Furquan Shaikh | 5cc41f2 | 2020-05-11 12:11:27 -0700 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
Furquan Shaikh | 5cc41f2 | 2020-05-11 12:11:27 -0700 | [diff] [blame] | 2 | |
| 3 | #include <console/console.h> |
| 4 | #include <espi.h> |
| 5 | #include <stdint.h> |
| 6 | |
| 7 | void espi_show_slave_general_configuration(uint32_t config) |
| 8 | { |
| 9 | uint32_t io_mode; |
| 10 | uint32_t op_freq; |
| 11 | |
| 12 | printk(BIOS_DEBUG, "eSPI Slave configuration:\n"); |
| 13 | |
| 14 | if (config & ESPI_SLAVE_CRC_ENABLE) |
| 15 | printk(BIOS_DEBUG, " CRC checking enabled\n"); |
| 16 | |
| 17 | if (config & ESPI_SLAVE_RESP_MOD_ENABLE) |
| 18 | printk(BIOS_DEBUG, " Response modifier enabled\n"); |
| 19 | |
| 20 | if (config & ESPI_SLAVE_ALERT_MODE_PIN) |
| 21 | printk(BIOS_DEBUG, " Dedicated Alert# used to signal alert event\n"); |
| 22 | else |
| 23 | printk(BIOS_DEBUG, " IO bit1 pin used to signal alert event\n"); |
| 24 | |
| 25 | io_mode = config & ESPI_SLAVE_IO_MODE_SEL_MASK; |
Furquan Shaikh | 69d5bbf | 2020-05-12 15:46:16 -0700 | [diff] [blame] | 26 | switch (io_mode) { |
| 27 | case ESPI_SLAVE_IO_MODE_SEL_SINGLE: |
Furquan Shaikh | 5cc41f2 | 2020-05-11 12:11:27 -0700 | [diff] [blame] | 28 | printk(BIOS_DEBUG, " eSPI single IO mode selected\n"); |
Furquan Shaikh | 69d5bbf | 2020-05-12 15:46:16 -0700 | [diff] [blame] | 29 | break; |
| 30 | case ESPI_SLAVE_IO_MODE_SEL_DUAL: |
Furquan Shaikh | 5cc41f2 | 2020-05-11 12:11:27 -0700 | [diff] [blame] | 31 | printk(BIOS_DEBUG, " eSPI dual IO mode selected\n"); |
Furquan Shaikh | 69d5bbf | 2020-05-12 15:46:16 -0700 | [diff] [blame] | 32 | break; |
| 33 | case ESPI_SLAVE_IO_MODE_SEL_QUAD: |
Furquan Shaikh | 5cc41f2 | 2020-05-11 12:11:27 -0700 | [diff] [blame] | 34 | printk(BIOS_DEBUG, " eSPI quad IO mode selected\n"); |
Furquan Shaikh | 69d5bbf | 2020-05-12 15:46:16 -0700 | [diff] [blame] | 35 | break; |
| 36 | default: |
Furquan Shaikh | 5cc41f2 | 2020-05-11 12:11:27 -0700 | [diff] [blame] | 37 | printk(BIOS_DEBUG, " Error: Invalid eSPI IO mode selected\n"); |
Furquan Shaikh | 69d5bbf | 2020-05-12 15:46:16 -0700 | [diff] [blame] | 38 | } |
Furquan Shaikh | 5cc41f2 | 2020-05-11 12:11:27 -0700 | [diff] [blame] | 39 | |
| 40 | io_mode = config & ESPI_SLAVE_IO_MODE_SUPP_MASK; |
Furquan Shaikh | 69d5bbf | 2020-05-12 15:46:16 -0700 | [diff] [blame] | 41 | switch (io_mode) { |
| 42 | case ESPI_SLAVE_IO_MODE_SUPP_SINGLE_QUAD: |
Furquan Shaikh | 5cc41f2 | 2020-05-11 12:11:27 -0700 | [diff] [blame] | 43 | printk(BIOS_DEBUG, " eSPI quad and single IO modes supported\n"); |
Furquan Shaikh | 69d5bbf | 2020-05-12 15:46:16 -0700 | [diff] [blame] | 44 | break; |
| 45 | case ESPI_SLAVE_IO_MODE_SUPP_SINGLE_DUAL: |
| 46 | printk(BIOS_DEBUG, " eSPI dual and single IO modes supported\n"); |
| 47 | break; |
| 48 | case ESPI_SLAVE_IO_MODE_SUPP_SINGLE_DUAL_QUAD: |
| 49 | printk(BIOS_DEBUG, " eSPI quad, dual and single IO modes supported\n"); |
| 50 | break; |
| 51 | default: |
Furquan Shaikh | 5cc41f2 | 2020-05-11 12:11:27 -0700 | [diff] [blame] | 52 | printk(BIOS_DEBUG, " Only eSPI single IO mode supported\n"); |
Furquan Shaikh | 69d5bbf | 2020-05-12 15:46:16 -0700 | [diff] [blame] | 53 | } |
Furquan Shaikh | 5cc41f2 | 2020-05-11 12:11:27 -0700 | [diff] [blame] | 54 | |
| 55 | if (config & ESPI_SLAVE_OPEN_DRAIN_ALERT_SEL) |
| 56 | printk(BIOS_DEBUG, " Alert# pin is open-drain\n"); |
| 57 | else |
| 58 | printk(BIOS_DEBUG, " Alert# pin is driven\n"); |
| 59 | |
| 60 | op_freq = config & ESPI_SLAVE_OP_FREQ_SEL_MASK; |
Furquan Shaikh | 69d5bbf | 2020-05-12 15:46:16 -0700 | [diff] [blame] | 61 | switch (op_freq) { |
| 62 | case ESPI_SLAVE_OP_FREQ_SEL_20_MHZ: |
Furquan Shaikh | 5cc41f2 | 2020-05-11 12:11:27 -0700 | [diff] [blame] | 63 | printk(BIOS_DEBUG, " eSPI 20MHz selected\n"); |
Furquan Shaikh | 69d5bbf | 2020-05-12 15:46:16 -0700 | [diff] [blame] | 64 | break; |
| 65 | case ESPI_SLAVE_OP_FREQ_SEL_25_MHZ: |
Furquan Shaikh | 5cc41f2 | 2020-05-11 12:11:27 -0700 | [diff] [blame] | 66 | printk(BIOS_DEBUG, " eSPI 25MHz selected\n"); |
Furquan Shaikh | 69d5bbf | 2020-05-12 15:46:16 -0700 | [diff] [blame] | 67 | break; |
| 68 | case ESPI_SLAVE_OP_FREQ_SEL_33_MHZ: |
Furquan Shaikh | 5cc41f2 | 2020-05-11 12:11:27 -0700 | [diff] [blame] | 69 | printk(BIOS_DEBUG, " eSPI 33MHz selected\n"); |
Furquan Shaikh | 69d5bbf | 2020-05-12 15:46:16 -0700 | [diff] [blame] | 70 | break; |
| 71 | case ESPI_SLAVE_OP_FREQ_SEL_50_MHZ: |
Furquan Shaikh | 5cc41f2 | 2020-05-11 12:11:27 -0700 | [diff] [blame] | 72 | printk(BIOS_DEBUG, " eSPI 50MHz selected\n"); |
Furquan Shaikh | 69d5bbf | 2020-05-12 15:46:16 -0700 | [diff] [blame] | 73 | break; |
| 74 | case ESPI_SLAVE_OP_FREQ_SEL_66_MHZ: |
Furquan Shaikh | 5cc41f2 | 2020-05-11 12:11:27 -0700 | [diff] [blame] | 75 | printk(BIOS_DEBUG, " eSPI 66MHz selected\n"); |
Furquan Shaikh | 69d5bbf | 2020-05-12 15:46:16 -0700 | [diff] [blame] | 76 | break; |
| 77 | default: |
Furquan Shaikh | 5cc41f2 | 2020-05-11 12:11:27 -0700 | [diff] [blame] | 78 | printk(BIOS_DEBUG, " Error: Invalid eSPI frequency\n"); |
Furquan Shaikh | 69d5bbf | 2020-05-12 15:46:16 -0700 | [diff] [blame] | 79 | } |
Furquan Shaikh | 5cc41f2 | 2020-05-11 12:11:27 -0700 | [diff] [blame] | 80 | |
| 81 | if (config & ESPI_SLAVE_OPEN_DRAIN_ALERT_SUPP) |
| 82 | printk(BIOS_DEBUG, " Open-drain Alert# pin supported\n"); |
| 83 | |
| 84 | op_freq = config & ESPI_SLAVE_OP_FREQ_SUPP_MASK; |
Furquan Shaikh | 69d5bbf | 2020-05-12 15:46:16 -0700 | [diff] [blame] | 85 | switch (op_freq) { |
| 86 | case ESPI_SLAVE_OP_FREQ_SUPP_20_MHZ: |
| 87 | printk(BIOS_DEBUG, " eSPI up to 20MHz supported\n"); |
| 88 | break; |
| 89 | case ESPI_SLAVE_OP_FREQ_SUPP_25_MHZ: |
| 90 | printk(BIOS_DEBUG, " eSPI up to 25MHz supported\n"); |
| 91 | break; |
| 92 | case ESPI_SLAVE_OP_FREQ_SUPP_33_MHZ: |
| 93 | printk(BIOS_DEBUG, " eSPI up to 33MHz supported\n"); |
| 94 | break; |
| 95 | case ESPI_SLAVE_OP_FREQ_SUPP_50_MHZ: |
| 96 | printk(BIOS_DEBUG, " eSPI up to 50MHz supported\n"); |
| 97 | break; |
| 98 | case ESPI_SLAVE_OP_FREQ_SUPP_66_MHZ: |
| 99 | printk(BIOS_DEBUG, " eSPI up to 66MHz supported\n"); |
| 100 | break; |
| 101 | default: |
Furquan Shaikh | 5cc41f2 | 2020-05-11 12:11:27 -0700 | [diff] [blame] | 102 | printk(BIOS_DEBUG, " Error: Invalid eSPI frequency\n"); |
Furquan Shaikh | 69d5bbf | 2020-05-12 15:46:16 -0700 | [diff] [blame] | 103 | } |
Furquan Shaikh | 5cc41f2 | 2020-05-11 12:11:27 -0700 | [diff] [blame] | 104 | |
| 105 | printk(BIOS_DEBUG, " Maximum Wait state: %d\n", |
| 106 | (config & ESPI_SLAVE_MAX_WAIT_MASK) >> ESPI_SLAVE_MAX_WAIT_SHIFT); |
| 107 | |
| 108 | if (config & ESPI_SLAVE_PERIPH_CH_SUPP) |
| 109 | printk(BIOS_DEBUG, " Peripheral Channel supported\n"); |
| 110 | if (config & ESPI_SLAVE_VW_CH_SUPP) |
| 111 | printk(BIOS_DEBUG, " Virtual Wire Channel supported\n"); |
| 112 | if (config & ESPI_SLAVE_OOB_CH_SUPP) |
| 113 | printk(BIOS_DEBUG, " OOB Channel supported\n"); |
| 114 | if (config & ESPI_SLAVE_FLASH_CH_SUPP) |
| 115 | printk(BIOS_DEBUG, " Flash Access Channel supported\n"); |
| 116 | printk(BIOS_DEBUG, "\n"); |
| 117 | } |
Raul E Rangel | 570c654 | 2021-04-09 14:03:37 -0600 | [diff] [blame] | 118 | |
| 119 | void espi_show_slave_peripheral_channel_configuration(uint32_t config) |
| 120 | { |
| 121 | uint32_t request_size; |
| 122 | uint32_t payload_size; |
| 123 | |
| 124 | printk(BIOS_DEBUG, "eSPI Slave Peripheral configuration:\n"); |
| 125 | |
| 126 | printk(BIOS_DEBUG, " Peripheral Channel Maximum Read Request Size: "); |
| 127 | request_size = config & ESPI_SLAVE_PERIPH_MAX_READ_SIZE_MASK; |
| 128 | switch (request_size) { |
| 129 | case ESPI_SLAVE_PERIPH_MAX_READ_64B: |
| 130 | printk(BIOS_DEBUG, "64 bytes\n"); |
| 131 | break; |
| 132 | case ESPI_SLAVE_PERIPH_MAX_READ_128B: |
| 133 | printk(BIOS_DEBUG, "128 bytes\n"); |
| 134 | break; |
| 135 | case ESPI_SLAVE_PERIPH_MAX_READ_256B: |
| 136 | printk(BIOS_DEBUG, "256 bytes\n"); |
| 137 | break; |
| 138 | case ESPI_SLAVE_PERIPH_MAX_READ_512B: |
| 139 | printk(BIOS_DEBUG, "512 bytes\n"); |
| 140 | break; |
| 141 | case ESPI_SLAVE_PERIPH_MAX_READ_1024B: |
| 142 | printk(BIOS_DEBUG, "1024 bytes\n"); |
| 143 | break; |
| 144 | case ESPI_SLAVE_PERIPH_MAX_READ_2048B: |
| 145 | printk(BIOS_DEBUG, "2048 bytes\n"); |
| 146 | break; |
| 147 | case ESPI_SLAVE_PERIPH_MAX_READ_4096B: |
| 148 | printk(BIOS_DEBUG, "4096 bytes\n"); |
| 149 | break; |
| 150 | default: |
| 151 | printk(BIOS_DEBUG, "Unknown\n"); |
| 152 | } |
| 153 | |
| 154 | printk(BIOS_DEBUG, " Peripheral Channel Maximum Payload Size Selected: "); |
| 155 | payload_size = config & ESPI_SLAVE_PERIPH_MAX_PAYLOAD_SIZE_SEL_MASK; |
| 156 | switch (payload_size) { |
| 157 | case ESPI_SLAVE_PERIPH_MAX_PAYLOAD_SIZE_SEL_64B: |
| 158 | printk(BIOS_DEBUG, "64 bytes\n"); |
| 159 | break; |
| 160 | case ESPI_SLAVE_PERIPH_MAX_PAYLOAD_SIZE_SEL_128B: |
| 161 | printk(BIOS_DEBUG, "128 bytes\n"); |
| 162 | break; |
| 163 | case ESPI_SLAVE_PERIPH_MAX_PAYLOAD_SIZE_SEL_256B: |
| 164 | printk(BIOS_DEBUG, "256 bytes\n"); |
| 165 | break; |
| 166 | default: |
| 167 | printk(BIOS_DEBUG, "Unknown\n"); |
| 168 | } |
| 169 | |
| 170 | printk(BIOS_DEBUG, " Peripheral Channel Maximum Payload Size Supported: "); |
| 171 | payload_size = config & ESPI_SLAVE_PERIPH_MAX_PAYLOAD_SIZE_SUPP_MASK; |
| 172 | switch (payload_size) { |
| 173 | case ESPI_SLAVE_PERIPH_MAX_PAYLOAD_SIZE_SUPP_64B: |
| 174 | printk(BIOS_DEBUG, "64 bytes\n"); |
| 175 | break; |
| 176 | case ESPI_SLAVE_PERIPH_MAX_PAYLOAD_SIZE_SUPP_128B: |
| 177 | printk(BIOS_DEBUG, "128 bytes\n"); |
| 178 | break; |
| 179 | case ESPI_SLAVE_PERIPH_MAX_PAYLOAD_SIZE_SUPP_256B: |
| 180 | printk(BIOS_DEBUG, "256 bytes\n"); |
| 181 | break; |
| 182 | default: |
| 183 | printk(BIOS_DEBUG, "Unknown\n"); |
| 184 | } |
| 185 | |
| 186 | printk(BIOS_DEBUG, " Bus master: "); |
| 187 | if (config & ESPI_SLAVE_PERIPH_BUS_MASTER_ENABLE) |
| 188 | printk(BIOS_DEBUG, "enabled\n"); |
| 189 | else |
| 190 | printk(BIOS_DEBUG, "disabled\n"); |
| 191 | |
| 192 | printk(BIOS_DEBUG, " Peripheral Channel: "); |
| 193 | if (config & ESPI_SLAVE_CHANNEL_READY) |
| 194 | printk(BIOS_DEBUG, "ready\n"); |
| 195 | else |
| 196 | printk(BIOS_DEBUG, "not ready\n"); |
| 197 | |
| 198 | printk(BIOS_DEBUG, " Peripheral Channel: "); |
| 199 | if (config & ESPI_SLAVE_CHANNEL_ENABLE) |
| 200 | printk(BIOS_DEBUG, "enabled\n"); |
| 201 | else |
| 202 | printk(BIOS_DEBUG, "disabled\n"); |
| 203 | } |