David Wu | e7f4493 | 2021-08-17 20:05:51 +0800 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
| 2 | |
| 3 | #include <bootstate.h> |
| 4 | #include <console/console.h> |
| 5 | #include <fw_config.h> |
| 6 | #include <gpio.h> |
| 7 | |
| 8 | static const struct pad_config dmic_enable_pads[] = { |
David Wu | 7181cd2 | 2021-08-27 17:49:05 +0800 | [diff] [blame] | 9 | PAD_CFG_NF(GPP_R4, NONE, DEEP, NF3), /* DMIC_CLK0_R */ |
| 10 | PAD_CFG_NF(GPP_R5, NONE, DEEP, NF3), /* DMIC_DATA0_R */ |
David Wu | a3260fd | 2021-11-03 12:31:06 +0800 | [diff] [blame] | 11 | PAD_CFG_NF(GPP_R6, NONE, DEEP, NF3), /* DMIC_CLK1_R */ |
| 12 | PAD_CFG_NF(GPP_R7, NONE, DEEP, NF3), /* DMIC_DATA1_R */ |
David Wu | e7f4493 | 2021-08-17 20:05:51 +0800 | [diff] [blame] | 13 | }; |
| 14 | |
| 15 | static const struct pad_config dmic_disable_pads[] = { |
David Wu | 7181cd2 | 2021-08-27 17:49:05 +0800 | [diff] [blame] | 16 | PAD_NC(GPP_R4, NONE), |
| 17 | PAD_NC(GPP_R5, NONE), |
| 18 | PAD_NC(GPP_R6, NONE), |
| 19 | PAD_NC(GPP_R7, NONE), |
David Wu | e7f4493 | 2021-08-17 20:05:51 +0800 | [diff] [blame] | 20 | }; |
| 21 | |
| 22 | static const struct pad_config i2s_enable_pads[] = { |
| 23 | PAD_CFG_NF(GPP_R0, NONE, DEEP, NF2), /* I2S_HP_SCLK_R */ |
| 24 | PAD_CFG_NF(GPP_R1, NONE, DEEP, NF2), /* I2S_HP_SFRM_R */ |
| 25 | PAD_CFG_NF(GPP_R2, DN_20K, DEEP, NF2), /* I2S_PCH_TX_HP_RX_STRAP */ |
| 26 | PAD_CFG_NF(GPP_R3, NONE, DEEP, NF2), /* I2S_PCH_RX_HP_TX */ |
David Wu | a3260fd | 2021-11-03 12:31:06 +0800 | [diff] [blame] | 27 | PAD_CFG_NF(GPP_S0, NONE, DEEP, NF4), /* I2S_SPKR_SCLK_R */ |
| 28 | PAD_CFG_NF(GPP_S1, NONE, DEEP, NF4), /* I2S_SPKR_SFRM_R */ |
| 29 | PAD_CFG_NF(GPP_S2, NONE, DEEP, NF4), /* I2S_PCH_TX_SPKR_RX_R */ |
| 30 | PAD_CFG_NF(GPP_S3, NONE, DEEP, NF4), /* I2S_PCH_RX_SPKR_TX */ |
David Wu | e7f4493 | 2021-08-17 20:05:51 +0800 | [diff] [blame] | 31 | }; |
| 32 | |
| 33 | static const struct pad_config i2s_disable_pads[] = { |
| 34 | PAD_NC(GPP_R0, NONE), |
| 35 | PAD_NC(GPP_R1, NONE), |
| 36 | PAD_NC(GPP_R2, NONE), |
| 37 | PAD_NC(GPP_R3, NONE), |
David Wu | 7181cd2 | 2021-08-27 17:49:05 +0800 | [diff] [blame] | 38 | PAD_NC(GPP_S0, NONE), |
| 39 | PAD_NC(GPP_S1, NONE), |
| 40 | PAD_NC(GPP_S2, NONE), |
| 41 | PAD_NC(GPP_S3, NONE), |
David Wu | e7f4493 | 2021-08-17 20:05:51 +0800 | [diff] [blame] | 42 | }; |
| 43 | |
David Wu | 5a76c79 | 2021-10-18 17:32:53 +0800 | [diff] [blame] | 44 | static const struct pad_config bt_i2s_enable_pads[] = { |
| 45 | PAD_CFG_NF(GPP_VGPIO_30, NONE, DEEP, NF3), /* BT_I2S_BCLK */ |
| 46 | PAD_CFG_NF(GPP_VGPIO_31, NONE, DEEP, NF3), /* BT_I2S_SYNC */ |
| 47 | PAD_CFG_NF(GPP_VGPIO_32, NONE, DEEP, NF3), /* BT_I2S_SDO */ |
| 48 | PAD_CFG_NF(GPP_VGPIO_33, NONE, DEEP, NF3), /* BT_I2S_SDI */ |
| 49 | PAD_CFG_NF(GPP_VGPIO_34, NONE, DEEP, NF1), /* SSP2_SCLK */ |
| 50 | PAD_CFG_NF(GPP_VGPIO_35, NONE, DEEP, NF1), /* SSP2_SFRM */ |
| 51 | PAD_CFG_NF(GPP_VGPIO_36, NONE, DEEP, NF1), /* SSP_TXD */ |
| 52 | PAD_CFG_NF(GPP_VGPIO_37, NONE, DEEP, NF1), /* SSP_RXD */ |
| 53 | }; |
| 54 | |
| 55 | static const struct pad_config bt_i2s_disable_pads[] = { |
| 56 | PAD_NC(GPP_VGPIO_30, NONE), |
| 57 | PAD_NC(GPP_VGPIO_31, NONE), |
| 58 | PAD_NC(GPP_VGPIO_32, NONE), |
| 59 | PAD_NC(GPP_VGPIO_33, NONE), |
| 60 | PAD_NC(GPP_VGPIO_34, NONE), |
| 61 | PAD_NC(GPP_VGPIO_35, NONE), |
| 62 | PAD_NC(GPP_VGPIO_36, NONE), |
| 63 | PAD_NC(GPP_VGPIO_37, NONE), |
| 64 | }; |
| 65 | |
David Wu | e7f4493 | 2021-08-17 20:05:51 +0800 | [diff] [blame] | 66 | static void fw_config_handle(void *unused) |
| 67 | { |
| 68 | if (!fw_config_is_provisioned() || fw_config_probe(FW_CONFIG(AUDIO, AUDIO_UNKNOWN))) { |
| 69 | printk(BIOS_INFO, "Disable audio related GPIO pins.\n"); |
| 70 | gpio_configure_pads(i2s_disable_pads, ARRAY_SIZE(i2s_disable_pads)); |
| 71 | gpio_configure_pads(dmic_disable_pads, ARRAY_SIZE(dmic_disable_pads)); |
David Wu | 5a76c79 | 2021-10-18 17:32:53 +0800 | [diff] [blame] | 72 | gpio_configure_pads(bt_i2s_disable_pads, ARRAY_SIZE(bt_i2s_disable_pads)); |
David Wu | e7f4493 | 2021-08-17 20:05:51 +0800 | [diff] [blame] | 73 | return; |
| 74 | } |
| 75 | |
| 76 | if (fw_config_probe(FW_CONFIG(AUDIO, MAX98373_NAU88L25B_I2S))) { |
| 77 | printk(BIOS_INFO, "Configure audio over I2S with MAX98373 NAU88L25B.\n"); |
| 78 | gpio_configure_pads(dmic_enable_pads, ARRAY_SIZE(dmic_enable_pads)); |
| 79 | gpio_configure_pads(i2s_enable_pads, ARRAY_SIZE(i2s_enable_pads)); |
David Wu | 5a76c79 | 2021-10-18 17:32:53 +0800 | [diff] [blame] | 80 | printk(BIOS_INFO, "BT offload enabled\n"); |
| 81 | gpio_configure_pads(bt_i2s_enable_pads, ARRAY_SIZE(bt_i2s_enable_pads)); |
| 82 | } else { |
| 83 | printk(BIOS_INFO, "BT offload disabled\n"); |
| 84 | gpio_configure_pads(bt_i2s_disable_pads, ARRAY_SIZE(bt_i2s_disable_pads)); |
David Wu | e7f4493 | 2021-08-17 20:05:51 +0800 | [diff] [blame] | 85 | } |
| 86 | } |
| 87 | BOOT_STATE_INIT_ENTRY(BS_DEV_ENABLE, BS_ON_ENTRY, fw_config_handle, NULL); |