_add_da7219(nhlt, AUDIO_LINK_SSP1))
-		printk(BIOS_ERR, "Added Dialog_7219 codec.\n");
-
-	/* MAXIM Smart Amps for left and right speakers. */
-	if (!nhlt_soc_add_max98357(nhlt, AUDIO_LINK_SSP5))
-		printk(BIOS_ERR, "Added Maxim_98357 codec.\n");
+	variant_nhlt_init(nhlt);
 
 	end_addr = nhlt_soc_serialize(nhlt, start_addr);
 
diff --git a/src/mainboard/google/reef/variants/baseboard/Makefile.inc b/src/mainboard/google/reef/variants/baseboard/Makefile.inc
index f024c2a799..d2d344c5e0 100644
--- a/src/mainboard/google/reef/variants/baseboard/Makefile.inc
+++ b/src/mainboard/google/reef/variants/baseboard/Makefile.inc
@@ -5,5 +5,6 @@ romstage-y += memory.c
 
 ramstage-y += boardid.c
 ramstage-y += gpio.c
+ramstage-y += nhlt.c
 
 smm-y += gpio.c
diff --git a/src/mainboard/google/reef/variants/baseboard/include/baseboard/variants.h b/src/mainboard/google/reef/variants/baseboard/include/baseboard/variants.h
index 84e6a30cf3..9f2ed0623c 100644
--- a/src/mainboard/google/reef/variants/baseboard/include/baseboard/variants.h
+++ b/src/mainboard/google/reef/variants/baseboard/include/baseboard/variants.h
@@ -40,4 +40,8 @@ size_t variant_memory_sku(void);
 /* Return ChromeOS gpio table and fill in number of entries. */
 const struct cros_gpio *variant_cros_gpios(size_t *num);
 
+/* Seed the NHLT tables with the board specific information. */
+struct nhlt;
+void variant_nhlt_init(struct nhlt *nhlt);
+
 #endif /* BASEBOARD_VARIANTS_H */
diff --git a/src/mainboard/google/reef/variants/baseboard/nhlt.c b/src/mainboard/google/reef/variants/baseboard/nhlt.c
new file mode 100644
index 0000000000..ef9ec6c9c5
--- /dev/null
+++ b/src/mainboard/google/reef/variants/baseboard/nhlt.c
@@ -0,0 +1,37 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2016 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 <baseboard/variants.h>
+#include <console/console.h>
+#include <nhlt.h>
+#include <soc/nhlt.h>
+
+void __attribute__((weak)) variant_nhlt_init(struct nhlt *nhlt)
+{
+	/* 2 Channel DMIC array. */
+	if (!nhlt_soc_add_dmic_array(nhlt, 2))
+		printk(BIOS_ERR, "Added 2CH DMIC array.\n");
+
+	/* Dialog for Headset codec.
+	 * Headset codec is bi-directional but uses the same configuration
+	 * settings for render and capture endpoints.
+	 */
+	if (!nhlt_soc_add_da7219(nhlt, AUDIO_LINK_SSP1))
+		printk(BIOS_ERR, "Added Dialog_7219 codec.\n");
+
+	/* MAXIM Smart Amps for left and right speakers. */
+	if (!nhlt_soc_add_max98357(nhlt, AUDIO_LINK_SSP5))
+		printk(BIOS_ERR, "Added Maxim_98357 codec.\n");
+}