| /* SPDX-License-Identifier: GPL-2.0-only */ |
| |
| #include <console/console.h> |
| #include <device/i2c_simple.h> |
| #include <gpio.h> |
| #include <soc/platform_descriptors.h> |
| #include <types.h> |
| |
| /* TODO: Update for birman */ |
| |
| static const fsp_dxio_descriptor birman_dxio_descriptors[] = { |
| { |
| .engine_type = PCIE_ENGINE, |
| .port_present = true, |
| .start_logical_lane = 0, |
| .end_logical_lane = 0, |
| .device_number = 2, |
| .function_number = 1, |
| .link_speed_capability = GEN3, |
| .turn_off_unused_lanes = true, |
| .link_aspm = 2, |
| .link_hotplug = 3, |
| .clk_req = CLK_REQ3, |
| }, |
| { |
| .engine_type = PCIE_ENGINE, |
| .port_present = true, |
| .start_logical_lane = 1, |
| .end_logical_lane = 1, |
| .device_number = 2, |
| .function_number = 2, |
| .link_speed_capability = GEN3, |
| .turn_off_unused_lanes = true, |
| .link_aspm = 2, |
| .link_hotplug = 3, |
| .clk_req = CLK_REQ1, |
| }, |
| { |
| .engine_type = PCIE_ENGINE, |
| .port_present = true, |
| .start_logical_lane = 2, |
| .end_logical_lane = 3, |
| .device_number = 2, |
| .function_number = 3, |
| .link_speed_capability = GEN3, |
| .turn_off_unused_lanes = true, |
| .link_aspm = 2, |
| .link_hotplug = 3, |
| .gpio_group_id = GPIO_27, |
| .clk_req = CLK_REQ0, |
| }, |
| }; |
| |
| static fsp_ddi_descriptor birman_ddi_descriptors[] = { |
| { /* DDI0 - eDP */ |
| .connector_type = DDI_EDP, |
| .aux_index = DDI_AUX1, |
| .hdp_index = DDI_HDP1 |
| }, |
| { /* DDI1 - HDMI/DP */ |
| .connector_type = DDI_HDMI, |
| .aux_index = DDI_AUX2, |
| .hdp_index = DDI_HDP2 |
| }, |
| { /* DDI2 - DP (type C) */ |
| .connector_type = DDI_DP, |
| .aux_index = DDI_AUX3, |
| .hdp_index = DDI_HDP3, |
| }, |
| { /* DDI3 - DP (type C) */ |
| .connector_type = DDI_DP, |
| .aux_index = DDI_AUX4, |
| .hdp_index = DDI_HDP4, |
| }, |
| { /* DDI4 - unused */ |
| .connector_type = DDI_UNUSED_TYPE, |
| .aux_index = DDI_AUX5, |
| .hdp_index = DDI_HDP5, |
| } |
| }; |
| |
| static uint8_t get_ddi1_type(void) |
| { |
| const uint8_t eeprom_i2c_bus = 2; |
| const uint8_t eeprom_i2c_address = 0x55; |
| const uint16_t eeprom_connector_type_offset = 2; |
| uint8_t eeprom_connector_type_data[2]; |
| uint16_t connector_type; |
| |
| if (i2c_2ba_read_bytes(eeprom_i2c_bus, eeprom_i2c_address, |
| eeprom_connector_type_offset, eeprom_connector_type_data, |
| sizeof(eeprom_connector_type_data))) { |
| printk(BIOS_NOTICE, |
| "Display connector type couldn't be determined. Disabling DDI1.\n"); |
| return DDI_UNUSED_TYPE; |
| } |
| |
| connector_type = eeprom_connector_type_data[1] | eeprom_connector_type_data[0] << 8; |
| |
| switch (connector_type) { |
| case 0x0c: |
| printk(BIOS_DEBUG, "Configuring DDI1 as HDMI.\n"); |
| return DDI_HDMI; |
| case 0x13: |
| printk(BIOS_DEBUG, "Configuring DDI1 as DP.\n"); |
| return DDI_DP; |
| case 0x14: |
| printk(BIOS_DEBUG, "Configuring DDI1 as eDP.\n"); |
| return DDI_EDP; |
| case 0x17: |
| printk(BIOS_DEBUG, "Configuring DDI1 as USB-C.\n"); |
| return DDI_DP_W_TYPEC; |
| default: |
| printk(BIOS_WARNING, "Unexpected display connector type %x. Disabling DDI1.\n", |
| connector_type); |
| return DDI_UNUSED_TYPE; |
| } |
| } |
| |
| void mainboard_get_dxio_ddi_descriptors( |
| const fsp_dxio_descriptor **dxio_descs, size_t *dxio_num, |
| const fsp_ddi_descriptor **ddi_descs, size_t *ddi_num) |
| { |
| birman_ddi_descriptors[1].connector_type = get_ddi1_type(); |
| |
| *dxio_descs = birman_dxio_descriptors; |
| *dxio_num = ARRAY_SIZE(birman_dxio_descriptors); |
| *ddi_descs = birman_ddi_descriptors; |
| *ddi_num = ARRAY_SIZE(birman_ddi_descriptors); |
| } |