diff options
Diffstat (limited to 'src/mainboard/google')
4 files changed, 98 insertions, 1 deletions
diff --git a/src/mainboard/google/brya/variants/kuldax/Makefile.inc b/src/mainboard/google/brya/variants/kuldax/Makefile.inc index d38141ca24..77aca987c4 100644 --- a/src/mainboard/google/brya/variants/kuldax/Makefile.inc +++ b/src/mainboard/google/brya/variants/kuldax/Makefile.inc @@ -4,3 +4,5 @@ bootblock-y += gpio.c romstage-y += gpio.c ramstage-y += gpio.c +ramstage-$(CONFIG_FW_CONFIG) += fw_config.c +ramstage-$(CONFIG_FW_CONFIG) += variant.c diff --git a/src/mainboard/google/brya/variants/kuldax/fw_config.c b/src/mainboard/google/brya/variants/kuldax/fw_config.c new file mode 100644 index 0000000000..42613af163 --- /dev/null +++ b/src/mainboard/google/brya/variants/kuldax/fw_config.c @@ -0,0 +1,75 @@ +/* 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 dmic_enable_pads[] = { + PAD_CFG_NF(GPP_R6, NONE, DEEP, NF3), /* DMIC_CLK1_R */ + PAD_CFG_NF(GPP_R7, NONE, DEEP, NF3), /* DMIC_DATA1_R */ +}; + +static const struct pad_config dmic_disable_pads[] = { + PAD_NC(GPP_R6, NONE), + PAD_NC(GPP_R7, NONE), +}; + +static const struct pad_config i2s_enable_pads[] = { + PAD_CFG_NF(GPP_R0, NONE, DEEP, NF2), /* I2S_HP_SCLK_R */ + PAD_CFG_NF(GPP_R1, NONE, DEEP, NF2), /* I2S_HP_SFRM_R */ + PAD_CFG_NF(GPP_R2, DN_20K, DEEP, NF2), /* I2S_PCH_TX_HP_RX_STRAP */ + PAD_CFG_NF(GPP_R3, NONE, DEEP, NF2), /* I2S_PCH_RX_HP_TX */ +}; + +static const struct pad_config i2s_disable_pads[] = { + PAD_NC(GPP_R0, NONE), + PAD_NC(GPP_R1, NONE), + PAD_NC(GPP_R2, NONE), + PAD_NC(GPP_R3, 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; + } + + if (fw_config_probe(FW_CONFIG(AUDIO, NAU88L25B_I2S))) { + printk(BIOS_INFO, "Configure audio over I2S with 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); diff --git a/src/mainboard/google/brya/variants/kuldax/overridetree.cb b/src/mainboard/google/brya/variants/kuldax/overridetree.cb index a885d699af..a8fa978a68 100644 --- a/src/mainboard/google/brya/variants/kuldax/overridetree.cb +++ b/src/mainboard/google/brya/variants/kuldax/overridetree.cb @@ -1,3 +1,10 @@ +fw_config + field AUDIO 0 2 + option AUDIO_UNKNOWN 0 + option NAU88L25B_I2S 1 + end +end + chip soc/intel/alderlake register "serial_io_gspi_mode" = "{ [PchSerialIoIndexGSPI0] = PchSerialIoDisabled, @@ -126,7 +133,9 @@ chip soc/intel/alderlake register "short_key_debounce" = "2" # 100ms register "jack_insert_debounce" = "7" # 512ms register "jack_eject_debounce" = "7" # 512ms - device i2c 1a on end + device i2c 1a on + probe AUDIO NAU88L25B_I2S + end end end device ref pcie_rp7 on diff --git a/src/mainboard/google/brya/variants/kuldax/variant.c b/src/mainboard/google/brya/variants/kuldax/variant.c new file mode 100644 index 0000000000..04105db2ea --- /dev/null +++ b/src/mainboard/google/brya/variants/kuldax/variant.c @@ -0,0 +1,11 @@ +/* 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->cnvi_bt_audio_offload = fw_config_probe(FW_CONFIG(AUDIO, + NAU88L25B_I2S)); +} |