[S] Change in coreboot[master]: mb/google/rex/var/screebo: Enable Cnvi BT Audio Offload feature

[Wentao Qin (Code Review)]

Wentao Qin has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/75609?usp=email )

Change subject: mb/google/rex/var/screebo: Enable Cnvi BT Audio Offload feature
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mb/google/rex/var/screebo: Enable Cnvi BT Audio Offload feature

This patch enables Cnvi BT Audio Offload feature and also
configures the virtual GPIO for CNVi Bluetooth I2S pads.

BUG=b:278169268
TEST=Verified BT offload feature on Sceebo

Change-Id: Ic050ca2f4f76a06e1abf3222ce36b567ba89f3a3
Signed-off-by: Wentao Qin 
---
M src/mainboard/google/rex/variants/screebo/gpio.c
M src/mainboard/google/rex/variants/screebo/overridetree.cb
2 files changed, 19 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/09/75609/1

diff --git a/src/mainboard/google/rex/variants/screebo/gpio.c b/src/mainboard/google/rex/variants/screebo/gpio.c
index f31506c..c9cef06 100644
--- a/src/mainboard/google/rex/variants/screebo/gpio.c
+++ b/src/mainboard/google/rex/variants/screebo/gpio.c
@@ -364,6 +364,22 @@
    PAD_NC(GPP_V22, NONE),
    /* GPP_V23 : [] ==> UCAM_RST_L */
    PAD_CFG_GPO(GPP_V23, 0, DEEP),
+	/* GPP_V30 : [] ==> BT_I2S_BCLK */
+	PAD_CFG_NF(GPP_VGPIO30, NONE, DEEP, NF2),
+	/* GPP_V31 : [] ==> BT_I2S_SYNC */
+	PAD_CFG_NF(GPP_VGPIO31, NONE, DEEP, NF2),
+	/* GPP_V32 : [] ==> BT_I2S_SDO */
+	PAD_CFG_NF(GPP_VGPIO32, NONE, DEEP, NF2),
+	/* GPP_V33 : [] ==> BT_I2S_SDI */
+	PAD_CFG_NF(GPP_VGPIO33, NONE, DEEP, NF2),
+	/* GPP_V34 : [] ==> SSP2_SCLK */
+	PAD_CFG_NF(GPP_VGPIO34, NONE, DEEP, NF1),
+	/* GPP_V35 : [] ==> SSP2_SFRM */
+	PAD_CFG_NF(GPP_VGPIO35, NONE, DEEP, NF1),
+	/* GPP_V36 : [] ==> SSP_TXD */
+	PAD_CFG_NF(GPP_VGPIO36, NONE, DEEP, NF1),
+	/* GPP_V37 : [] ==> SSP_RXD */
+	PAD_CFG_NF(GPP_VGPIO37, NONE, DEEP, NF1),
 };

/* Early pad configuration in bootblock */
diff --git a/src/mainboard/google/rex/variants/screebo/overridetree.cb b/src/mainboard/google/rex/variants/screebo/overridetree.cb
index aa99a6b..60eccc0 100644
--- a/src/mainboard/google/rex/variants/screebo/overridetree.cb
+++ b/src/mainboard/google/rex/variants/screebo/overridetree.cb
@@ -62,6 +62,9 @@
    # Temporary setting TCC of 90C = Tj max - Tcc
    register "tcc_offset" = "20"

+	# Enable the Cnvi BT Audio Offload
+	register "cnvi_bt_audio_offload" = "1"
+
    # Intel Common SoC Config
    #+-------------------+---------------------------+
    #| Field             |  Value                    |