Soren Brinkmann | 76fcae3 | 2016-03-06 20:16:27 -0800 | [diff] [blame] | 1 | /* |
Rajan Vaja | 02d1842 | 2019-03-04 11:09:39 +0530 | [diff] [blame] | 2 | * Copyright (c) 2013-2020, 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 | |
Siva Durga Prasad Paladugu | 1f80d3f | 2018-04-30 15:56:10 +0530 | [diff] [blame] | 23 | /* default shutdown/reboot scope is system(2) */ |
| 24 | static unsigned int pm_shutdown_scope = PMF_SHUTDOWN_SUBTYPE_SYSTEM; |
| 25 | |
| 26 | /** |
| 27 | * pm_get_shutdown_scope() - Get the currently set shutdown scope |
| 28 | * |
| 29 | * @return Shutdown scope value |
| 30 | */ |
| 31 | unsigned int pm_get_shutdown_scope(void) |
| 32 | { |
| 33 | return pm_shutdown_scope; |
| 34 | } |
| 35 | |
Soren Brinkmann | 76fcae3 | 2016-03-06 20:16:27 -0800 | [diff] [blame] | 36 | /** |
| 37 | * Assigning of argument values into array elements. |
| 38 | */ |
| 39 | #define PM_PACK_PAYLOAD1(pl, arg0) { \ |
| 40 | pl[0] = (uint32_t)(arg0); \ |
| 41 | } |
| 42 | |
| 43 | #define PM_PACK_PAYLOAD2(pl, arg0, arg1) { \ |
| 44 | pl[1] = (uint32_t)(arg1); \ |
| 45 | PM_PACK_PAYLOAD1(pl, arg0); \ |
| 46 | } |
| 47 | |
| 48 | #define PM_PACK_PAYLOAD3(pl, arg0, arg1, arg2) { \ |
| 49 | pl[2] = (uint32_t)(arg2); \ |
| 50 | PM_PACK_PAYLOAD2(pl, arg0, arg1); \ |
| 51 | } |
| 52 | |
| 53 | #define PM_PACK_PAYLOAD4(pl, arg0, arg1, arg2, arg3) { \ |
| 54 | pl[3] = (uint32_t)(arg3); \ |
| 55 | PM_PACK_PAYLOAD3(pl, arg0, arg1, arg2); \ |
| 56 | } |
| 57 | |
| 58 | #define PM_PACK_PAYLOAD5(pl, arg0, arg1, arg2, arg3, arg4) { \ |
| 59 | pl[4] = (uint32_t)(arg4); \ |
| 60 | PM_PACK_PAYLOAD4(pl, arg0, arg1, arg2, arg3); \ |
| 61 | } |
| 62 | |
| 63 | #define PM_PACK_PAYLOAD6(pl, arg0, arg1, arg2, arg3, arg4, arg5) { \ |
| 64 | pl[5] = (uint32_t)(arg5); \ |
| 65 | PM_PACK_PAYLOAD5(pl, arg0, arg1, arg2, arg3, arg4); \ |
| 66 | } |
| 67 | |
Venkatesh Yadav Abbarapu | 7ace4af | 2020-11-23 04:26:54 -0800 | [diff] [blame] | 68 | #define EM_PACK_PAYLOAD1(pl, arg0) { \ |
| 69 | pl[0] = (uint16_t)(0xE) << 16 | (uint16_t)arg0; \ |
| 70 | } |
| 71 | |
Soren Brinkmann | 76fcae3 | 2016-03-06 20:16:27 -0800 | [diff] [blame] | 72 | /** |
| 73 | * pm_self_suspend() - PM call for processor to suspend itself |
| 74 | * @nid Node id of the processor or subsystem |
| 75 | * @latency Requested maximum wakeup latency (not supported) |
Filip Drazic | 0bd9d0c | 2016-07-20 17:17:39 +0200 | [diff] [blame] | 76 | * @state Requested state |
Soren Brinkmann | 76fcae3 | 2016-03-06 20:16:27 -0800 | [diff] [blame] | 77 | * @address Resume address |
| 78 | * |
| 79 | * This is a blocking call, it will return only once PMU has responded. |
| 80 | * On a wakeup, resume address will be automatically set by PMU. |
| 81 | * |
| 82 | * @return Returns status, either success or error+reason |
| 83 | */ |
| 84 | enum pm_ret_status pm_self_suspend(enum pm_node_id nid, |
| 85 | unsigned int latency, |
| 86 | unsigned int state, |
| 87 | uintptr_t address) |
| 88 | { |
| 89 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 90 | unsigned int cpuid = plat_my_core_pos(); |
| 91 | const struct pm_proc *proc = pm_get_proc(cpuid); |
| 92 | |
| 93 | /* |
| 94 | * Do client specific suspend operations |
| 95 | * (e.g. set powerdown request bit) |
| 96 | */ |
Filip Drazic | 4c0765a | 2016-07-26 12:11:33 +0200 | [diff] [blame] | 97 | pm_client_suspend(proc, state); |
Soren Brinkmann | 76fcae3 | 2016-03-06 20:16:27 -0800 | [diff] [blame] | 98 | /* Send request to the PMU */ |
| 99 | PM_PACK_PAYLOAD6(payload, PM_SELF_SUSPEND, proc->node_id, latency, |
| 100 | state, address, (address >> 32)); |
Soren Brinkmann | d6c9e03 | 2016-09-22 11:35:47 -0700 | [diff] [blame] | 101 | return pm_ipi_send_sync(proc, payload, NULL, 0); |
Soren Brinkmann | 76fcae3 | 2016-03-06 20:16:27 -0800 | [diff] [blame] | 102 | } |
| 103 | |
| 104 | /** |
| 105 | * pm_req_suspend() - PM call to request for another PU or subsystem to |
| 106 | * be suspended gracefully. |
| 107 | * @target Node id of the targeted PU or subsystem |
| 108 | * @ack Flag to specify whether acknowledge is requested |
| 109 | * @latency Requested wakeup latency (not supported) |
| 110 | * @state Requested state (not supported) |
| 111 | * |
| 112 | * @return Returns status, either success or error+reason |
| 113 | */ |
| 114 | enum pm_ret_status pm_req_suspend(enum pm_node_id target, |
| 115 | enum pm_request_ack ack, |
| 116 | unsigned int latency, unsigned int state) |
| 117 | { |
| 118 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 119 | |
| 120 | /* Send request to the PMU */ |
| 121 | PM_PACK_PAYLOAD5(payload, PM_REQ_SUSPEND, target, ack, latency, state); |
| 122 | if (ack == REQ_ACK_BLOCKING) |
Soren Brinkmann | d6c9e03 | 2016-09-22 11:35:47 -0700 | [diff] [blame] | 123 | return pm_ipi_send_sync(primary_proc, payload, NULL, 0); |
Soren Brinkmann | 76fcae3 | 2016-03-06 20:16:27 -0800 | [diff] [blame] | 124 | else |
| 125 | return pm_ipi_send(primary_proc, payload); |
| 126 | } |
| 127 | |
| 128 | /** |
| 129 | * pm_req_wakeup() - PM call for processor to wake up selected processor |
| 130 | * or subsystem |
| 131 | * @target Node id of the processor or subsystem to wake up |
| 132 | * @ack Flag to specify whether acknowledge requested |
| 133 | * @set_address Resume address presence indicator |
| 134 | * 1 resume address specified, 0 otherwise |
| 135 | * @address Resume address |
| 136 | * |
| 137 | * This API function is either used to power up another APU core for SMP |
| 138 | * (by PSCI) or to power up an entirely different PU or subsystem, such |
| 139 | * as RPU0, RPU, or PL_CORE_xx. Resume address for the target PU will be |
| 140 | * automatically set by PMU. |
| 141 | * |
| 142 | * @return Returns status, either success or error+reason |
| 143 | */ |
| 144 | enum pm_ret_status pm_req_wakeup(enum pm_node_id target, |
| 145 | unsigned int set_address, |
| 146 | uintptr_t address, |
| 147 | enum pm_request_ack ack) |
| 148 | { |
| 149 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 150 | uint64_t encoded_address; |
Soren Brinkmann | 76fcae3 | 2016-03-06 20:16:27 -0800 | [diff] [blame] | 151 | |
Soren Brinkmann | 76fcae3 | 2016-03-06 20:16:27 -0800 | [diff] [blame] | 152 | |
| 153 | /* encode set Address into 1st bit of address */ |
| 154 | encoded_address = address; |
| 155 | encoded_address |= !!set_address; |
| 156 | |
| 157 | /* Send request to the PMU to perform the wake of the PU */ |
| 158 | PM_PACK_PAYLOAD5(payload, PM_REQ_WAKEUP, target, encoded_address, |
| 159 | encoded_address >> 32, ack); |
| 160 | |
| 161 | if (ack == REQ_ACK_BLOCKING) |
Soren Brinkmann | d6c9e03 | 2016-09-22 11:35:47 -0700 | [diff] [blame] | 162 | return pm_ipi_send_sync(primary_proc, payload, NULL, 0); |
Soren Brinkmann | 76fcae3 | 2016-03-06 20:16:27 -0800 | [diff] [blame] | 163 | else |
| 164 | return pm_ipi_send(primary_proc, payload); |
| 165 | } |
| 166 | |
| 167 | /** |
| 168 | * pm_force_powerdown() - PM call to request for another PU or subsystem to |
| 169 | * be powered down forcefully |
| 170 | * @target Node id of the targeted PU or subsystem |
| 171 | * @ack Flag to specify whether acknowledge is requested |
| 172 | * |
| 173 | * @return Returns status, either success or error+reason |
| 174 | */ |
| 175 | enum pm_ret_status pm_force_powerdown(enum pm_node_id target, |
| 176 | enum pm_request_ack ack) |
| 177 | { |
| 178 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 179 | |
| 180 | /* Send request to the PMU */ |
| 181 | PM_PACK_PAYLOAD3(payload, PM_FORCE_POWERDOWN, target, ack); |
| 182 | |
| 183 | if (ack == REQ_ACK_BLOCKING) |
Soren Brinkmann | d6c9e03 | 2016-09-22 11:35:47 -0700 | [diff] [blame] | 184 | return pm_ipi_send_sync(primary_proc, payload, NULL, 0); |
Soren Brinkmann | 76fcae3 | 2016-03-06 20:16:27 -0800 | [diff] [blame] | 185 | else |
| 186 | return pm_ipi_send(primary_proc, payload); |
| 187 | } |
| 188 | |
| 189 | /** |
| 190 | * pm_abort_suspend() - PM call to announce that a prior suspend request |
| 191 | * is to be aborted. |
| 192 | * @reason Reason for the abort |
| 193 | * |
| 194 | * Calling PU expects the PMU to abort the initiated suspend procedure. |
| 195 | * This is a non-blocking call without any acknowledge. |
| 196 | * |
| 197 | * @return Returns status, either success or error+reason |
| 198 | */ |
| 199 | enum pm_ret_status pm_abort_suspend(enum pm_abort_reason reason) |
| 200 | { |
| 201 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 202 | |
| 203 | /* |
| 204 | * Do client specific abort suspend operations |
| 205 | * (e.g. enable interrupts and clear powerdown request bit) |
| 206 | */ |
| 207 | pm_client_abort_suspend(); |
| 208 | /* Send request to the PMU */ |
| 209 | /* TODO: allow passing the node ID of the affected CPU */ |
| 210 | PM_PACK_PAYLOAD3(payload, PM_ABORT_SUSPEND, reason, |
| 211 | primary_proc->node_id); |
Abhyuday Godhasara | 0d9b765 | 2021-06-24 05:49:04 -0700 | [diff] [blame] | 212 | return pm_ipi_send_sync(primary_proc, payload, NULL, 0); |
Soren Brinkmann | 76fcae3 | 2016-03-06 20:16:27 -0800 | [diff] [blame] | 213 | } |
| 214 | |
| 215 | /** |
| 216 | * pm_set_wakeup_source() - PM call to specify the wakeup source while suspended |
| 217 | * @target Node id of the targeted PU or subsystem |
| 218 | * @wkup_node Node id of the wakeup peripheral |
| 219 | * @enable Enable or disable the specified peripheral as wake source |
| 220 | * |
| 221 | * @return Returns status, either success or error+reason |
| 222 | */ |
| 223 | enum pm_ret_status pm_set_wakeup_source(enum pm_node_id target, |
| 224 | enum pm_node_id wkup_node, |
| 225 | unsigned int enable) |
| 226 | { |
| 227 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 228 | |
| 229 | PM_PACK_PAYLOAD4(payload, PM_SET_WAKEUP_SOURCE, target, wkup_node, |
| 230 | enable); |
Abhyuday Godhasara | 0d9b765 | 2021-06-24 05:49:04 -0700 | [diff] [blame] | 231 | return pm_ipi_send_sync(primary_proc, payload, NULL, 0); |
Soren Brinkmann | 76fcae3 | 2016-03-06 20:16:27 -0800 | [diff] [blame] | 232 | } |
| 233 | |
| 234 | /** |
| 235 | * 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] | 236 | * @type Shutdown or restart? 0=shutdown, 1=restart, 2=setscope |
| 237 | * @subtype Scope: 0=APU-subsystem, 1=PS, 2=system |
Soren Brinkmann | 76fcae3 | 2016-03-06 20:16:27 -0800 | [diff] [blame] | 238 | * |
| 239 | * @return Returns status, either success or error+reason |
| 240 | */ |
Soren Brinkmann | 58fbb9b | 2016-09-02 09:50:54 -0700 | [diff] [blame] | 241 | 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] | 242 | { |
| 243 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 244 | |
Siva Durga Prasad Paladugu | 1f80d3f | 2018-04-30 15:56:10 +0530 | [diff] [blame] | 245 | if (type == PMF_SHUTDOWN_TYPE_SETSCOPE_ONLY) { |
| 246 | /* Setting scope for subsequent PSCI reboot or shutdown */ |
| 247 | pm_shutdown_scope = subtype; |
| 248 | return PM_RET_SUCCESS; |
| 249 | } |
| 250 | |
Soren Brinkmann | 58fbb9b | 2016-09-02 09:50:54 -0700 | [diff] [blame] | 251 | PM_PACK_PAYLOAD3(payload, PM_SYSTEM_SHUTDOWN, type, subtype); |
Tejas Patel | af4b10e | 2018-02-09 02:42:59 -0800 | [diff] [blame] | 252 | return pm_ipi_send_non_blocking(primary_proc, payload); |
Soren Brinkmann | 76fcae3 | 2016-03-06 20:16:27 -0800 | [diff] [blame] | 253 | } |
| 254 | |
| 255 | /* APIs for managing PM slaves: */ |
| 256 | |
| 257 | /** |
| 258 | * pm_req_node() - PM call to request a node with specific capabilities |
| 259 | * @nid Node id of the slave |
| 260 | * @capabilities Requested capabilities of the slave |
| 261 | * @qos Quality of service (not supported) |
| 262 | * @ack Flag to specify whether acknowledge is requested |
| 263 | * |
| 264 | * @return Returns status, either success or error+reason |
| 265 | */ |
| 266 | enum pm_ret_status pm_req_node(enum pm_node_id nid, |
| 267 | unsigned int capabilities, |
| 268 | unsigned int qos, |
| 269 | enum pm_request_ack ack) |
| 270 | { |
| 271 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 272 | |
| 273 | PM_PACK_PAYLOAD5(payload, PM_REQ_NODE, nid, capabilities, qos, ack); |
| 274 | |
| 275 | if (ack == REQ_ACK_BLOCKING) |
Soren Brinkmann | d6c9e03 | 2016-09-22 11:35:47 -0700 | [diff] [blame] | 276 | return pm_ipi_send_sync(primary_proc, payload, NULL, 0); |
Soren Brinkmann | 76fcae3 | 2016-03-06 20:16:27 -0800 | [diff] [blame] | 277 | else |
| 278 | return pm_ipi_send(primary_proc, payload); |
| 279 | } |
| 280 | |
| 281 | /** |
| 282 | * pm_set_requirement() - PM call to set requirement for PM slaves |
| 283 | * @nid Node id of the slave |
| 284 | * @capabilities Requested capabilities of the slave |
| 285 | * @qos Quality of service (not supported) |
| 286 | * @ack Flag to specify whether acknowledge is requested |
| 287 | * |
| 288 | * This API function is to be used for slaves a PU already has requested |
| 289 | * |
| 290 | * @return Returns status, either success or error+reason |
| 291 | */ |
| 292 | enum pm_ret_status pm_set_requirement(enum pm_node_id nid, |
| 293 | unsigned int capabilities, |
| 294 | unsigned int qos, |
| 295 | enum pm_request_ack ack) |
| 296 | { |
| 297 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 298 | |
| 299 | PM_PACK_PAYLOAD5(payload, PM_SET_REQUIREMENT, nid, capabilities, qos, |
| 300 | ack); |
| 301 | |
| 302 | if (ack == REQ_ACK_BLOCKING) |
Soren Brinkmann | d6c9e03 | 2016-09-22 11:35:47 -0700 | [diff] [blame] | 303 | return pm_ipi_send_sync(primary_proc, payload, NULL, 0); |
Soren Brinkmann | 76fcae3 | 2016-03-06 20:16:27 -0800 | [diff] [blame] | 304 | else |
| 305 | return pm_ipi_send(primary_proc, payload); |
| 306 | } |
| 307 | |
| 308 | /** |
| 309 | * pm_release_node() - PM call to release a node |
| 310 | * @nid Node id of the slave |
| 311 | * |
| 312 | * @return Returns status, either success or error+reason |
| 313 | */ |
| 314 | enum pm_ret_status pm_release_node(enum pm_node_id nid) |
| 315 | { |
| 316 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 317 | |
| 318 | PM_PACK_PAYLOAD2(payload, PM_RELEASE_NODE, nid); |
Abhyuday Godhasara | 0d9b765 | 2021-06-24 05:49:04 -0700 | [diff] [blame] | 319 | return pm_ipi_send_sync(primary_proc, payload, NULL, 0); |
Soren Brinkmann | 76fcae3 | 2016-03-06 20:16:27 -0800 | [diff] [blame] | 320 | } |
| 321 | |
| 322 | /** |
| 323 | * pm_set_max_latency() - PM call to set wakeup latency requirements |
| 324 | * @nid Node id of the slave |
| 325 | * @latency Requested maximum wakeup latency |
| 326 | * |
| 327 | * @return Returns status, either success or error+reason |
| 328 | */ |
| 329 | enum pm_ret_status pm_set_max_latency(enum pm_node_id nid, |
| 330 | unsigned int latency) |
| 331 | { |
| 332 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 333 | |
| 334 | PM_PACK_PAYLOAD3(payload, PM_SET_MAX_LATENCY, nid, latency); |
Abhyuday Godhasara | 0d9b765 | 2021-06-24 05:49:04 -0700 | [diff] [blame] | 335 | return pm_ipi_send_sync(primary_proc, payload, NULL, 0); |
Soren Brinkmann | 76fcae3 | 2016-03-06 20:16:27 -0800 | [diff] [blame] | 336 | } |
| 337 | |
| 338 | /* Miscellaneous API functions */ |
| 339 | |
| 340 | /** |
| 341 | * pm_get_api_version() - Get version number of PMU PM firmware |
| 342 | * @version Returns 32-bit version number of PMU Power Management Firmware |
| 343 | * |
| 344 | * @return Returns status, either success or error+reason |
| 345 | */ |
| 346 | enum pm_ret_status pm_get_api_version(unsigned int *version) |
| 347 | { |
| 348 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 349 | |
| 350 | /* Send request to the PMU */ |
| 351 | PM_PACK_PAYLOAD1(payload, PM_GET_API_VERSION); |
Soren Brinkmann | d6c9e03 | 2016-09-22 11:35:47 -0700 | [diff] [blame] | 352 | return pm_ipi_send_sync(primary_proc, payload, version, 1); |
Soren Brinkmann | 76fcae3 | 2016-03-06 20:16:27 -0800 | [diff] [blame] | 353 | } |
| 354 | |
| 355 | /** |
| 356 | * pm_set_configuration() - PM call to set system configuration |
| 357 | * @phys_addr Physical 32-bit address of data structure in memory |
| 358 | * |
| 359 | * @return Returns status, either success or error+reason |
| 360 | */ |
| 361 | enum pm_ret_status pm_set_configuration(unsigned int phys_addr) |
| 362 | { |
Luca Ceresoli | f00986c | 2019-02-28 22:15:35 +0100 | [diff] [blame] | 363 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 364 | |
| 365 | PM_PACK_PAYLOAD2(payload, PM_SET_CONFIGURATION, phys_addr); |
| 366 | return pm_ipi_send_sync(primary_proc, payload, NULL, 0); |
Soren Brinkmann | 76fcae3 | 2016-03-06 20:16:27 -0800 | [diff] [blame] | 367 | } |
| 368 | |
| 369 | /** |
Filip Drazic | f2ddd91 | 2017-03-15 11:50:47 +0100 | [diff] [blame] | 370 | * pm_init_finalize() - Call to notify PMU firmware that master has power |
| 371 | * management enabled and that it has finished its |
| 372 | * initialization |
| 373 | * |
| 374 | * @return Status returned by the PMU firmware |
| 375 | */ |
| 376 | enum pm_ret_status pm_init_finalize(void) |
| 377 | { |
| 378 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 379 | |
| 380 | /* Send request to the PMU */ |
| 381 | PM_PACK_PAYLOAD1(payload, PM_INIT_FINALIZE); |
| 382 | return pm_ipi_send_sync(primary_proc, payload, NULL, 0); |
| 383 | } |
| 384 | |
| 385 | /** |
Anes Hadziahmetagic | 1caf88e | 2017-01-27 18:42:44 +0100 | [diff] [blame] | 386 | * pm_get_node_status() - PM call to request a node's current status |
| 387 | * @nid Node id |
| 388 | * @ret_buff Buffer for the return values: |
| 389 | * [0] - Current power state of the node |
| 390 | * [1] - Current requirements for the node (slave nodes only) |
| 391 | * [2] - Current usage status for the node (slave nodes only) |
Soren Brinkmann | 76fcae3 | 2016-03-06 20:16:27 -0800 | [diff] [blame] | 392 | * |
| 393 | * @return Returns status, either success or error+reason |
| 394 | */ |
Anes Hadziahmetagic | 1caf88e | 2017-01-27 18:42:44 +0100 | [diff] [blame] | 395 | enum pm_ret_status pm_get_node_status(enum pm_node_id nid, |
| 396 | uint32_t *ret_buff) |
Soren Brinkmann | 76fcae3 | 2016-03-06 20:16:27 -0800 | [diff] [blame] | 397 | { |
Soren Brinkmann | 76fcae3 | 2016-03-06 20:16:27 -0800 | [diff] [blame] | 398 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 399 | |
| 400 | PM_PACK_PAYLOAD2(payload, PM_GET_NODE_STATUS, nid); |
Anes Hadziahmetagic | 1caf88e | 2017-01-27 18:42:44 +0100 | [diff] [blame] | 401 | return pm_ipi_send_sync(primary_proc, payload, ret_buff, 3); |
Soren Brinkmann | 76fcae3 | 2016-03-06 20:16:27 -0800 | [diff] [blame] | 402 | } |
| 403 | |
| 404 | /** |
| 405 | * pm_register_notifier() - Register the PU to be notified of PM events |
| 406 | * @nid Node id of the slave |
| 407 | * @event The event to be notified about |
| 408 | * @wake Wake up on event |
| 409 | * @enable Enable or disable the notifier |
| 410 | * |
| 411 | * @return Returns status, either success or error+reason |
| 412 | */ |
| 413 | enum pm_ret_status pm_register_notifier(enum pm_node_id nid, |
| 414 | unsigned int event, |
| 415 | unsigned int wake, |
| 416 | unsigned int enable) |
| 417 | { |
Anes Hadziahmetagic | c95ae09 | 2016-05-12 16:17:34 +0200 | [diff] [blame] | 418 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 419 | |
| 420 | PM_PACK_PAYLOAD5(payload, PM_REGISTER_NOTIFIER, |
| 421 | nid, event, wake, enable); |
| 422 | |
Soren Brinkmann | a1b0a90 | 2016-09-30 11:30:21 -0700 | [diff] [blame] | 423 | return pm_ipi_send_sync(primary_proc, payload, NULL, 0); |
Soren Brinkmann | 76fcae3 | 2016-03-06 20:16:27 -0800 | [diff] [blame] | 424 | } |
| 425 | |
| 426 | /** |
Anes Hadziahmetagic | 92aee01 | 2016-05-12 16:17:30 +0200 | [diff] [blame] | 427 | * pm_get_op_characteristic() - PM call to request operating characteristics |
| 428 | * of a node |
| 429 | * @nid Node id of the slave |
| 430 | * @type Type of the operating characteristic |
| 431 | * (power, temperature and latency) |
| 432 | * @result Returns the operating characteristic for the requested node, |
| 433 | * specified by the type |
Soren Brinkmann | 76fcae3 | 2016-03-06 20:16:27 -0800 | [diff] [blame] | 434 | * |
| 435 | * @return Returns status, either success or error+reason |
| 436 | */ |
| 437 | enum pm_ret_status pm_get_op_characteristic(enum pm_node_id nid, |
Anes Hadziahmetagic | 92aee01 | 2016-05-12 16:17:30 +0200 | [diff] [blame] | 438 | enum pm_opchar_type type, |
| 439 | uint32_t *result) |
Soren Brinkmann | 76fcae3 | 2016-03-06 20:16:27 -0800 | [diff] [blame] | 440 | { |
Anes Hadziahmetagic | 92aee01 | 2016-05-12 16:17:30 +0200 | [diff] [blame] | 441 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 442 | |
| 443 | /* Send request to the PMU */ |
| 444 | PM_PACK_PAYLOAD3(payload, PM_GET_OP_CHARACTERISTIC, nid, type); |
Soren Brinkmann | d6c9e03 | 2016-09-22 11:35:47 -0700 | [diff] [blame] | 445 | return pm_ipi_send_sync(primary_proc, payload, result, 1); |
Soren Brinkmann | 76fcae3 | 2016-03-06 20:16:27 -0800 | [diff] [blame] | 446 | } |
| 447 | |
| 448 | /* Direct-Control API functions */ |
| 449 | |
| 450 | /** |
| 451 | * pm_reset_assert() - Assert reset |
| 452 | * @reset Reset ID |
| 453 | * @assert Assert (1) or de-assert (0) |
| 454 | * |
| 455 | * @return Returns status, either success or error+reason |
| 456 | */ |
| 457 | enum pm_ret_status pm_reset_assert(unsigned int reset, |
| 458 | unsigned int assert) |
| 459 | { |
| 460 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 461 | |
| 462 | /* Send request to the PMU */ |
| 463 | PM_PACK_PAYLOAD3(payload, PM_RESET_ASSERT, reset, assert); |
Abhyuday Godhasara | 0d9b765 | 2021-06-24 05:49:04 -0700 | [diff] [blame] | 464 | return pm_ipi_send_sync(primary_proc, payload, NULL, 0); |
Soren Brinkmann | 76fcae3 | 2016-03-06 20:16:27 -0800 | [diff] [blame] | 465 | } |
| 466 | |
| 467 | /** |
| 468 | * pm_reset_get_status() - Get current status of a reset line |
| 469 | * @reset Reset ID |
| 470 | * @reset_status Returns current status of selected reset line |
| 471 | * |
| 472 | * @return Returns status, either success or error+reason |
| 473 | */ |
| 474 | enum pm_ret_status pm_reset_get_status(unsigned int reset, |
| 475 | unsigned int *reset_status) |
| 476 | { |
| 477 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 478 | |
| 479 | /* Send request to the PMU */ |
| 480 | PM_PACK_PAYLOAD2(payload, PM_RESET_GET_STATUS, reset); |
Soren Brinkmann | d6c9e03 | 2016-09-22 11:35:47 -0700 | [diff] [blame] | 481 | return pm_ipi_send_sync(primary_proc, payload, reset_status, 1); |
Soren Brinkmann | 76fcae3 | 2016-03-06 20:16:27 -0800 | [diff] [blame] | 482 | } |
| 483 | |
| 484 | /** |
| 485 | * pm_mmio_write() - Perform write to protected mmio |
| 486 | * @address Address to write to |
| 487 | * @mask Mask to apply |
| 488 | * @value Value to write |
| 489 | * |
| 490 | * This function provides access to PM-related control registers |
| 491 | * that may not be directly accessible by a particular PU. |
| 492 | * |
| 493 | * @return Returns status, either success or error+reason |
| 494 | */ |
| 495 | enum pm_ret_status pm_mmio_write(uintptr_t address, |
| 496 | unsigned int mask, |
| 497 | unsigned int value) |
| 498 | { |
| 499 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 500 | |
| 501 | /* Send request to the PMU */ |
| 502 | PM_PACK_PAYLOAD4(payload, PM_MMIO_WRITE, address, mask, value); |
Soren Brinkmann | d6c9e03 | 2016-09-22 11:35:47 -0700 | [diff] [blame] | 503 | return pm_ipi_send_sync(primary_proc, payload, NULL, 0); |
Soren Brinkmann | 76fcae3 | 2016-03-06 20:16:27 -0800 | [diff] [blame] | 504 | } |
| 505 | |
| 506 | /** |
| 507 | * pm_mmio_read() - Read value from protected mmio |
| 508 | * @address Address to write to |
| 509 | * @value Value to write |
| 510 | * |
| 511 | * This function provides access to PM-related control registers |
| 512 | * that may not be directly accessible by a particular PU. |
| 513 | * |
| 514 | * @return Returns status, either success or error+reason |
| 515 | */ |
| 516 | enum pm_ret_status pm_mmio_read(uintptr_t address, unsigned int *value) |
| 517 | { |
| 518 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 519 | |
| 520 | /* Send request to the PMU */ |
| 521 | PM_PACK_PAYLOAD2(payload, PM_MMIO_READ, address); |
Soren Brinkmann | d6c9e03 | 2016-09-22 11:35:47 -0700 | [diff] [blame] | 522 | return pm_ipi_send_sync(primary_proc, payload, value, 1); |
Soren Brinkmann | 76fcae3 | 2016-03-06 20:16:27 -0800 | [diff] [blame] | 523 | } |
Nava kishore Manne | 68d460c | 2016-08-20 23:18:09 +0530 | [diff] [blame] | 524 | |
| 525 | /** |
| 526 | * pm_fpga_load() - Load the bitstream into the PL. |
| 527 | * |
| 528 | * This function provides access to the xilfpga library to load |
| 529 | * the Bit-stream into PL. |
| 530 | * |
| 531 | * address_low: lower 32-bit Linear memory space address |
| 532 | * |
| 533 | * address_high: higher 32-bit Linear memory space address |
| 534 | * |
| 535 | * size: Number of 32bit words |
| 536 | * |
| 537 | * @return Returns status, either success or error+reason |
| 538 | */ |
| 539 | enum pm_ret_status pm_fpga_load(uint32_t address_low, |
| 540 | uint32_t address_high, |
| 541 | uint32_t size, |
| 542 | uint32_t flags) |
| 543 | { |
| 544 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 545 | |
| 546 | /* Send request to the PMU */ |
| 547 | PM_PACK_PAYLOAD5(payload, PM_FPGA_LOAD, address_high, address_low, |
| 548 | size, flags); |
Siva Durga Prasad Paladugu | bf83b9c | 2018-02-07 13:13:01 +0530 | [diff] [blame] | 549 | return pm_ipi_send_sync(primary_proc, payload, NULL, 0); |
Nava kishore Manne | 68d460c | 2016-08-20 23:18:09 +0530 | [diff] [blame] | 550 | } |
| 551 | |
| 552 | /** |
| 553 | * pm_fpga_get_status() - Read value from fpga status register |
| 554 | * @value Value to read |
| 555 | * |
| 556 | * This function provides access to the xilfpga library to get |
| 557 | * the fpga status |
| 558 | * @return Returns status, either success or error+reason |
| 559 | */ |
| 560 | enum pm_ret_status pm_fpga_get_status(unsigned int *value) |
| 561 | { |
| 562 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 563 | |
| 564 | /* Send request to the PMU */ |
| 565 | PM_PACK_PAYLOAD1(payload, PM_FPGA_GET_STATUS); |
Soren Brinkmann | d6c9e03 | 2016-09-22 11:35:47 -0700 | [diff] [blame] | 566 | return pm_ipi_send_sync(primary_proc, payload, value, 1); |
Nava kishore Manne | 68d460c | 2016-08-20 23:18:09 +0530 | [diff] [blame] | 567 | } |
Soren Brinkmann | cb36681 | 2016-09-22 12:21:11 -0700 | [diff] [blame] | 568 | |
| 569 | /** |
| 570 | * pm_get_chipid() - Read silicon ID registers |
| 571 | * @value Buffer for return values. Must be large enough |
| 572 | * to hold 8 bytes. |
| 573 | * |
| 574 | * @return Returns silicon ID registers |
| 575 | */ |
| 576 | enum pm_ret_status pm_get_chipid(uint32_t *value) |
| 577 | { |
| 578 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 579 | |
| 580 | /* Send request to the PMU */ |
| 581 | PM_PACK_PAYLOAD1(payload, PM_GET_CHIPID); |
| 582 | return pm_ipi_send_sync(primary_proc, payload, value, 2); |
| 583 | } |
Soren Brinkmann | 84f0af4 | 2016-09-30 14:24:25 -0700 | [diff] [blame] | 584 | |
| 585 | /** |
Siva Durga Prasad Paladugu | de93d98 | 2018-04-30 15:49:27 +0530 | [diff] [blame] | 586 | * pm_secure_rsaaes() - Load the secure images. |
| 587 | * |
| 588 | * This function provides access to the xilsecure library to load |
| 589 | * the authenticated, encrypted, and authenicated/encrypted images. |
| 590 | * |
| 591 | * address_low: lower 32-bit Linear memory space address |
| 592 | * |
| 593 | * address_high: higher 32-bit Linear memory space address |
| 594 | * |
| 595 | * size: Number of 32bit words |
| 596 | * |
| 597 | * @return Returns status, either success or error+reason |
| 598 | */ |
| 599 | enum pm_ret_status pm_secure_rsaaes(uint32_t address_low, |
| 600 | uint32_t address_high, |
| 601 | uint32_t size, |
| 602 | uint32_t flags) |
| 603 | { |
| 604 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 605 | |
| 606 | /* Send request to the PMU */ |
| 607 | PM_PACK_PAYLOAD5(payload, PM_SECURE_RSA_AES, address_high, address_low, |
| 608 | size, flags); |
| 609 | return pm_ipi_send_sync(primary_proc, payload, NULL, 0); |
| 610 | } |
| 611 | |
| 612 | /** |
Siva Durga Prasad Paladugu | 8bd905b | 2018-09-04 18:05:50 +0530 | [diff] [blame] | 613 | * pm_aes_engine() - Aes data blob encryption/decryption |
| 614 | * This function provides access to the xilsecure library to |
| 615 | * encrypt/decrypt data blobs. |
| 616 | * |
| 617 | * address_low: lower 32-bit address of the AesParams structure |
| 618 | * |
| 619 | * address_high: higher 32-bit address of the AesParams structure |
| 620 | * |
| 621 | * value: Returned output value |
| 622 | * |
| 623 | * @return Returns status, either success or error+reason |
| 624 | */ |
| 625 | enum pm_ret_status pm_aes_engine(uint32_t address_high, |
| 626 | uint32_t address_low, |
| 627 | uint32_t *value) |
| 628 | { |
| 629 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 630 | |
| 631 | /* Send request to the PMU */ |
| 632 | PM_PACK_PAYLOAD3(payload, PM_SECURE_AES, address_high, address_low); |
| 633 | return pm_ipi_send_sync(primary_proc, payload, value, 1); |
| 634 | } |
| 635 | |
| 636 | /** |
Rajan Vaja | 02d1842 | 2019-03-04 11:09:39 +0530 | [diff] [blame] | 637 | * pm_get_callbackdata() - Read from IPI response buffer |
| 638 | * @data - array of PAYLOAD_ARG_CNT elements |
| 639 | * |
| 640 | * Read value from ipi buffer response buffer. |
| 641 | */ |
| 642 | void pm_get_callbackdata(uint32_t *data, size_t count) |
| 643 | { |
| 644 | /* Return if interrupt is not from PMU */ |
| 645 | if (!pm_ipi_irq_status(primary_proc)) |
| 646 | return; |
| 647 | |
| 648 | pm_ipi_buff_read_callb(data, count); |
| 649 | pm_ipi_irq_clear(primary_proc); |
| 650 | } |
| 651 | |
| 652 | /** |
Rajan Vaja | 8368761 | 2018-01-17 02:39:20 -0800 | [diff] [blame] | 653 | * pm_pinctrl_request() - Request Pin from firmware |
| 654 | * @pin Pin number to request |
| 655 | * |
| 656 | * This function requests pin from firmware. |
| 657 | * |
| 658 | * @return Returns status, either success or error+reason. |
| 659 | */ |
| 660 | enum pm_ret_status pm_pinctrl_request(unsigned int pin) |
| 661 | { |
Mirela Simonovic | edefb04 | 2018-09-13 12:49:45 +0200 | [diff] [blame] | 662 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 663 | |
| 664 | /* Send request to the PMU */ |
| 665 | PM_PACK_PAYLOAD2(payload, PM_PINCTRL_REQUEST, pin); |
| 666 | return pm_ipi_send_sync(primary_proc, payload, NULL, 0); |
Rajan Vaja | 8368761 | 2018-01-17 02:39:20 -0800 | [diff] [blame] | 667 | } |
| 668 | |
| 669 | /** |
| 670 | * pm_pinctrl_release() - Release Pin from firmware |
| 671 | * @pin Pin number to release |
| 672 | * |
| 673 | * This function releases pin from firmware. |
| 674 | * |
| 675 | * @return Returns status, either success or error+reason. |
| 676 | */ |
| 677 | enum pm_ret_status pm_pinctrl_release(unsigned int pin) |
| 678 | { |
Mirela Simonovic | edefb04 | 2018-09-13 12:49:45 +0200 | [diff] [blame] | 679 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 680 | |
| 681 | /* Send request to the PMU */ |
| 682 | PM_PACK_PAYLOAD2(payload, PM_PINCTRL_RELEASE, pin); |
| 683 | return pm_ipi_send_sync(primary_proc, payload, NULL, 0); |
Rajan Vaja | 8368761 | 2018-01-17 02:39:20 -0800 | [diff] [blame] | 684 | } |
| 685 | |
| 686 | /** |
| 687 | * pm_pinctrl_get_function() - Read function id set for the given pin |
| 688 | * @pin Pin number |
Mirela Simonovic | 0304fa5 | 2018-09-13 12:49:46 +0200 | [diff] [blame] | 689 | * @fid ID of function currently set for given pin |
Rajan Vaja | 8368761 | 2018-01-17 02:39:20 -0800 | [diff] [blame] | 690 | * |
| 691 | * This function provides the function currently set for the given pin. |
| 692 | * |
| 693 | * @return Returns status, either success or error+reason |
| 694 | */ |
Mirela Simonovic | 0304fa5 | 2018-09-13 12:49:46 +0200 | [diff] [blame] | 695 | enum pm_ret_status pm_pinctrl_get_function(unsigned int pin, unsigned int *fid) |
Rajan Vaja | 8368761 | 2018-01-17 02:39:20 -0800 | [diff] [blame] | 696 | { |
Mirela Simonovic | 0304fa5 | 2018-09-13 12:49:46 +0200 | [diff] [blame] | 697 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 698 | |
| 699 | PM_PACK_PAYLOAD2(payload, PM_PINCTRL_GET_FUNCTION, pin); |
| 700 | return pm_ipi_send_sync(primary_proc, payload, fid, 1); |
Rajan Vaja | 8368761 | 2018-01-17 02:39:20 -0800 | [diff] [blame] | 701 | } |
| 702 | |
| 703 | /** |
| 704 | * pm_pinctrl_set_function() - Set function id set for the given pin |
| 705 | * @pin Pin number |
Mirela Simonovic | 0304fa5 | 2018-09-13 12:49:46 +0200 | [diff] [blame] | 706 | * @fid ID of function to set for given pin |
Rajan Vaja | 8368761 | 2018-01-17 02:39:20 -0800 | [diff] [blame] | 707 | * |
| 708 | * @return Returns status, either success or error+reason |
| 709 | */ |
Mirela Simonovic | 0304fa5 | 2018-09-13 12:49:46 +0200 | [diff] [blame] | 710 | enum pm_ret_status pm_pinctrl_set_function(unsigned int pin, unsigned int fid) |
Rajan Vaja | 8368761 | 2018-01-17 02:39:20 -0800 | [diff] [blame] | 711 | { |
Mirela Simonovic | 0304fa5 | 2018-09-13 12:49:46 +0200 | [diff] [blame] | 712 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 713 | |
| 714 | /* Send request to the PMU */ |
| 715 | PM_PACK_PAYLOAD3(payload, PM_PINCTRL_SET_FUNCTION, pin, fid); |
| 716 | return pm_ipi_send_sync(primary_proc, payload, NULL, 0); |
Rajan Vaja | 8368761 | 2018-01-17 02:39:20 -0800 | [diff] [blame] | 717 | } |
| 718 | |
| 719 | /** |
| 720 | * pm_pinctrl_get_config() - Read value of requested config param for given pin |
| 721 | * @pin Pin number |
| 722 | * @param Parameter values to be read |
| 723 | * @value Buffer for configuration Parameter value |
| 724 | * |
| 725 | * This function provides the configuration parameter value for the given pin. |
| 726 | * |
| 727 | * @return Returns status, either success or error+reason |
| 728 | */ |
| 729 | enum pm_ret_status pm_pinctrl_get_config(unsigned int pin, |
| 730 | unsigned int param, |
| 731 | unsigned int *value) |
| 732 | { |
Mirela Simonovic | 4dadd9c | 2020-11-22 23:31:14 -0800 | [diff] [blame] | 733 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 734 | |
| 735 | PM_PACK_PAYLOAD3(payload, PM_PINCTRL_CONFIG_PARAM_GET, pin, param); |
| 736 | return pm_ipi_send_sync(primary_proc, payload, value, 1); |
Rajan Vaja | 8368761 | 2018-01-17 02:39:20 -0800 | [diff] [blame] | 737 | } |
| 738 | |
| 739 | /** |
Mirela Simonovic | 4dadd9c | 2020-11-22 23:31:14 -0800 | [diff] [blame] | 740 | * pm_pinctrl_set_config() - Set value of requested config param for given pin |
Rajan Vaja | 8368761 | 2018-01-17 02:39:20 -0800 | [diff] [blame] | 741 | * @pin Pin number |
| 742 | * @param Parameter to set |
| 743 | * @value Parameter value to set |
| 744 | * |
Rajan Vaja | 8368761 | 2018-01-17 02:39:20 -0800 | [diff] [blame] | 745 | * @return Returns status, either success or error+reason |
| 746 | */ |
| 747 | enum pm_ret_status pm_pinctrl_set_config(unsigned int pin, |
| 748 | unsigned int param, |
| 749 | unsigned int value) |
| 750 | { |
Mirela Simonovic | 4dadd9c | 2020-11-22 23:31:14 -0800 | [diff] [blame] | 751 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 752 | |
| 753 | /* Send request to the PMU */ |
| 754 | PM_PACK_PAYLOAD4(payload, PM_PINCTRL_CONFIG_PARAM_SET, pin, param, |
| 755 | value); |
| 756 | return pm_ipi_send_sync(primary_proc, payload, NULL, 0); |
Rajan Vaja | 8368761 | 2018-01-17 02:39:20 -0800 | [diff] [blame] | 757 | } |
Rajan Vaja | 5529a01 | 2018-01-17 02:39:23 -0800 | [diff] [blame] | 758 | |
| 759 | /** |
| 760 | * pm_ioctl() - PM IOCTL API for device control and configs |
| 761 | * @node_id Node ID of the device |
| 762 | * @ioctl_id ID of the requested IOCTL |
| 763 | * @arg1 Argument 1 to requested IOCTL call |
| 764 | * @arg2 Argument 2 to requested IOCTL call |
| 765 | * @out Returned output value |
| 766 | * |
| 767 | * This function calls IOCTL to firmware for device control and configuration. |
| 768 | * |
| 769 | * @return Returns status, either success or error+reason |
| 770 | */ |
| 771 | enum pm_ret_status pm_ioctl(enum pm_node_id nid, |
| 772 | unsigned int ioctl_id, |
| 773 | unsigned int arg1, |
| 774 | unsigned int arg2, |
| 775 | unsigned int *value) |
| 776 | { |
| 777 | return pm_api_ioctl(nid, ioctl_id, arg1, arg2, value); |
| 778 | } |
Rajan Vaja | 3511613 | 2018-01-17 02:39:25 -0800 | [diff] [blame] | 779 | |
| 780 | /** |
Rajan Vaja | b34deca | 2019-03-20 01:13:21 +0530 | [diff] [blame] | 781 | * pm_clock_get_max_divisor - PM call to get max divisor |
| 782 | * @clock_id Clock ID |
| 783 | * @div_type Divisor ID (TYPE_DIV1 or TYPE_DIV2) |
| 784 | * @max_div Maximum supported divisor |
| 785 | * |
| 786 | * This function is used by master to get maximum supported value. |
| 787 | * |
| 788 | * Return: Returns status, either success or error+reason. |
| 789 | */ |
| 790 | static enum pm_ret_status pm_clock_get_max_divisor(unsigned int clock_id, |
| 791 | uint8_t div_type, |
| 792 | uint32_t *max_div) |
| 793 | { |
| 794 | return pm_api_clock_get_max_divisor(clock_id, div_type, max_div); |
| 795 | } |
| 796 | |
| 797 | /** |
Rajan Vaja | da95940 | 2018-07-20 03:16:27 -0700 | [diff] [blame] | 798 | * pm_clock_get_num_clocks - PM call to request number of clocks |
| 799 | * @nclockss: Number of clocks |
| 800 | * |
| 801 | * This function is used by master to get number of clocks. |
| 802 | * |
| 803 | * Return: Returns status, either success or error+reason. |
| 804 | */ |
| 805 | static enum pm_ret_status pm_clock_get_num_clocks(uint32_t *nclocks) |
| 806 | { |
| 807 | return pm_api_clock_get_num_clocks(nclocks); |
| 808 | } |
| 809 | |
| 810 | /** |
Rajan Vaja | 3511613 | 2018-01-17 02:39:25 -0800 | [diff] [blame] | 811 | * pm_clock_get_name() - PM call to request a clock's name |
| 812 | * @clock_id Clock ID |
| 813 | * @name Name of clock (max 16 bytes) |
| 814 | * |
| 815 | * This function is used by master to get nmae of clock specified |
| 816 | * by given clock ID. |
Rajan Vaja | 3511613 | 2018-01-17 02:39:25 -0800 | [diff] [blame] | 817 | */ |
Rajan Vaja | cd82568 | 2020-11-23 21:33:39 -0800 | [diff] [blame] | 818 | static void pm_clock_get_name(unsigned int clock_id, char *name) |
Rajan Vaja | 3511613 | 2018-01-17 02:39:25 -0800 | [diff] [blame] | 819 | { |
Rajan Vaja | cd82568 | 2020-11-23 21:33:39 -0800 | [diff] [blame] | 820 | pm_api_clock_get_name(clock_id, name); |
Rajan Vaja | 3511613 | 2018-01-17 02:39:25 -0800 | [diff] [blame] | 821 | } |
| 822 | |
| 823 | /** |
| 824 | * pm_clock_get_topology() - PM call to request a clock's topology |
| 825 | * @clock_id Clock ID |
| 826 | * @index Topology index for next toplogy node |
| 827 | * @topology Buffer to store nodes in topology and flags |
| 828 | * |
| 829 | * This function is used by master to get topology information for the |
| 830 | * clock specified by given clock ID. Each response would return 3 |
| 831 | * topology nodes. To get next nodes, caller needs to call this API with |
| 832 | * index of next node. Index starts from 0. |
| 833 | * |
| 834 | * @return Returns status, either success or error+reason |
| 835 | */ |
| 836 | static enum pm_ret_status pm_clock_get_topology(unsigned int clock_id, |
| 837 | unsigned int index, |
| 838 | uint32_t *topology) |
| 839 | { |
| 840 | return pm_api_clock_get_topology(clock_id, index, topology); |
| 841 | } |
| 842 | |
| 843 | /** |
| 844 | * pm_clock_get_fixedfactor_params() - PM call to request a clock's fixed factor |
| 845 | * parameters for fixed clock |
| 846 | * @clock_id Clock ID |
| 847 | * @mul Multiplication value |
| 848 | * @div Divisor value |
| 849 | * |
| 850 | * This function is used by master to get fixed factor parameers for the |
| 851 | * fixed clock. This API is application only for the fixed clock. |
| 852 | * |
| 853 | * @return Returns status, either success or error+reason |
| 854 | */ |
| 855 | static enum pm_ret_status pm_clock_get_fixedfactor_params(unsigned int clock_id, |
| 856 | uint32_t *mul, |
| 857 | uint32_t *div) |
| 858 | { |
| 859 | return pm_api_clock_get_fixedfactor_params(clock_id, mul, div); |
| 860 | } |
| 861 | |
| 862 | /** |
| 863 | * pm_clock_get_parents() - PM call to request a clock's first 3 parents |
| 864 | * @clock_id Clock ID |
| 865 | * @index Index of next parent |
| 866 | * @parents Parents of the given clock |
| 867 | * |
| 868 | * This function is used by master to get clock's parents information. |
| 869 | * This API will return 3 parents with a single response. To get other |
| 870 | * parents, master should call same API in loop with new parent index |
| 871 | * till error is returned. |
| 872 | * |
| 873 | * E.g First call should have index 0 which will return parents 0, 1 and |
| 874 | * 2. Next call, index should be 3 which will return parent 3,4 and 5 and |
| 875 | * so on. |
| 876 | * |
| 877 | * @return Returns status, either success or error+reason |
| 878 | */ |
| 879 | static enum pm_ret_status pm_clock_get_parents(unsigned int clock_id, |
| 880 | unsigned int index, |
| 881 | uint32_t *parents) |
| 882 | { |
| 883 | return pm_api_clock_get_parents(clock_id, index, parents); |
| 884 | } |
| 885 | |
| 886 | /** |
| 887 | * pm_clock_get_attributes() - PM call to request a clock's attributes |
| 888 | * @clock_id Clock ID |
| 889 | * @attr Clock attributes |
| 890 | * |
| 891 | * This function is used by master to get clock's attributes |
| 892 | * (e.g. valid, clock type, etc). |
| 893 | * |
| 894 | * @return Returns status, either success or error+reason |
| 895 | */ |
| 896 | static enum pm_ret_status pm_clock_get_attributes(unsigned int clock_id, |
| 897 | uint32_t *attr) |
| 898 | { |
| 899 | return pm_api_clock_get_attributes(clock_id, attr); |
| 900 | } |
| 901 | |
| 902 | /** |
Jolly Shah | a520980 | 2019-01-04 11:45:59 -0800 | [diff] [blame] | 903 | * pm_clock_gate() - Configure clock gate |
| 904 | * @clock_id Id of the clock to be configured |
| 905 | * @enable Flag 0=disable (gate the clock), !0=enable (activate the clock) |
| 906 | * |
| 907 | * @return Error if an argument is not valid or status as returned by the |
| 908 | * PM controller (PMU) |
| 909 | */ |
| 910 | static enum pm_ret_status pm_clock_gate(unsigned int clock_id, |
| 911 | unsigned char enable) |
| 912 | { |
| 913 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 914 | enum pm_ret_status status; |
| 915 | enum pm_api_id api_id; |
| 916 | |
| 917 | /* Check if clock ID is valid and return an error if it is not */ |
| 918 | status = pm_clock_id_is_valid(clock_id); |
| 919 | if (status != PM_RET_SUCCESS) |
| 920 | return status; |
| 921 | |
| 922 | if (enable) |
| 923 | api_id = PM_CLOCK_ENABLE; |
| 924 | else |
| 925 | api_id = PM_CLOCK_DISABLE; |
| 926 | |
| 927 | /* Send request to the PMU */ |
| 928 | PM_PACK_PAYLOAD2(payload, api_id, clock_id); |
Mirela Simonovic | 64514a7 | 2018-08-24 17:09:07 +0200 | [diff] [blame] | 929 | status = pm_ipi_send_sync(primary_proc, payload, NULL, 0); |
| 930 | |
| 931 | /* If action fails due to the lack of permissions filter the error */ |
| 932 | if (status == PM_RET_ERROR_ACCESS) |
| 933 | status = PM_RET_SUCCESS; |
| 934 | |
| 935 | return status; |
Jolly Shah | a520980 | 2019-01-04 11:45:59 -0800 | [diff] [blame] | 936 | } |
| 937 | |
| 938 | /** |
Rajan Vaja | 3511613 | 2018-01-17 02:39:25 -0800 | [diff] [blame] | 939 | * pm_clock_enable() - Enable the clock for given id |
| 940 | * @clock_id: Id of the clock to be enabled |
| 941 | * |
| 942 | * This function is used by master to enable the clock |
| 943 | * including peripherals and PLL clocks. |
| 944 | * |
Jolly Shah | a520980 | 2019-01-04 11:45:59 -0800 | [diff] [blame] | 945 | * @return: Error if an argument is not valid or status as returned by the |
| 946 | * pm_clock_gate |
Rajan Vaja | 3511613 | 2018-01-17 02:39:25 -0800 | [diff] [blame] | 947 | */ |
Rajan Vaja | 3511613 | 2018-01-17 02:39:25 -0800 | [diff] [blame] | 948 | enum pm_ret_status pm_clock_enable(unsigned int clock_id) |
| 949 | { |
Jolly Shah | a520980 | 2019-01-04 11:45:59 -0800 | [diff] [blame] | 950 | struct pm_pll *pll; |
| 951 | |
| 952 | /* First try to handle it as a PLL */ |
| 953 | pll = pm_clock_get_pll(clock_id); |
| 954 | if (pll) |
| 955 | return pm_clock_pll_enable(pll); |
| 956 | |
| 957 | /* It's an on-chip clock, PMU should configure clock's gate */ |
| 958 | return pm_clock_gate(clock_id, 1); |
Rajan Vaja | 3511613 | 2018-01-17 02:39:25 -0800 | [diff] [blame] | 959 | } |
| 960 | |
| 961 | /** |
| 962 | * pm_clock_disable - Disable the clock for given id |
| 963 | * @clock_id: Id of the clock to be disable |
| 964 | * |
| 965 | * This function is used by master to disable the clock |
| 966 | * including peripherals and PLL clocks. |
| 967 | * |
Jolly Shah | a9057a0 | 2019-01-02 12:54:40 -0800 | [diff] [blame] | 968 | * @return: Error if an argument is not valid or status as returned by the |
| 969 | * pm_clock_gate |
Rajan Vaja | 3511613 | 2018-01-17 02:39:25 -0800 | [diff] [blame] | 970 | */ |
Rajan Vaja | 3511613 | 2018-01-17 02:39:25 -0800 | [diff] [blame] | 971 | enum pm_ret_status pm_clock_disable(unsigned int clock_id) |
| 972 | { |
Jolly Shah | a9057a0 | 2019-01-02 12:54:40 -0800 | [diff] [blame] | 973 | struct pm_pll *pll; |
| 974 | |
| 975 | /* First try to handle it as a PLL */ |
| 976 | pll = pm_clock_get_pll(clock_id); |
| 977 | if (pll) |
| 978 | return pm_clock_pll_disable(pll); |
| 979 | |
| 980 | /* It's an on-chip clock, PMU should configure clock's gate */ |
| 981 | return pm_clock_gate(clock_id, 0); |
Rajan Vaja | 3511613 | 2018-01-17 02:39:25 -0800 | [diff] [blame] | 982 | } |
| 983 | |
| 984 | /** |
| 985 | * pm_clock_getstate - Get the clock state for given id |
| 986 | * @clock_id: Id of the clock to be queried |
| 987 | * @state: 1/0 (Enabled/Disabled) |
| 988 | * |
| 989 | * This function is used by master to get the state of clock |
| 990 | * including peripherals and PLL clocks. |
| 991 | * |
| 992 | * Return: Returns status, either success or error+reason. |
| 993 | */ |
| 994 | enum pm_ret_status pm_clock_getstate(unsigned int clock_id, |
| 995 | unsigned int *state) |
| 996 | { |
Jolly Shah | 99e8ac9 | 2019-01-02 12:55:41 -0800 | [diff] [blame] | 997 | struct pm_pll *pll; |
| 998 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 999 | enum pm_ret_status status; |
| 1000 | |
| 1001 | /* First try to handle it as a PLL */ |
| 1002 | pll = pm_clock_get_pll(clock_id); |
| 1003 | if (pll) |
| 1004 | return pm_clock_pll_get_state(pll, state); |
| 1005 | |
| 1006 | /* Check if clock ID is a valid on-chip clock */ |
| 1007 | status = pm_clock_id_is_valid(clock_id); |
| 1008 | if (status != PM_RET_SUCCESS) |
| 1009 | return status; |
| 1010 | |
| 1011 | /* Send request to the PMU */ |
| 1012 | PM_PACK_PAYLOAD2(payload, PM_CLOCK_GETSTATE, clock_id); |
| 1013 | return pm_ipi_send_sync(primary_proc, payload, state, 1); |
Rajan Vaja | 3511613 | 2018-01-17 02:39:25 -0800 | [diff] [blame] | 1014 | } |
| 1015 | |
| 1016 | /** |
| 1017 | * pm_clock_setdivider - Set the clock divider for given id |
| 1018 | * @clock_id: Id of the clock |
| 1019 | * @divider: divider value |
| 1020 | * |
| 1021 | * This function is used by master to set divider for any clock |
| 1022 | * to achieve desired rate. |
| 1023 | * |
| 1024 | * Return: Returns status, either success or error+reason. |
| 1025 | */ |
| 1026 | enum pm_ret_status pm_clock_setdivider(unsigned int clock_id, |
| 1027 | unsigned int divider) |
| 1028 | { |
Jolly Shah | 8b4c4c7 | 2019-01-04 11:49:46 -0800 | [diff] [blame] | 1029 | enum pm_ret_status status; |
| 1030 | enum pm_node_id nid; |
| 1031 | enum pm_clock_div_id div_id; |
| 1032 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 1033 | const uint32_t div0 = 0xFFFF0000; |
| 1034 | const uint32_t div1 = 0x0000FFFF; |
| 1035 | uint32_t val; |
| 1036 | |
| 1037 | /* Get PLL node ID using PLL clock ID */ |
| 1038 | status = pm_clock_get_pll_node_id(clock_id, &nid); |
| 1039 | if (status == PM_RET_SUCCESS) |
| 1040 | return pm_pll_set_parameter(nid, PM_PLL_PARAM_FBDIV, divider); |
| 1041 | |
| 1042 | /* Check if clock ID is a valid on-chip clock */ |
| 1043 | status = pm_clock_id_is_valid(clock_id); |
| 1044 | if (status != PM_RET_SUCCESS) |
| 1045 | return status; |
| 1046 | |
| 1047 | if (div0 == (divider & div0)) { |
| 1048 | div_id = PM_CLOCK_DIV0_ID; |
| 1049 | val = divider & ~div0; |
| 1050 | } else if (div1 == (divider & div1)) { |
| 1051 | div_id = PM_CLOCK_DIV1_ID; |
| 1052 | val = (divider & ~div1) >> 16; |
| 1053 | } else { |
| 1054 | return PM_RET_ERROR_ARGS; |
| 1055 | } |
| 1056 | |
| 1057 | /* Send request to the PMU */ |
| 1058 | PM_PACK_PAYLOAD4(payload, PM_CLOCK_SETDIVIDER, clock_id, div_id, val); |
| 1059 | return pm_ipi_send_sync(primary_proc, payload, NULL, 0); |
Rajan Vaja | 3511613 | 2018-01-17 02:39:25 -0800 | [diff] [blame] | 1060 | } |
| 1061 | |
| 1062 | /** |
| 1063 | * pm_clock_getdivider - Get the clock divider for given id |
| 1064 | * @clock_id: Id of the clock |
| 1065 | * @divider: divider value |
| 1066 | * |
| 1067 | * This function is used by master to get divider values |
| 1068 | * for any clock. |
| 1069 | * |
| 1070 | * Return: Returns status, either success or error+reason. |
| 1071 | */ |
| 1072 | enum pm_ret_status pm_clock_getdivider(unsigned int clock_id, |
| 1073 | unsigned int *divider) |
| 1074 | { |
Jolly Shah | 4dd1176 | 2019-01-04 11:53:37 -0800 | [diff] [blame] | 1075 | enum pm_ret_status status; |
| 1076 | enum pm_node_id nid; |
| 1077 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 1078 | uint32_t val; |
| 1079 | |
| 1080 | /* Get PLL node ID using PLL clock ID */ |
| 1081 | status = pm_clock_get_pll_node_id(clock_id, &nid); |
| 1082 | if (status == PM_RET_SUCCESS) |
| 1083 | return pm_pll_get_parameter(nid, PM_PLL_PARAM_FBDIV, divider); |
| 1084 | |
| 1085 | /* Check if clock ID is a valid on-chip clock */ |
| 1086 | status = pm_clock_id_is_valid(clock_id); |
| 1087 | if (status != PM_RET_SUCCESS) |
| 1088 | return status; |
| 1089 | |
| 1090 | if (pm_clock_has_div(clock_id, PM_CLOCK_DIV0_ID)) { |
| 1091 | /* Send request to the PMU to get div0 */ |
| 1092 | PM_PACK_PAYLOAD3(payload, PM_CLOCK_GETDIVIDER, clock_id, |
| 1093 | PM_CLOCK_DIV0_ID); |
| 1094 | status = pm_ipi_send_sync(primary_proc, payload, &val, 1); |
| 1095 | if (status != PM_RET_SUCCESS) |
| 1096 | return status; |
| 1097 | *divider = val; |
| 1098 | } |
| 1099 | |
| 1100 | if (pm_clock_has_div(clock_id, PM_CLOCK_DIV1_ID)) { |
| 1101 | /* Send request to the PMU to get div1 */ |
| 1102 | PM_PACK_PAYLOAD3(payload, PM_CLOCK_GETDIVIDER, clock_id, |
| 1103 | PM_CLOCK_DIV1_ID); |
| 1104 | status = pm_ipi_send_sync(primary_proc, payload, &val, 1); |
| 1105 | if (status != PM_RET_SUCCESS) |
| 1106 | return status; |
| 1107 | *divider |= val << 16; |
| 1108 | } |
| 1109 | |
| 1110 | return status; |
Rajan Vaja | 3511613 | 2018-01-17 02:39:25 -0800 | [diff] [blame] | 1111 | } |
| 1112 | |
| 1113 | /** |
| 1114 | * pm_clock_setrate - Set the clock rate for given id |
| 1115 | * @clock_id: Id of the clock |
| 1116 | * @rate: rate value in hz |
| 1117 | * |
| 1118 | * This function is used by master to set rate for any clock. |
| 1119 | * |
| 1120 | * Return: Returns status, either success or error+reason. |
| 1121 | */ |
| 1122 | enum pm_ret_status pm_clock_setrate(unsigned int clock_id, |
| 1123 | uint64_t rate) |
| 1124 | { |
Jolly Shah | c139181 | 2019-01-02 13:39:30 -0800 | [diff] [blame] | 1125 | return PM_RET_ERROR_NOTSUPPORTED; |
Rajan Vaja | 3511613 | 2018-01-17 02:39:25 -0800 | [diff] [blame] | 1126 | } |
| 1127 | |
| 1128 | /** |
| 1129 | * pm_clock_getrate - Get the clock rate for given id |
| 1130 | * @clock_id: Id of the clock |
| 1131 | * @rate: rate value in hz |
| 1132 | * |
| 1133 | * This function is used by master to get rate |
| 1134 | * for any clock. |
| 1135 | * |
| 1136 | * Return: Returns status, either success or error+reason. |
| 1137 | */ |
| 1138 | enum pm_ret_status pm_clock_getrate(unsigned int clock_id, |
| 1139 | uint64_t *rate) |
| 1140 | { |
Jolly Shah | c139181 | 2019-01-02 13:39:30 -0800 | [diff] [blame] | 1141 | return PM_RET_ERROR_NOTSUPPORTED; |
Rajan Vaja | 3511613 | 2018-01-17 02:39:25 -0800 | [diff] [blame] | 1142 | } |
| 1143 | |
| 1144 | /** |
| 1145 | * pm_clock_setparent - Set the clock parent for given id |
| 1146 | * @clock_id: Id of the clock |
Jolly Shah | 407fc0a | 2019-01-04 11:57:40 -0800 | [diff] [blame] | 1147 | * @parent_index: Index of the parent clock into clock's parents array |
Rajan Vaja | 3511613 | 2018-01-17 02:39:25 -0800 | [diff] [blame] | 1148 | * |
| 1149 | * This function is used by master to set parent for any clock. |
| 1150 | * |
| 1151 | * Return: Returns status, either success or error+reason. |
| 1152 | */ |
| 1153 | enum pm_ret_status pm_clock_setparent(unsigned int clock_id, |
Jolly Shah | 407fc0a | 2019-01-04 11:57:40 -0800 | [diff] [blame] | 1154 | unsigned int parent_index) |
Rajan Vaja | 3511613 | 2018-01-17 02:39:25 -0800 | [diff] [blame] | 1155 | { |
Jolly Shah | 407fc0a | 2019-01-04 11:57:40 -0800 | [diff] [blame] | 1156 | struct pm_pll *pll; |
| 1157 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 1158 | enum pm_ret_status status; |
| 1159 | |
| 1160 | /* First try to handle it as a PLL */ |
| 1161 | pll = pm_clock_get_pll_by_related_clk(clock_id); |
| 1162 | if (pll) |
| 1163 | return pm_clock_pll_set_parent(pll, clock_id, parent_index); |
| 1164 | |
| 1165 | /* Check if clock ID is a valid on-chip clock */ |
| 1166 | status = pm_clock_id_is_valid(clock_id); |
| 1167 | if (status != PM_RET_SUCCESS) |
| 1168 | return status; |
| 1169 | |
| 1170 | /* Send request to the PMU */ |
| 1171 | PM_PACK_PAYLOAD3(payload, PM_CLOCK_SETPARENT, clock_id, parent_index); |
| 1172 | return pm_ipi_send_sync(primary_proc, payload, NULL, 0); |
Rajan Vaja | 3511613 | 2018-01-17 02:39:25 -0800 | [diff] [blame] | 1173 | } |
| 1174 | |
| 1175 | /** |
| 1176 | * pm_clock_getparent - Get the clock parent for given id |
| 1177 | * @clock_id: Id of the clock |
Jolly Shah | 7c8e79c | 2019-01-02 13:44:25 -0800 | [diff] [blame] | 1178 | * @parent_index: parent index |
Rajan Vaja | 3511613 | 2018-01-17 02:39:25 -0800 | [diff] [blame] | 1179 | * |
| 1180 | * This function is used by master to get parent index |
| 1181 | * for any clock. |
| 1182 | * |
| 1183 | * Return: Returns status, either success or error+reason. |
| 1184 | */ |
| 1185 | enum pm_ret_status pm_clock_getparent(unsigned int clock_id, |
Jolly Shah | 7c8e79c | 2019-01-02 13:44:25 -0800 | [diff] [blame] | 1186 | unsigned int *parent_index) |
Rajan Vaja | 3511613 | 2018-01-17 02:39:25 -0800 | [diff] [blame] | 1187 | { |
Jolly Shah | 7c8e79c | 2019-01-02 13:44:25 -0800 | [diff] [blame] | 1188 | struct pm_pll *pll; |
| 1189 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 1190 | enum pm_ret_status status; |
| 1191 | |
| 1192 | /* First try to handle it as a PLL */ |
| 1193 | pll = pm_clock_get_pll_by_related_clk(clock_id); |
| 1194 | if (pll) |
| 1195 | return pm_clock_pll_get_parent(pll, clock_id, parent_index); |
| 1196 | |
| 1197 | /* Check if clock ID is a valid on-chip clock */ |
| 1198 | status = pm_clock_id_is_valid(clock_id); |
| 1199 | if (status != PM_RET_SUCCESS) |
| 1200 | return status; |
| 1201 | |
| 1202 | /* Send request to the PMU */ |
| 1203 | PM_PACK_PAYLOAD2(payload, PM_CLOCK_GETPARENT, clock_id); |
| 1204 | return pm_ipi_send_sync(primary_proc, payload, parent_index, 1); |
Rajan Vaja | 3511613 | 2018-01-17 02:39:25 -0800 | [diff] [blame] | 1205 | } |
| 1206 | |
| 1207 | /** |
Rajan Vaja | d5dd836 | 2018-01-30 04:16:31 -0800 | [diff] [blame] | 1208 | * pm_pinctrl_get_num_pins - PM call to request number of pins |
| 1209 | * @npins: Number of pins |
| 1210 | * |
| 1211 | * This function is used by master to get number of pins |
| 1212 | * |
| 1213 | * Return: Returns status, either success or error+reason. |
| 1214 | */ |
| 1215 | static enum pm_ret_status pm_pinctrl_get_num_pins(uint32_t *npins) |
| 1216 | { |
| 1217 | return pm_api_pinctrl_get_num_pins(npins); |
| 1218 | } |
| 1219 | |
| 1220 | /** |
| 1221 | * pm_pinctrl_get_num_functions - PM call to request number of functions |
| 1222 | * @nfuncs: Number of functions |
| 1223 | * |
| 1224 | * This function is used by master to get number of functions |
| 1225 | * |
| 1226 | * Return: Returns status, either success or error+reason. |
| 1227 | */ |
| 1228 | static enum pm_ret_status pm_pinctrl_get_num_functions(uint32_t *nfuncs) |
| 1229 | { |
| 1230 | return pm_api_pinctrl_get_num_functions(nfuncs); |
| 1231 | } |
| 1232 | |
| 1233 | /** |
| 1234 | * pm_pinctrl_get_num_function_groups - PM call to request number of |
| 1235 | * function groups |
| 1236 | * @fid: Id of function |
| 1237 | * @ngroups: Number of function groups |
| 1238 | * |
| 1239 | * This function is used by master to get number of function groups specified |
| 1240 | * by given function Id |
| 1241 | * |
| 1242 | * Return: Returns status, either success or error+reason. |
| 1243 | */ |
| 1244 | static enum pm_ret_status pm_pinctrl_get_num_function_groups(unsigned int fid, |
| 1245 | uint32_t *ngroups) |
| 1246 | { |
| 1247 | return pm_api_pinctrl_get_num_func_groups(fid, ngroups); |
| 1248 | } |
| 1249 | |
| 1250 | /** |
| 1251 | * pm_pinctrl_get_function_name - PM call to request function name |
| 1252 | * @fid: Id of function |
| 1253 | * @name: Name of function |
| 1254 | * |
| 1255 | * This function is used by master to get name of function specified |
| 1256 | * by given function Id |
Rajan Vaja | d5dd836 | 2018-01-30 04:16:31 -0800 | [diff] [blame] | 1257 | */ |
Rajan Vaja | cd82568 | 2020-11-23 21:33:39 -0800 | [diff] [blame] | 1258 | static void pm_pinctrl_get_function_name(unsigned int fid, char *name) |
Rajan Vaja | d5dd836 | 2018-01-30 04:16:31 -0800 | [diff] [blame] | 1259 | { |
Rajan Vaja | cd82568 | 2020-11-23 21:33:39 -0800 | [diff] [blame] | 1260 | pm_api_pinctrl_get_function_name(fid, name); |
Rajan Vaja | d5dd836 | 2018-01-30 04:16:31 -0800 | [diff] [blame] | 1261 | } |
| 1262 | |
| 1263 | /** |
| 1264 | * pm_pinctrl_get_function_groups - PM call to request function groups |
| 1265 | * @fid: Id of function |
| 1266 | * @index: Index of next function groups |
| 1267 | * @groups: Function groups |
| 1268 | * |
| 1269 | * This function is used by master to get function groups specified |
| 1270 | * by given function Id. This API will return 6 function groups with |
| 1271 | * a single response. To get other function groups, master should call |
| 1272 | * same API in loop with new function groups index till error is returned. |
| 1273 | * |
| 1274 | * E.g First call should have index 0 which will return function groups |
| 1275 | * 0, 1, 2, 3, 4 and 5. Next call, index should be 6 which will return |
| 1276 | * function groups 6, 7, 8, 9, 10 and 11 and so on. |
| 1277 | * |
| 1278 | * Return: Returns status, either success or error+reason. |
| 1279 | */ |
| 1280 | static enum pm_ret_status pm_pinctrl_get_function_groups(unsigned int fid, |
| 1281 | unsigned int index, |
| 1282 | uint16_t *groups) |
| 1283 | { |
| 1284 | return pm_api_pinctrl_get_function_groups(fid, index, groups); |
| 1285 | } |
| 1286 | |
| 1287 | /** |
| 1288 | * pm_pinctrl_get_pin_groups - PM call to request pin groups |
| 1289 | * @pin_id: Id of pin |
| 1290 | * @index: Index of next pin groups |
| 1291 | * @groups: pin groups |
| 1292 | * |
| 1293 | * This function is used by master to get pin groups specified |
| 1294 | * by given pin Id. This API will return 6 pin groups with |
| 1295 | * a single response. To get other pin groups, master should call |
| 1296 | * same API in loop with new pin groups index till error is returned. |
| 1297 | * |
| 1298 | * E.g First call should have index 0 which will return pin groups |
| 1299 | * 0, 1, 2, 3, 4 and 5. Next call, index should be 6 which will return |
| 1300 | * pin groups 6, 7, 8, 9, 10 and 11 and so on. |
| 1301 | * |
| 1302 | * Return: Returns status, either success or error+reason. |
| 1303 | */ |
| 1304 | static enum pm_ret_status pm_pinctrl_get_pin_groups(unsigned int pin_id, |
| 1305 | unsigned int index, |
| 1306 | uint16_t *groups) |
| 1307 | { |
| 1308 | return pm_api_pinctrl_get_pin_groups(pin_id, index, groups); |
| 1309 | } |
| 1310 | |
| 1311 | /** |
Rajan Vaja | 3511613 | 2018-01-17 02:39:25 -0800 | [diff] [blame] | 1312 | * pm_query_data() - PM API for querying firmware data |
| 1313 | * @arg1 Argument 1 to requested IOCTL call |
| 1314 | * @arg2 Argument 2 to requested IOCTL call |
| 1315 | * @arg3 Argument 3 to requested IOCTL call |
| 1316 | * @arg4 Argument 4 to requested IOCTL call |
| 1317 | * @data Returned output data |
| 1318 | * |
| 1319 | * This function returns requested data. |
Rajan Vaja | 3511613 | 2018-01-17 02:39:25 -0800 | [diff] [blame] | 1320 | */ |
Rajan Vaja | cd82568 | 2020-11-23 21:33:39 -0800 | [diff] [blame] | 1321 | void pm_query_data(enum pm_query_id qid, unsigned int arg1, unsigned int arg2, |
| 1322 | unsigned int arg3, unsigned int *data) |
Rajan Vaja | 3511613 | 2018-01-17 02:39:25 -0800 | [diff] [blame] | 1323 | { |
Rajan Vaja | 3511613 | 2018-01-17 02:39:25 -0800 | [diff] [blame] | 1324 | switch (qid) { |
| 1325 | case PM_QID_CLOCK_GET_NAME: |
Rajan Vaja | cd82568 | 2020-11-23 21:33:39 -0800 | [diff] [blame] | 1326 | pm_clock_get_name(arg1, (char *)data); |
Rajan Vaja | 3511613 | 2018-01-17 02:39:25 -0800 | [diff] [blame] | 1327 | break; |
| 1328 | case PM_QID_CLOCK_GET_TOPOLOGY: |
Rajan Vaja | cd82568 | 2020-11-23 21:33:39 -0800 | [diff] [blame] | 1329 | data[0] = pm_clock_get_topology(arg1, arg2, &data[1]); |
Rajan Vaja | 3511613 | 2018-01-17 02:39:25 -0800 | [diff] [blame] | 1330 | break; |
| 1331 | case PM_QID_CLOCK_GET_FIXEDFACTOR_PARAMS: |
Rajan Vaja | cd82568 | 2020-11-23 21:33:39 -0800 | [diff] [blame] | 1332 | data[0] = pm_clock_get_fixedfactor_params(arg1, &data[1], |
| 1333 | &data[2]); |
Rajan Vaja | 3511613 | 2018-01-17 02:39:25 -0800 | [diff] [blame] | 1334 | break; |
| 1335 | case PM_QID_CLOCK_GET_PARENTS: |
Rajan Vaja | cd82568 | 2020-11-23 21:33:39 -0800 | [diff] [blame] | 1336 | data[0] = pm_clock_get_parents(arg1, arg2, &data[1]); |
Rajan Vaja | 3511613 | 2018-01-17 02:39:25 -0800 | [diff] [blame] | 1337 | break; |
| 1338 | case PM_QID_CLOCK_GET_ATTRIBUTES: |
Rajan Vaja | cd82568 | 2020-11-23 21:33:39 -0800 | [diff] [blame] | 1339 | data[0] = pm_clock_get_attributes(arg1, &data[1]); |
Rajan Vaja | 3511613 | 2018-01-17 02:39:25 -0800 | [diff] [blame] | 1340 | break; |
Rajan Vaja | d5dd836 | 2018-01-30 04:16:31 -0800 | [diff] [blame] | 1341 | case PM_QID_PINCTRL_GET_NUM_PINS: |
Rajan Vaja | cd82568 | 2020-11-23 21:33:39 -0800 | [diff] [blame] | 1342 | data[0] = pm_pinctrl_get_num_pins(&data[1]); |
Rajan Vaja | d5dd836 | 2018-01-30 04:16:31 -0800 | [diff] [blame] | 1343 | break; |
| 1344 | case PM_QID_PINCTRL_GET_NUM_FUNCTIONS: |
Rajan Vaja | cd82568 | 2020-11-23 21:33:39 -0800 | [diff] [blame] | 1345 | data[0] = pm_pinctrl_get_num_functions(&data[1]); |
Rajan Vaja | d5dd836 | 2018-01-30 04:16:31 -0800 | [diff] [blame] | 1346 | break; |
| 1347 | case PM_QID_PINCTRL_GET_NUM_FUNCTION_GROUPS: |
Rajan Vaja | cd82568 | 2020-11-23 21:33:39 -0800 | [diff] [blame] | 1348 | data[0] = pm_pinctrl_get_num_function_groups(arg1, &data[1]); |
Rajan Vaja | d5dd836 | 2018-01-30 04:16:31 -0800 | [diff] [blame] | 1349 | break; |
| 1350 | case PM_QID_PINCTRL_GET_FUNCTION_NAME: |
Rajan Vaja | cd82568 | 2020-11-23 21:33:39 -0800 | [diff] [blame] | 1351 | pm_pinctrl_get_function_name(arg1, (char *)data); |
Rajan Vaja | d5dd836 | 2018-01-30 04:16:31 -0800 | [diff] [blame] | 1352 | break; |
| 1353 | case PM_QID_PINCTRL_GET_FUNCTION_GROUPS: |
Rajan Vaja | cd82568 | 2020-11-23 21:33:39 -0800 | [diff] [blame] | 1354 | data[0] = pm_pinctrl_get_function_groups(arg1, arg2, |
| 1355 | (uint16_t *)&data[1]); |
Rajan Vaja | d5dd836 | 2018-01-30 04:16:31 -0800 | [diff] [blame] | 1356 | break; |
| 1357 | case PM_QID_PINCTRL_GET_PIN_GROUPS: |
Rajan Vaja | cd82568 | 2020-11-23 21:33:39 -0800 | [diff] [blame] | 1358 | data[0] = pm_pinctrl_get_pin_groups(arg1, arg2, |
| 1359 | (uint16_t *)&data[1]); |
Rajan Vaja | d5dd836 | 2018-01-30 04:16:31 -0800 | [diff] [blame] | 1360 | break; |
Rajan Vaja | da95940 | 2018-07-20 03:16:27 -0700 | [diff] [blame] | 1361 | case PM_QID_CLOCK_GET_NUM_CLOCKS: |
Rajan Vaja | cd82568 | 2020-11-23 21:33:39 -0800 | [diff] [blame] | 1362 | data[0] = pm_clock_get_num_clocks(&data[1]); |
Rajan Vaja | da95940 | 2018-07-20 03:16:27 -0700 | [diff] [blame] | 1363 | break; |
Rajan Vaja | b34deca | 2019-03-20 01:13:21 +0530 | [diff] [blame] | 1364 | |
| 1365 | case PM_QID_CLOCK_GET_MAX_DIVISOR: |
Rajan Vaja | cd82568 | 2020-11-23 21:33:39 -0800 | [diff] [blame] | 1366 | data[0] = pm_clock_get_max_divisor(arg1, arg2, &data[1]); |
Rajan Vaja | b34deca | 2019-03-20 01:13:21 +0530 | [diff] [blame] | 1367 | break; |
Rajan Vaja | 3511613 | 2018-01-17 02:39:25 -0800 | [diff] [blame] | 1368 | default: |
Rajan Vaja | cd82568 | 2020-11-23 21:33:39 -0800 | [diff] [blame] | 1369 | data[0] = PM_RET_ERROR_ARGS; |
Rajan Vaja | 3511613 | 2018-01-17 02:39:25 -0800 | [diff] [blame] | 1370 | WARN("Unimplemented query service call: 0x%x\n", qid); |
| 1371 | } |
Rajan Vaja | 3511613 | 2018-01-17 02:39:25 -0800 | [diff] [blame] | 1372 | } |
Siva Durga Prasad Paladugu | f3994cc | 2018-05-01 11:12:55 +0530 | [diff] [blame] | 1373 | |
| 1374 | enum pm_ret_status pm_sha_hash(uint32_t address_high, |
| 1375 | uint32_t address_low, |
| 1376 | uint32_t size, |
| 1377 | uint32_t flags) |
| 1378 | { |
| 1379 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 1380 | |
| 1381 | /* Send request to the PMU */ |
| 1382 | PM_PACK_PAYLOAD5(payload, PM_SECURE_SHA, address_high, address_low, |
| 1383 | size, flags); |
| 1384 | return pm_ipi_send_sync(primary_proc, payload, NULL, 0); |
| 1385 | } |
| 1386 | |
| 1387 | enum pm_ret_status pm_rsa_core(uint32_t address_high, |
| 1388 | uint32_t address_low, |
| 1389 | uint32_t size, |
| 1390 | uint32_t flags) |
| 1391 | { |
| 1392 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 1393 | |
| 1394 | /* Send request to the PMU */ |
| 1395 | PM_PACK_PAYLOAD5(payload, PM_SECURE_RSA, address_high, address_low, |
| 1396 | size, flags); |
| 1397 | return pm_ipi_send_sync(primary_proc, payload, NULL, 0); |
| 1398 | } |
Siva Durga Prasad Paladugu | a4ed4b2 | 2018-04-30 20:06:58 +0530 | [diff] [blame] | 1399 | |
| 1400 | enum pm_ret_status pm_secure_image(uint32_t address_low, |
| 1401 | uint32_t address_high, |
| 1402 | uint32_t key_lo, |
| 1403 | uint32_t key_hi, |
| 1404 | uint32_t *value) |
| 1405 | { |
| 1406 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 1407 | |
| 1408 | /* Send request to the PMU */ |
| 1409 | PM_PACK_PAYLOAD5(payload, PM_SECURE_IMAGE, address_high, address_low, |
| 1410 | key_hi, key_lo); |
| 1411 | return pm_ipi_send_sync(primary_proc, payload, value, 2); |
| 1412 | } |
Siva Durga Prasad Paladugu | 7c6516a | 2018-09-04 17:41:34 +0530 | [diff] [blame] | 1413 | |
| 1414 | /** |
| 1415 | * pm_fpga_read - Perform the fpga configuration readback |
| 1416 | * |
| 1417 | * @reg_numframes: Configuration register offset (or) Number of frames to read |
| 1418 | * @address_low: lower 32-bit Linear memory space address |
| 1419 | * @address_high: higher 32-bit Linear memory space address |
| 1420 | * @readback_type: Type of fpga readback operation |
| 1421 | * 0 -- Configuration Register readback |
| 1422 | * 1 -- Configuration Data readback |
| 1423 | * @value: Value to read |
| 1424 | * |
| 1425 | * This function provides access to the xilfpga library to read |
| 1426 | * the PL configuration. |
| 1427 | * |
| 1428 | * Return: Returns status, either success or error+reason. |
| 1429 | */ |
| 1430 | enum pm_ret_status pm_fpga_read(uint32_t reg_numframes, |
| 1431 | uint32_t address_low, |
| 1432 | uint32_t address_high, |
| 1433 | uint32_t readback_type, |
| 1434 | uint32_t *value) |
| 1435 | { |
| 1436 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 1437 | |
| 1438 | /* Send request to the PMU */ |
| 1439 | PM_PACK_PAYLOAD5(payload, PM_FPGA_READ, reg_numframes, address_low, |
| 1440 | address_high, readback_type); |
| 1441 | return pm_ipi_send_sync(primary_proc, payload, value, 1); |
| 1442 | } |
Jolly Shah | a7cc5ee | 2019-01-02 12:27:00 -0800 | [diff] [blame] | 1443 | |
| 1444 | /* |
| 1445 | * pm_pll_set_parameter() - Set the PLL parameter value |
| 1446 | * @nid Node id of the target PLL |
| 1447 | * @param_id ID of the PLL parameter |
| 1448 | * @value Parameter value to be set |
| 1449 | * |
| 1450 | * Setting the parameter will have physical effect once the PLL mode is set to |
| 1451 | * integer or fractional. |
| 1452 | * |
| 1453 | * @return Error if an argument is not valid or status as returned by the |
| 1454 | * PM controller (PMU) |
| 1455 | */ |
| 1456 | enum pm_ret_status pm_pll_set_parameter(enum pm_node_id nid, |
| 1457 | enum pm_pll_param param_id, |
| 1458 | unsigned int value) |
| 1459 | { |
| 1460 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 1461 | |
| 1462 | /* Check if given node ID is a PLL node */ |
| 1463 | if (nid < NODE_APLL || nid > NODE_IOPLL) |
| 1464 | return PM_RET_ERROR_ARGS; |
| 1465 | |
| 1466 | /* Check if parameter ID is valid and return an error if it's not */ |
| 1467 | if (param_id >= PM_PLL_PARAM_MAX) |
| 1468 | return PM_RET_ERROR_ARGS; |
| 1469 | |
| 1470 | /* Send request to the PMU */ |
| 1471 | PM_PACK_PAYLOAD4(payload, PM_PLL_SET_PARAMETER, nid, param_id, value); |
| 1472 | return pm_ipi_send_sync(primary_proc, payload, NULL, 0); |
| 1473 | } |
Jolly Shah | cb2f45d | 2019-01-04 11:28:38 -0800 | [diff] [blame] | 1474 | |
| 1475 | /** |
| 1476 | * pm_pll_get_parameter() - Get the PLL parameter value |
| 1477 | * @nid Node id of the target PLL |
| 1478 | * @param_id ID of the PLL parameter |
| 1479 | * @value Location to store the parameter value |
| 1480 | * |
| 1481 | * @return Error if an argument is not valid or status as returned by the |
| 1482 | * PM controller (PMU) |
| 1483 | */ |
| 1484 | enum pm_ret_status pm_pll_get_parameter(enum pm_node_id nid, |
| 1485 | enum pm_pll_param param_id, |
| 1486 | unsigned int *value) |
| 1487 | { |
| 1488 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 1489 | |
| 1490 | /* Check if given node ID is a PLL node */ |
| 1491 | if (nid < NODE_APLL || nid > NODE_IOPLL) |
| 1492 | return PM_RET_ERROR_ARGS; |
| 1493 | |
| 1494 | /* Check if parameter ID is valid and return an error if it's not */ |
| 1495 | if (param_id >= PM_PLL_PARAM_MAX) |
| 1496 | return PM_RET_ERROR_ARGS; |
| 1497 | |
| 1498 | /* Send request to the PMU */ |
| 1499 | PM_PACK_PAYLOAD3(payload, PM_PLL_GET_PARAMETER, nid, param_id); |
| 1500 | return pm_ipi_send_sync(primary_proc, payload, value, 1); |
| 1501 | } |
Jolly Shah | 1f0d585 | 2019-01-04 11:32:31 -0800 | [diff] [blame] | 1502 | |
| 1503 | /** |
| 1504 | * pm_pll_set_mode() - Set the PLL mode |
| 1505 | * @nid Node id of the target PLL |
| 1506 | * @mode PLL mode to be set |
| 1507 | * |
| 1508 | * If reset mode is set the PM controller will first bypass the PLL and then |
| 1509 | * assert the reset. If integer or fractional mode is set the PM controller will |
| 1510 | * ensure that the complete PLL programming sequence is satisfied. After this |
| 1511 | * function returns success the PLL is locked and its bypass is deasserted. |
| 1512 | * |
| 1513 | * @return Error if an argument is not valid or status as returned by the |
| 1514 | * PM controller (PMU) |
| 1515 | */ |
| 1516 | enum pm_ret_status pm_pll_set_mode(enum pm_node_id nid, enum pm_pll_mode mode) |
| 1517 | { |
| 1518 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 1519 | |
| 1520 | /* Check if given node ID is a PLL node */ |
| 1521 | if (nid < NODE_APLL || nid > NODE_IOPLL) |
| 1522 | return PM_RET_ERROR_ARGS; |
| 1523 | |
| 1524 | /* Check if PLL mode is valid */ |
| 1525 | if (mode >= PM_PLL_MODE_MAX) |
| 1526 | return PM_RET_ERROR_ARGS; |
| 1527 | |
| 1528 | /* Send request to the PMU */ |
| 1529 | PM_PACK_PAYLOAD3(payload, PM_PLL_SET_MODE, nid, mode); |
| 1530 | return pm_ipi_send_sync(primary_proc, payload, NULL, 0); |
| 1531 | } |
Jolly Shah | 141421e | 2019-01-04 11:35:48 -0800 | [diff] [blame] | 1532 | |
| 1533 | /** |
| 1534 | * pm_pll_get_mode() - Get the PLL mode |
| 1535 | * @nid Node id of the target PLL |
| 1536 | * @mode Location to store the mode of the PLL |
| 1537 | * |
| 1538 | * @return Error if an argument is not valid or status as returned by the |
| 1539 | * PM controller (PMU) |
| 1540 | */ |
| 1541 | enum pm_ret_status pm_pll_get_mode(enum pm_node_id nid, enum pm_pll_mode *mode) |
| 1542 | { |
| 1543 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 1544 | |
| 1545 | /* Check if given node ID is a PLL node */ |
| 1546 | if (nid < NODE_APLL || nid > NODE_IOPLL) |
| 1547 | return PM_RET_ERROR_ARGS; |
| 1548 | |
| 1549 | /* Send request to the PMU */ |
| 1550 | PM_PACK_PAYLOAD2(payload, PM_PLL_GET_MODE, nid); |
| 1551 | return pm_ipi_send_sync(primary_proc, payload, mode, 1); |
| 1552 | } |
Kalyani Akula | 6ebe483 | 2020-11-22 22:42:10 -0800 | [diff] [blame] | 1553 | |
| 1554 | /** |
| 1555 | * pm_register_access() - PM API for register read/write access data |
| 1556 | * |
| 1557 | * @register_access_id Register_access_id which says register read/write |
| 1558 | * |
| 1559 | * @address Address of the register to be accessed |
| 1560 | * |
| 1561 | * @mask Mask value to be used while writing value |
| 1562 | * |
| 1563 | * @value Value to be written to register |
| 1564 | * |
| 1565 | * @out Returned output data |
| 1566 | * |
| 1567 | * This function returns requested data. |
| 1568 | * |
| 1569 | * @return Returns status, either success or error+reason |
| 1570 | */ |
| 1571 | enum pm_ret_status pm_register_access(unsigned int register_access_id, |
| 1572 | unsigned int address, |
| 1573 | unsigned int mask, |
| 1574 | unsigned int value, |
| 1575 | unsigned int *out) |
| 1576 | { |
| 1577 | enum pm_ret_status ret; |
| 1578 | |
| 1579 | if (((ZYNQMP_CSU_BASEADDR & address) != ZYNQMP_CSU_BASEADDR) && |
| 1580 | ((CSUDMA_BASE & address) != CSUDMA_BASE) && |
| 1581 | ((RSA_CORE_BASE & address) != RSA_CORE_BASE) && |
| 1582 | ((PMU_GLOBAL_BASE & address) != PMU_GLOBAL_BASE)) |
| 1583 | return PM_RET_ERROR_ACCESS; |
| 1584 | |
| 1585 | switch (register_access_id) { |
| 1586 | case CONFIG_REG_WRITE: |
| 1587 | ret = pm_mmio_write(address, mask, value); |
| 1588 | break; |
| 1589 | case CONFIG_REG_READ: |
| 1590 | ret = pm_mmio_read(address, out); |
| 1591 | break; |
| 1592 | default: |
| 1593 | ret = PM_RET_ERROR_ARGS; |
| 1594 | WARN("Unimplemented register_access call\n\r"); |
| 1595 | } |
| 1596 | return ret; |
| 1597 | } |
VNSL Durga | deb1a36 | 2020-11-23 04:46:04 -0800 | [diff] [blame] | 1598 | |
| 1599 | /** |
| 1600 | * pm_efuse_access() - To program or read efuse bits. |
| 1601 | * |
| 1602 | * This function provides access to the xilskey library to program/read |
| 1603 | * efuse bits. |
| 1604 | * |
| 1605 | * address_low: lower 32-bit Linear memory space address |
| 1606 | * address_high: higher 32-bit Linear memory space address |
| 1607 | * |
| 1608 | * value: Returned output value |
| 1609 | * |
| 1610 | * @return Returns status, either success or error+reason |
| 1611 | * |
| 1612 | */ |
| 1613 | enum pm_ret_status pm_efuse_access(uint32_t address_high, |
| 1614 | uint32_t address_low, |
| 1615 | uint32_t *value) |
| 1616 | { |
| 1617 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 1618 | |
| 1619 | /* Send request to the PMU */ |
| 1620 | PM_PACK_PAYLOAD3(payload, PM_EFUSE_ACCESS, address_high, address_low); |
| 1621 | |
Venkatesh Yadav Abbarapu | 7ace4af | 2020-11-23 04:26:54 -0800 | [diff] [blame] | 1622 | return pm_ipi_send_sync(primary_proc, payload, value, 1); |
| 1623 | } |
| 1624 | |
| 1625 | enum pm_ret_status em_set_action(unsigned int *value) |
| 1626 | { |
| 1627 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 1628 | |
| 1629 | /* Send request to the PMU */ |
| 1630 | EM_PACK_PAYLOAD1(payload, EM_SET_ACTION); |
| 1631 | return pm_ipi_send_sync(primary_proc, payload, value, 1); |
| 1632 | } |
| 1633 | |
| 1634 | enum pm_ret_status em_remove_action(unsigned int *value) |
| 1635 | { |
| 1636 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 1637 | |
| 1638 | /* Send request to the PMU */ |
| 1639 | EM_PACK_PAYLOAD1(payload, EM_REMOVE_ACTION); |
| 1640 | return pm_ipi_send_sync(primary_proc, payload, value, 1); |
| 1641 | } |
| 1642 | |
| 1643 | enum pm_ret_status em_send_errors(unsigned int *value) |
| 1644 | { |
| 1645 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 1646 | |
| 1647 | /* Send request to the PMU */ |
| 1648 | EM_PACK_PAYLOAD1(payload, EM_SEND_ERRORS); |
VNSL Durga | deb1a36 | 2020-11-23 04:46:04 -0800 | [diff] [blame] | 1649 | return pm_ipi_send_sync(primary_proc, payload, value, 1); |
| 1650 | } |
Ronak Jain | 42d6f39 | 2021-08-11 00:26:28 -0700 | [diff] [blame] | 1651 | |
| 1652 | /** |
| 1653 | * pm_feature_config() - feature configuration at runtime |
| 1654 | * |
| 1655 | * This function is used to send IPI request to PMUFW to configure feature |
| 1656 | * at runtime. The feature can be enable or disable as well as the feature |
| 1657 | * can be configure at runtime using an IOCTL call. |
| 1658 | * |
| 1659 | * @ioctl_id The ioctl id for the feature configuration |
| 1660 | * @config_id The config id of the feature to be configured |
| 1661 | * @value The value to be configured |
| 1662 | * @response Return to reference pointer |
| 1663 | * |
| 1664 | * @return Returns 0 on success or error value on failure |
| 1665 | */ |
| 1666 | enum pm_ret_status pm_feature_config(unsigned int ioctl_id, |
| 1667 | unsigned int config_id, |
| 1668 | unsigned int value, |
| 1669 | unsigned int *response) |
| 1670 | { |
| 1671 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 1672 | |
| 1673 | /* Send request to the PMU */ |
| 1674 | PM_PACK_PAYLOAD5(payload, PM_IOCTL, 0, ioctl_id, config_id, value); |
| 1675 | |
| 1676 | if (ioctl_id == IOCTL_GET_FEATURE_CONFIG) { |
| 1677 | return pm_ipi_send_sync(primary_proc, payload, response, 1); |
| 1678 | } else if (ioctl_id == IOCTL_SET_FEATURE_CONFIG) { |
| 1679 | return pm_ipi_send_sync(primary_proc, payload, NULL, 0); |
| 1680 | } else { |
| 1681 | return PM_RET_ERROR_ARGS; |
| 1682 | } |
| 1683 | } |