Soren Brinkmann | 76fcae3 | 2016-03-06 20:16:27 -0800 | [diff] [blame] | 1 | /* |
Ronak Jain | 52de594 | 2022-01-20 23:11:18 -0800 | [diff] [blame] | 2 | * Copyright (c) 2013-2022, ARM Limited and Contributors. All rights reserved. |
Soren Brinkmann | 76fcae3 | 2016-03-06 20:16:27 -0800 | [diff] [blame] | 3 | * |
dp-arm | fa3cf0b | 2017-05-03 09:38:09 +0100 | [diff] [blame] | 4 | * SPDX-License-Identifier: BSD-3-Clause |
Soren Brinkmann | 76fcae3 | 2016-03-06 20:16:27 -0800 | [diff] [blame] | 5 | */ |
| 6 | |
| 7 | /* |
| 8 | * ZynqMP system level PM-API functions and communication with PMU via |
| 9 | * IPI interrupts |
| 10 | */ |
| 11 | |
| 12 | #include <arch_helpers.h> |
Antonio Nino Diaz | e0f9063 | 2018-12-14 00:18:21 +0000 | [diff] [blame] | 13 | #include <plat/common/platform.h> |
| 14 | |
Rajan Vaja | 3511613 | 2018-01-17 02:39:25 -0800 | [diff] [blame] | 15 | #include "pm_api_clock.h" |
Rajan Vaja | 5529a01 | 2018-01-17 02:39:23 -0800 | [diff] [blame] | 16 | #include "pm_api_ioctl.h" |
Rajan Vaja | 0ac2be1 | 2018-01-17 02:39:21 -0800 | [diff] [blame] | 17 | #include "pm_api_pinctrl.h" |
Isla Mitchell | e363146 | 2017-07-14 10:46:32 +0100 | [diff] [blame] | 18 | #include "pm_api_sys.h" |
Soren Brinkmann | 76fcae3 | 2016-03-06 20:16:27 -0800 | [diff] [blame] | 19 | #include "pm_client.h" |
Soren Brinkmann | 76fcae3 | 2016-03-06 20:16:27 -0800 | [diff] [blame] | 20 | #include "pm_common.h" |
Isla Mitchell | e363146 | 2017-07-14 10:46:32 +0100 | [diff] [blame] | 21 | #include "pm_ipi.h" |
Soren Brinkmann | 76fcae3 | 2016-03-06 20:16:27 -0800 | [diff] [blame] | 22 | |
Ronak Jain | 325bad1 | 2021-12-21 01:39:59 -0800 | [diff] [blame] | 23 | #define PM_QUERY_FEATURE_BITMASK ( \ |
| 24 | (1ULL << (uint64_t)PM_QID_CLOCK_GET_NAME) | \ |
| 25 | (1ULL << (uint64_t)PM_QID_CLOCK_GET_TOPOLOGY) | \ |
| 26 | (1ULL << (uint64_t)PM_QID_CLOCK_GET_FIXEDFACTOR_PARAMS) | \ |
| 27 | (1ULL << (uint64_t)PM_QID_CLOCK_GET_PARENTS) | \ |
| 28 | (1ULL << (uint64_t)PM_QID_CLOCK_GET_ATTRIBUTES) | \ |
| 29 | (1ULL << (uint64_t)PM_QID_PINCTRL_GET_NUM_PINS) | \ |
| 30 | (1ULL << (uint64_t)PM_QID_PINCTRL_GET_NUM_FUNCTIONS) | \ |
| 31 | (1ULL << (uint64_t)PM_QID_PINCTRL_GET_NUM_FUNCTION_GROUPS) | \ |
| 32 | (1ULL << (uint64_t)PM_QID_PINCTRL_GET_FUNCTION_NAME) | \ |
| 33 | (1ULL << (uint64_t)PM_QID_PINCTRL_GET_FUNCTION_GROUPS) | \ |
| 34 | (1ULL << (uint64_t)PM_QID_PINCTRL_GET_PIN_GROUPS) | \ |
| 35 | (1ULL << (uint64_t)PM_QID_CLOCK_GET_NUM_CLOCKS) | \ |
| 36 | (1ULL << (uint64_t)PM_QID_CLOCK_GET_MAX_DIVISOR)) |
| 37 | |
| 38 | /** |
| 39 | * struct eemi_api_dependency - Dependent EEMI APIs which are implemented |
| 40 | * on both the ATF and firmware |
| 41 | * |
| 42 | * @id: EEMI API id or IOCTL id to be checked |
| 43 | * @api_id: Dependent EEMI API |
| 44 | */ |
| 45 | typedef struct __attribute__((packed)) { |
| 46 | uint8_t id; |
| 47 | uint8_t api_id; |
| 48 | } eemi_api_dependency; |
| 49 | |
| 50 | /* Dependent APIs for ATF to check their version from firmware */ |
| 51 | static const eemi_api_dependency api_dep_table[] = { |
| 52 | { |
| 53 | .id = PM_SELF_SUSPEND, |
| 54 | .api_id = PM_SELF_SUSPEND, |
| 55 | }, |
| 56 | { |
| 57 | .id = PM_REQ_WAKEUP, |
| 58 | .api_id = PM_REQ_WAKEUP, |
| 59 | }, |
| 60 | { |
| 61 | .id = PM_ABORT_SUSPEND, |
| 62 | .api_id = PM_ABORT_SUSPEND, |
| 63 | }, |
| 64 | { |
| 65 | .id = PM_SET_WAKEUP_SOURCE, |
| 66 | .api_id = PM_SET_WAKEUP_SOURCE, |
| 67 | }, |
| 68 | { |
| 69 | .id = PM_SYSTEM_SHUTDOWN, |
| 70 | .api_id = PM_SYSTEM_SHUTDOWN, |
| 71 | }, |
| 72 | { |
| 73 | .id = PM_GET_API_VERSION, |
| 74 | .api_id = PM_GET_API_VERSION, |
| 75 | }, |
| 76 | { |
| 77 | .id = PM_CLOCK_ENABLE, |
| 78 | .api_id = PM_PLL_SET_MODE, |
| 79 | }, |
| 80 | { |
| 81 | .id = PM_CLOCK_ENABLE, |
| 82 | .api_id = PM_CLOCK_ENABLE, |
| 83 | }, |
| 84 | { |
| 85 | .id = PM_CLOCK_DISABLE, |
| 86 | .api_id = PM_PLL_SET_MODE, |
| 87 | }, |
| 88 | { |
| 89 | .id = PM_CLOCK_DISABLE, |
| 90 | .api_id = PM_CLOCK_DISABLE, |
| 91 | }, |
| 92 | { |
| 93 | .id = PM_CLOCK_GETSTATE, |
| 94 | .api_id = PM_PLL_GET_MODE, |
| 95 | }, |
| 96 | { |
| 97 | .id = PM_CLOCK_GETSTATE, |
| 98 | .api_id = PM_CLOCK_GETSTATE, |
| 99 | }, |
| 100 | { |
| 101 | .id = PM_CLOCK_SETDIVIDER, |
| 102 | .api_id = PM_PLL_SET_PARAMETER, |
| 103 | }, |
| 104 | { |
| 105 | .id = PM_CLOCK_SETDIVIDER, |
| 106 | .api_id = PM_CLOCK_SETDIVIDER, |
| 107 | }, |
| 108 | { |
| 109 | .id = PM_CLOCK_GETDIVIDER, |
| 110 | .api_id = PM_PLL_GET_PARAMETER, |
| 111 | }, |
| 112 | { |
| 113 | .id = PM_CLOCK_GETDIVIDER, |
| 114 | .api_id = PM_CLOCK_GETDIVIDER, |
| 115 | }, |
| 116 | { |
| 117 | .id = PM_CLOCK_SETPARENT, |
| 118 | .api_id = PM_PLL_SET_PARAMETER, |
| 119 | }, |
| 120 | { |
| 121 | .id = PM_CLOCK_SETPARENT, |
| 122 | .api_id = PM_CLOCK_SETPARENT, |
| 123 | }, |
| 124 | { |
| 125 | .id = PM_CLOCK_GETPARENT, |
| 126 | .api_id = PM_PLL_GET_PARAMETER, |
| 127 | }, |
| 128 | { |
| 129 | .id = PM_CLOCK_GETPARENT, |
| 130 | .api_id = PM_CLOCK_GETPARENT, |
| 131 | }, |
| 132 | { |
| 133 | .id = PM_PLL_SET_PARAMETER, |
| 134 | .api_id = PM_PLL_SET_PARAMETER, |
| 135 | }, |
| 136 | { |
| 137 | .id = PM_PLL_GET_PARAMETER, |
| 138 | .api_id = PM_PLL_GET_PARAMETER, |
| 139 | }, |
| 140 | { |
| 141 | .id = PM_PLL_SET_MODE, |
| 142 | .api_id = PM_PLL_SET_MODE, |
| 143 | }, |
| 144 | { |
| 145 | .id = PM_PLL_GET_MODE, |
| 146 | .api_id = PM_PLL_GET_MODE, |
| 147 | }, |
| 148 | { |
| 149 | .id = PM_REGISTER_ACCESS, |
| 150 | .api_id = PM_MMIO_WRITE, |
| 151 | }, |
| 152 | { |
| 153 | .id = PM_REGISTER_ACCESS, |
| 154 | .api_id = PM_MMIO_READ, |
| 155 | }, |
| 156 | { |
| 157 | .id = PM_FEATURE_CHECK, |
| 158 | .api_id = PM_FEATURE_CHECK, |
| 159 | }, |
| 160 | { |
| 161 | .id = IOCTL_SET_TAPDELAY_BYPASS, |
| 162 | .api_id = PM_MMIO_WRITE, |
| 163 | }, |
| 164 | { |
| 165 | .id = IOCTL_SET_SGMII_MODE, |
| 166 | .api_id = PM_MMIO_WRITE, |
| 167 | }, |
| 168 | { |
| 169 | .id = IOCTL_SD_DLL_RESET, |
| 170 | .api_id = PM_MMIO_WRITE, |
| 171 | }, |
| 172 | { |
| 173 | .id = IOCTL_SET_SD_TAPDELAY, |
| 174 | .api_id = PM_MMIO_WRITE, |
| 175 | }, |
| 176 | { |
| 177 | .id = IOCTL_SET_SD_TAPDELAY, |
| 178 | .api_id = PM_MMIO_READ, |
| 179 | }, |
| 180 | { |
| 181 | .id = IOCTL_SET_PLL_FRAC_DATA, |
| 182 | .api_id = PM_PLL_SET_PARAMETER, |
| 183 | }, |
| 184 | { |
| 185 | .id = IOCTL_GET_PLL_FRAC_DATA, |
| 186 | .api_id = PM_PLL_GET_PARAMETER, |
| 187 | }, |
| 188 | { |
| 189 | .id = IOCTL_WRITE_GGS, |
| 190 | .api_id = PM_MMIO_WRITE, |
| 191 | }, |
| 192 | { |
| 193 | .id = IOCTL_READ_GGS, |
| 194 | .api_id = PM_MMIO_READ, |
| 195 | }, |
| 196 | { |
| 197 | .id = IOCTL_WRITE_PGGS, |
| 198 | .api_id = PM_MMIO_WRITE, |
| 199 | }, |
| 200 | { |
| 201 | .id = IOCTL_READ_PGGS, |
| 202 | .api_id = PM_MMIO_READ, |
| 203 | }, |
| 204 | { |
| 205 | .id = IOCTL_ULPI_RESET, |
| 206 | .api_id = PM_MMIO_WRITE, |
| 207 | }, |
| 208 | { |
| 209 | .id = IOCTL_SET_BOOT_HEALTH_STATUS, |
| 210 | .api_id = PM_MMIO_WRITE, |
| 211 | }, |
| 212 | { |
| 213 | .id = IOCTL_AFI, |
| 214 | .api_id = PM_MMIO_WRITE, |
| 215 | }, |
| 216 | }; |
| 217 | |
| 218 | /* Expected firmware API version to ATF */ |
| 219 | static const uint8_t atf_expected_ver_id[] = { |
| 220 | [PM_SELF_SUSPEND] = FW_API_BASE_VERSION, |
| 221 | [PM_REQ_WAKEUP] = FW_API_BASE_VERSION, |
| 222 | [PM_ABORT_SUSPEND] = FW_API_BASE_VERSION, |
| 223 | [PM_SET_WAKEUP_SOURCE] = FW_API_BASE_VERSION, |
| 224 | [PM_SYSTEM_SHUTDOWN] = FW_API_BASE_VERSION, |
| 225 | [PM_GET_API_VERSION] = FW_API_BASE_VERSION, |
| 226 | [PM_PLL_SET_MODE] = FW_API_BASE_VERSION, |
| 227 | [PM_PLL_GET_MODE] = FW_API_BASE_VERSION, |
| 228 | [PM_CLOCK_ENABLE] = FW_API_BASE_VERSION, |
| 229 | [PM_CLOCK_DISABLE] = FW_API_BASE_VERSION, |
| 230 | [PM_CLOCK_GETSTATE] = FW_API_BASE_VERSION, |
| 231 | [PM_PLL_SET_PARAMETER] = FW_API_BASE_VERSION, |
| 232 | [PM_PLL_GET_PARAMETER] = FW_API_BASE_VERSION, |
| 233 | [PM_CLOCK_SETDIVIDER] = FW_API_BASE_VERSION, |
| 234 | [PM_CLOCK_GETDIVIDER] = FW_API_BASE_VERSION, |
| 235 | [PM_CLOCK_SETPARENT] = FW_API_BASE_VERSION, |
| 236 | [PM_CLOCK_GETPARENT] = FW_API_BASE_VERSION, |
| 237 | [PM_MMIO_WRITE] = FW_API_BASE_VERSION, |
| 238 | [PM_MMIO_READ] = FW_API_BASE_VERSION, |
| 239 | [PM_FEATURE_CHECK] = FW_API_VERSION_2, |
| 240 | }; |
| 241 | |
Siva Durga Prasad Paladugu | 1f80d3f | 2018-04-30 15:56:10 +0530 | [diff] [blame] | 242 | /* default shutdown/reboot scope is system(2) */ |
| 243 | static unsigned int pm_shutdown_scope = PMF_SHUTDOWN_SUBTYPE_SYSTEM; |
| 244 | |
| 245 | /** |
| 246 | * pm_get_shutdown_scope() - Get the currently set shutdown scope |
| 247 | * |
| 248 | * @return Shutdown scope value |
| 249 | */ |
| 250 | unsigned int pm_get_shutdown_scope(void) |
| 251 | { |
| 252 | return pm_shutdown_scope; |
| 253 | } |
| 254 | |
Venkatesh Yadav Abbarapu | 7ace4af | 2020-11-23 04:26:54 -0800 | [diff] [blame] | 255 | #define EM_PACK_PAYLOAD1(pl, arg0) { \ |
| 256 | pl[0] = (uint16_t)(0xE) << 16 | (uint16_t)arg0; \ |
| 257 | } |
| 258 | |
Soren Brinkmann | 76fcae3 | 2016-03-06 20:16:27 -0800 | [diff] [blame] | 259 | /** |
| 260 | * pm_self_suspend() - PM call for processor to suspend itself |
| 261 | * @nid Node id of the processor or subsystem |
| 262 | * @latency Requested maximum wakeup latency (not supported) |
Filip Drazic | 0bd9d0c | 2016-07-20 17:17:39 +0200 | [diff] [blame] | 263 | * @state Requested state |
Soren Brinkmann | 76fcae3 | 2016-03-06 20:16:27 -0800 | [diff] [blame] | 264 | * @address Resume address |
| 265 | * |
| 266 | * This is a blocking call, it will return only once PMU has responded. |
| 267 | * On a wakeup, resume address will be automatically set by PMU. |
| 268 | * |
| 269 | * @return Returns status, either success or error+reason |
| 270 | */ |
| 271 | enum pm_ret_status pm_self_suspend(enum pm_node_id nid, |
| 272 | unsigned int latency, |
| 273 | unsigned int state, |
| 274 | uintptr_t address) |
| 275 | { |
| 276 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 277 | unsigned int cpuid = plat_my_core_pos(); |
| 278 | const struct pm_proc *proc = pm_get_proc(cpuid); |
| 279 | |
| 280 | /* |
| 281 | * Do client specific suspend operations |
| 282 | * (e.g. set powerdown request bit) |
| 283 | */ |
Filip Drazic | 4c0765a | 2016-07-26 12:11:33 +0200 | [diff] [blame] | 284 | pm_client_suspend(proc, state); |
Soren Brinkmann | 76fcae3 | 2016-03-06 20:16:27 -0800 | [diff] [blame] | 285 | /* Send request to the PMU */ |
| 286 | PM_PACK_PAYLOAD6(payload, PM_SELF_SUSPEND, proc->node_id, latency, |
| 287 | state, address, (address >> 32)); |
Soren Brinkmann | d6c9e03 | 2016-09-22 11:35:47 -0700 | [diff] [blame] | 288 | return pm_ipi_send_sync(proc, payload, NULL, 0); |
Soren Brinkmann | 76fcae3 | 2016-03-06 20:16:27 -0800 | [diff] [blame] | 289 | } |
| 290 | |
| 291 | /** |
| 292 | * pm_req_suspend() - PM call to request for another PU or subsystem to |
| 293 | * be suspended gracefully. |
| 294 | * @target Node id of the targeted PU or subsystem |
| 295 | * @ack Flag to specify whether acknowledge is requested |
| 296 | * @latency Requested wakeup latency (not supported) |
| 297 | * @state Requested state (not supported) |
| 298 | * |
| 299 | * @return Returns status, either success or error+reason |
| 300 | */ |
| 301 | enum pm_ret_status pm_req_suspend(enum pm_node_id target, |
| 302 | enum pm_request_ack ack, |
| 303 | unsigned int latency, unsigned int state) |
| 304 | { |
| 305 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 306 | |
| 307 | /* Send request to the PMU */ |
| 308 | PM_PACK_PAYLOAD5(payload, PM_REQ_SUSPEND, target, ack, latency, state); |
| 309 | if (ack == REQ_ACK_BLOCKING) |
Soren Brinkmann | d6c9e03 | 2016-09-22 11:35:47 -0700 | [diff] [blame] | 310 | return pm_ipi_send_sync(primary_proc, payload, NULL, 0); |
Soren Brinkmann | 76fcae3 | 2016-03-06 20:16:27 -0800 | [diff] [blame] | 311 | else |
| 312 | return pm_ipi_send(primary_proc, payload); |
| 313 | } |
| 314 | |
| 315 | /** |
| 316 | * pm_req_wakeup() - PM call for processor to wake up selected processor |
| 317 | * or subsystem |
| 318 | * @target Node id of the processor or subsystem to wake up |
| 319 | * @ack Flag to specify whether acknowledge requested |
| 320 | * @set_address Resume address presence indicator |
| 321 | * 1 resume address specified, 0 otherwise |
| 322 | * @address Resume address |
| 323 | * |
| 324 | * This API function is either used to power up another APU core for SMP |
| 325 | * (by PSCI) or to power up an entirely different PU or subsystem, such |
| 326 | * as RPU0, RPU, or PL_CORE_xx. Resume address for the target PU will be |
| 327 | * automatically set by PMU. |
| 328 | * |
| 329 | * @return Returns status, either success or error+reason |
| 330 | */ |
| 331 | enum pm_ret_status pm_req_wakeup(enum pm_node_id target, |
| 332 | unsigned int set_address, |
| 333 | uintptr_t address, |
| 334 | enum pm_request_ack ack) |
| 335 | { |
| 336 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 337 | uint64_t encoded_address; |
Soren Brinkmann | 76fcae3 | 2016-03-06 20:16:27 -0800 | [diff] [blame] | 338 | |
Soren Brinkmann | 76fcae3 | 2016-03-06 20:16:27 -0800 | [diff] [blame] | 339 | |
| 340 | /* encode set Address into 1st bit of address */ |
| 341 | encoded_address = address; |
| 342 | encoded_address |= !!set_address; |
| 343 | |
| 344 | /* Send request to the PMU to perform the wake of the PU */ |
| 345 | PM_PACK_PAYLOAD5(payload, PM_REQ_WAKEUP, target, encoded_address, |
| 346 | encoded_address >> 32, ack); |
| 347 | |
| 348 | if (ack == REQ_ACK_BLOCKING) |
Soren Brinkmann | d6c9e03 | 2016-09-22 11:35:47 -0700 | [diff] [blame] | 349 | return pm_ipi_send_sync(primary_proc, payload, NULL, 0); |
Soren Brinkmann | 76fcae3 | 2016-03-06 20:16:27 -0800 | [diff] [blame] | 350 | else |
| 351 | return pm_ipi_send(primary_proc, payload); |
| 352 | } |
| 353 | |
| 354 | /** |
| 355 | * pm_force_powerdown() - PM call to request for another PU or subsystem to |
| 356 | * be powered down forcefully |
| 357 | * @target Node id of the targeted PU or subsystem |
| 358 | * @ack Flag to specify whether acknowledge is requested |
| 359 | * |
| 360 | * @return Returns status, either success or error+reason |
| 361 | */ |
| 362 | enum pm_ret_status pm_force_powerdown(enum pm_node_id target, |
| 363 | enum pm_request_ack ack) |
| 364 | { |
| 365 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 366 | |
| 367 | /* Send request to the PMU */ |
| 368 | PM_PACK_PAYLOAD3(payload, PM_FORCE_POWERDOWN, target, ack); |
| 369 | |
| 370 | if (ack == REQ_ACK_BLOCKING) |
Soren Brinkmann | d6c9e03 | 2016-09-22 11:35:47 -0700 | [diff] [blame] | 371 | return pm_ipi_send_sync(primary_proc, payload, NULL, 0); |
Soren Brinkmann | 76fcae3 | 2016-03-06 20:16:27 -0800 | [diff] [blame] | 372 | else |
| 373 | return pm_ipi_send(primary_proc, payload); |
| 374 | } |
| 375 | |
| 376 | /** |
| 377 | * pm_abort_suspend() - PM call to announce that a prior suspend request |
| 378 | * is to be aborted. |
| 379 | * @reason Reason for the abort |
| 380 | * |
| 381 | * Calling PU expects the PMU to abort the initiated suspend procedure. |
| 382 | * This is a non-blocking call without any acknowledge. |
| 383 | * |
| 384 | * @return Returns status, either success or error+reason |
| 385 | */ |
| 386 | enum pm_ret_status pm_abort_suspend(enum pm_abort_reason reason) |
| 387 | { |
| 388 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 389 | |
| 390 | /* |
| 391 | * Do client specific abort suspend operations |
| 392 | * (e.g. enable interrupts and clear powerdown request bit) |
| 393 | */ |
| 394 | pm_client_abort_suspend(); |
| 395 | /* Send request to the PMU */ |
| 396 | /* TODO: allow passing the node ID of the affected CPU */ |
| 397 | PM_PACK_PAYLOAD3(payload, PM_ABORT_SUSPEND, reason, |
| 398 | primary_proc->node_id); |
Abhyuday Godhasara | 0d9b765 | 2021-06-24 05:49:04 -0700 | [diff] [blame] | 399 | return pm_ipi_send_sync(primary_proc, payload, NULL, 0); |
Soren Brinkmann | 76fcae3 | 2016-03-06 20:16:27 -0800 | [diff] [blame] | 400 | } |
| 401 | |
| 402 | /** |
| 403 | * pm_set_wakeup_source() - PM call to specify the wakeup source while suspended |
| 404 | * @target Node id of the targeted PU or subsystem |
| 405 | * @wkup_node Node id of the wakeup peripheral |
| 406 | * @enable Enable or disable the specified peripheral as wake source |
| 407 | * |
| 408 | * @return Returns status, either success or error+reason |
| 409 | */ |
| 410 | enum pm_ret_status pm_set_wakeup_source(enum pm_node_id target, |
| 411 | enum pm_node_id wkup_node, |
| 412 | unsigned int enable) |
| 413 | { |
| 414 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 415 | |
| 416 | PM_PACK_PAYLOAD4(payload, PM_SET_WAKEUP_SOURCE, target, wkup_node, |
| 417 | enable); |
Abhyuday Godhasara | 0d9b765 | 2021-06-24 05:49:04 -0700 | [diff] [blame] | 418 | return pm_ipi_send_sync(primary_proc, payload, NULL, 0); |
Soren Brinkmann | 76fcae3 | 2016-03-06 20:16:27 -0800 | [diff] [blame] | 419 | } |
| 420 | |
| 421 | /** |
| 422 | * pm_system_shutdown() - PM call to request a system shutdown or restart |
Siva Durga Prasad Paladugu | 1f80d3f | 2018-04-30 15:56:10 +0530 | [diff] [blame] | 423 | * @type Shutdown or restart? 0=shutdown, 1=restart, 2=setscope |
| 424 | * @subtype Scope: 0=APU-subsystem, 1=PS, 2=system |
Soren Brinkmann | 76fcae3 | 2016-03-06 20:16:27 -0800 | [diff] [blame] | 425 | * |
| 426 | * @return Returns status, either success or error+reason |
| 427 | */ |
Soren Brinkmann | 58fbb9b | 2016-09-02 09:50:54 -0700 | [diff] [blame] | 428 | enum pm_ret_status pm_system_shutdown(unsigned int type, unsigned int subtype) |
Soren Brinkmann | 76fcae3 | 2016-03-06 20:16:27 -0800 | [diff] [blame] | 429 | { |
| 430 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 431 | |
Siva Durga Prasad Paladugu | 1f80d3f | 2018-04-30 15:56:10 +0530 | [diff] [blame] | 432 | if (type == PMF_SHUTDOWN_TYPE_SETSCOPE_ONLY) { |
| 433 | /* Setting scope for subsequent PSCI reboot or shutdown */ |
| 434 | pm_shutdown_scope = subtype; |
| 435 | return PM_RET_SUCCESS; |
| 436 | } |
| 437 | |
Soren Brinkmann | 58fbb9b | 2016-09-02 09:50:54 -0700 | [diff] [blame] | 438 | PM_PACK_PAYLOAD3(payload, PM_SYSTEM_SHUTDOWN, type, subtype); |
Tejas Patel | af4b10e | 2018-02-09 02:42:59 -0800 | [diff] [blame] | 439 | return pm_ipi_send_non_blocking(primary_proc, payload); |
Soren Brinkmann | 76fcae3 | 2016-03-06 20:16:27 -0800 | [diff] [blame] | 440 | } |
| 441 | |
| 442 | /* APIs for managing PM slaves: */ |
| 443 | |
| 444 | /** |
| 445 | * pm_req_node() - PM call to request a node with specific capabilities |
| 446 | * @nid Node id of the slave |
| 447 | * @capabilities Requested capabilities of the slave |
| 448 | * @qos Quality of service (not supported) |
| 449 | * @ack Flag to specify whether acknowledge is requested |
| 450 | * |
| 451 | * @return Returns status, either success or error+reason |
| 452 | */ |
| 453 | enum pm_ret_status pm_req_node(enum pm_node_id nid, |
| 454 | unsigned int capabilities, |
| 455 | unsigned int qos, |
| 456 | enum pm_request_ack ack) |
| 457 | { |
| 458 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 459 | |
| 460 | PM_PACK_PAYLOAD5(payload, PM_REQ_NODE, nid, capabilities, qos, ack); |
| 461 | |
| 462 | if (ack == REQ_ACK_BLOCKING) |
Soren Brinkmann | d6c9e03 | 2016-09-22 11:35:47 -0700 | [diff] [blame] | 463 | return pm_ipi_send_sync(primary_proc, payload, NULL, 0); |
Soren Brinkmann | 76fcae3 | 2016-03-06 20:16:27 -0800 | [diff] [blame] | 464 | else |
| 465 | return pm_ipi_send(primary_proc, payload); |
| 466 | } |
| 467 | |
| 468 | /** |
| 469 | * pm_set_requirement() - PM call to set requirement for PM slaves |
| 470 | * @nid Node id of the slave |
| 471 | * @capabilities Requested capabilities of the slave |
| 472 | * @qos Quality of service (not supported) |
| 473 | * @ack Flag to specify whether acknowledge is requested |
| 474 | * |
| 475 | * This API function is to be used for slaves a PU already has requested |
| 476 | * |
| 477 | * @return Returns status, either success or error+reason |
| 478 | */ |
| 479 | enum pm_ret_status pm_set_requirement(enum pm_node_id nid, |
| 480 | unsigned int capabilities, |
| 481 | unsigned int qos, |
| 482 | enum pm_request_ack ack) |
| 483 | { |
| 484 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 485 | |
| 486 | PM_PACK_PAYLOAD5(payload, PM_SET_REQUIREMENT, nid, capabilities, qos, |
| 487 | ack); |
| 488 | |
| 489 | if (ack == REQ_ACK_BLOCKING) |
Soren Brinkmann | d6c9e03 | 2016-09-22 11:35:47 -0700 | [diff] [blame] | 490 | return pm_ipi_send_sync(primary_proc, payload, NULL, 0); |
Soren Brinkmann | 76fcae3 | 2016-03-06 20:16:27 -0800 | [diff] [blame] | 491 | else |
| 492 | return pm_ipi_send(primary_proc, payload); |
| 493 | } |
| 494 | |
Soren Brinkmann | 76fcae3 | 2016-03-06 20:16:27 -0800 | [diff] [blame] | 495 | /* Miscellaneous API functions */ |
| 496 | |
| 497 | /** |
| 498 | * pm_get_api_version() - Get version number of PMU PM firmware |
| 499 | * @version Returns 32-bit version number of PMU Power Management Firmware |
| 500 | * |
| 501 | * @return Returns status, either success or error+reason |
| 502 | */ |
| 503 | enum pm_ret_status pm_get_api_version(unsigned int *version) |
| 504 | { |
| 505 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 506 | |
| 507 | /* Send request to the PMU */ |
| 508 | PM_PACK_PAYLOAD1(payload, PM_GET_API_VERSION); |
Soren Brinkmann | d6c9e03 | 2016-09-22 11:35:47 -0700 | [diff] [blame] | 509 | return pm_ipi_send_sync(primary_proc, payload, version, 1); |
Soren Brinkmann | 76fcae3 | 2016-03-06 20:16:27 -0800 | [diff] [blame] | 510 | } |
| 511 | |
| 512 | /** |
Anes Hadziahmetagic | 1caf88e | 2017-01-27 18:42:44 +0100 | [diff] [blame] | 513 | * pm_get_node_status() - PM call to request a node's current status |
| 514 | * @nid Node id |
| 515 | * @ret_buff Buffer for the return values: |
| 516 | * [0] - Current power state of the node |
| 517 | * [1] - Current requirements for the node (slave nodes only) |
| 518 | * [2] - Current usage status for the node (slave nodes only) |
Soren Brinkmann | 76fcae3 | 2016-03-06 20:16:27 -0800 | [diff] [blame] | 519 | * |
| 520 | * @return Returns status, either success or error+reason |
| 521 | */ |
Anes Hadziahmetagic | 1caf88e | 2017-01-27 18:42:44 +0100 | [diff] [blame] | 522 | enum pm_ret_status pm_get_node_status(enum pm_node_id nid, |
| 523 | uint32_t *ret_buff) |
Soren Brinkmann | 76fcae3 | 2016-03-06 20:16:27 -0800 | [diff] [blame] | 524 | { |
Soren Brinkmann | 76fcae3 | 2016-03-06 20:16:27 -0800 | [diff] [blame] | 525 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 526 | |
| 527 | PM_PACK_PAYLOAD2(payload, PM_GET_NODE_STATUS, nid); |
Anes Hadziahmetagic | 1caf88e | 2017-01-27 18:42:44 +0100 | [diff] [blame] | 528 | return pm_ipi_send_sync(primary_proc, payload, ret_buff, 3); |
Soren Brinkmann | 76fcae3 | 2016-03-06 20:16:27 -0800 | [diff] [blame] | 529 | } |
| 530 | |
Soren Brinkmann | 76fcae3 | 2016-03-06 20:16:27 -0800 | [diff] [blame] | 531 | /** |
| 532 | * pm_mmio_write() - Perform write to protected mmio |
| 533 | * @address Address to write to |
| 534 | * @mask Mask to apply |
| 535 | * @value Value to write |
| 536 | * |
| 537 | * This function provides access to PM-related control registers |
| 538 | * that may not be directly accessible by a particular PU. |
| 539 | * |
| 540 | * @return Returns status, either success or error+reason |
| 541 | */ |
| 542 | enum pm_ret_status pm_mmio_write(uintptr_t address, |
| 543 | unsigned int mask, |
| 544 | unsigned int value) |
| 545 | { |
| 546 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 547 | |
| 548 | /* Send request to the PMU */ |
| 549 | PM_PACK_PAYLOAD4(payload, PM_MMIO_WRITE, address, mask, value); |
Soren Brinkmann | d6c9e03 | 2016-09-22 11:35:47 -0700 | [diff] [blame] | 550 | return pm_ipi_send_sync(primary_proc, payload, NULL, 0); |
Soren Brinkmann | 76fcae3 | 2016-03-06 20:16:27 -0800 | [diff] [blame] | 551 | } |
| 552 | |
| 553 | /** |
| 554 | * pm_mmio_read() - Read value from protected mmio |
| 555 | * @address Address to write to |
| 556 | * @value Value to write |
| 557 | * |
| 558 | * This function provides access to PM-related control registers |
| 559 | * that may not be directly accessible by a particular PU. |
| 560 | * |
| 561 | * @return Returns status, either success or error+reason |
| 562 | */ |
| 563 | enum pm_ret_status pm_mmio_read(uintptr_t address, unsigned int *value) |
| 564 | { |
| 565 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 566 | |
| 567 | /* Send request to the PMU */ |
| 568 | PM_PACK_PAYLOAD2(payload, PM_MMIO_READ, address); |
Soren Brinkmann | d6c9e03 | 2016-09-22 11:35:47 -0700 | [diff] [blame] | 569 | return pm_ipi_send_sync(primary_proc, payload, value, 1); |
Soren Brinkmann | 76fcae3 | 2016-03-06 20:16:27 -0800 | [diff] [blame] | 570 | } |
Nava kishore Manne | 68d460c | 2016-08-20 23:18:09 +0530 | [diff] [blame] | 571 | |
| 572 | /** |
| 573 | * pm_fpga_load() - Load the bitstream into the PL. |
| 574 | * |
| 575 | * This function provides access to the xilfpga library to load |
| 576 | * the Bit-stream into PL. |
| 577 | * |
| 578 | * address_low: lower 32-bit Linear memory space address |
| 579 | * |
| 580 | * address_high: higher 32-bit Linear memory space address |
| 581 | * |
| 582 | * size: Number of 32bit words |
| 583 | * |
| 584 | * @return Returns status, either success or error+reason |
| 585 | */ |
| 586 | enum pm_ret_status pm_fpga_load(uint32_t address_low, |
| 587 | uint32_t address_high, |
| 588 | uint32_t size, |
| 589 | uint32_t flags) |
| 590 | { |
| 591 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 592 | |
| 593 | /* Send request to the PMU */ |
| 594 | PM_PACK_PAYLOAD5(payload, PM_FPGA_LOAD, address_high, address_low, |
| 595 | size, flags); |
Siva Durga Prasad Paladugu | bf83b9c | 2018-02-07 13:13:01 +0530 | [diff] [blame] | 596 | return pm_ipi_send_sync(primary_proc, payload, NULL, 0); |
Nava kishore Manne | 68d460c | 2016-08-20 23:18:09 +0530 | [diff] [blame] | 597 | } |
| 598 | |
| 599 | /** |
| 600 | * pm_fpga_get_status() - Read value from fpga status register |
| 601 | * @value Value to read |
| 602 | * |
| 603 | * This function provides access to the xilfpga library to get |
| 604 | * the fpga status |
| 605 | * @return Returns status, either success or error+reason |
| 606 | */ |
| 607 | enum pm_ret_status pm_fpga_get_status(unsigned int *value) |
| 608 | { |
| 609 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 610 | |
| 611 | /* Send request to the PMU */ |
| 612 | PM_PACK_PAYLOAD1(payload, PM_FPGA_GET_STATUS); |
Soren Brinkmann | d6c9e03 | 2016-09-22 11:35:47 -0700 | [diff] [blame] | 613 | return pm_ipi_send_sync(primary_proc, payload, value, 1); |
Nava kishore Manne | 68d460c | 2016-08-20 23:18:09 +0530 | [diff] [blame] | 614 | } |
Soren Brinkmann | cb36681 | 2016-09-22 12:21:11 -0700 | [diff] [blame] | 615 | |
| 616 | /** |
| 617 | * pm_get_chipid() - Read silicon ID registers |
| 618 | * @value Buffer for return values. Must be large enough |
| 619 | * to hold 8 bytes. |
| 620 | * |
| 621 | * @return Returns silicon ID registers |
| 622 | */ |
| 623 | enum pm_ret_status pm_get_chipid(uint32_t *value) |
| 624 | { |
| 625 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 626 | |
| 627 | /* Send request to the PMU */ |
| 628 | PM_PACK_PAYLOAD1(payload, PM_GET_CHIPID); |
| 629 | return pm_ipi_send_sync(primary_proc, payload, value, 2); |
| 630 | } |
Soren Brinkmann | 84f0af4 | 2016-09-30 14:24:25 -0700 | [diff] [blame] | 631 | |
| 632 | /** |
Siva Durga Prasad Paladugu | de93d98 | 2018-04-30 15:49:27 +0530 | [diff] [blame] | 633 | * pm_secure_rsaaes() - Load the secure images. |
| 634 | * |
| 635 | * This function provides access to the xilsecure library to load |
| 636 | * the authenticated, encrypted, and authenicated/encrypted images. |
| 637 | * |
| 638 | * address_low: lower 32-bit Linear memory space address |
| 639 | * |
| 640 | * address_high: higher 32-bit Linear memory space address |
| 641 | * |
| 642 | * size: Number of 32bit words |
| 643 | * |
| 644 | * @return Returns status, either success or error+reason |
| 645 | */ |
| 646 | enum pm_ret_status pm_secure_rsaaes(uint32_t address_low, |
| 647 | uint32_t address_high, |
| 648 | uint32_t size, |
| 649 | uint32_t flags) |
| 650 | { |
| 651 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 652 | |
| 653 | /* Send request to the PMU */ |
| 654 | PM_PACK_PAYLOAD5(payload, PM_SECURE_RSA_AES, address_high, address_low, |
| 655 | size, flags); |
| 656 | return pm_ipi_send_sync(primary_proc, payload, NULL, 0); |
| 657 | } |
| 658 | |
| 659 | /** |
Siva Durga Prasad Paladugu | 8bd905b | 2018-09-04 18:05:50 +0530 | [diff] [blame] | 660 | * pm_aes_engine() - Aes data blob encryption/decryption |
| 661 | * This function provides access to the xilsecure library to |
| 662 | * encrypt/decrypt data blobs. |
| 663 | * |
| 664 | * address_low: lower 32-bit address of the AesParams structure |
| 665 | * |
| 666 | * address_high: higher 32-bit address of the AesParams structure |
| 667 | * |
| 668 | * value: Returned output value |
| 669 | * |
| 670 | * @return Returns status, either success or error+reason |
| 671 | */ |
| 672 | enum pm_ret_status pm_aes_engine(uint32_t address_high, |
| 673 | uint32_t address_low, |
| 674 | uint32_t *value) |
| 675 | { |
| 676 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 677 | |
| 678 | /* Send request to the PMU */ |
| 679 | PM_PACK_PAYLOAD3(payload, PM_SECURE_AES, address_high, address_low); |
| 680 | return pm_ipi_send_sync(primary_proc, payload, value, 1); |
| 681 | } |
| 682 | |
| 683 | /** |
Rajan Vaja | 02d1842 | 2019-03-04 11:09:39 +0530 | [diff] [blame] | 684 | * pm_get_callbackdata() - Read from IPI response buffer |
| 685 | * @data - array of PAYLOAD_ARG_CNT elements |
| 686 | * |
| 687 | * Read value from ipi buffer response buffer. |
| 688 | */ |
| 689 | void pm_get_callbackdata(uint32_t *data, size_t count) |
| 690 | { |
| 691 | /* Return if interrupt is not from PMU */ |
| 692 | if (!pm_ipi_irq_status(primary_proc)) |
| 693 | return; |
| 694 | |
| 695 | pm_ipi_buff_read_callb(data, count); |
| 696 | pm_ipi_irq_clear(primary_proc); |
| 697 | } |
| 698 | |
| 699 | /** |
Rajan Vaja | 5529a01 | 2018-01-17 02:39:23 -0800 | [diff] [blame] | 700 | * pm_ioctl() - PM IOCTL API for device control and configs |
| 701 | * @node_id Node ID of the device |
| 702 | * @ioctl_id ID of the requested IOCTL |
| 703 | * @arg1 Argument 1 to requested IOCTL call |
| 704 | * @arg2 Argument 2 to requested IOCTL call |
| 705 | * @out Returned output value |
| 706 | * |
| 707 | * This function calls IOCTL to firmware for device control and configuration. |
| 708 | * |
| 709 | * @return Returns status, either success or error+reason |
| 710 | */ |
| 711 | enum pm_ret_status pm_ioctl(enum pm_node_id nid, |
| 712 | unsigned int ioctl_id, |
| 713 | unsigned int arg1, |
| 714 | unsigned int arg2, |
| 715 | unsigned int *value) |
| 716 | { |
| 717 | return pm_api_ioctl(nid, ioctl_id, arg1, arg2, value); |
| 718 | } |
Rajan Vaja | 3511613 | 2018-01-17 02:39:25 -0800 | [diff] [blame] | 719 | |
| 720 | /** |
Ronak Jain | 325bad1 | 2021-12-21 01:39:59 -0800 | [diff] [blame] | 721 | * fw_api_version() - Returns API version implemented in firmware |
| 722 | * @api_id API ID to check |
| 723 | * @version Returned supported API version |
| 724 | * @len Number of words to be returned |
| 725 | * |
| 726 | * @return Returns status, either success or error+reason |
| 727 | */ |
| 728 | static enum pm_ret_status fw_api_version(uint32_t id, uint32_t *version, |
| 729 | uint32_t len) |
| 730 | { |
| 731 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 732 | |
| 733 | PM_PACK_PAYLOAD2(payload, PM_FEATURE_CHECK, id); |
| 734 | return pm_ipi_send_sync(primary_proc, payload, version, len); |
| 735 | } |
| 736 | |
| 737 | /** |
| 738 | * check_api_dependency() - API to check dependent EEMI API version |
| 739 | * @id EEMI API ID to check |
| 740 | * |
| 741 | * @return Returns status, either success or error+reason |
| 742 | */ |
| 743 | enum pm_ret_status check_api_dependency(uint8_t id) |
| 744 | { |
| 745 | uint8_t i; |
| 746 | uint32_t version; |
| 747 | int ret; |
| 748 | |
| 749 | for (i = 0U; i < ARRAY_SIZE(api_dep_table); i++) { |
| 750 | if (api_dep_table[i].id == id) { |
| 751 | if (api_dep_table[i].api_id == 0U) { |
| 752 | break; |
| 753 | } |
| 754 | |
| 755 | ret = fw_api_version(api_dep_table[i].api_id, |
| 756 | &version, 1); |
| 757 | if (ret != PM_RET_SUCCESS) { |
| 758 | return ret; |
| 759 | } |
| 760 | |
| 761 | /* Check if fw version matches ATF expected version */ |
| 762 | if (version != atf_expected_ver_id[api_dep_table[i].api_id]) { |
| 763 | return PM_RET_ERROR_NOTSUPPORTED; |
| 764 | } |
| 765 | } |
| 766 | } |
| 767 | |
| 768 | return PM_RET_SUCCESS; |
| 769 | } |
| 770 | |
| 771 | /** |
| 772 | * feature_check_atf() - These are API's completely implemented in ATF |
| 773 | * @api_id API ID to check |
| 774 | * @version Returned supported API version |
| 775 | * |
| 776 | * @return Returns status, either success or error+reason |
| 777 | */ |
| 778 | static enum pm_ret_status feature_check_atf(uint32_t api_id, uint32_t *version, |
| 779 | uint32_t *bit_mask) |
| 780 | { |
| 781 | switch (api_id) { |
| 782 | case PM_QUERY_DATA: |
| 783 | *version = ATF_API_BASE_VERSION; |
| 784 | bit_mask[0] = (uint32_t)(PM_QUERY_FEATURE_BITMASK); |
| 785 | bit_mask[1] = (uint32_t)(PM_QUERY_FEATURE_BITMASK >> 32); |
| 786 | return PM_RET_SUCCESS; |
| 787 | case PM_GET_CALLBACK_DATA: |
| 788 | case PM_GET_TRUSTZONE_VERSION: |
| 789 | case PM_SET_SUSPEND_MODE: |
| 790 | *version = ATF_API_BASE_VERSION; |
| 791 | return PM_RET_SUCCESS; |
| 792 | default: |
| 793 | return PM_RET_ERROR_NO_FEATURE; |
| 794 | } |
| 795 | } |
| 796 | |
| 797 | /** |
| 798 | * get_atf_version_for_partial_apis() - Return ATF version for partially |
| 799 | * implemented APIs |
| 800 | * @api_id API ID to check |
| 801 | * @version Returned supported API version |
| 802 | * |
| 803 | * @return Returns status, either success or error+reason |
| 804 | */ |
| 805 | static enum pm_ret_status get_atf_version_for_partial_apis(uint32_t api_id, |
| 806 | uint32_t *version) |
| 807 | { |
| 808 | switch (api_id) { |
| 809 | case PM_SELF_SUSPEND: |
| 810 | case PM_REQ_WAKEUP: |
| 811 | case PM_ABORT_SUSPEND: |
| 812 | case PM_SET_WAKEUP_SOURCE: |
| 813 | case PM_SYSTEM_SHUTDOWN: |
| 814 | case PM_GET_API_VERSION: |
| 815 | case PM_CLOCK_ENABLE: |
| 816 | case PM_CLOCK_DISABLE: |
| 817 | case PM_CLOCK_GETSTATE: |
| 818 | case PM_CLOCK_SETDIVIDER: |
| 819 | case PM_CLOCK_GETDIVIDER: |
| 820 | case PM_CLOCK_SETPARENT: |
| 821 | case PM_CLOCK_GETPARENT: |
| 822 | case PM_PLL_SET_PARAMETER: |
| 823 | case PM_PLL_GET_PARAMETER: |
| 824 | case PM_PLL_SET_MODE: |
| 825 | case PM_PLL_GET_MODE: |
| 826 | case PM_REGISTER_ACCESS: |
| 827 | *version = ATF_API_BASE_VERSION; |
| 828 | return PM_RET_SUCCESS; |
| 829 | case PM_FEATURE_CHECK: |
| 830 | *version = FW_API_VERSION_2; |
| 831 | return PM_RET_SUCCESS; |
| 832 | default: |
| 833 | return PM_RET_ERROR_ARGS; |
| 834 | } |
| 835 | } |
| 836 | |
| 837 | /** |
| 838 | * feature_check_partial() - These are API's partially implemented in |
| 839 | * ATF and firmware both |
| 840 | * @api_id API ID to check |
| 841 | * @version Returned supported API version |
| 842 | * |
| 843 | * @return Returns status, either success or error+reason |
| 844 | */ |
| 845 | static enum pm_ret_status feature_check_partial(uint32_t api_id, |
| 846 | uint32_t *version) |
| 847 | { |
| 848 | uint32_t status; |
| 849 | |
| 850 | switch (api_id) { |
| 851 | case PM_SELF_SUSPEND: |
| 852 | case PM_REQ_WAKEUP: |
| 853 | case PM_ABORT_SUSPEND: |
| 854 | case PM_SET_WAKEUP_SOURCE: |
| 855 | case PM_SYSTEM_SHUTDOWN: |
| 856 | case PM_GET_API_VERSION: |
| 857 | case PM_CLOCK_ENABLE: |
| 858 | case PM_CLOCK_DISABLE: |
| 859 | case PM_CLOCK_GETSTATE: |
| 860 | case PM_CLOCK_SETDIVIDER: |
| 861 | case PM_CLOCK_GETDIVIDER: |
| 862 | case PM_CLOCK_SETPARENT: |
| 863 | case PM_CLOCK_GETPARENT: |
| 864 | case PM_PLL_SET_PARAMETER: |
| 865 | case PM_PLL_GET_PARAMETER: |
| 866 | case PM_PLL_SET_MODE: |
| 867 | case PM_PLL_GET_MODE: |
| 868 | case PM_REGISTER_ACCESS: |
| 869 | case PM_FEATURE_CHECK: |
| 870 | status = check_api_dependency(api_id); |
| 871 | if (status != PM_RET_SUCCESS) { |
| 872 | return status; |
| 873 | } |
| 874 | return get_atf_version_for_partial_apis(api_id, version); |
| 875 | default: |
| 876 | return PM_RET_ERROR_NO_FEATURE; |
| 877 | } |
| 878 | } |
| 879 | |
| 880 | /** |
| 881 | * pm_feature_check() - Returns the supported API version if supported |
| 882 | * @api_id API ID to check |
| 883 | * @version Returned supported API version |
| 884 | * @bit_mask Returned supported IOCTL id version |
| 885 | * @len Number of bytes to be returned in bit_mask variable |
| 886 | * |
| 887 | * @return Returns status, either success or error+reason |
| 888 | */ |
| 889 | enum pm_ret_status pm_feature_check(uint32_t api_id, uint32_t *version, |
| 890 | uint32_t *bit_mask, uint8_t len) |
| 891 | { |
| 892 | uint32_t ret_payload[PAYLOAD_ARG_CNT] = {0U}; |
| 893 | uint32_t status; |
| 894 | |
| 895 | /* Get API version implemented in ATF */ |
| 896 | status = feature_check_atf(api_id, version, bit_mask); |
| 897 | if (status != PM_RET_ERROR_NO_FEATURE) { |
| 898 | return status; |
| 899 | } |
| 900 | |
| 901 | /* Get API version implemented by firmware and ATF both */ |
| 902 | status = feature_check_partial(api_id, version); |
| 903 | if (status != PM_RET_ERROR_NO_FEATURE) { |
| 904 | return status; |
| 905 | } |
| 906 | |
| 907 | /* Get API version implemented by firmware */ |
| 908 | status = fw_api_version(api_id, ret_payload, 3); |
| 909 | /* IOCTL call may return failure whose ID is not implemented in |
| 910 | * firmware but implemented in ATF |
| 911 | */ |
| 912 | if ((api_id != PM_IOCTL) && (status != PM_RET_SUCCESS)) { |
| 913 | return status; |
| 914 | } |
| 915 | |
| 916 | *version = ret_payload[0]; |
| 917 | |
| 918 | /* Update IOCTL bit mask which are implemented in ATF */ |
| 919 | if (api_id == PM_IOCTL) { |
| 920 | if (len < 2) { |
| 921 | return PM_RET_ERROR_ARGS; |
| 922 | } |
| 923 | bit_mask[0] = ret_payload[1]; |
| 924 | bit_mask[1] = ret_payload[2]; |
| 925 | /* Get IOCTL's implemented by ATF */ |
| 926 | status = atf_ioctl_bitmask(bit_mask); |
| 927 | } else { |
| 928 | /* Requires for MISRA */ |
| 929 | } |
| 930 | |
| 931 | return status; |
| 932 | } |
| 933 | |
| 934 | /** |
Rajan Vaja | b34deca | 2019-03-20 01:13:21 +0530 | [diff] [blame] | 935 | * pm_clock_get_max_divisor - PM call to get max divisor |
| 936 | * @clock_id Clock ID |
| 937 | * @div_type Divisor ID (TYPE_DIV1 or TYPE_DIV2) |
| 938 | * @max_div Maximum supported divisor |
| 939 | * |
| 940 | * This function is used by master to get maximum supported value. |
| 941 | * |
| 942 | * Return: Returns status, either success or error+reason. |
| 943 | */ |
| 944 | static enum pm_ret_status pm_clock_get_max_divisor(unsigned int clock_id, |
| 945 | uint8_t div_type, |
| 946 | uint32_t *max_div) |
| 947 | { |
| 948 | return pm_api_clock_get_max_divisor(clock_id, div_type, max_div); |
| 949 | } |
| 950 | |
| 951 | /** |
Rajan Vaja | da95940 | 2018-07-20 03:16:27 -0700 | [diff] [blame] | 952 | * pm_clock_get_num_clocks - PM call to request number of clocks |
| 953 | * @nclockss: Number of clocks |
| 954 | * |
| 955 | * This function is used by master to get number of clocks. |
| 956 | * |
| 957 | * Return: Returns status, either success or error+reason. |
| 958 | */ |
| 959 | static enum pm_ret_status pm_clock_get_num_clocks(uint32_t *nclocks) |
| 960 | { |
| 961 | return pm_api_clock_get_num_clocks(nclocks); |
| 962 | } |
| 963 | |
| 964 | /** |
Rajan Vaja | 3511613 | 2018-01-17 02:39:25 -0800 | [diff] [blame] | 965 | * pm_clock_get_name() - PM call to request a clock's name |
| 966 | * @clock_id Clock ID |
| 967 | * @name Name of clock (max 16 bytes) |
| 968 | * |
| 969 | * This function is used by master to get nmae of clock specified |
| 970 | * by given clock ID. |
Rajan Vaja | 3511613 | 2018-01-17 02:39:25 -0800 | [diff] [blame] | 971 | */ |
Rajan Vaja | cd82568 | 2020-11-23 21:33:39 -0800 | [diff] [blame] | 972 | static void pm_clock_get_name(unsigned int clock_id, char *name) |
Rajan Vaja | 3511613 | 2018-01-17 02:39:25 -0800 | [diff] [blame] | 973 | { |
Rajan Vaja | cd82568 | 2020-11-23 21:33:39 -0800 | [diff] [blame] | 974 | pm_api_clock_get_name(clock_id, name); |
Rajan Vaja | 3511613 | 2018-01-17 02:39:25 -0800 | [diff] [blame] | 975 | } |
| 976 | |
| 977 | /** |
| 978 | * pm_clock_get_topology() - PM call to request a clock's topology |
| 979 | * @clock_id Clock ID |
| 980 | * @index Topology index for next toplogy node |
| 981 | * @topology Buffer to store nodes in topology and flags |
| 982 | * |
| 983 | * This function is used by master to get topology information for the |
| 984 | * clock specified by given clock ID. Each response would return 3 |
| 985 | * topology nodes. To get next nodes, caller needs to call this API with |
| 986 | * index of next node. Index starts from 0. |
| 987 | * |
| 988 | * @return Returns status, either success or error+reason |
| 989 | */ |
| 990 | static enum pm_ret_status pm_clock_get_topology(unsigned int clock_id, |
| 991 | unsigned int index, |
| 992 | uint32_t *topology) |
| 993 | { |
| 994 | return pm_api_clock_get_topology(clock_id, index, topology); |
| 995 | } |
| 996 | |
| 997 | /** |
| 998 | * pm_clock_get_fixedfactor_params() - PM call to request a clock's fixed factor |
| 999 | * parameters for fixed clock |
| 1000 | * @clock_id Clock ID |
| 1001 | * @mul Multiplication value |
| 1002 | * @div Divisor value |
| 1003 | * |
| 1004 | * This function is used by master to get fixed factor parameers for the |
| 1005 | * fixed clock. This API is application only for the fixed clock. |
| 1006 | * |
| 1007 | * @return Returns status, either success or error+reason |
| 1008 | */ |
| 1009 | static enum pm_ret_status pm_clock_get_fixedfactor_params(unsigned int clock_id, |
| 1010 | uint32_t *mul, |
| 1011 | uint32_t *div) |
| 1012 | { |
| 1013 | return pm_api_clock_get_fixedfactor_params(clock_id, mul, div); |
| 1014 | } |
| 1015 | |
| 1016 | /** |
| 1017 | * pm_clock_get_parents() - PM call to request a clock's first 3 parents |
| 1018 | * @clock_id Clock ID |
| 1019 | * @index Index of next parent |
| 1020 | * @parents Parents of the given clock |
| 1021 | * |
| 1022 | * This function is used by master to get clock's parents information. |
| 1023 | * This API will return 3 parents with a single response. To get other |
| 1024 | * parents, master should call same API in loop with new parent index |
| 1025 | * till error is returned. |
| 1026 | * |
| 1027 | * E.g First call should have index 0 which will return parents 0, 1 and |
| 1028 | * 2. Next call, index should be 3 which will return parent 3,4 and 5 and |
| 1029 | * so on. |
| 1030 | * |
| 1031 | * @return Returns status, either success or error+reason |
| 1032 | */ |
| 1033 | static enum pm_ret_status pm_clock_get_parents(unsigned int clock_id, |
| 1034 | unsigned int index, |
| 1035 | uint32_t *parents) |
| 1036 | { |
| 1037 | return pm_api_clock_get_parents(clock_id, index, parents); |
| 1038 | } |
| 1039 | |
| 1040 | /** |
| 1041 | * pm_clock_get_attributes() - PM call to request a clock's attributes |
| 1042 | * @clock_id Clock ID |
| 1043 | * @attr Clock attributes |
| 1044 | * |
| 1045 | * This function is used by master to get clock's attributes |
| 1046 | * (e.g. valid, clock type, etc). |
| 1047 | * |
| 1048 | * @return Returns status, either success or error+reason |
| 1049 | */ |
| 1050 | static enum pm_ret_status pm_clock_get_attributes(unsigned int clock_id, |
| 1051 | uint32_t *attr) |
| 1052 | { |
| 1053 | return pm_api_clock_get_attributes(clock_id, attr); |
| 1054 | } |
| 1055 | |
| 1056 | /** |
Jolly Shah | a520980 | 2019-01-04 11:45:59 -0800 | [diff] [blame] | 1057 | * pm_clock_gate() - Configure clock gate |
| 1058 | * @clock_id Id of the clock to be configured |
| 1059 | * @enable Flag 0=disable (gate the clock), !0=enable (activate the clock) |
| 1060 | * |
| 1061 | * @return Error if an argument is not valid or status as returned by the |
| 1062 | * PM controller (PMU) |
| 1063 | */ |
| 1064 | static enum pm_ret_status pm_clock_gate(unsigned int clock_id, |
| 1065 | unsigned char enable) |
| 1066 | { |
| 1067 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 1068 | enum pm_ret_status status; |
| 1069 | enum pm_api_id api_id; |
| 1070 | |
| 1071 | /* Check if clock ID is valid and return an error if it is not */ |
| 1072 | status = pm_clock_id_is_valid(clock_id); |
| 1073 | if (status != PM_RET_SUCCESS) |
| 1074 | return status; |
| 1075 | |
| 1076 | if (enable) |
| 1077 | api_id = PM_CLOCK_ENABLE; |
| 1078 | else |
| 1079 | api_id = PM_CLOCK_DISABLE; |
| 1080 | |
| 1081 | /* Send request to the PMU */ |
| 1082 | PM_PACK_PAYLOAD2(payload, api_id, clock_id); |
Mirela Simonovic | 64514a7 | 2018-08-24 17:09:07 +0200 | [diff] [blame] | 1083 | status = pm_ipi_send_sync(primary_proc, payload, NULL, 0); |
| 1084 | |
| 1085 | /* If action fails due to the lack of permissions filter the error */ |
| 1086 | if (status == PM_RET_ERROR_ACCESS) |
| 1087 | status = PM_RET_SUCCESS; |
| 1088 | |
| 1089 | return status; |
Jolly Shah | a520980 | 2019-01-04 11:45:59 -0800 | [diff] [blame] | 1090 | } |
| 1091 | |
| 1092 | /** |
Rajan Vaja | 3511613 | 2018-01-17 02:39:25 -0800 | [diff] [blame] | 1093 | * pm_clock_enable() - Enable the clock for given id |
| 1094 | * @clock_id: Id of the clock to be enabled |
| 1095 | * |
| 1096 | * This function is used by master to enable the clock |
| 1097 | * including peripherals and PLL clocks. |
| 1098 | * |
Jolly Shah | a520980 | 2019-01-04 11:45:59 -0800 | [diff] [blame] | 1099 | * @return: Error if an argument is not valid or status as returned by the |
| 1100 | * pm_clock_gate |
Rajan Vaja | 3511613 | 2018-01-17 02:39:25 -0800 | [diff] [blame] | 1101 | */ |
Rajan Vaja | 3511613 | 2018-01-17 02:39:25 -0800 | [diff] [blame] | 1102 | enum pm_ret_status pm_clock_enable(unsigned int clock_id) |
| 1103 | { |
Jolly Shah | a520980 | 2019-01-04 11:45:59 -0800 | [diff] [blame] | 1104 | struct pm_pll *pll; |
| 1105 | |
| 1106 | /* First try to handle it as a PLL */ |
| 1107 | pll = pm_clock_get_pll(clock_id); |
| 1108 | if (pll) |
| 1109 | return pm_clock_pll_enable(pll); |
| 1110 | |
| 1111 | /* It's an on-chip clock, PMU should configure clock's gate */ |
| 1112 | return pm_clock_gate(clock_id, 1); |
Rajan Vaja | 3511613 | 2018-01-17 02:39:25 -0800 | [diff] [blame] | 1113 | } |
| 1114 | |
| 1115 | /** |
| 1116 | * pm_clock_disable - Disable the clock for given id |
| 1117 | * @clock_id: Id of the clock to be disable |
| 1118 | * |
| 1119 | * This function is used by master to disable the clock |
| 1120 | * including peripherals and PLL clocks. |
| 1121 | * |
Jolly Shah | a9057a0 | 2019-01-02 12:54:40 -0800 | [diff] [blame] | 1122 | * @return: Error if an argument is not valid or status as returned by the |
| 1123 | * pm_clock_gate |
Rajan Vaja | 3511613 | 2018-01-17 02:39:25 -0800 | [diff] [blame] | 1124 | */ |
Rajan Vaja | 3511613 | 2018-01-17 02:39:25 -0800 | [diff] [blame] | 1125 | enum pm_ret_status pm_clock_disable(unsigned int clock_id) |
| 1126 | { |
Jolly Shah | a9057a0 | 2019-01-02 12:54:40 -0800 | [diff] [blame] | 1127 | struct pm_pll *pll; |
| 1128 | |
| 1129 | /* First try to handle it as a PLL */ |
| 1130 | pll = pm_clock_get_pll(clock_id); |
| 1131 | if (pll) |
| 1132 | return pm_clock_pll_disable(pll); |
| 1133 | |
| 1134 | /* It's an on-chip clock, PMU should configure clock's gate */ |
| 1135 | return pm_clock_gate(clock_id, 0); |
Rajan Vaja | 3511613 | 2018-01-17 02:39:25 -0800 | [diff] [blame] | 1136 | } |
| 1137 | |
| 1138 | /** |
| 1139 | * pm_clock_getstate - Get the clock state for given id |
| 1140 | * @clock_id: Id of the clock to be queried |
| 1141 | * @state: 1/0 (Enabled/Disabled) |
| 1142 | * |
| 1143 | * This function is used by master to get the state of clock |
| 1144 | * including peripherals and PLL clocks. |
| 1145 | * |
| 1146 | * Return: Returns status, either success or error+reason. |
| 1147 | */ |
| 1148 | enum pm_ret_status pm_clock_getstate(unsigned int clock_id, |
| 1149 | unsigned int *state) |
| 1150 | { |
Jolly Shah | 99e8ac9 | 2019-01-02 12:55:41 -0800 | [diff] [blame] | 1151 | struct pm_pll *pll; |
| 1152 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 1153 | enum pm_ret_status status; |
| 1154 | |
| 1155 | /* First try to handle it as a PLL */ |
| 1156 | pll = pm_clock_get_pll(clock_id); |
| 1157 | if (pll) |
| 1158 | return pm_clock_pll_get_state(pll, state); |
| 1159 | |
| 1160 | /* Check if clock ID is a valid on-chip clock */ |
| 1161 | status = pm_clock_id_is_valid(clock_id); |
| 1162 | if (status != PM_RET_SUCCESS) |
| 1163 | return status; |
| 1164 | |
| 1165 | /* Send request to the PMU */ |
| 1166 | PM_PACK_PAYLOAD2(payload, PM_CLOCK_GETSTATE, clock_id); |
| 1167 | return pm_ipi_send_sync(primary_proc, payload, state, 1); |
Rajan Vaja | 3511613 | 2018-01-17 02:39:25 -0800 | [diff] [blame] | 1168 | } |
| 1169 | |
| 1170 | /** |
| 1171 | * pm_clock_setdivider - Set the clock divider for given id |
| 1172 | * @clock_id: Id of the clock |
| 1173 | * @divider: divider value |
| 1174 | * |
| 1175 | * This function is used by master to set divider for any clock |
| 1176 | * to achieve desired rate. |
| 1177 | * |
| 1178 | * Return: Returns status, either success or error+reason. |
| 1179 | */ |
| 1180 | enum pm_ret_status pm_clock_setdivider(unsigned int clock_id, |
| 1181 | unsigned int divider) |
| 1182 | { |
Jolly Shah | 8b4c4c7 | 2019-01-04 11:49:46 -0800 | [diff] [blame] | 1183 | enum pm_ret_status status; |
| 1184 | enum pm_node_id nid; |
| 1185 | enum pm_clock_div_id div_id; |
| 1186 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 1187 | const uint32_t div0 = 0xFFFF0000; |
| 1188 | const uint32_t div1 = 0x0000FFFF; |
| 1189 | uint32_t val; |
| 1190 | |
| 1191 | /* Get PLL node ID using PLL clock ID */ |
| 1192 | status = pm_clock_get_pll_node_id(clock_id, &nid); |
| 1193 | if (status == PM_RET_SUCCESS) |
| 1194 | return pm_pll_set_parameter(nid, PM_PLL_PARAM_FBDIV, divider); |
| 1195 | |
| 1196 | /* Check if clock ID is a valid on-chip clock */ |
| 1197 | status = pm_clock_id_is_valid(clock_id); |
| 1198 | if (status != PM_RET_SUCCESS) |
| 1199 | return status; |
| 1200 | |
| 1201 | if (div0 == (divider & div0)) { |
| 1202 | div_id = PM_CLOCK_DIV0_ID; |
| 1203 | val = divider & ~div0; |
| 1204 | } else if (div1 == (divider & div1)) { |
| 1205 | div_id = PM_CLOCK_DIV1_ID; |
| 1206 | val = (divider & ~div1) >> 16; |
| 1207 | } else { |
| 1208 | return PM_RET_ERROR_ARGS; |
| 1209 | } |
| 1210 | |
| 1211 | /* Send request to the PMU */ |
| 1212 | PM_PACK_PAYLOAD4(payload, PM_CLOCK_SETDIVIDER, clock_id, div_id, val); |
| 1213 | return pm_ipi_send_sync(primary_proc, payload, NULL, 0); |
Rajan Vaja | 3511613 | 2018-01-17 02:39:25 -0800 | [diff] [blame] | 1214 | } |
| 1215 | |
| 1216 | /** |
| 1217 | * pm_clock_getdivider - Get the clock divider for given id |
| 1218 | * @clock_id: Id of the clock |
| 1219 | * @divider: divider value |
| 1220 | * |
| 1221 | * This function is used by master to get divider values |
| 1222 | * for any clock. |
| 1223 | * |
| 1224 | * Return: Returns status, either success or error+reason. |
| 1225 | */ |
| 1226 | enum pm_ret_status pm_clock_getdivider(unsigned int clock_id, |
| 1227 | unsigned int *divider) |
| 1228 | { |
Jolly Shah | 4dd1176 | 2019-01-04 11:53:37 -0800 | [diff] [blame] | 1229 | enum pm_ret_status status; |
| 1230 | enum pm_node_id nid; |
| 1231 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 1232 | uint32_t val; |
| 1233 | |
| 1234 | /* Get PLL node ID using PLL clock ID */ |
| 1235 | status = pm_clock_get_pll_node_id(clock_id, &nid); |
| 1236 | if (status == PM_RET_SUCCESS) |
| 1237 | return pm_pll_get_parameter(nid, PM_PLL_PARAM_FBDIV, divider); |
| 1238 | |
| 1239 | /* Check if clock ID is a valid on-chip clock */ |
| 1240 | status = pm_clock_id_is_valid(clock_id); |
| 1241 | if (status != PM_RET_SUCCESS) |
| 1242 | return status; |
| 1243 | |
| 1244 | if (pm_clock_has_div(clock_id, PM_CLOCK_DIV0_ID)) { |
| 1245 | /* Send request to the PMU to get div0 */ |
| 1246 | PM_PACK_PAYLOAD3(payload, PM_CLOCK_GETDIVIDER, clock_id, |
| 1247 | PM_CLOCK_DIV0_ID); |
| 1248 | status = pm_ipi_send_sync(primary_proc, payload, &val, 1); |
| 1249 | if (status != PM_RET_SUCCESS) |
| 1250 | return status; |
| 1251 | *divider = val; |
| 1252 | } |
| 1253 | |
| 1254 | if (pm_clock_has_div(clock_id, PM_CLOCK_DIV1_ID)) { |
| 1255 | /* Send request to the PMU to get div1 */ |
| 1256 | PM_PACK_PAYLOAD3(payload, PM_CLOCK_GETDIVIDER, clock_id, |
| 1257 | PM_CLOCK_DIV1_ID); |
| 1258 | status = pm_ipi_send_sync(primary_proc, payload, &val, 1); |
| 1259 | if (status != PM_RET_SUCCESS) |
| 1260 | return status; |
| 1261 | *divider |= val << 16; |
| 1262 | } |
| 1263 | |
| 1264 | return status; |
Rajan Vaja | 3511613 | 2018-01-17 02:39:25 -0800 | [diff] [blame] | 1265 | } |
| 1266 | |
| 1267 | /** |
| 1268 | * pm_clock_setrate - Set the clock rate for given id |
| 1269 | * @clock_id: Id of the clock |
| 1270 | * @rate: rate value in hz |
| 1271 | * |
| 1272 | * This function is used by master to set rate for any clock. |
| 1273 | * |
| 1274 | * Return: Returns status, either success or error+reason. |
| 1275 | */ |
| 1276 | enum pm_ret_status pm_clock_setrate(unsigned int clock_id, |
| 1277 | uint64_t rate) |
| 1278 | { |
Jolly Shah | c139181 | 2019-01-02 13:39:30 -0800 | [diff] [blame] | 1279 | return PM_RET_ERROR_NOTSUPPORTED; |
Rajan Vaja | 3511613 | 2018-01-17 02:39:25 -0800 | [diff] [blame] | 1280 | } |
| 1281 | |
| 1282 | /** |
| 1283 | * pm_clock_getrate - Get the clock rate for given id |
| 1284 | * @clock_id: Id of the clock |
| 1285 | * @rate: rate value in hz |
| 1286 | * |
| 1287 | * This function is used by master to get rate |
| 1288 | * for any clock. |
| 1289 | * |
| 1290 | * Return: Returns status, either success or error+reason. |
| 1291 | */ |
| 1292 | enum pm_ret_status pm_clock_getrate(unsigned int clock_id, |
| 1293 | uint64_t *rate) |
| 1294 | { |
Jolly Shah | c139181 | 2019-01-02 13:39:30 -0800 | [diff] [blame] | 1295 | return PM_RET_ERROR_NOTSUPPORTED; |
Rajan Vaja | 3511613 | 2018-01-17 02:39:25 -0800 | [diff] [blame] | 1296 | } |
| 1297 | |
| 1298 | /** |
| 1299 | * pm_clock_setparent - Set the clock parent for given id |
| 1300 | * @clock_id: Id of the clock |
Jolly Shah | 407fc0a | 2019-01-04 11:57:40 -0800 | [diff] [blame] | 1301 | * @parent_index: Index of the parent clock into clock's parents array |
Rajan Vaja | 3511613 | 2018-01-17 02:39:25 -0800 | [diff] [blame] | 1302 | * |
| 1303 | * This function is used by master to set parent for any clock. |
| 1304 | * |
| 1305 | * Return: Returns status, either success or error+reason. |
| 1306 | */ |
| 1307 | enum pm_ret_status pm_clock_setparent(unsigned int clock_id, |
Jolly Shah | 407fc0a | 2019-01-04 11:57:40 -0800 | [diff] [blame] | 1308 | unsigned int parent_index) |
Rajan Vaja | 3511613 | 2018-01-17 02:39:25 -0800 | [diff] [blame] | 1309 | { |
Jolly Shah | 407fc0a | 2019-01-04 11:57:40 -0800 | [diff] [blame] | 1310 | struct pm_pll *pll; |
| 1311 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 1312 | enum pm_ret_status status; |
| 1313 | |
| 1314 | /* First try to handle it as a PLL */ |
| 1315 | pll = pm_clock_get_pll_by_related_clk(clock_id); |
| 1316 | if (pll) |
| 1317 | return pm_clock_pll_set_parent(pll, clock_id, parent_index); |
| 1318 | |
| 1319 | /* Check if clock ID is a valid on-chip clock */ |
| 1320 | status = pm_clock_id_is_valid(clock_id); |
| 1321 | if (status != PM_RET_SUCCESS) |
| 1322 | return status; |
| 1323 | |
| 1324 | /* Send request to the PMU */ |
| 1325 | PM_PACK_PAYLOAD3(payload, PM_CLOCK_SETPARENT, clock_id, parent_index); |
| 1326 | return pm_ipi_send_sync(primary_proc, payload, NULL, 0); |
Rajan Vaja | 3511613 | 2018-01-17 02:39:25 -0800 | [diff] [blame] | 1327 | } |
| 1328 | |
| 1329 | /** |
| 1330 | * pm_clock_getparent - Get the clock parent for given id |
| 1331 | * @clock_id: Id of the clock |
Jolly Shah | 7c8e79c | 2019-01-02 13:44:25 -0800 | [diff] [blame] | 1332 | * @parent_index: parent index |
Rajan Vaja | 3511613 | 2018-01-17 02:39:25 -0800 | [diff] [blame] | 1333 | * |
| 1334 | * This function is used by master to get parent index |
| 1335 | * for any clock. |
| 1336 | * |
| 1337 | * Return: Returns status, either success or error+reason. |
| 1338 | */ |
| 1339 | enum pm_ret_status pm_clock_getparent(unsigned int clock_id, |
Jolly Shah | 7c8e79c | 2019-01-02 13:44:25 -0800 | [diff] [blame] | 1340 | unsigned int *parent_index) |
Rajan Vaja | 3511613 | 2018-01-17 02:39:25 -0800 | [diff] [blame] | 1341 | { |
Jolly Shah | 7c8e79c | 2019-01-02 13:44:25 -0800 | [diff] [blame] | 1342 | struct pm_pll *pll; |
| 1343 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 1344 | enum pm_ret_status status; |
| 1345 | |
| 1346 | /* First try to handle it as a PLL */ |
| 1347 | pll = pm_clock_get_pll_by_related_clk(clock_id); |
| 1348 | if (pll) |
| 1349 | return pm_clock_pll_get_parent(pll, clock_id, parent_index); |
| 1350 | |
| 1351 | /* Check if clock ID is a valid on-chip clock */ |
| 1352 | status = pm_clock_id_is_valid(clock_id); |
| 1353 | if (status != PM_RET_SUCCESS) |
| 1354 | return status; |
| 1355 | |
| 1356 | /* Send request to the PMU */ |
| 1357 | PM_PACK_PAYLOAD2(payload, PM_CLOCK_GETPARENT, clock_id); |
| 1358 | return pm_ipi_send_sync(primary_proc, payload, parent_index, 1); |
Rajan Vaja | 3511613 | 2018-01-17 02:39:25 -0800 | [diff] [blame] | 1359 | } |
| 1360 | |
| 1361 | /** |
Rajan Vaja | d5dd836 | 2018-01-30 04:16:31 -0800 | [diff] [blame] | 1362 | * pm_pinctrl_get_num_pins - PM call to request number of pins |
| 1363 | * @npins: Number of pins |
| 1364 | * |
| 1365 | * This function is used by master to get number of pins |
| 1366 | * |
| 1367 | * Return: Returns status, either success or error+reason. |
| 1368 | */ |
| 1369 | static enum pm_ret_status pm_pinctrl_get_num_pins(uint32_t *npins) |
| 1370 | { |
| 1371 | return pm_api_pinctrl_get_num_pins(npins); |
| 1372 | } |
| 1373 | |
| 1374 | /** |
| 1375 | * pm_pinctrl_get_num_functions - PM call to request number of functions |
| 1376 | * @nfuncs: Number of functions |
| 1377 | * |
| 1378 | * This function is used by master to get number of functions |
| 1379 | * |
| 1380 | * Return: Returns status, either success or error+reason. |
| 1381 | */ |
| 1382 | static enum pm_ret_status pm_pinctrl_get_num_functions(uint32_t *nfuncs) |
| 1383 | { |
| 1384 | return pm_api_pinctrl_get_num_functions(nfuncs); |
| 1385 | } |
| 1386 | |
| 1387 | /** |
| 1388 | * pm_pinctrl_get_num_function_groups - PM call to request number of |
| 1389 | * function groups |
| 1390 | * @fid: Id of function |
| 1391 | * @ngroups: Number of function groups |
| 1392 | * |
| 1393 | * This function is used by master to get number of function groups specified |
| 1394 | * by given function Id |
| 1395 | * |
| 1396 | * Return: Returns status, either success or error+reason. |
| 1397 | */ |
| 1398 | static enum pm_ret_status pm_pinctrl_get_num_function_groups(unsigned int fid, |
| 1399 | uint32_t *ngroups) |
| 1400 | { |
| 1401 | return pm_api_pinctrl_get_num_func_groups(fid, ngroups); |
| 1402 | } |
| 1403 | |
| 1404 | /** |
| 1405 | * pm_pinctrl_get_function_name - PM call to request function name |
| 1406 | * @fid: Id of function |
| 1407 | * @name: Name of function |
| 1408 | * |
| 1409 | * This function is used by master to get name of function specified |
| 1410 | * by given function Id |
Rajan Vaja | d5dd836 | 2018-01-30 04:16:31 -0800 | [diff] [blame] | 1411 | */ |
Rajan Vaja | cd82568 | 2020-11-23 21:33:39 -0800 | [diff] [blame] | 1412 | static void pm_pinctrl_get_function_name(unsigned int fid, char *name) |
Rajan Vaja | d5dd836 | 2018-01-30 04:16:31 -0800 | [diff] [blame] | 1413 | { |
Rajan Vaja | cd82568 | 2020-11-23 21:33:39 -0800 | [diff] [blame] | 1414 | pm_api_pinctrl_get_function_name(fid, name); |
Rajan Vaja | d5dd836 | 2018-01-30 04:16:31 -0800 | [diff] [blame] | 1415 | } |
| 1416 | |
| 1417 | /** |
| 1418 | * pm_pinctrl_get_function_groups - PM call to request function groups |
| 1419 | * @fid: Id of function |
| 1420 | * @index: Index of next function groups |
| 1421 | * @groups: Function groups |
| 1422 | * |
| 1423 | * This function is used by master to get function groups specified |
| 1424 | * by given function Id. This API will return 6 function groups with |
| 1425 | * a single response. To get other function groups, master should call |
| 1426 | * same API in loop with new function groups index till error is returned. |
| 1427 | * |
| 1428 | * E.g First call should have index 0 which will return function groups |
| 1429 | * 0, 1, 2, 3, 4 and 5. Next call, index should be 6 which will return |
| 1430 | * function groups 6, 7, 8, 9, 10 and 11 and so on. |
| 1431 | * |
| 1432 | * Return: Returns status, either success or error+reason. |
| 1433 | */ |
| 1434 | static enum pm_ret_status pm_pinctrl_get_function_groups(unsigned int fid, |
| 1435 | unsigned int index, |
| 1436 | uint16_t *groups) |
| 1437 | { |
| 1438 | return pm_api_pinctrl_get_function_groups(fid, index, groups); |
| 1439 | } |
| 1440 | |
| 1441 | /** |
| 1442 | * pm_pinctrl_get_pin_groups - PM call to request pin groups |
| 1443 | * @pin_id: Id of pin |
| 1444 | * @index: Index of next pin groups |
| 1445 | * @groups: pin groups |
| 1446 | * |
| 1447 | * This function is used by master to get pin groups specified |
| 1448 | * by given pin Id. This API will return 6 pin groups with |
| 1449 | * a single response. To get other pin groups, master should call |
| 1450 | * same API in loop with new pin groups index till error is returned. |
| 1451 | * |
| 1452 | * E.g First call should have index 0 which will return pin groups |
| 1453 | * 0, 1, 2, 3, 4 and 5. Next call, index should be 6 which will return |
| 1454 | * pin groups 6, 7, 8, 9, 10 and 11 and so on. |
| 1455 | * |
| 1456 | * Return: Returns status, either success or error+reason. |
| 1457 | */ |
| 1458 | static enum pm_ret_status pm_pinctrl_get_pin_groups(unsigned int pin_id, |
| 1459 | unsigned int index, |
| 1460 | uint16_t *groups) |
| 1461 | { |
| 1462 | return pm_api_pinctrl_get_pin_groups(pin_id, index, groups); |
| 1463 | } |
| 1464 | |
| 1465 | /** |
Rajan Vaja | 3511613 | 2018-01-17 02:39:25 -0800 | [diff] [blame] | 1466 | * pm_query_data() - PM API for querying firmware data |
| 1467 | * @arg1 Argument 1 to requested IOCTL call |
| 1468 | * @arg2 Argument 2 to requested IOCTL call |
| 1469 | * @arg3 Argument 3 to requested IOCTL call |
| 1470 | * @arg4 Argument 4 to requested IOCTL call |
| 1471 | * @data Returned output data |
| 1472 | * |
| 1473 | * This function returns requested data. |
Rajan Vaja | 3511613 | 2018-01-17 02:39:25 -0800 | [diff] [blame] | 1474 | */ |
Rajan Vaja | cd82568 | 2020-11-23 21:33:39 -0800 | [diff] [blame] | 1475 | void pm_query_data(enum pm_query_id qid, unsigned int arg1, unsigned int arg2, |
| 1476 | unsigned int arg3, unsigned int *data) |
Rajan Vaja | 3511613 | 2018-01-17 02:39:25 -0800 | [diff] [blame] | 1477 | { |
Rajan Vaja | 3511613 | 2018-01-17 02:39:25 -0800 | [diff] [blame] | 1478 | switch (qid) { |
| 1479 | case PM_QID_CLOCK_GET_NAME: |
Rajan Vaja | cd82568 | 2020-11-23 21:33:39 -0800 | [diff] [blame] | 1480 | pm_clock_get_name(arg1, (char *)data); |
Rajan Vaja | 3511613 | 2018-01-17 02:39:25 -0800 | [diff] [blame] | 1481 | break; |
| 1482 | case PM_QID_CLOCK_GET_TOPOLOGY: |
Rajan Vaja | cd82568 | 2020-11-23 21:33:39 -0800 | [diff] [blame] | 1483 | data[0] = pm_clock_get_topology(arg1, arg2, &data[1]); |
Rajan Vaja | 3511613 | 2018-01-17 02:39:25 -0800 | [diff] [blame] | 1484 | break; |
| 1485 | case PM_QID_CLOCK_GET_FIXEDFACTOR_PARAMS: |
Rajan Vaja | cd82568 | 2020-11-23 21:33:39 -0800 | [diff] [blame] | 1486 | data[0] = pm_clock_get_fixedfactor_params(arg1, &data[1], |
| 1487 | &data[2]); |
Rajan Vaja | 3511613 | 2018-01-17 02:39:25 -0800 | [diff] [blame] | 1488 | break; |
| 1489 | case PM_QID_CLOCK_GET_PARENTS: |
Rajan Vaja | cd82568 | 2020-11-23 21:33:39 -0800 | [diff] [blame] | 1490 | data[0] = pm_clock_get_parents(arg1, arg2, &data[1]); |
Rajan Vaja | 3511613 | 2018-01-17 02:39:25 -0800 | [diff] [blame] | 1491 | break; |
| 1492 | case PM_QID_CLOCK_GET_ATTRIBUTES: |
Rajan Vaja | cd82568 | 2020-11-23 21:33:39 -0800 | [diff] [blame] | 1493 | data[0] = pm_clock_get_attributes(arg1, &data[1]); |
Rajan Vaja | 3511613 | 2018-01-17 02:39:25 -0800 | [diff] [blame] | 1494 | break; |
Rajan Vaja | d5dd836 | 2018-01-30 04:16:31 -0800 | [diff] [blame] | 1495 | case PM_QID_PINCTRL_GET_NUM_PINS: |
Rajan Vaja | cd82568 | 2020-11-23 21:33:39 -0800 | [diff] [blame] | 1496 | data[0] = pm_pinctrl_get_num_pins(&data[1]); |
Rajan Vaja | d5dd836 | 2018-01-30 04:16:31 -0800 | [diff] [blame] | 1497 | break; |
| 1498 | case PM_QID_PINCTRL_GET_NUM_FUNCTIONS: |
Rajan Vaja | cd82568 | 2020-11-23 21:33:39 -0800 | [diff] [blame] | 1499 | data[0] = pm_pinctrl_get_num_functions(&data[1]); |
Rajan Vaja | d5dd836 | 2018-01-30 04:16:31 -0800 | [diff] [blame] | 1500 | break; |
| 1501 | case PM_QID_PINCTRL_GET_NUM_FUNCTION_GROUPS: |
Rajan Vaja | cd82568 | 2020-11-23 21:33:39 -0800 | [diff] [blame] | 1502 | data[0] = pm_pinctrl_get_num_function_groups(arg1, &data[1]); |
Rajan Vaja | d5dd836 | 2018-01-30 04:16:31 -0800 | [diff] [blame] | 1503 | break; |
| 1504 | case PM_QID_PINCTRL_GET_FUNCTION_NAME: |
Rajan Vaja | cd82568 | 2020-11-23 21:33:39 -0800 | [diff] [blame] | 1505 | pm_pinctrl_get_function_name(arg1, (char *)data); |
Rajan Vaja | d5dd836 | 2018-01-30 04:16:31 -0800 | [diff] [blame] | 1506 | break; |
| 1507 | case PM_QID_PINCTRL_GET_FUNCTION_GROUPS: |
Rajan Vaja | cd82568 | 2020-11-23 21:33:39 -0800 | [diff] [blame] | 1508 | data[0] = pm_pinctrl_get_function_groups(arg1, arg2, |
| 1509 | (uint16_t *)&data[1]); |
Rajan Vaja | d5dd836 | 2018-01-30 04:16:31 -0800 | [diff] [blame] | 1510 | break; |
| 1511 | case PM_QID_PINCTRL_GET_PIN_GROUPS: |
Rajan Vaja | cd82568 | 2020-11-23 21:33:39 -0800 | [diff] [blame] | 1512 | data[0] = pm_pinctrl_get_pin_groups(arg1, arg2, |
| 1513 | (uint16_t *)&data[1]); |
Rajan Vaja | d5dd836 | 2018-01-30 04:16:31 -0800 | [diff] [blame] | 1514 | break; |
Rajan Vaja | da95940 | 2018-07-20 03:16:27 -0700 | [diff] [blame] | 1515 | case PM_QID_CLOCK_GET_NUM_CLOCKS: |
Rajan Vaja | cd82568 | 2020-11-23 21:33:39 -0800 | [diff] [blame] | 1516 | data[0] = pm_clock_get_num_clocks(&data[1]); |
Rajan Vaja | da95940 | 2018-07-20 03:16:27 -0700 | [diff] [blame] | 1517 | break; |
Rajan Vaja | b34deca | 2019-03-20 01:13:21 +0530 | [diff] [blame] | 1518 | |
| 1519 | case PM_QID_CLOCK_GET_MAX_DIVISOR: |
Rajan Vaja | cd82568 | 2020-11-23 21:33:39 -0800 | [diff] [blame] | 1520 | data[0] = pm_clock_get_max_divisor(arg1, arg2, &data[1]); |
Rajan Vaja | b34deca | 2019-03-20 01:13:21 +0530 | [diff] [blame] | 1521 | break; |
Rajan Vaja | 3511613 | 2018-01-17 02:39:25 -0800 | [diff] [blame] | 1522 | default: |
Rajan Vaja | cd82568 | 2020-11-23 21:33:39 -0800 | [diff] [blame] | 1523 | data[0] = PM_RET_ERROR_ARGS; |
Rajan Vaja | 3511613 | 2018-01-17 02:39:25 -0800 | [diff] [blame] | 1524 | WARN("Unimplemented query service call: 0x%x\n", qid); |
| 1525 | } |
Rajan Vaja | 3511613 | 2018-01-17 02:39:25 -0800 | [diff] [blame] | 1526 | } |
Siva Durga Prasad Paladugu | f3994cc | 2018-05-01 11:12:55 +0530 | [diff] [blame] | 1527 | |
| 1528 | enum pm_ret_status pm_sha_hash(uint32_t address_high, |
| 1529 | uint32_t address_low, |
| 1530 | uint32_t size, |
| 1531 | uint32_t flags) |
| 1532 | { |
| 1533 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 1534 | |
| 1535 | /* Send request to the PMU */ |
| 1536 | PM_PACK_PAYLOAD5(payload, PM_SECURE_SHA, address_high, address_low, |
| 1537 | size, flags); |
| 1538 | return pm_ipi_send_sync(primary_proc, payload, NULL, 0); |
| 1539 | } |
| 1540 | |
| 1541 | enum pm_ret_status pm_rsa_core(uint32_t address_high, |
| 1542 | uint32_t address_low, |
| 1543 | uint32_t size, |
| 1544 | uint32_t flags) |
| 1545 | { |
| 1546 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 1547 | |
| 1548 | /* Send request to the PMU */ |
| 1549 | PM_PACK_PAYLOAD5(payload, PM_SECURE_RSA, address_high, address_low, |
| 1550 | size, flags); |
| 1551 | return pm_ipi_send_sync(primary_proc, payload, NULL, 0); |
| 1552 | } |
Siva Durga Prasad Paladugu | a4ed4b2 | 2018-04-30 20:06:58 +0530 | [diff] [blame] | 1553 | |
| 1554 | enum pm_ret_status pm_secure_image(uint32_t address_low, |
| 1555 | uint32_t address_high, |
| 1556 | uint32_t key_lo, |
| 1557 | uint32_t key_hi, |
| 1558 | uint32_t *value) |
| 1559 | { |
| 1560 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 1561 | |
| 1562 | /* Send request to the PMU */ |
| 1563 | PM_PACK_PAYLOAD5(payload, PM_SECURE_IMAGE, address_high, address_low, |
| 1564 | key_hi, key_lo); |
| 1565 | return pm_ipi_send_sync(primary_proc, payload, value, 2); |
| 1566 | } |
Siva Durga Prasad Paladugu | 7c6516a | 2018-09-04 17:41:34 +0530 | [diff] [blame] | 1567 | |
| 1568 | /** |
| 1569 | * pm_fpga_read - Perform the fpga configuration readback |
| 1570 | * |
| 1571 | * @reg_numframes: Configuration register offset (or) Number of frames to read |
| 1572 | * @address_low: lower 32-bit Linear memory space address |
| 1573 | * @address_high: higher 32-bit Linear memory space address |
| 1574 | * @readback_type: Type of fpga readback operation |
| 1575 | * 0 -- Configuration Register readback |
| 1576 | * 1 -- Configuration Data readback |
| 1577 | * @value: Value to read |
| 1578 | * |
| 1579 | * This function provides access to the xilfpga library to read |
| 1580 | * the PL configuration. |
| 1581 | * |
| 1582 | * Return: Returns status, either success or error+reason. |
| 1583 | */ |
| 1584 | enum pm_ret_status pm_fpga_read(uint32_t reg_numframes, |
| 1585 | uint32_t address_low, |
| 1586 | uint32_t address_high, |
| 1587 | uint32_t readback_type, |
| 1588 | uint32_t *value) |
| 1589 | { |
| 1590 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 1591 | |
| 1592 | /* Send request to the PMU */ |
| 1593 | PM_PACK_PAYLOAD5(payload, PM_FPGA_READ, reg_numframes, address_low, |
| 1594 | address_high, readback_type); |
| 1595 | return pm_ipi_send_sync(primary_proc, payload, value, 1); |
| 1596 | } |
Jolly Shah | a7cc5ee | 2019-01-02 12:27:00 -0800 | [diff] [blame] | 1597 | |
| 1598 | /* |
| 1599 | * pm_pll_set_parameter() - Set the PLL parameter value |
| 1600 | * @nid Node id of the target PLL |
| 1601 | * @param_id ID of the PLL parameter |
| 1602 | * @value Parameter value to be set |
| 1603 | * |
| 1604 | * Setting the parameter will have physical effect once the PLL mode is set to |
| 1605 | * integer or fractional. |
| 1606 | * |
| 1607 | * @return Error if an argument is not valid or status as returned by the |
| 1608 | * PM controller (PMU) |
| 1609 | */ |
| 1610 | enum pm_ret_status pm_pll_set_parameter(enum pm_node_id nid, |
| 1611 | enum pm_pll_param param_id, |
| 1612 | unsigned int value) |
| 1613 | { |
| 1614 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 1615 | |
| 1616 | /* Check if given node ID is a PLL node */ |
| 1617 | if (nid < NODE_APLL || nid > NODE_IOPLL) |
| 1618 | return PM_RET_ERROR_ARGS; |
| 1619 | |
| 1620 | /* Check if parameter ID is valid and return an error if it's not */ |
| 1621 | if (param_id >= PM_PLL_PARAM_MAX) |
| 1622 | return PM_RET_ERROR_ARGS; |
| 1623 | |
| 1624 | /* Send request to the PMU */ |
| 1625 | PM_PACK_PAYLOAD4(payload, PM_PLL_SET_PARAMETER, nid, param_id, value); |
| 1626 | return pm_ipi_send_sync(primary_proc, payload, NULL, 0); |
| 1627 | } |
Jolly Shah | cb2f45d | 2019-01-04 11:28:38 -0800 | [diff] [blame] | 1628 | |
| 1629 | /** |
| 1630 | * pm_pll_get_parameter() - Get the PLL parameter value |
| 1631 | * @nid Node id of the target PLL |
| 1632 | * @param_id ID of the PLL parameter |
| 1633 | * @value Location to store the parameter value |
| 1634 | * |
| 1635 | * @return Error if an argument is not valid or status as returned by the |
| 1636 | * PM controller (PMU) |
| 1637 | */ |
| 1638 | enum pm_ret_status pm_pll_get_parameter(enum pm_node_id nid, |
| 1639 | enum pm_pll_param param_id, |
| 1640 | unsigned int *value) |
| 1641 | { |
| 1642 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 1643 | |
| 1644 | /* Check if given node ID is a PLL node */ |
| 1645 | if (nid < NODE_APLL || nid > NODE_IOPLL) |
| 1646 | return PM_RET_ERROR_ARGS; |
| 1647 | |
| 1648 | /* Check if parameter ID is valid and return an error if it's not */ |
| 1649 | if (param_id >= PM_PLL_PARAM_MAX) |
| 1650 | return PM_RET_ERROR_ARGS; |
| 1651 | |
| 1652 | /* Send request to the PMU */ |
| 1653 | PM_PACK_PAYLOAD3(payload, PM_PLL_GET_PARAMETER, nid, param_id); |
| 1654 | return pm_ipi_send_sync(primary_proc, payload, value, 1); |
| 1655 | } |
Jolly Shah | 1f0d585 | 2019-01-04 11:32:31 -0800 | [diff] [blame] | 1656 | |
| 1657 | /** |
| 1658 | * pm_pll_set_mode() - Set the PLL mode |
| 1659 | * @nid Node id of the target PLL |
| 1660 | * @mode PLL mode to be set |
| 1661 | * |
| 1662 | * If reset mode is set the PM controller will first bypass the PLL and then |
| 1663 | * assert the reset. If integer or fractional mode is set the PM controller will |
| 1664 | * ensure that the complete PLL programming sequence is satisfied. After this |
| 1665 | * function returns success the PLL is locked and its bypass is deasserted. |
| 1666 | * |
| 1667 | * @return Error if an argument is not valid or status as returned by the |
| 1668 | * PM controller (PMU) |
| 1669 | */ |
| 1670 | enum pm_ret_status pm_pll_set_mode(enum pm_node_id nid, enum pm_pll_mode mode) |
| 1671 | { |
| 1672 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 1673 | |
| 1674 | /* Check if given node ID is a PLL node */ |
| 1675 | if (nid < NODE_APLL || nid > NODE_IOPLL) |
| 1676 | return PM_RET_ERROR_ARGS; |
| 1677 | |
| 1678 | /* Check if PLL mode is valid */ |
| 1679 | if (mode >= PM_PLL_MODE_MAX) |
| 1680 | return PM_RET_ERROR_ARGS; |
| 1681 | |
| 1682 | /* Send request to the PMU */ |
| 1683 | PM_PACK_PAYLOAD3(payload, PM_PLL_SET_MODE, nid, mode); |
| 1684 | return pm_ipi_send_sync(primary_proc, payload, NULL, 0); |
| 1685 | } |
Jolly Shah | 141421e | 2019-01-04 11:35:48 -0800 | [diff] [blame] | 1686 | |
| 1687 | /** |
| 1688 | * pm_pll_get_mode() - Get the PLL mode |
| 1689 | * @nid Node id of the target PLL |
| 1690 | * @mode Location to store the mode of the PLL |
| 1691 | * |
| 1692 | * @return Error if an argument is not valid or status as returned by the |
| 1693 | * PM controller (PMU) |
| 1694 | */ |
| 1695 | enum pm_ret_status pm_pll_get_mode(enum pm_node_id nid, enum pm_pll_mode *mode) |
| 1696 | { |
| 1697 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 1698 | |
| 1699 | /* Check if given node ID is a PLL node */ |
| 1700 | if (nid < NODE_APLL || nid > NODE_IOPLL) |
| 1701 | return PM_RET_ERROR_ARGS; |
| 1702 | |
| 1703 | /* Send request to the PMU */ |
| 1704 | PM_PACK_PAYLOAD2(payload, PM_PLL_GET_MODE, nid); |
| 1705 | return pm_ipi_send_sync(primary_proc, payload, mode, 1); |
| 1706 | } |
Kalyani Akula | 6ebe483 | 2020-11-22 22:42:10 -0800 | [diff] [blame] | 1707 | |
| 1708 | /** |
| 1709 | * pm_register_access() - PM API for register read/write access data |
| 1710 | * |
| 1711 | * @register_access_id Register_access_id which says register read/write |
| 1712 | * |
| 1713 | * @address Address of the register to be accessed |
| 1714 | * |
| 1715 | * @mask Mask value to be used while writing value |
| 1716 | * |
| 1717 | * @value Value to be written to register |
| 1718 | * |
| 1719 | * @out Returned output data |
| 1720 | * |
| 1721 | * This function returns requested data. |
| 1722 | * |
| 1723 | * @return Returns status, either success or error+reason |
| 1724 | */ |
| 1725 | enum pm_ret_status pm_register_access(unsigned int register_access_id, |
| 1726 | unsigned int address, |
| 1727 | unsigned int mask, |
| 1728 | unsigned int value, |
| 1729 | unsigned int *out) |
| 1730 | { |
| 1731 | enum pm_ret_status ret; |
| 1732 | |
| 1733 | if (((ZYNQMP_CSU_BASEADDR & address) != ZYNQMP_CSU_BASEADDR) && |
| 1734 | ((CSUDMA_BASE & address) != CSUDMA_BASE) && |
| 1735 | ((RSA_CORE_BASE & address) != RSA_CORE_BASE) && |
| 1736 | ((PMU_GLOBAL_BASE & address) != PMU_GLOBAL_BASE)) |
| 1737 | return PM_RET_ERROR_ACCESS; |
| 1738 | |
| 1739 | switch (register_access_id) { |
| 1740 | case CONFIG_REG_WRITE: |
| 1741 | ret = pm_mmio_write(address, mask, value); |
| 1742 | break; |
| 1743 | case CONFIG_REG_READ: |
| 1744 | ret = pm_mmio_read(address, out); |
| 1745 | break; |
| 1746 | default: |
| 1747 | ret = PM_RET_ERROR_ARGS; |
| 1748 | WARN("Unimplemented register_access call\n\r"); |
| 1749 | } |
| 1750 | return ret; |
| 1751 | } |
VNSL Durga | deb1a36 | 2020-11-23 04:46:04 -0800 | [diff] [blame] | 1752 | |
| 1753 | /** |
| 1754 | * pm_efuse_access() - To program or read efuse bits. |
| 1755 | * |
| 1756 | * This function provides access to the xilskey library to program/read |
| 1757 | * efuse bits. |
| 1758 | * |
| 1759 | * address_low: lower 32-bit Linear memory space address |
| 1760 | * address_high: higher 32-bit Linear memory space address |
| 1761 | * |
| 1762 | * value: Returned output value |
| 1763 | * |
| 1764 | * @return Returns status, either success or error+reason |
| 1765 | * |
| 1766 | */ |
| 1767 | enum pm_ret_status pm_efuse_access(uint32_t address_high, |
| 1768 | uint32_t address_low, |
| 1769 | uint32_t *value) |
| 1770 | { |
| 1771 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 1772 | |
| 1773 | /* Send request to the PMU */ |
| 1774 | PM_PACK_PAYLOAD3(payload, PM_EFUSE_ACCESS, address_high, address_low); |
| 1775 | |
Venkatesh Yadav Abbarapu | 7ace4af | 2020-11-23 04:26:54 -0800 | [diff] [blame] | 1776 | return pm_ipi_send_sync(primary_proc, payload, value, 1); |
| 1777 | } |
| 1778 | |
| 1779 | enum pm_ret_status em_set_action(unsigned int *value) |
| 1780 | { |
| 1781 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 1782 | |
| 1783 | /* Send request to the PMU */ |
| 1784 | EM_PACK_PAYLOAD1(payload, EM_SET_ACTION); |
| 1785 | return pm_ipi_send_sync(primary_proc, payload, value, 1); |
| 1786 | } |
| 1787 | |
| 1788 | enum pm_ret_status em_remove_action(unsigned int *value) |
| 1789 | { |
| 1790 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 1791 | |
| 1792 | /* Send request to the PMU */ |
| 1793 | EM_PACK_PAYLOAD1(payload, EM_REMOVE_ACTION); |
| 1794 | return pm_ipi_send_sync(primary_proc, payload, value, 1); |
| 1795 | } |
| 1796 | |
| 1797 | enum pm_ret_status em_send_errors(unsigned int *value) |
| 1798 | { |
| 1799 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 1800 | |
| 1801 | /* Send request to the PMU */ |
| 1802 | EM_PACK_PAYLOAD1(payload, EM_SEND_ERRORS); |
VNSL Durga | deb1a36 | 2020-11-23 04:46:04 -0800 | [diff] [blame] | 1803 | return pm_ipi_send_sync(primary_proc, payload, value, 1); |
| 1804 | } |