diff options
Diffstat (limited to 'src/mainboard/google/volteer/fw_config.c')
| -rw-r--r-- | src/mainboard/google/volteer/fw_config.c | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/src/mainboard/google/volteer/fw_config.c b/src/mainboard/google/volteer/fw_config.c new file mode 100644 index 0000000000..61e20f4cf8 --- /dev/null +++ b/src/mainboard/google/volteer/fw_config.c @@ -0,0 +1,82 @@ +/* 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_S4, NONE, DEEP, NF2), /* DMIC_CLK1 */ + PAD_CFG_NF(GPP_S5, NONE, DEEP, NF2), /* DMIC_DATA1 */ + PAD_CFG_NF(GPP_S6, NONE, DEEP, NF2), /* DMIC_CLK0 */ + PAD_CFG_NF(GPP_S7, NONE, DEEP, NF2), /* DMIC_DATA0 */ +}; + +static const struct pad_config dmic_disable_pads[] = { + PAD_NC(GPP_S4, NONE), + PAD_NC(GPP_S5, NONE), + PAD_NC(GPP_S6, NONE), + PAD_NC(GPP_S7, NONE), +}; + +static const struct pad_config sndw_enable_pads[] = { + PAD_CFG_NF(GPP_S0, NONE, DEEP, NF1), /* SNDW0_CLK */ + PAD_CFG_NF(GPP_S1, NONE, DEEP, NF1), /* SNDW0_DATA */ + PAD_CFG_NF(GPP_S2, NONE, DEEP, NF1), /* SNDW1_CLK */ + PAD_CFG_NF(GPP_S3, NONE, DEEP, NF1), /* SNDW1_DATA */ +}; + +static const struct pad_config sndw_disable_pads[] = { + PAD_NC(GPP_S0, NONE), + PAD_NC(GPP_S1, NONE), + PAD_NC(GPP_S2, NONE), + PAD_NC(GPP_S3, NONE), +}; + +static const struct pad_config i2s_enable_pads[] = { + PAD_CFG_NF(GPP_A23, NONE, DEEP, NF1), /* I2S1_SCLK */ + PAD_CFG_NF(GPP_D19, NONE, DEEP, NF1), /* I2S_MCLK1 */ + PAD_CFG_NF(GPP_R0, NONE, DEEP, NF2), /* I2S0_SCLK */ + PAD_CFG_NF(GPP_R1, NONE, DEEP, NF2), /* I2S0_SFRM */ + PAD_CFG_NF(GPP_R2, DN_20K, DEEP, NF2), /* I2S0_TXD */ + PAD_CFG_NF(GPP_R3, NONE, DEEP, NF2), /* I2S0_RXD */ + PAD_CFG_NF(GPP_R5, NONE, DEEP, NF2), /* I2S1_RXD */ + PAD_CFG_NF(GPP_R6, NONE, DEEP, NF2), /* I2S1_TXD */ + PAD_CFG_NF(GPP_R7, NONE, DEEP, NF2), /* I2S1_SFRM */ +}; + +static const struct pad_config i2s_disable_pads[] = { + PAD_NC(GPP_A23, NONE), + PAD_NC(GPP_D19, NONE), + PAD_NC(GPP_R0, NONE), + PAD_NC(GPP_R1, NONE), + PAD_NC(GPP_R2, DN_20K), + PAD_NC(GPP_R3, NONE), + PAD_NC(GPP_R5, NONE), + PAD_NC(GPP_R6, NONE), + PAD_NC(GPP_R7, NONE), +}; + +static void fw_config_handle(void *unused) +{ + if (fw_config_probe(FW_CONFIG(AUDIO, NONE))) { + printk(BIOS_INFO, "Configure GPIOs for no audio.\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(sndw_disable_pads, ARRAY_SIZE(sndw_disable_pads)); + } + if (fw_config_probe(FW_CONFIG(AUDIO, MAX98373_ALC5682_SNDW))) { + printk(BIOS_INFO, "Configure GPIOs for SoundWire audio.\n"); + gpio_configure_pads(sndw_enable_pads, ARRAY_SIZE(sndw_enable_pads)); + gpio_configure_pads(dmic_enable_pads, ARRAY_SIZE(dmic_enable_pads)); + gpio_configure_pads(i2s_disable_pads, ARRAY_SIZE(i2s_disable_pads)); + } + if (fw_config_probe(FW_CONFIG(AUDIO, MAX98357_ALC5682I_I2S)) || + fw_config_probe(FW_CONFIG(AUDIO, MAX98373_ALC5682I_I2S))) { + printk(BIOS_INFO, "Configure GPIOs for I2S audio.\n"); + gpio_configure_pads(i2s_enable_pads, ARRAY_SIZE(i2s_enable_pads)); + gpio_configure_pads(dmic_enable_pads, ARRAY_SIZE(dmic_enable_pads)); + gpio_configure_pads(sndw_disable_pads, ARRAY_SIZE(sndw_disable_pads)); + } +} +BOOT_STATE_INIT_ENTRY(BS_DEV_ENABLE, BS_ON_ENTRY, fw_config_handle, NULL); |