Tom Rini | 10e4779 | 2018-05-06 17:58:06 -0400 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0+ |
Shaveta Leekha | fa0123c | 2012-10-08 07:44:17 +0000 | [diff] [blame] | 2 | /* |
| 3 | * Copyright 2012 Freescale Semiconductor, Inc. |
Biwen Li | 3e9d395 | 2020-05-01 20:04:17 +0800 | [diff] [blame] | 4 | * Copyright 2020 NXP |
Shaveta Leekha | fa0123c | 2012-10-08 07:44:17 +0000 | [diff] [blame] | 5 | */ |
| 6 | |
| 7 | #include "vsc3316_3308.h" |
Simon Glass | 0f2af88 | 2020-05-10 11:40:05 -0600 | [diff] [blame] | 8 | #include <log.h> |
Shaveta Leekha | fa0123c | 2012-10-08 07:44:17 +0000 | [diff] [blame] | 9 | |
| 10 | #define REVISION_ID_REG 0x7E |
| 11 | #define INTERFACE_MODE_REG 0x79 |
| 12 | #define CURRENT_PAGE_REGISTER 0x7F |
| 13 | #define CONNECTION_CONFIG_PAGE 0x00 |
| 14 | #define INPUT_STATE_REG 0x13 |
| 15 | #define GLOBAL_INPUT_ISE1 0x51 |
| 16 | #define GLOBAL_INPUT_ISE2 0x52 |
Shaohui Xie | 60c3b09 | 2014-11-13 11:27:49 +0800 | [diff] [blame] | 17 | #define GLOBAL_INPUT_GAIN 0x53 |
Shaveta Leekha | fa0123c | 2012-10-08 07:44:17 +0000 | [diff] [blame] | 18 | #define GLOBAL_INPUT_LOS 0x55 |
Shaohui Xie | 60c3b09 | 2014-11-13 11:27:49 +0800 | [diff] [blame] | 19 | #define GLOBAL_OUTPUT_PE1 0x56 |
| 20 | #define GLOBAL_OUTPUT_PE2 0x57 |
| 21 | #define GLOBAL_OUTPUT_LEVEL 0x58 |
| 22 | #define GLOBAL_OUTPUT_TERMINATION 0x5A |
Shaveta Leekha | fa0123c | 2012-10-08 07:44:17 +0000 | [diff] [blame] | 23 | #define GLOBAL_CORE_CNTRL 0x5D |
| 24 | #define OUTPUT_MODE_PAGE 0x23 |
| 25 | #define CORE_CONTROL_PAGE 0x25 |
| 26 | #define CORE_CONFIG_REG 0x75 |
| 27 | |
| 28 | int vsc_if_enable(unsigned int vsc_addr) |
| 29 | { |
| 30 | u8 data; |
| 31 | |
| 32 | debug("VSC:Configuring VSC at I2C address 0x%2x" |
| 33 | " for 2-wire interface\n", vsc_addr); |
| 34 | |
| 35 | /* enable 2-wire Serial InterFace (I2C) */ |
| 36 | data = 0x02; |
Igor Opaniuk | f7c9176 | 2021-02-09 13:52:45 +0200 | [diff] [blame^] | 37 | #if CONFIG_IS_ENABLED(DM_I2C) |
Biwen Li | 3e9d395 | 2020-05-01 20:04:17 +0800 | [diff] [blame] | 38 | int ret, bus_num = 0; |
| 39 | struct udevice *dev; |
| 40 | |
| 41 | ret = i2c_get_chip_for_busnum(bus_num, vsc_addr, |
| 42 | 1, &dev); |
| 43 | if (ret) { |
| 44 | printf("%s: Cannot find udev for a bus %d\n", __func__, |
| 45 | bus_num); |
| 46 | return ret; |
| 47 | } |
| 48 | |
| 49 | return dm_i2c_write(dev, INTERFACE_MODE_REG, &data, 1); |
| 50 | #else |
Shaveta Leekha | fa0123c | 2012-10-08 07:44:17 +0000 | [diff] [blame] | 51 | return i2c_write(vsc_addr, INTERFACE_MODE_REG, 1, &data, 1); |
Biwen Li | 3e9d395 | 2020-05-01 20:04:17 +0800 | [diff] [blame] | 52 | #endif |
Shaveta Leekha | fa0123c | 2012-10-08 07:44:17 +0000 | [diff] [blame] | 53 | } |
| 54 | |
Shaohui Xie | 3d8095e | 2013-08-19 18:43:07 +0800 | [diff] [blame] | 55 | int vsc3316_config(unsigned int vsc_addr, int8_t con_arr[][2], |
Shaveta Leekha | fa0123c | 2012-10-08 07:44:17 +0000 | [diff] [blame] | 56 | unsigned int num_con) |
| 57 | { |
| 58 | unsigned int i; |
| 59 | u8 rev_id = 0; |
| 60 | int ret; |
| 61 | |
| 62 | debug("VSC:Initializing VSC3316 at I2C address 0x%2x" |
| 63 | " for Tx\n", vsc_addr); |
| 64 | |
Igor Opaniuk | f7c9176 | 2021-02-09 13:52:45 +0200 | [diff] [blame^] | 65 | #if CONFIG_IS_ENABLED(DM_I2C) |
Biwen Li | 3e9d395 | 2020-05-01 20:04:17 +0800 | [diff] [blame] | 66 | int bus_num = 0; |
| 67 | struct udevice *dev; |
| 68 | |
| 69 | ret = i2c_get_chip_for_busnum(bus_num, vsc_addr, |
| 70 | 1, &dev); |
| 71 | if (ret) { |
| 72 | printf("%s: Cannot find udev for a bus %d\n", __func__, |
| 73 | bus_num); |
| 74 | return ret; |
| 75 | } |
| 76 | |
| 77 | ret = dm_i2c_read(dev, REVISION_ID_REG, &rev_id, 1); |
| 78 | if (ret < 0) { |
| 79 | printf("VSC:0x%x could not read REV_ID from device.\n", |
| 80 | vsc_addr); |
| 81 | return ret; |
| 82 | } |
| 83 | |
| 84 | if (rev_id != 0xab) { |
| 85 | printf("VSC: device at address 0x%x is not VSC3316/3308.\n", |
| 86 | vsc_addr); |
| 87 | return -ENODEV; |
| 88 | } |
| 89 | |
| 90 | ret = vsc_if_enable(vsc_addr); |
| 91 | if (ret) { |
| 92 | printf("VSC:0x%x could not configured for 2-wire I/F.\n", |
| 93 | vsc_addr); |
| 94 | return ret; |
| 95 | } |
| 96 | |
| 97 | /* config connections - page 0x00 */ |
| 98 | dm_i2c_reg_write(dev, CURRENT_PAGE_REGISTER, CONNECTION_CONFIG_PAGE); |
| 99 | |
| 100 | /* Making crosspoint connections, by connecting required |
| 101 | * input to output |
| 102 | */ |
| 103 | for (i = 0; i < num_con ; i++) |
| 104 | dm_i2c_reg_write(dev, con_arr[i][1], con_arr[i][0]); |
| 105 | |
| 106 | /* input state - page 0x13 */ |
| 107 | dm_i2c_reg_write(dev, CURRENT_PAGE_REGISTER, INPUT_STATE_REG); |
| 108 | /* Configuring the required input of the switch */ |
| 109 | for (i = 0; i < num_con ; i++) |
| 110 | dm_i2c_reg_write(dev, con_arr[i][0], 0x80); |
| 111 | |
| 112 | /* Setting Global Input LOS threshold value */ |
| 113 | dm_i2c_reg_write(dev, GLOBAL_INPUT_LOS, 0x60); |
| 114 | |
| 115 | /* config output mode - page 0x23 */ |
| 116 | dm_i2c_reg_write(dev, CURRENT_PAGE_REGISTER, OUTPUT_MODE_PAGE); |
| 117 | /* Turn ON the Output driver correspond to required output*/ |
| 118 | for (i = 0; i < num_con ; i++) |
| 119 | dm_i2c_reg_write(dev, con_arr[i][1], 0); |
| 120 | |
| 121 | /* configure global core control register, Turn on Global core power */ |
| 122 | dm_i2c_reg_write(dev, GLOBAL_CORE_CNTRL, 0); |
| 123 | |
| 124 | #else |
Shaveta Leekha | fa0123c | 2012-10-08 07:44:17 +0000 | [diff] [blame] | 125 | ret = i2c_read(vsc_addr, REVISION_ID_REG, 1, &rev_id, 1); |
| 126 | if (ret < 0) { |
| 127 | printf("VSC:0x%x could not read REV_ID from device.\n", |
| 128 | vsc_addr); |
| 129 | return ret; |
| 130 | } |
| 131 | |
| 132 | if (rev_id != 0xab) { |
| 133 | printf("VSC: device at address 0x%x is not VSC3316/3308.\n", |
| 134 | vsc_addr); |
| 135 | return -ENODEV; |
| 136 | } |
| 137 | |
| 138 | ret = vsc_if_enable(vsc_addr); |
| 139 | if (ret) { |
| 140 | printf("VSC:0x%x could not configured for 2-wire I/F.\n", |
| 141 | vsc_addr); |
| 142 | return ret; |
| 143 | } |
| 144 | |
| 145 | /* config connections - page 0x00 */ |
| 146 | i2c_reg_write(vsc_addr, CURRENT_PAGE_REGISTER, CONNECTION_CONFIG_PAGE); |
| 147 | |
| 148 | /* Making crosspoint connections, by connecting required |
| 149 | * input to output */ |
| 150 | for (i = 0; i < num_con ; i++) |
| 151 | i2c_reg_write(vsc_addr, con_arr[i][1], con_arr[i][0]); |
| 152 | |
| 153 | /* input state - page 0x13 */ |
| 154 | i2c_reg_write(vsc_addr, CURRENT_PAGE_REGISTER, INPUT_STATE_REG); |
| 155 | /* Configuring the required input of the switch */ |
| 156 | for (i = 0; i < num_con ; i++) |
| 157 | i2c_reg_write(vsc_addr, con_arr[i][0], 0x80); |
| 158 | |
| 159 | /* Setting Global Input LOS threshold value */ |
| 160 | i2c_reg_write(vsc_addr, GLOBAL_INPUT_LOS, 0x60); |
| 161 | |
| 162 | /* config output mode - page 0x23 */ |
| 163 | i2c_reg_write(vsc_addr, CURRENT_PAGE_REGISTER, OUTPUT_MODE_PAGE); |
| 164 | /* Turn ON the Output driver correspond to required output*/ |
| 165 | for (i = 0; i < num_con ; i++) |
| 166 | i2c_reg_write(vsc_addr, con_arr[i][1], 0); |
| 167 | |
| 168 | /* configure global core control register, Turn on Global core power */ |
| 169 | i2c_reg_write(vsc_addr, GLOBAL_CORE_CNTRL, 0); |
Biwen Li | 3e9d395 | 2020-05-01 20:04:17 +0800 | [diff] [blame] | 170 | #endif |
Shaveta Leekha | fa0123c | 2012-10-08 07:44:17 +0000 | [diff] [blame] | 171 | |
| 172 | vsc_wp_config(vsc_addr); |
| 173 | |
| 174 | return 0; |
| 175 | } |
| 176 | |
Shaohui Xie | 60c3b09 | 2014-11-13 11:27:49 +0800 | [diff] [blame] | 177 | #ifdef CONFIG_SYS_FSL_B4860QDS_XFI_ERR |
| 178 | int vsc3308_config_adjust(unsigned int vsc_addr, const int8_t con_arr[][2], |
| 179 | unsigned int num_con) |
| 180 | { |
| 181 | unsigned int i; |
| 182 | u8 rev_id = 0; |
| 183 | int ret; |
| 184 | |
| 185 | debug("VSC:Initializing VSC3308 at I2C address 0x%x for Tx\n", |
| 186 | vsc_addr); |
| 187 | |
Igor Opaniuk | f7c9176 | 2021-02-09 13:52:45 +0200 | [diff] [blame^] | 188 | #if CONFIG_IS_ENABLED(DM_I2C) |
Biwen Li | 3e9d395 | 2020-05-01 20:04:17 +0800 | [diff] [blame] | 189 | int bus_num = 0; |
| 190 | struct udevice *dev; |
| 191 | |
| 192 | ret = i2c_get_chip_for_busnum(bus_num, vsc_addr, |
| 193 | 1, &dev); |
| 194 | if (ret) { |
| 195 | printf("%s: Cannot find udev for a bus %d\n", __func__, |
| 196 | bus_num); |
| 197 | return ret; |
| 198 | } |
| 199 | |
| 200 | ret = dm_i2c_read(dev, REVISION_ID_REG, &rev_id, 1); |
| 201 | if (ret < 0) { |
| 202 | printf("VSC:0x%x could not read REV_ID from device.\n", |
| 203 | vsc_addr); |
| 204 | return ret; |
| 205 | } |
| 206 | |
| 207 | if (rev_id != 0xab) { |
| 208 | printf("VSC: device at address 0x%x is not VSC3316/3308.\n", |
| 209 | vsc_addr); |
| 210 | return -ENODEV; |
| 211 | } |
| 212 | |
| 213 | ret = vsc_if_enable(vsc_addr); |
| 214 | if (ret) { |
| 215 | printf("VSC:0x%x could not configured for 2-wire I/F.\n", |
| 216 | vsc_addr); |
| 217 | return ret; |
| 218 | } |
| 219 | |
| 220 | /* config connections - page 0x00 */ |
| 221 | dm_i2c_reg_write(dev, CURRENT_PAGE_REGISTER, CONNECTION_CONFIG_PAGE); |
| 222 | |
| 223 | /* Configure Global Input ISE */ |
| 224 | dm_i2c_reg_write(dev, GLOBAL_INPUT_ISE1, 0); |
| 225 | dm_i2c_reg_write(dev, GLOBAL_INPUT_ISE2, 0); |
| 226 | |
| 227 | /* Configure Tx/Rx Global Output PE1 */ |
| 228 | dm_i2c_reg_write(dev, GLOBAL_OUTPUT_PE1, 0); |
| 229 | |
| 230 | /* Configure Tx/Rx Global Output PE2 */ |
| 231 | dm_i2c_reg_write(dev, GLOBAL_OUTPUT_PE2, 0); |
| 232 | |
| 233 | /* Configure Tx/Rx Global Input GAIN */ |
| 234 | dm_i2c_reg_write(dev, GLOBAL_INPUT_GAIN, 0x3F); |
| 235 | |
| 236 | /* Setting Global Input LOS threshold value */ |
| 237 | dm_i2c_reg_write(dev, GLOBAL_INPUT_LOS, 0xE0); |
| 238 | |
| 239 | /* Setting Global output termination */ |
| 240 | dm_i2c_reg_write(dev, GLOBAL_OUTPUT_TERMINATION, 0); |
| 241 | |
| 242 | /* Configure Tx/Rx Global Output level */ |
| 243 | if (vsc_addr == VSC3308_TX_ADDRESS) |
| 244 | dm_i2c_reg_write(dev, GLOBAL_OUTPUT_LEVEL, 4); |
| 245 | else |
| 246 | dm_i2c_reg_write(dev, GLOBAL_OUTPUT_LEVEL, 2); |
| 247 | |
| 248 | /* Making crosspoint connections, by connecting required |
| 249 | * input to output |
| 250 | */ |
| 251 | for (i = 0; i < num_con ; i++) |
| 252 | dm_i2c_reg_write(dev, con_arr[i][1], con_arr[i][0]); |
| 253 | |
| 254 | /* input state - page 0x13 */ |
| 255 | dm_i2c_reg_write(dev, CURRENT_PAGE_REGISTER, INPUT_STATE_REG); |
| 256 | /* Turning off all the required input of the switch */ |
| 257 | for (i = 0; i < num_con; i++) |
| 258 | dm_i2c_reg_write(dev, con_arr[i][0], 1); |
| 259 | |
| 260 | /* only turn on specific Tx/Rx requested by the XFI erratum */ |
| 261 | if (vsc_addr == VSC3308_TX_ADDRESS) { |
| 262 | dm_i2c_reg_write(dev, 2, 0); |
| 263 | dm_i2c_reg_write(dev, 3, 0); |
| 264 | } else { |
| 265 | dm_i2c_reg_write(dev, 0, 0); |
| 266 | dm_i2c_reg_write(dev, 1, 0); |
| 267 | } |
| 268 | |
| 269 | /* config output mode - page 0x23 */ |
| 270 | dm_i2c_reg_write(dev, CURRENT_PAGE_REGISTER, OUTPUT_MODE_PAGE); |
| 271 | /* Turn off the Output driver correspond to required output*/ |
| 272 | for (i = 0; i < num_con ; i++) |
| 273 | dm_i2c_reg_write(dev, con_arr[i][1], 1); |
| 274 | |
| 275 | /* only turn on specific Tx/Rx requested by the XFI erratum */ |
| 276 | if (vsc_addr == VSC3308_TX_ADDRESS) { |
| 277 | dm_i2c_reg_write(dev, 0, 0); |
| 278 | dm_i2c_reg_write(dev, 1, 0); |
| 279 | } else { |
| 280 | dm_i2c_reg_write(dev, 3, 0); |
| 281 | dm_i2c_reg_write(dev, 4, 0); |
| 282 | } |
| 283 | |
| 284 | /* configure global core control register, Turn on Global core power */ |
| 285 | dm_i2c_reg_write(dev, GLOBAL_CORE_CNTRL, 0); |
| 286 | #else |
Shaohui Xie | 60c3b09 | 2014-11-13 11:27:49 +0800 | [diff] [blame] | 287 | ret = i2c_read(vsc_addr, REVISION_ID_REG, 1, &rev_id, 1); |
| 288 | if (ret < 0) { |
| 289 | printf("VSC:0x%x could not read REV_ID from device.\n", |
| 290 | vsc_addr); |
| 291 | return ret; |
| 292 | } |
| 293 | |
| 294 | if (rev_id != 0xab) { |
| 295 | printf("VSC: device at address 0x%x is not VSC3316/3308.\n", |
| 296 | vsc_addr); |
| 297 | return -ENODEV; |
| 298 | } |
| 299 | |
| 300 | ret = vsc_if_enable(vsc_addr); |
| 301 | if (ret) { |
| 302 | printf("VSC:0x%x could not configured for 2-wire I/F.\n", |
| 303 | vsc_addr); |
| 304 | return ret; |
| 305 | } |
| 306 | |
| 307 | /* config connections - page 0x00 */ |
| 308 | i2c_reg_write(vsc_addr, CURRENT_PAGE_REGISTER, CONNECTION_CONFIG_PAGE); |
| 309 | |
| 310 | /* Configure Global Input ISE */ |
| 311 | i2c_reg_write(vsc_addr, GLOBAL_INPUT_ISE1, 0); |
| 312 | i2c_reg_write(vsc_addr, GLOBAL_INPUT_ISE2, 0); |
| 313 | |
| 314 | /* Configure Tx/Rx Global Output PE1 */ |
| 315 | i2c_reg_write(vsc_addr, GLOBAL_OUTPUT_PE1, 0); |
| 316 | |
| 317 | /* Configure Tx/Rx Global Output PE2 */ |
| 318 | i2c_reg_write(vsc_addr, GLOBAL_OUTPUT_PE2, 0); |
| 319 | |
| 320 | /* Configure Tx/Rx Global Input GAIN */ |
| 321 | i2c_reg_write(vsc_addr, GLOBAL_INPUT_GAIN, 0x3F); |
| 322 | |
| 323 | /* Setting Global Input LOS threshold value */ |
| 324 | i2c_reg_write(vsc_addr, GLOBAL_INPUT_LOS, 0xE0); |
| 325 | |
| 326 | /* Setting Global output termination */ |
| 327 | i2c_reg_write(vsc_addr, GLOBAL_OUTPUT_TERMINATION, 0); |
| 328 | |
| 329 | /* Configure Tx/Rx Global Output level */ |
| 330 | if (vsc_addr == VSC3308_TX_ADDRESS) |
| 331 | i2c_reg_write(vsc_addr, GLOBAL_OUTPUT_LEVEL, 4); |
| 332 | else |
| 333 | i2c_reg_write(vsc_addr, GLOBAL_OUTPUT_LEVEL, 2); |
| 334 | |
| 335 | /* Making crosspoint connections, by connecting required |
| 336 | * input to output */ |
| 337 | for (i = 0; i < num_con ; i++) |
| 338 | i2c_reg_write(vsc_addr, con_arr[i][1], con_arr[i][0]); |
| 339 | |
| 340 | /* input state - page 0x13 */ |
| 341 | i2c_reg_write(vsc_addr, CURRENT_PAGE_REGISTER, INPUT_STATE_REG); |
| 342 | /* Turning off all the required input of the switch */ |
| 343 | for (i = 0; i < num_con; i++) |
| 344 | i2c_reg_write(vsc_addr, con_arr[i][0], 1); |
| 345 | |
| 346 | /* only turn on specific Tx/Rx requested by the XFI erratum */ |
| 347 | if (vsc_addr == VSC3308_TX_ADDRESS) { |
| 348 | i2c_reg_write(vsc_addr, 2, 0); |
| 349 | i2c_reg_write(vsc_addr, 3, 0); |
| 350 | } else { |
| 351 | i2c_reg_write(vsc_addr, 0, 0); |
| 352 | i2c_reg_write(vsc_addr, 1, 0); |
| 353 | } |
| 354 | |
| 355 | /* config output mode - page 0x23 */ |
| 356 | i2c_reg_write(vsc_addr, CURRENT_PAGE_REGISTER, OUTPUT_MODE_PAGE); |
| 357 | /* Turn off the Output driver correspond to required output*/ |
| 358 | for (i = 0; i < num_con ; i++) |
| 359 | i2c_reg_write(vsc_addr, con_arr[i][1], 1); |
| 360 | |
| 361 | /* only turn on specific Tx/Rx requested by the XFI erratum */ |
| 362 | if (vsc_addr == VSC3308_TX_ADDRESS) { |
| 363 | i2c_reg_write(vsc_addr, 0, 0); |
| 364 | i2c_reg_write(vsc_addr, 1, 0); |
| 365 | } else { |
| 366 | i2c_reg_write(vsc_addr, 3, 0); |
| 367 | i2c_reg_write(vsc_addr, 4, 0); |
| 368 | } |
| 369 | |
| 370 | /* configure global core control register, Turn on Global core power */ |
| 371 | i2c_reg_write(vsc_addr, GLOBAL_CORE_CNTRL, 0); |
Biwen Li | 3e9d395 | 2020-05-01 20:04:17 +0800 | [diff] [blame] | 372 | #endif |
Shaohui Xie | 60c3b09 | 2014-11-13 11:27:49 +0800 | [diff] [blame] | 373 | vsc_wp_config(vsc_addr); |
| 374 | |
| 375 | return 0; |
| 376 | } |
| 377 | #endif |
| 378 | |
Shaveta Leekha | fa0123c | 2012-10-08 07:44:17 +0000 | [diff] [blame] | 379 | int vsc3308_config(unsigned int vsc_addr, const int8_t con_arr[][2], |
| 380 | unsigned int num_con) |
| 381 | { |
| 382 | unsigned int i; |
| 383 | u8 rev_id = 0; |
| 384 | int ret; |
| 385 | |
| 386 | debug("VSC:Initializing VSC3308 at I2C address 0x%x" |
| 387 | " for Tx\n", vsc_addr); |
Igor Opaniuk | f7c9176 | 2021-02-09 13:52:45 +0200 | [diff] [blame^] | 388 | #if CONFIG_IS_ENABLED(DM_I2C) |
Biwen Li | 3e9d395 | 2020-05-01 20:04:17 +0800 | [diff] [blame] | 389 | int bus_num = 0; |
| 390 | struct udevice *dev; |
| 391 | |
| 392 | ret = i2c_get_chip_for_busnum(bus_num, vsc_addr, |
| 393 | 1, &dev); |
| 394 | if (ret) { |
| 395 | printf("%s: Cannot find udev for a bus %d\n", __func__, |
| 396 | bus_num); |
| 397 | return ret; |
| 398 | } |
Shaveta Leekha | fa0123c | 2012-10-08 07:44:17 +0000 | [diff] [blame] | 399 | |
Biwen Li | 3e9d395 | 2020-05-01 20:04:17 +0800 | [diff] [blame] | 400 | ret = dm_i2c_read(dev, REVISION_ID_REG, &rev_id, 1); |
| 401 | if (ret < 0) { |
| 402 | printf("VSC:0x%x could not read REV_ID from device.\n", |
| 403 | vsc_addr); |
| 404 | return ret; |
| 405 | } |
| 406 | |
| 407 | if (rev_id != 0xab) { |
| 408 | printf("VSC: device at address 0x%x is not VSC3316/3308.\n", |
| 409 | vsc_addr); |
| 410 | return -ENODEV; |
| 411 | } |
| 412 | |
| 413 | ret = vsc_if_enable(vsc_addr); |
| 414 | if (ret) { |
| 415 | printf("VSC:0x%x could not configured for 2-wire I/F.\n", |
| 416 | vsc_addr); |
| 417 | return ret; |
| 418 | } |
| 419 | |
| 420 | /* config connections - page 0x00 */ |
| 421 | dm_i2c_reg_write(dev, CURRENT_PAGE_REGISTER, CONNECTION_CONFIG_PAGE); |
| 422 | |
| 423 | /* Making crosspoint connections, by connecting required |
| 424 | * input to output |
| 425 | */ |
| 426 | for (i = 0; i < num_con ; i++) |
| 427 | dm_i2c_reg_write(dev, con_arr[i][1], con_arr[i][0]); |
| 428 | |
| 429 | /*Configure Global Input ISE and gain */ |
| 430 | dm_i2c_reg_write(dev, GLOBAL_INPUT_ISE1, 0x12); |
| 431 | dm_i2c_reg_write(dev, GLOBAL_INPUT_ISE2, 0x12); |
| 432 | |
| 433 | /* input state - page 0x13 */ |
| 434 | dm_i2c_reg_write(dev, CURRENT_PAGE_REGISTER, INPUT_STATE_REG); |
| 435 | /* Turning ON the required input of the switch */ |
| 436 | for (i = 0; i < num_con ; i++) |
| 437 | dm_i2c_reg_write(dev, con_arr[i][0], 0); |
| 438 | |
| 439 | /* Setting Global Input LOS threshold value */ |
| 440 | dm_i2c_reg_write(dev, GLOBAL_INPUT_LOS, 0x60); |
| 441 | |
| 442 | /* config output mode - page 0x23 */ |
| 443 | dm_i2c_reg_write(dev, CURRENT_PAGE_REGISTER, OUTPUT_MODE_PAGE); |
| 444 | /* Turn ON the Output driver correspond to required output*/ |
| 445 | for (i = 0; i < num_con ; i++) |
| 446 | dm_i2c_reg_write(dev, con_arr[i][1], 0); |
| 447 | |
| 448 | /* configure global core control register, Turn on Global core power */ |
| 449 | dm_i2c_reg_write(dev, GLOBAL_CORE_CNTRL, 0); |
| 450 | #else |
Shaveta Leekha | fa0123c | 2012-10-08 07:44:17 +0000 | [diff] [blame] | 451 | ret = i2c_read(vsc_addr, REVISION_ID_REG, 1, &rev_id, 1); |
| 452 | if (ret < 0) { |
| 453 | printf("VSC:0x%x could not read REV_ID from device.\n", |
| 454 | vsc_addr); |
| 455 | return ret; |
| 456 | } |
| 457 | |
| 458 | if (rev_id != 0xab) { |
| 459 | printf("VSC: device at address 0x%x is not VSC3316/3308.\n", |
| 460 | vsc_addr); |
| 461 | return -ENODEV; |
| 462 | } |
| 463 | |
| 464 | ret = vsc_if_enable(vsc_addr); |
| 465 | if (ret) { |
| 466 | printf("VSC:0x%x could not configured for 2-wire I/F.\n", |
| 467 | vsc_addr); |
| 468 | return ret; |
| 469 | } |
| 470 | |
| 471 | /* config connections - page 0x00 */ |
| 472 | i2c_reg_write(vsc_addr, CURRENT_PAGE_REGISTER, CONNECTION_CONFIG_PAGE); |
| 473 | |
| 474 | /* Making crosspoint connections, by connecting required |
| 475 | * input to output */ |
| 476 | for (i = 0; i < num_con ; i++) |
| 477 | i2c_reg_write(vsc_addr, con_arr[i][1], con_arr[i][0]); |
| 478 | |
| 479 | /*Configure Global Input ISE and gain */ |
| 480 | i2c_reg_write(vsc_addr, GLOBAL_INPUT_ISE1, 0x12); |
| 481 | i2c_reg_write(vsc_addr, GLOBAL_INPUT_ISE2, 0x12); |
| 482 | |
| 483 | /* input state - page 0x13 */ |
| 484 | i2c_reg_write(vsc_addr, CURRENT_PAGE_REGISTER, INPUT_STATE_REG); |
| 485 | /* Turning ON the required input of the switch */ |
| 486 | for (i = 0; i < num_con ; i++) |
| 487 | i2c_reg_write(vsc_addr, con_arr[i][0], 0); |
| 488 | |
| 489 | /* Setting Global Input LOS threshold value */ |
| 490 | i2c_reg_write(vsc_addr, GLOBAL_INPUT_LOS, 0x60); |
| 491 | |
| 492 | /* config output mode - page 0x23 */ |
| 493 | i2c_reg_write(vsc_addr, CURRENT_PAGE_REGISTER, OUTPUT_MODE_PAGE); |
| 494 | /* Turn ON the Output driver correspond to required output*/ |
| 495 | for (i = 0; i < num_con ; i++) |
| 496 | i2c_reg_write(vsc_addr, con_arr[i][1], 0); |
| 497 | |
| 498 | /* configure global core control register, Turn on Global core power */ |
| 499 | i2c_reg_write(vsc_addr, GLOBAL_CORE_CNTRL, 0); |
Biwen Li | 3e9d395 | 2020-05-01 20:04:17 +0800 | [diff] [blame] | 500 | #endif |
Shaveta Leekha | fa0123c | 2012-10-08 07:44:17 +0000 | [diff] [blame] | 501 | vsc_wp_config(vsc_addr); |
| 502 | |
| 503 | return 0; |
| 504 | } |
| 505 | |
| 506 | void vsc_wp_config(unsigned int vsc_addr) |
| 507 | { |
| 508 | debug("VSC:Configuring VSC at address:0x%x for WP\n", vsc_addr); |
| 509 | |
| 510 | /* For new crosspoint configuration to occur, WP bit of |
| 511 | * CORE_CONFIG_REG should be set 1 and then reset to 0 */ |
Igor Opaniuk | f7c9176 | 2021-02-09 13:52:45 +0200 | [diff] [blame^] | 512 | #if CONFIG_IS_ENABLED(DM_I2C) |
Biwen Li | 3e9d395 | 2020-05-01 20:04:17 +0800 | [diff] [blame] | 513 | int ret, bus_num = 0; |
| 514 | struct udevice *dev; |
| 515 | |
| 516 | ret = i2c_get_chip_for_busnum(bus_num, vsc_addr, |
| 517 | 1, &dev); |
| 518 | if (ret) { |
| 519 | printf("%s: Cannot find udev for a bus %d\n", __func__, |
| 520 | bus_num); |
| 521 | return; |
| 522 | } |
| 523 | |
| 524 | dm_i2c_reg_write(dev, CORE_CONFIG_REG, 0x01); |
| 525 | dm_i2c_reg_write(dev, CORE_CONFIG_REG, 0x0); |
| 526 | #else |
Shaveta Leekha | fa0123c | 2012-10-08 07:44:17 +0000 | [diff] [blame] | 527 | i2c_reg_write(vsc_addr, CORE_CONFIG_REG, 0x01); |
| 528 | i2c_reg_write(vsc_addr, CORE_CONFIG_REG, 0x0); |
Biwen Li | 3e9d395 | 2020-05-01 20:04:17 +0800 | [diff] [blame] | 529 | #endif |
Shaveta Leekha | fa0123c | 2012-10-08 07:44:17 +0000 | [diff] [blame] | 530 | } |