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mb/google/brya/variants/brask: Enable Bluetooth offload support 

Add fw_config NAU88L25B_I2S field, I2S2 configuration and
enabling CnviBtAudioOffload UPD bit.

BUG=none
TEST=temerge-brask coreboot

Signed-off-by: Mac Chiang <mac.chiang@intel.com>
Change-Id: Id5da8c5c471be176bc0fe1eda4da7faf8ed2e8d2
Reviewed-on: https://review.coreboot.org/c/coreboot/+/61404
Reviewed-by: Zhuohao Lee <zhuohao@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Mac Chiang 2022-01-26 03:34:49 -05:00 committed by Felix Held
parent 1f6b7a273b
commit fd07fa20da
4 changed files with 64 additions and 0 deletions
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3
src/mainboard/google/brya/variants/brask/Makefile.inc
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@ -5,3 +5,6 @@ romstage-y += gpio.c
ramstage-y += gpio.c
ramstage-y += ramstage.c
ramstage-$(CONFIG_FW_CONFIG) += fw_config.c
ramstage-$(CONFIG_FW_CONFIG) += variant.c

44
src/mainboard/google/brya/variants/brask/fw_config.c Normal file
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@ -0,0 +1,44 @@
/* SPDX-License-Identifier: GPL-2.0-only */
#include <bootstate.h>
#include <console/console.h>
#include <fw_config.h>
#include <gpio.h>
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 BT offload audio related GPIO pins.\n");
gpio_configure_pads(bt_i2s_disable_pads, ARRAY_SIZE(bt_i2s_disable_pads));
return;
}
if (fw_config_probe(FW_CONFIG(AUDIO, NAU88L25B_I2S))) {
printk(BIOS_INFO, "BT offload enabled over I2S with NAU88L25B\n");
gpio_configure_pads(bt_i2s_enable_pads, ARRAY_SIZE(bt_i2s_enable_pads));
}
}
BOOT_STATE_INIT_ENTRY(BS_DEV_ENABLE, BS_ON_ENTRY, fw_config_handle, NULL);

7
src/mainboard/google/brya/variants/brask/overridetree.cb
View File

@ -1,3 +1,10 @@
fw_config
field AUDIO 0 2
option AUDIO_UNKNOWN 0
option NAU88L25B_I2S 1
end
end
chip soc/intel/alderlake
device domain 0 on
device ref dtt on

10
src/mainboard/google/brya/variants/brask/variant.c Normal file
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@ -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, NAU88L25B_I2S));
}