Tejas Patel | 9d09ff9 | 2019-01-08 01:46:35 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2019, Xilinx, Inc. All rights reserved. |
| 3 | * |
| 4 | * SPDX-License-Identifier: BSD-3-Clause |
| 5 | */ |
| 6 | |
| 7 | /* |
| 8 | * Versal system level PM-API functions and communication with PMC via |
| 9 | * IPI interrupts |
| 10 | */ |
| 11 | |
| 12 | #include <pm_common.h> |
| 13 | #include <pm_ipi.h> |
Tejas Patel | fe0e10a | 2019-12-08 23:29:44 -0800 | [diff] [blame] | 14 | #include <plat/common/platform.h> |
Tejas Patel | 9d09ff9 | 2019-01-08 01:46:35 -0800 | [diff] [blame] | 15 | #include "pm_api_sys.h" |
| 16 | #include "pm_client.h" |
| 17 | |
| 18 | /********************************************************************* |
| 19 | * Target module IDs macros |
| 20 | ********************************************************************/ |
| 21 | #define LIBPM_MODULE_ID 0x2 |
| 22 | #define LOADER_MODULE_ID 0x7 |
| 23 | |
| 24 | /** |
| 25 | * Assigning of argument values into array elements. |
| 26 | */ |
| 27 | #define PM_PACK_PAYLOAD1(pl, mid, arg0) { \ |
| 28 | pl[0] = (uint32_t)((uint32_t)((arg0) & 0xFF) | (mid << 8)); \ |
| 29 | } |
| 30 | |
Tejas Patel | fe0e10a | 2019-12-08 23:29:44 -0800 | [diff] [blame] | 31 | #define PM_PACK_PAYLOAD2(pl, mid, arg0, arg1) { \ |
| 32 | pl[1] = (uint32_t)(arg1); \ |
| 33 | PM_PACK_PAYLOAD1(pl, mid, arg0); \ |
| 34 | } |
| 35 | |
| 36 | #define PM_PACK_PAYLOAD3(pl, mid, arg0, arg1, arg2) { \ |
| 37 | pl[2] = (uint32_t)(arg2); \ |
| 38 | PM_PACK_PAYLOAD2(pl, mid, arg0, arg1); \ |
| 39 | } |
| 40 | |
| 41 | #define PM_PACK_PAYLOAD4(pl, mid, arg0, arg1, arg2, arg3) { \ |
| 42 | pl[3] = (uint32_t)(arg3); \ |
| 43 | PM_PACK_PAYLOAD3(pl, mid, arg0, arg1, arg2); \ |
| 44 | } |
| 45 | |
| 46 | #define PM_PACK_PAYLOAD5(pl, mid, arg0, arg1, arg2, arg3, arg4) { \ |
| 47 | pl[4] = (uint32_t)(arg4); \ |
| 48 | PM_PACK_PAYLOAD4(pl, mid, arg0, arg1, arg2, arg3); \ |
| 49 | } |
| 50 | |
| 51 | #define PM_PACK_PAYLOAD6(pl, mid, arg0, arg1, arg2, arg3, arg4, arg5) { \ |
| 52 | pl[5] = (uint32_t)(arg5); \ |
| 53 | PM_PACK_PAYLOAD5(pl, mid, arg0, arg1, arg2, arg3, arg4); \ |
| 54 | } |
| 55 | |
Tejas Patel | 9d09ff9 | 2019-01-08 01:46:35 -0800 | [diff] [blame] | 56 | /* PM API functions */ |
| 57 | |
| 58 | /** |
| 59 | * pm_get_api_version() - Get version number of PMC PM firmware |
| 60 | * @version Returns 32-bit version number of PMC Power Management Firmware |
| 61 | * |
| 62 | * @return Returns status, either success or error+reason |
| 63 | */ |
| 64 | enum pm_ret_status pm_get_api_version(unsigned int *version) |
| 65 | { |
| 66 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 67 | |
| 68 | /* Send request to the PMC */ |
| 69 | PM_PACK_PAYLOAD1(payload, LIBPM_MODULE_ID, PM_GET_API_VERSION); |
| 70 | return pm_ipi_send_sync(primary_proc, payload, version, 1); |
| 71 | } |
Tejas Patel | fe0e10a | 2019-12-08 23:29:44 -0800 | [diff] [blame] | 72 | |
| 73 | /** |
| 74 | * pm_self_suspend() - PM call for processor to suspend itself |
| 75 | * @nid Node id of the processor or subsystem |
| 76 | * @latency Requested maximum wakeup latency (not supported) |
| 77 | * @state Requested state |
| 78 | * @address Resume address |
| 79 | * |
| 80 | * This is a blocking call, it will return only once PMU has responded. |
| 81 | * On a wakeup, resume address will be automatically set by PMU. |
| 82 | * |
| 83 | * @return Returns status, either success or error+reason |
| 84 | */ |
| 85 | enum pm_ret_status pm_self_suspend(uint32_t nid, |
| 86 | unsigned int latency, |
| 87 | unsigned int state, |
| 88 | uintptr_t address) |
| 89 | { |
| 90 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 91 | unsigned int cpuid = plat_my_core_pos(); |
| 92 | const struct pm_proc *proc = pm_get_proc(cpuid); |
| 93 | |
| 94 | if (!proc) { |
| 95 | WARN("Failed to get proc %d\n", cpuid); |
| 96 | return PM_RET_ERROR_INTERNAL; |
| 97 | } |
| 98 | |
| 99 | /* |
| 100 | * Do client specific suspend operations |
| 101 | * (e.g. set powerdown request bit) |
| 102 | */ |
| 103 | pm_client_suspend(proc, state); |
| 104 | |
| 105 | /* Send request to the PLM */ |
| 106 | PM_PACK_PAYLOAD6(payload, LIBPM_MODULE_ID, PM_SELF_SUSPEND, |
| 107 | proc->node_id, latency, state, address, |
| 108 | (address >> 32)); |
| 109 | return pm_ipi_send_sync(proc, payload, NULL, 0); |
| 110 | } |
| 111 | |
| 112 | /** |
| 113 | * pm_abort_suspend() - PM call to announce that a prior suspend request |
| 114 | * is to be aborted. |
| 115 | * @reason Reason for the abort |
| 116 | * |
| 117 | * Calling PU expects the PMU to abort the initiated suspend procedure. |
| 118 | * This is a non-blocking call without any acknowledge. |
| 119 | * |
| 120 | * @return Returns status, either success or error+reason |
| 121 | */ |
| 122 | enum pm_ret_status pm_abort_suspend(enum pm_abort_reason reason) |
| 123 | { |
| 124 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 125 | |
| 126 | /* |
| 127 | * Do client specific abort suspend operations |
| 128 | * (e.g. enable interrupts and clear powerdown request bit) |
| 129 | */ |
| 130 | pm_client_abort_suspend(); |
| 131 | |
| 132 | /* Send request to the PLM */ |
| 133 | PM_PACK_PAYLOAD3(payload, LIBPM_MODULE_ID, PM_ABORT_SUSPEND, reason, |
| 134 | primary_proc->node_id); |
| 135 | return pm_ipi_send(primary_proc, payload); |
| 136 | } |
| 137 | |
| 138 | /** |
| 139 | * pm_req_suspend() - PM call to request for another PU or subsystem to |
| 140 | * be suspended gracefully. |
| 141 | * @target Node id of the targeted PU or subsystem |
| 142 | * @ack Flag to specify whether acknowledge is requested |
| 143 | * @latency Requested wakeup latency (not supported) |
| 144 | * @state Requested state (not supported) |
| 145 | * |
| 146 | * @return Returns status, either success or error+reason |
| 147 | */ |
| 148 | enum pm_ret_status pm_req_suspend(uint32_t target, uint8_t ack, |
| 149 | unsigned int latency, unsigned int state) |
| 150 | { |
| 151 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 152 | |
| 153 | /* Send request to the PMU */ |
| 154 | PM_PACK_PAYLOAD4(payload, LIBPM_MODULE_ID, PM_REQ_SUSPEND, target, |
| 155 | latency, state); |
| 156 | if (ack == IPI_BLOCKING) |
| 157 | return pm_ipi_send_sync(primary_proc, payload, NULL, 0); |
| 158 | else |
| 159 | return pm_ipi_send(primary_proc, payload); |
| 160 | } |
Tejas Patel | 41f3e0b | 2019-01-08 01:46:37 -0800 | [diff] [blame] | 161 | |
| 162 | /** |
Tejas Patel | 49cd871 | 2019-01-23 14:18:51 +0530 | [diff] [blame] | 163 | * pm_req_wakeup() - PM call for processor to wake up selected processor |
| 164 | * or subsystem |
| 165 | * @target Device ID of the processor or subsystem to wake up |
| 166 | * @set_address Resume address presence indicator |
| 167 | * 1 - resume address specified, 0 - otherwise |
| 168 | * @address Resume address |
| 169 | * @ack Flag to specify whether acknowledge requested |
| 170 | * |
| 171 | * This API function is either used to power up another APU core for SMP |
| 172 | * (by PSCI) or to power up an entirely different PU or subsystem, such |
| 173 | * as RPU0, RPU, or PL_CORE_xx. Resume address for the target PU will be |
| 174 | * automatically set by PMC. |
| 175 | * |
| 176 | * @return Returns status, either success or error+reason |
| 177 | */ |
| 178 | enum pm_ret_status pm_req_wakeup(uint32_t target, uint32_t set_address, |
| 179 | uintptr_t address, uint8_t ack) |
| 180 | { |
| 181 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 182 | |
| 183 | /* Send request to the PMC to perform the wake of the PU */ |
| 184 | PM_PACK_PAYLOAD5(payload, LIBPM_MODULE_ID, PM_REQ_WAKEUP, target, |
| 185 | set_address, address, ack); |
| 186 | |
| 187 | return pm_ipi_send_sync(primary_proc, payload, NULL, 0); |
| 188 | } |
| 189 | |
| 190 | /** |
Tejas Patel | 41f3e0b | 2019-01-08 01:46:37 -0800 | [diff] [blame] | 191 | * pm_request_device() - Request a device |
| 192 | * @device_id Device ID |
| 193 | * @capabilities Requested capabilities for the device |
| 194 | * @qos Required Quality of Service |
| 195 | * @ack Flag to specify whether acknowledge requested |
| 196 | * |
| 197 | * @return Returns status, either success or error+reason |
| 198 | */ |
| 199 | enum pm_ret_status pm_request_device(uint32_t device_id, uint32_t capabilities, |
| 200 | uint32_t qos, uint32_t ack) |
| 201 | { |
| 202 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 203 | |
| 204 | /* Send request to the PMC */ |
| 205 | PM_PACK_PAYLOAD5(payload, LIBPM_MODULE_ID, PM_REQUEST_DEVICE, |
| 206 | device_id, capabilities, qos, ack); |
| 207 | |
| 208 | return pm_ipi_send_sync(primary_proc, payload, NULL, 0); |
| 209 | } |
| 210 | |
| 211 | /** |
| 212 | * pm_release_device() - Release a device |
| 213 | * @device_id Device ID |
| 214 | * |
| 215 | * @return Returns status, either success or error+reason |
| 216 | */ |
| 217 | enum pm_ret_status pm_release_device(uint32_t device_id) |
| 218 | { |
| 219 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 220 | |
| 221 | /* Send request to the PMC */ |
| 222 | PM_PACK_PAYLOAD2(payload, LIBPM_MODULE_ID, PM_RELEASE_DEVICE, |
| 223 | device_id); |
| 224 | |
| 225 | return pm_ipi_send_sync(primary_proc, payload, NULL, 0); |
| 226 | } |
| 227 | |
| 228 | /** |
| 229 | * pm_set_requirement() - Set requirement for the device |
| 230 | * @device_id Device ID |
| 231 | * @capabilities Requested capabilities for the device |
| 232 | * @latency Requested maximum latency |
| 233 | * @qos Required Quality of Service |
| 234 | * |
| 235 | * @return Returns status, either success or error+reason |
| 236 | */ |
| 237 | enum pm_ret_status pm_set_requirement(uint32_t device_id, uint32_t capabilities, |
| 238 | uint32_t latency, uint32_t qos) |
| 239 | { |
| 240 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 241 | |
| 242 | /* Send request to the PMC */ |
| 243 | PM_PACK_PAYLOAD5(payload, LIBPM_MODULE_ID, PM_SET_REQUIREMENT, |
| 244 | device_id, capabilities, latency, qos); |
| 245 | |
| 246 | return pm_ipi_send_sync(primary_proc, payload, NULL, 0); |
| 247 | } |
| 248 | |
| 249 | /** |
| 250 | * pm_get_device_status() - Get device's status |
| 251 | * @device_id Device ID |
| 252 | * @response Buffer to store device status response |
| 253 | * |
| 254 | * @return Returns status, either success or error+reason |
| 255 | */ |
| 256 | enum pm_ret_status pm_get_device_status(uint32_t device_id, uint32_t *response) |
| 257 | { |
| 258 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 259 | |
| 260 | /* Send request to the PMC */ |
| 261 | PM_PACK_PAYLOAD2(payload, LIBPM_MODULE_ID, PM_GET_DEVICE_STATUS, |
| 262 | device_id); |
| 263 | |
| 264 | return pm_ipi_send_sync(primary_proc, payload, response, 3); |
| 265 | } |
Tejas Patel | 87c4f3a | 2019-01-08 01:46:38 -0800 | [diff] [blame] | 266 | |
| 267 | /** |
| 268 | * pm_reset_assert() - Assert/De-assert reset |
| 269 | * @reset Reset ID |
| 270 | * @assert Assert (1) or de-assert (0) |
| 271 | * |
| 272 | * @return Returns status, either success or error+reason |
| 273 | */ |
| 274 | enum pm_ret_status pm_reset_assert(uint32_t reset, bool assert) |
| 275 | { |
| 276 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 277 | |
| 278 | /* Send request to the PMC */ |
| 279 | PM_PACK_PAYLOAD3(payload, LIBPM_MODULE_ID, PM_RESET_ASSERT, reset, |
| 280 | assert); |
| 281 | |
| 282 | return pm_ipi_send_sync(primary_proc, payload, NULL, 0); |
| 283 | } |
| 284 | |
| 285 | /** |
| 286 | * pm_reset_get_status() - Get current status of a reset line |
| 287 | * @reset Reset ID |
| 288 | * @status Returns current status of selected reset ID |
| 289 | * |
| 290 | * @return Returns status, either success or error+reason |
| 291 | */ |
| 292 | enum pm_ret_status pm_reset_get_status(uint32_t reset, uint32_t *status) |
| 293 | { |
| 294 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 295 | |
| 296 | /* Send request to the PMC */ |
| 297 | PM_PACK_PAYLOAD2(payload, LIBPM_MODULE_ID, PM_RESET_ASSERT, reset); |
| 298 | |
| 299 | return pm_ipi_send_sync(primary_proc, payload, status, 1); |
| 300 | } |
Tejas Patel | 20e9202 | 2019-01-08 01:46:39 -0800 | [diff] [blame] | 301 | |
| 302 | /** |
| 303 | * pm_pinctrl_request() - Request a pin |
| 304 | * @pin Pin ID |
| 305 | * |
| 306 | * @return Returns status, either success or error+reason |
| 307 | */ |
| 308 | enum pm_ret_status pm_pinctrl_request(uint32_t pin) |
| 309 | { |
| 310 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 311 | |
| 312 | /* Send request to the PMC */ |
| 313 | PM_PACK_PAYLOAD2(payload, LIBPM_MODULE_ID, PM_PINCTRL_REQUEST, pin); |
| 314 | |
| 315 | return pm_ipi_send_sync(primary_proc, payload, NULL, 0); |
| 316 | } |
| 317 | |
| 318 | /** |
| 319 | * pm_pinctrl_release() - Release a pin |
| 320 | * @pin Pin ID |
| 321 | * |
| 322 | * @return Returns status, either success or error+reason |
| 323 | */ |
| 324 | enum pm_ret_status pm_pinctrl_release(uint32_t pin) |
| 325 | { |
| 326 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 327 | |
| 328 | /* Send request to the PMC */ |
| 329 | PM_PACK_PAYLOAD2(payload, LIBPM_MODULE_ID, PM_PINCTRL_RELEASE, pin); |
| 330 | |
| 331 | return pm_ipi_send_sync(primary_proc, payload, NULL, 0); |
| 332 | } |
| 333 | |
| 334 | /** |
| 335 | * pm_pinctrl_set_function() - Set pin function |
| 336 | * @pin Pin ID |
| 337 | * @function Function ID |
| 338 | * |
| 339 | * @return Returns status, either success or error+reason |
| 340 | */ |
| 341 | enum pm_ret_status pm_pinctrl_set_function(uint32_t pin, uint32_t function) |
| 342 | { |
| 343 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 344 | |
| 345 | /* Send request to the PMC */ |
| 346 | PM_PACK_PAYLOAD3(payload, LIBPM_MODULE_ID, PM_PINCTRL_SET_FUNCTION, pin, |
| 347 | function) |
| 348 | |
| 349 | return pm_ipi_send_sync(primary_proc, payload, NULL, 0); |
| 350 | } |
| 351 | |
| 352 | /** |
| 353 | * pm_pinctrl_get_function() - Get function set on the pin |
| 354 | * @pin Pin ID |
| 355 | * @function Function set on the pin |
| 356 | * |
| 357 | * @return Returns status, either success or error+reason |
| 358 | */ |
| 359 | enum pm_ret_status pm_pinctrl_get_function(uint32_t pin, uint32_t *function) |
| 360 | { |
| 361 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 362 | |
| 363 | /* Send request to the PMC */ |
| 364 | PM_PACK_PAYLOAD2(payload, LIBPM_MODULE_ID, PM_PINCTRL_SET_FUNCTION, |
| 365 | pin); |
| 366 | |
| 367 | return pm_ipi_send_sync(primary_proc, payload, function, 1); |
| 368 | } |
| 369 | |
| 370 | /** |
| 371 | * pm_pinctrl_set_pin_param() - Set configuration parameter for the pin |
| 372 | * @pin Pin ID |
| 373 | * @param Parameter ID |
| 374 | * @value Parameter value |
| 375 | * |
| 376 | * @return Returns status, either success or error+reason |
| 377 | */ |
| 378 | enum pm_ret_status pm_pinctrl_set_pin_param(uint32_t pin, uint32_t param, |
| 379 | uint32_t value) |
| 380 | { |
| 381 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 382 | |
| 383 | /* Send request to the PMC */ |
| 384 | PM_PACK_PAYLOAD4(payload, LIBPM_MODULE_ID, PM_PINCTRL_CONFIG_PARAM_SET, |
| 385 | pin, param, value); |
| 386 | |
| 387 | return pm_ipi_send_sync(primary_proc, payload, NULL, 0); |
| 388 | } |
| 389 | |
| 390 | /** |
| 391 | * pm_pinctrl_get_pin_param() - Get configuration parameter value for the pin |
| 392 | * @pin Pin ID |
| 393 | * @param Parameter ID |
| 394 | * @value Buffer to store parameter value |
| 395 | * |
| 396 | * @return Returns status, either success or error+reason |
| 397 | */ |
| 398 | enum pm_ret_status pm_pinctrl_get_pin_param(uint32_t pin, uint32_t param, |
| 399 | uint32_t *value) |
| 400 | { |
| 401 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 402 | |
| 403 | /* Send request to the PMC */ |
| 404 | PM_PACK_PAYLOAD3(payload, LIBPM_MODULE_ID, PM_PINCTRL_CONFIG_PARAM_GET, |
| 405 | pin, param); |
| 406 | |
| 407 | return pm_ipi_send_sync(primary_proc, payload, value, 1); |
| 408 | } |
Tejas Patel | 1f56fb1 | 2019-01-08 01:46:40 -0800 | [diff] [blame] | 409 | |
| 410 | /** |
| 411 | * pm_clock_enable() - Enable the clock |
| 412 | * @clk_id Clock ID |
| 413 | * |
| 414 | * @return Returns status, either success or error+reason |
| 415 | */ |
| 416 | enum pm_ret_status pm_clock_enable(uint32_t clk_id) |
| 417 | { |
| 418 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 419 | |
| 420 | /* Send request to the PMC */ |
| 421 | PM_PACK_PAYLOAD2(payload, LIBPM_MODULE_ID, PM_CLOCK_ENABLE, clk_id); |
| 422 | |
| 423 | return pm_ipi_send_sync(primary_proc, payload, NULL, 0); |
| 424 | } |
| 425 | |
| 426 | /** |
| 427 | * pm_clock_disable() - Disable the clock |
| 428 | * @clk_id Clock ID |
| 429 | * |
| 430 | * @return Returns status, either success or error+reason |
| 431 | */ |
| 432 | enum pm_ret_status pm_clock_disable(uint32_t clk_id) |
| 433 | { |
| 434 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 435 | |
| 436 | /* Send request to the PMC */ |
| 437 | PM_PACK_PAYLOAD2(payload, LIBPM_MODULE_ID, PM_CLOCK_DISABLE, clk_id); |
| 438 | |
| 439 | return pm_ipi_send_sync(primary_proc, payload, NULL, 0); |
| 440 | } |
| 441 | |
| 442 | /** |
| 443 | * pm_clock_get_state() - Get clock status |
| 444 | * @clk_id Clock ID |
| 445 | * @state: Buffer to store clock status (1: Enabled, 0:Disabled) |
| 446 | * |
| 447 | * @return Returns status, either success or error+reason |
| 448 | */ |
| 449 | enum pm_ret_status pm_clock_get_state(uint32_t clk_id, uint32_t *state) |
| 450 | { |
| 451 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 452 | |
| 453 | /* Send request to the PMC */ |
| 454 | PM_PACK_PAYLOAD2(payload, LIBPM_MODULE_ID, PM_CLOCK_GETSTATE, clk_id); |
| 455 | |
| 456 | return pm_ipi_send_sync(primary_proc, payload, state, 1); |
| 457 | } |
| 458 | |
| 459 | /** |
| 460 | * pm_clock_set_divider() - Set divider for the clock |
| 461 | * @clk_id Clock ID |
| 462 | * @divider Divider value |
| 463 | * |
| 464 | * @return Returns status, either success or error+reason |
| 465 | */ |
| 466 | enum pm_ret_status pm_clock_set_divider(uint32_t clk_id, uint32_t divider) |
| 467 | { |
| 468 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 469 | |
| 470 | /* Send request to the PMC */ |
| 471 | PM_PACK_PAYLOAD3(payload, LIBPM_MODULE_ID, PM_CLOCK_SETDIVIDER, clk_id, |
| 472 | divider); |
| 473 | |
| 474 | return pm_ipi_send_sync(primary_proc, payload, NULL, 0); |
| 475 | } |
| 476 | |
| 477 | /** |
| 478 | * pm_clock_get_divider() - Get divider value for the clock |
| 479 | * @clk_id Clock ID |
| 480 | * @divider: Buffer to store clock divider value |
| 481 | * |
| 482 | * @return Returns status, either success or error+reason |
| 483 | */ |
| 484 | enum pm_ret_status pm_clock_get_divider(uint32_t clk_id, uint32_t *divider) |
| 485 | { |
| 486 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 487 | |
| 488 | /* Send request to the PMC */ |
| 489 | PM_PACK_PAYLOAD2(payload, LIBPM_MODULE_ID, PM_CLOCK_GETDIVIDER, clk_id); |
| 490 | |
| 491 | return pm_ipi_send_sync(primary_proc, payload, divider, 1); |
| 492 | } |
| 493 | |
| 494 | /** |
| 495 | * pm_clock_set_parent() - Set parent for the clock |
| 496 | * @clk_id Clock ID |
| 497 | * @parent Parent ID |
| 498 | * |
| 499 | * @return Returns status, either success or error+reason |
| 500 | */ |
| 501 | enum pm_ret_status pm_clock_set_parent(uint32_t clk_id, uint32_t parent) |
| 502 | { |
| 503 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 504 | |
| 505 | /* Send request to the PMC */ |
| 506 | PM_PACK_PAYLOAD3(payload, LIBPM_MODULE_ID, PM_CLOCK_SETPARENT, clk_id, |
| 507 | parent); |
| 508 | |
| 509 | return pm_ipi_send_sync(primary_proc, payload, NULL, 0); |
| 510 | } |
| 511 | |
| 512 | /** |
| 513 | * pm_clock_get_parent() - Get parent value for the clock |
| 514 | * @clk_id Clock ID |
| 515 | * @parent: Buffer to store clock parent value |
| 516 | * |
| 517 | * @return Returns status, either success or error+reason |
| 518 | */ |
| 519 | enum pm_ret_status pm_clock_get_parent(uint32_t clk_id, uint32_t *parent) |
| 520 | { |
| 521 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 522 | |
| 523 | /* Send request to the PMC */ |
| 524 | PM_PACK_PAYLOAD2(payload, LIBPM_MODULE_ID, PM_CLOCK_GETPARENT, clk_id); |
| 525 | |
| 526 | return pm_ipi_send_sync(primary_proc, payload, parent, 1); |
| 527 | } |
Tejas Patel | 023116d | 2019-01-08 01:46:41 -0800 | [diff] [blame] | 528 | |
| 529 | /** |
| 530 | * pm_pll_set_param() - Set PLL parameter |
| 531 | * @clk_id PLL clock ID |
| 532 | * @param PLL parameter ID |
| 533 | * @value Value to set for PLL parameter |
| 534 | * |
| 535 | * @return Returns status, either success or error+reason |
| 536 | */ |
| 537 | enum pm_ret_status pm_pll_set_param(uint32_t clk_id, uint32_t param, |
| 538 | uint32_t value) |
| 539 | { |
| 540 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 541 | |
| 542 | /* Send request to the PMC */ |
| 543 | PM_PACK_PAYLOAD4(payload, LIBPM_MODULE_ID, PM_PLL_SET_PARAMETER, clk_id, |
| 544 | param, value); |
| 545 | |
| 546 | return pm_ipi_send_sync(primary_proc, payload, NULL, 0); |
| 547 | } |
| 548 | |
| 549 | /** |
| 550 | * pm_pll_get_param() - Get PLL parameter value |
| 551 | * @clk_id PLL clock ID |
| 552 | * @param PLL parameter ID |
| 553 | * @value: Buffer to store PLL parameter value |
| 554 | * |
| 555 | * @return Returns status, either success or error+reason |
| 556 | */ |
| 557 | enum pm_ret_status pm_pll_get_param(uint32_t clk_id, uint32_t param, |
| 558 | uint32_t *value) |
| 559 | { |
| 560 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 561 | |
| 562 | /* Send request to the PMC */ |
| 563 | PM_PACK_PAYLOAD3(payload, LIBPM_MODULE_ID, PM_PLL_GET_PARAMETER, clk_id, |
| 564 | param); |
| 565 | |
| 566 | return pm_ipi_send_sync(primary_proc, payload, value, 1); |
| 567 | } |
| 568 | |
| 569 | /** |
| 570 | * pm_pll_set_mode() - Set PLL mode |
| 571 | * @clk_id PLL clock ID |
| 572 | * @mode PLL mode |
| 573 | * |
| 574 | * @return Returns status, either success or error+reason |
| 575 | */ |
| 576 | enum pm_ret_status pm_pll_set_mode(uint32_t clk_id, uint32_t mode) |
| 577 | { |
| 578 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 579 | |
| 580 | /* Send request to the PMC */ |
| 581 | PM_PACK_PAYLOAD3(payload, LIBPM_MODULE_ID, PM_PLL_SET_MODE, clk_id, |
| 582 | mode); |
| 583 | |
| 584 | return pm_ipi_send_sync(primary_proc, payload, NULL, 0); |
| 585 | } |
| 586 | |
| 587 | /** |
| 588 | * pm_pll_get_mode() - Get PLL mode |
| 589 | * @clk_id PLL clock ID |
| 590 | * @mode: Buffer to store PLL mode |
| 591 | * |
| 592 | * @return Returns status, either success or error+reason |
| 593 | */ |
| 594 | enum pm_ret_status pm_pll_get_mode(uint32_t clk_id, uint32_t *mode) |
| 595 | { |
| 596 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 597 | |
| 598 | /* Send request to the PMC */ |
| 599 | PM_PACK_PAYLOAD2(payload, LIBPM_MODULE_ID, PM_PLL_GET_MODE, clk_id); |
| 600 | |
| 601 | return pm_ipi_send_sync(primary_proc, payload, mode, 1); |
| 602 | } |
Tejas Patel | 6b28225 | 2019-01-10 03:03:47 -0800 | [diff] [blame] | 603 | |
| 604 | /** |
| 605 | * pm_force_powerdown() - PM call to request for another PU or subsystem to |
| 606 | * be powered down forcefully |
| 607 | * @target Device ID of the PU node to be forced powered down. |
| 608 | * @ack Flag to specify whether acknowledge is requested |
| 609 | * |
| 610 | * @return Returns status, either success or error+reason |
| 611 | */ |
| 612 | enum pm_ret_status pm_force_powerdown(uint32_t target, uint8_t ack) |
| 613 | { |
| 614 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 615 | |
| 616 | /* Send request to the PMC */ |
| 617 | PM_PACK_PAYLOAD3(payload, LIBPM_MODULE_ID, PM_FORCE_POWERDOWN, target, |
| 618 | ack); |
| 619 | |
| 620 | if (ack == IPI_BLOCKING) |
| 621 | return pm_ipi_send_sync(primary_proc, payload, NULL, 0); |
| 622 | else |
| 623 | return pm_ipi_send(primary_proc, payload); |
| 624 | } |
| 625 | |
| 626 | /** |
| 627 | * pm_system_shutdown() - PM call to request a system shutdown or restart |
| 628 | * @type Shutdown or restart? 0=shutdown, 1=restart |
| 629 | * @subtype Scope: 0=APU-subsystem, 1=PS, 2=system |
| 630 | * |
| 631 | * @return Returns status, either success or error+reason |
| 632 | */ |
| 633 | enum pm_ret_status pm_system_shutdown(uint32_t type, uint32_t subtype) |
| 634 | { |
| 635 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 636 | |
| 637 | /* Send request to the PMC */ |
| 638 | PM_PACK_PAYLOAD3(payload, LIBPM_MODULE_ID, PM_SYSTEM_SHUTDOWN, type, |
| 639 | subtype); |
| 640 | |
| 641 | return pm_ipi_send_non_blocking(primary_proc, payload); |
| 642 | } |
Tejas Patel | 9141f44 | 2019-01-10 03:03:48 -0800 | [diff] [blame] | 643 | |
| 644 | /** |
Tejas Patel | a3e34ad | 2019-02-01 17:25:19 +0530 | [diff] [blame] | 645 | * pm_query_data() - PM API for querying firmware data |
| 646 | * @qid The type of data to query |
| 647 | * @arg1 Argument 1 to requested query data call |
| 648 | * @arg2 Argument 2 to requested query data call |
| 649 | * @arg3 Argument 3 to requested query data call |
| 650 | * @data Returned output data |
| 651 | * |
| 652 | * This function returns requested data. |
| 653 | */ |
| 654 | enum pm_ret_status pm_query_data(uint32_t qid, uint32_t arg1, uint32_t arg2, |
| 655 | uint32_t arg3, uint32_t *data) |
| 656 | { |
| 657 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 658 | |
| 659 | /* Send request to the PMC */ |
| 660 | PM_PACK_PAYLOAD5(payload, LIBPM_MODULE_ID, PM_QUERY_DATA, qid, arg1, |
| 661 | arg2, arg3); |
| 662 | return pm_ipi_send_sync(primary_proc, payload, data, 4); |
| 663 | } |
| 664 | /** |
Tejas Patel | 9141f44 | 2019-01-10 03:03:48 -0800 | [diff] [blame] | 665 | * pm_api_ioctl() - PM IOCTL API for device control and configs |
| 666 | * @device_id Device ID |
| 667 | * @ioctl_id ID of the requested IOCTL |
| 668 | * @arg1 Argument 1 to requested IOCTL call |
| 669 | * @arg2 Argument 2 to requested IOCTL call |
| 670 | * @value Returned output value |
| 671 | * |
| 672 | * This function calls IOCTL to firmware for device control and configuration. |
| 673 | * |
| 674 | * @return Returns status, either success or error+reason |
| 675 | */ |
| 676 | enum pm_ret_status pm_api_ioctl(uint32_t device_id, uint32_t ioctl_id, |
| 677 | uint32_t arg1, uint32_t arg2, uint32_t *value) |
| 678 | { |
| 679 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 680 | |
| 681 | switch (ioctl_id) { |
| 682 | case IOCTL_SET_PLL_FRAC_MODE: |
| 683 | return pm_pll_set_mode(arg1, arg2); |
| 684 | case IOCTL_GET_PLL_FRAC_MODE: |
| 685 | return pm_pll_get_mode(arg1, value); |
| 686 | case IOCTL_SET_PLL_FRAC_DATA: |
| 687 | return pm_pll_set_param(arg1, PM_PLL_PARAM_DATA, arg2); |
| 688 | case IOCTL_GET_PLL_FRAC_DATA: |
| 689 | return pm_pll_get_param(arg1, PM_PLL_PARAM_DATA, value); |
| 690 | default: |
| 691 | /* Send request to the PMC */ |
| 692 | PM_PACK_PAYLOAD5(payload, LIBPM_MODULE_ID, PM_IOCTL, device_id, |
| 693 | ioctl_id, arg1, arg2); |
| 694 | return pm_ipi_send_sync(primary_proc, payload, value, 1); |
| 695 | } |
| 696 | } |