| /* SPDX-License-Identifier: GPL-2.0-only */ |
| |
| #include <console/console.h> |
| #include <espi.h> |
| #include <stdint.h> |
| |
| void espi_show_slave_general_configuration(uint32_t config) |
| { |
| uint32_t io_mode; |
| uint32_t op_freq; |
| |
| printk(BIOS_DEBUG, "eSPI Slave configuration:\n"); |
| |
| if (config & ESPI_SLAVE_CRC_ENABLE) |
| printk(BIOS_DEBUG, " CRC checking enabled\n"); |
| |
| if (config & ESPI_SLAVE_RESP_MOD_ENABLE) |
| printk(BIOS_DEBUG, " Response modifier enabled\n"); |
| |
| if (config & ESPI_SLAVE_ALERT_MODE_PIN) |
| printk(BIOS_DEBUG, " Dedicated Alert# used to signal alert event\n"); |
| else |
| printk(BIOS_DEBUG, " IO bit1 pin used to signal alert event\n"); |
| |
| io_mode = config & ESPI_SLAVE_IO_MODE_SEL_MASK; |
| switch (io_mode) { |
| case ESPI_SLAVE_IO_MODE_SEL_SINGLE: |
| printk(BIOS_DEBUG, " eSPI single IO mode selected\n"); |
| break; |
| case ESPI_SLAVE_IO_MODE_SEL_DUAL: |
| printk(BIOS_DEBUG, " eSPI dual IO mode selected\n"); |
| break; |
| case ESPI_SLAVE_IO_MODE_SEL_QUAD: |
| printk(BIOS_DEBUG, " eSPI quad IO mode selected\n"); |
| break; |
| default: |
| printk(BIOS_DEBUG, " Error: Invalid eSPI IO mode selected\n"); |
| } |
| |
| io_mode = config & ESPI_SLAVE_IO_MODE_SUPP_MASK; |
| switch (io_mode) { |
| case ESPI_SLAVE_IO_MODE_SUPP_SINGLE_QUAD: |
| printk(BIOS_DEBUG, " eSPI quad and single IO modes supported\n"); |
| break; |
| case ESPI_SLAVE_IO_MODE_SUPP_SINGLE_DUAL: |
| printk(BIOS_DEBUG, " eSPI dual and single IO modes supported\n"); |
| break; |
| case ESPI_SLAVE_IO_MODE_SUPP_SINGLE_DUAL_QUAD: |
| printk(BIOS_DEBUG, " eSPI quad, dual and single IO modes supported\n"); |
| break; |
| default: |
| printk(BIOS_DEBUG, " Only eSPI single IO mode supported\n"); |
| } |
| |
| if (config & ESPI_SLAVE_OPEN_DRAIN_ALERT_SEL) |
| printk(BIOS_DEBUG, " Alert# pin is open-drain\n"); |
| else |
| printk(BIOS_DEBUG, " Alert# pin is driven\n"); |
| |
| op_freq = config & ESPI_SLAVE_OP_FREQ_SEL_MASK; |
| switch (op_freq) { |
| case ESPI_SLAVE_OP_FREQ_SEL_20_MHZ: |
| printk(BIOS_DEBUG, " eSPI 20MHz selected\n"); |
| break; |
| case ESPI_SLAVE_OP_FREQ_SEL_25_MHZ: |
| printk(BIOS_DEBUG, " eSPI 25MHz selected\n"); |
| break; |
| case ESPI_SLAVE_OP_FREQ_SEL_33_MHZ: |
| printk(BIOS_DEBUG, " eSPI 33MHz selected\n"); |
| break; |
| case ESPI_SLAVE_OP_FREQ_SEL_50_MHZ: |
| printk(BIOS_DEBUG, " eSPI 50MHz selected\n"); |
| break; |
| case ESPI_SLAVE_OP_FREQ_SEL_66_MHZ: |
| printk(BIOS_DEBUG, " eSPI 66MHz selected\n"); |
| break; |
| default: |
| printk(BIOS_DEBUG, " Error: Invalid eSPI frequency\n"); |
| } |
| |
| if (config & ESPI_SLAVE_OPEN_DRAIN_ALERT_SUPP) |
| printk(BIOS_DEBUG, " Open-drain Alert# pin supported\n"); |
| |
| op_freq = config & ESPI_SLAVE_OP_FREQ_SUPP_MASK; |
| switch (op_freq) { |
| case ESPI_SLAVE_OP_FREQ_SUPP_20_MHZ: |
| printk(BIOS_DEBUG, " eSPI up to 20MHz supported\n"); |
| break; |
| case ESPI_SLAVE_OP_FREQ_SUPP_25_MHZ: |
| printk(BIOS_DEBUG, " eSPI up to 25MHz supported\n"); |
| break; |
| case ESPI_SLAVE_OP_FREQ_SUPP_33_MHZ: |
| printk(BIOS_DEBUG, " eSPI up to 33MHz supported\n"); |
| break; |
| case ESPI_SLAVE_OP_FREQ_SUPP_50_MHZ: |
| printk(BIOS_DEBUG, " eSPI up to 50MHz supported\n"); |
| break; |
| case ESPI_SLAVE_OP_FREQ_SUPP_66_MHZ: |
| printk(BIOS_DEBUG, " eSPI up to 66MHz supported\n"); |
| break; |
| default: |
| printk(BIOS_DEBUG, " Error: Invalid eSPI frequency\n"); |
| } |
| |
| printk(BIOS_DEBUG, " Maximum Wait state: %d\n", |
| (config & ESPI_SLAVE_MAX_WAIT_MASK) >> ESPI_SLAVE_MAX_WAIT_SHIFT); |
| |
| if (config & ESPI_SLAVE_PERIPH_CH_SUPP) |
| printk(BIOS_DEBUG, " Peripheral Channel supported\n"); |
| if (config & ESPI_SLAVE_VW_CH_SUPP) |
| printk(BIOS_DEBUG, " Virtual Wire Channel supported\n"); |
| if (config & ESPI_SLAVE_OOB_CH_SUPP) |
| printk(BIOS_DEBUG, " OOB Channel supported\n"); |
| if (config & ESPI_SLAVE_FLASH_CH_SUPP) |
| printk(BIOS_DEBUG, " Flash Access Channel supported\n"); |
| printk(BIOS_DEBUG, "\n"); |
| } |
| |
| void espi_show_slave_peripheral_channel_configuration(uint32_t config) |
| { |
| uint32_t request_size; |
| uint32_t payload_size; |
| |
| printk(BIOS_DEBUG, "eSPI Slave Peripheral configuration:\n"); |
| |
| printk(BIOS_DEBUG, " Peripheral Channel Maximum Read Request Size: "); |
| request_size = config & ESPI_SLAVE_PERIPH_MAX_READ_SIZE_MASK; |
| switch (request_size) { |
| case ESPI_SLAVE_PERIPH_MAX_READ_64B: |
| printk(BIOS_DEBUG, "64 bytes\n"); |
| break; |
| case ESPI_SLAVE_PERIPH_MAX_READ_128B: |
| printk(BIOS_DEBUG, "128 bytes\n"); |
| break; |
| case ESPI_SLAVE_PERIPH_MAX_READ_256B: |
| printk(BIOS_DEBUG, "256 bytes\n"); |
| break; |
| case ESPI_SLAVE_PERIPH_MAX_READ_512B: |
| printk(BIOS_DEBUG, "512 bytes\n"); |
| break; |
| case ESPI_SLAVE_PERIPH_MAX_READ_1024B: |
| printk(BIOS_DEBUG, "1024 bytes\n"); |
| break; |
| case ESPI_SLAVE_PERIPH_MAX_READ_2048B: |
| printk(BIOS_DEBUG, "2048 bytes\n"); |
| break; |
| case ESPI_SLAVE_PERIPH_MAX_READ_4096B: |
| printk(BIOS_DEBUG, "4096 bytes\n"); |
| break; |
| default: |
| printk(BIOS_DEBUG, "Unknown\n"); |
| } |
| |
| printk(BIOS_DEBUG, " Peripheral Channel Maximum Payload Size Selected: "); |
| payload_size = config & ESPI_SLAVE_PERIPH_MAX_PAYLOAD_SIZE_SEL_MASK; |
| switch (payload_size) { |
| case ESPI_SLAVE_PERIPH_MAX_PAYLOAD_SIZE_SEL_64B: |
| printk(BIOS_DEBUG, "64 bytes\n"); |
| break; |
| case ESPI_SLAVE_PERIPH_MAX_PAYLOAD_SIZE_SEL_128B: |
| printk(BIOS_DEBUG, "128 bytes\n"); |
| break; |
| case ESPI_SLAVE_PERIPH_MAX_PAYLOAD_SIZE_SEL_256B: |
| printk(BIOS_DEBUG, "256 bytes\n"); |
| break; |
| default: |
| printk(BIOS_DEBUG, "Unknown\n"); |
| } |
| |
| printk(BIOS_DEBUG, " Peripheral Channel Maximum Payload Size Supported: "); |
| payload_size = config & ESPI_SLAVE_PERIPH_MAX_PAYLOAD_SIZE_SUPP_MASK; |
| switch (payload_size) { |
| case ESPI_SLAVE_PERIPH_MAX_PAYLOAD_SIZE_SUPP_64B: |
| printk(BIOS_DEBUG, "64 bytes\n"); |
| break; |
| case ESPI_SLAVE_PERIPH_MAX_PAYLOAD_SIZE_SUPP_128B: |
| printk(BIOS_DEBUG, "128 bytes\n"); |
| break; |
| case ESPI_SLAVE_PERIPH_MAX_PAYLOAD_SIZE_SUPP_256B: |
| printk(BIOS_DEBUG, "256 bytes\n"); |
| break; |
| default: |
| printk(BIOS_DEBUG, "Unknown\n"); |
| } |
| |
| printk(BIOS_DEBUG, " Bus master: "); |
| if (config & ESPI_SLAVE_PERIPH_BUS_MASTER_ENABLE) |
| printk(BIOS_DEBUG, "enabled\n"); |
| else |
| printk(BIOS_DEBUG, "disabled\n"); |
| |
| printk(BIOS_DEBUG, " Peripheral Channel: "); |
| if (config & ESPI_SLAVE_CHANNEL_READY) |
| printk(BIOS_DEBUG, "ready\n"); |
| else |
| printk(BIOS_DEBUG, "not ready\n"); |
| |
| printk(BIOS_DEBUG, " Peripheral Channel: "); |
| if (config & ESPI_SLAVE_CHANNEL_ENABLE) |
| printk(BIOS_DEBUG, "enabled\n"); |
| else |
| printk(BIOS_DEBUG, "disabled\n"); |
| } |