Adam Liu has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/59610 )
Change subject: mainboard/google/brya/variants/brask: Enable audio driver in bios-stage for brask ......................................................................
mainboard/google/brya/variants/brask: Enable audio driver in bios-stage for brask
Probe audio driver and set audio GPIO for audio driver
TEST= BUG=
Signed-off-by: Adam Liu adam.liu@quanta.corp-partner.google.com Change-Id: I05c5d734ab9cd9a894084398decb5e3bac45ddf2 --- A src/mainboard/google/brya/variants/brask/fw_config.c M src/mainboard/google/brya/variants/brask/overridetree.cb 2 files changed, 62 insertions(+), 1 deletion(-)
git pull ssh://review.coreboot.org:29418/coreboot refs/changes/10/59610/1
diff --git a/src/mainboard/google/brya/variants/brask/fw_config.c b/src/mainboard/google/brya/variants/brask/fw_config.c new file mode 100644 index 0000000..1d684d4 --- /dev/null +++ b/src/mainboard/google/brya/variants/brask/fw_config.c @@ -0,0 +1,52 @@ +/* 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_R4, NONE, DEEP, NF3), /* DMIC_CLK0_R */ + PAD_CFG_NF(GPP_R5, NONE, DEEP, NF3), /* DMIC_DATA0_R */ + 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_R4, NONE), + PAD_NC(GPP_R5, NONE), + 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 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)); + return; + } + + if (fw_config_probe(FW_CONFIG(AUDIO, MAX98373_NAU88L25B_I2S))) { + 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)); + } +} + +BOOT_STATE_INIT_ENTRY(BS_DEV_ENABLE, BS_ON_ENTRY, fw_config_handle, NULL); diff --git a/src/mainboard/google/brya/variants/brask/overridetree.cb b/src/mainboard/google/brya/variants/brask/overridetree.cb index 3805666..1d7b791 100644 --- a/src/mainboard/google/brya/variants/brask/overridetree.cb +++ b/src/mainboard/google/brya/variants/brask/overridetree.cb @@ -1,3 +1,10 @@ +fw_config + field AUDIO 1 3 + option AUDIO_UNKNOWN 0 + option NAU88L25B_I2S 1 + end +end + chip soc/intel/alderlake device domain 0 on device ref dtt on @@ -127,7 +134,9 @@ 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_rp8 on