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mb/google/brya/var/kano: Enable BT offload support

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Enable the CnviBtAudioOffload UPD and program the corresponding
BT VPGIOs.

BUG=b:202913826
TEST=emerge-brya coreboot and verify it builds without error.

Signed-off-by: David Wu <david_wu@quanta.corp-partner.google.com>
Change-Id: Id81cba82742f552c098ec3719a0b453b752dc5c5
Reviewed-on: https://review.coreboot.org/c/coreboot/+/58415
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
This commit is contained in:
David Wu 2021-10-18 17:32:53 +08:00 committed by Felix Held
parent ff6416f737
commit 5a76c79791
3 changed files with 39 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
src/mainboard/google/brya/variants/kano/Makefile.inc
View File

@ -4,5 +4,5 @@ bootblock-y += gpio.c
romstage-y += gpio.c
ramstage-y += gpio.c
ramstage-$(CONFIG_FW_CONFIG) += variant.c
ramstage-$(CONFIG_FW_CONFIG) += fw_config.c

28
src/mainboard/google/brya/variants/kano/fw_config.c
View File

@ -41,12 +41,35 @@ static const struct pad_config i2s_disable_pads[] = {
PAD_NC(GPP_S3, NONE),
};
static const struct pad_config bt_i2s_enable_pads[] = {
PAD_CFG_NF(GPP_VGPIO_30, NONE, DEEP, NF3), /* BT_I2S_BCLK */
PAD_CFG_NF(GPP_VGPIO_31, NONE, DEEP, NF3), /* BT_I2S_SYNC */
PAD_CFG_NF(GPP_VGPIO_32, NONE, DEEP, NF3), /* BT_I2S_SDO */
PAD_CFG_NF(GPP_VGPIO_33, NONE, DEEP, NF3), /* BT_I2S_SDI */
PAD_CFG_NF(GPP_VGPIO_34, NONE, DEEP, NF1), /* SSP2_SCLK */
PAD_CFG_NF(GPP_VGPIO_35, NONE, DEEP, NF1), /* SSP2_SFRM */
PAD_CFG_NF(GPP_VGPIO_36, NONE, DEEP, NF1), /* SSP_TXD */
PAD_CFG_NF(GPP_VGPIO_37, NONE, DEEP, NF1), /* SSP_RXD */
};
static const struct pad_config bt_i2s_disable_pads[] = {
PAD_NC(GPP_VGPIO_30, NONE),
PAD_NC(GPP_VGPIO_31, NONE),
PAD_NC(GPP_VGPIO_32, NONE),
PAD_NC(GPP_VGPIO_33, NONE),
PAD_NC(GPP_VGPIO_34, NONE),
PAD_NC(GPP_VGPIO_35, NONE),
PAD_NC(GPP_VGPIO_36, NONE),
PAD_NC(GPP_VGPIO_37, NONE),
};
static void fw_config_handle(void *unused)
{
if (!fw_config_is_provisioned() || fw_config_probe(FW_CONFIG(AUDIO, AUDIO_UNKNOWN))) {
printk(BIOS_INFO, "Disable audio related GPIO pins.\n");
gpio_configure_pads(i2s_disable_pads, ARRAY_SIZE(i2s_disable_pads));
gpio_configure_pads(dmic_disable_pads, ARRAY_SIZE(dmic_disable_pads));
gpio_configure_pads(bt_i2s_disable_pads, ARRAY_SIZE(bt_i2s_disable_pads));
return;
}
@ -54,6 +77,11 @@ static void fw_config_handle(void *unused)
printk(BIOS_INFO, "Configure audio over I2S with MAX98373 NAU88L25B.\n");
gpio_configure_pads(dmic_enable_pads, ARRAY_SIZE(dmic_enable_pads));
gpio_configure_pads(i2s_enable_pads, ARRAY_SIZE(i2s_enable_pads));
printk(BIOS_INFO, "BT offload enabled\n");
gpio_configure_pads(bt_i2s_enable_pads, ARRAY_SIZE(bt_i2s_enable_pads));
} else {
printk(BIOS_INFO, "BT offload disabled\n");
gpio_configure_pads(bt_i2s_disable_pads, ARRAY_SIZE(bt_i2s_disable_pads));
}
}
BOOT_STATE_INIT_ENTRY(BS_DEV_ENABLE, BS_ON_ENTRY, fw_config_handle, NULL);

10
src/mainboard/google/brya/variants/kano/variant.c Normal file
View File

@ -0,0 +1,10 @@
/* SPDX-License-Identifier: GPL-2.0-only */
#include <chip.h>
#include <fw_config.h>
#include <baseboard/variants.h>
void variant_update_soc_chip_config(struct soc_intel_alderlake_config *config)
{
config->CnviBtAudioOffload = fw_config_probe(FW_CONFIG(AUDIO, MAX98373_NAU88L25B_I2S));
}