Rajan Vaja | 5529a01 | 2018-01-17 02:39:23 -0800 | [diff] [blame] | 1 | /* |
Tejas Patel | 6552a55 | 2020-11-22 23:37:55 -0800 | [diff] [blame] | 2 | * Copyright (c) 2018-2020, ARM Limited and Contributors. All rights reserved. |
Rajan Vaja | 5529a01 | 2018-01-17 02:39:23 -0800 | [diff] [blame] | 3 | * |
| 4 | * SPDX-License-Identifier: BSD-3-Clause |
| 5 | */ |
| 6 | |
| 7 | /* |
| 8 | * ZynqMP system level PM-API functions for ioctl. |
| 9 | */ |
| 10 | |
| 11 | #include <arch_helpers.h> |
Antonio Nino Diaz | e0f9063 | 2018-12-14 00:18:21 +0000 | [diff] [blame] | 12 | #include <drivers/delay_timer.h> |
| 13 | #include <lib/mmio.h> |
| 14 | #include <plat/common/platform.h> |
Jolly Shah | 16fe5ab | 2019-01-08 11:16:16 -0800 | [diff] [blame] | 15 | #include <zynqmp_def.h> |
Antonio Nino Diaz | e0f9063 | 2018-12-14 00:18:21 +0000 | [diff] [blame] | 16 | |
Rajan Vaja | 3511613 | 2018-01-17 02:39:25 -0800 | [diff] [blame] | 17 | #include "pm_api_clock.h" |
Rajan Vaja | 5529a01 | 2018-01-17 02:39:23 -0800 | [diff] [blame] | 18 | #include "pm_api_ioctl.h" |
| 19 | #include "pm_api_sys.h" |
| 20 | #include "pm_client.h" |
| 21 | #include "pm_common.h" |
| 22 | #include "pm_ipi.h" |
Rajan Vaja | 5529a01 | 2018-01-17 02:39:23 -0800 | [diff] [blame] | 23 | |
| 24 | /** |
| 25 | * pm_ioctl_get_rpu_oper_mode () - Get current RPU operation mode |
| 26 | * @mode Buffer to store value of oper mode(Split/Lock-step) |
| 27 | * |
| 28 | * This function provides current configured RPU operational mode. |
| 29 | * |
| 30 | * @return Returns status, either success or error+reason |
| 31 | */ |
| 32 | static enum pm_ret_status pm_ioctl_get_rpu_oper_mode(unsigned int *mode) |
| 33 | { |
| 34 | unsigned int val; |
| 35 | |
| 36 | val = mmio_read_32(ZYNQMP_RPU_GLBL_CNTL); |
| 37 | val &= ZYNQMP_SLSPLIT_MASK; |
Jolly Shah | 69fb5bf | 2018-02-07 16:25:41 -0800 | [diff] [blame] | 38 | if (val == 0) |
Rajan Vaja | 5529a01 | 2018-01-17 02:39:23 -0800 | [diff] [blame] | 39 | *mode = PM_RPU_MODE_LOCKSTEP; |
Jolly Shah | 69fb5bf | 2018-02-07 16:25:41 -0800 | [diff] [blame] | 40 | else |
| 41 | *mode = PM_RPU_MODE_SPLIT; |
Rajan Vaja | 5529a01 | 2018-01-17 02:39:23 -0800 | [diff] [blame] | 42 | |
| 43 | return PM_RET_SUCCESS; |
| 44 | } |
| 45 | |
| 46 | /** |
| 47 | * pm_ioctl_set_rpu_oper_mode () - Configure RPU operation mode |
| 48 | * @mode Value to set for oper mode(Split/Lock-step) |
| 49 | * |
| 50 | * This function configures RPU operational mode(Split/Lock-step). |
| 51 | * It also sets TCM combined mode in RPU lock-step and TCM non-combined |
| 52 | * mode for RPU split mode. In case of Lock step mode, RPU1's output is |
| 53 | * clamped. |
| 54 | * |
| 55 | * @return Returns status, either success or error+reason |
| 56 | */ |
| 57 | static enum pm_ret_status pm_ioctl_set_rpu_oper_mode(unsigned int mode) |
| 58 | { |
| 59 | unsigned int val; |
| 60 | |
Justin Chadwell | 42d18ca | 2019-09-18 14:13:42 +0100 | [diff] [blame] | 61 | if (mmio_read_32(CRL_APB_RST_LPD_TOP) & CRL_APB_RPU_AMBA_RESET) |
Rajan Vaja | 5529a01 | 2018-01-17 02:39:23 -0800 | [diff] [blame] | 62 | return PM_RET_ERROR_ACCESS; |
| 63 | |
| 64 | val = mmio_read_32(ZYNQMP_RPU_GLBL_CNTL); |
| 65 | |
| 66 | if (mode == PM_RPU_MODE_SPLIT) { |
| 67 | val |= ZYNQMP_SLSPLIT_MASK; |
| 68 | val &= ~ZYNQMP_TCM_COMB_MASK; |
| 69 | val &= ~ZYNQMP_SLCLAMP_MASK; |
| 70 | } else if (mode == PM_RPU_MODE_LOCKSTEP) { |
| 71 | val &= ~ZYNQMP_SLSPLIT_MASK; |
| 72 | val |= ZYNQMP_TCM_COMB_MASK; |
| 73 | val |= ZYNQMP_SLCLAMP_MASK; |
| 74 | } else { |
| 75 | return PM_RET_ERROR_ARGS; |
| 76 | } |
| 77 | |
| 78 | mmio_write_32(ZYNQMP_RPU_GLBL_CNTL, val); |
| 79 | |
| 80 | return PM_RET_SUCCESS; |
| 81 | } |
| 82 | |
| 83 | /** |
| 84 | * pm_ioctl_config_boot_addr() - Configure RPU boot address |
| 85 | * @nid Node ID of RPU |
| 86 | * @value Value to set for boot address (TCM/OCM) |
| 87 | * |
| 88 | * This function configures RPU boot address(memory). |
| 89 | * |
| 90 | * @return Returns status, either success or error+reason |
| 91 | */ |
| 92 | static enum pm_ret_status pm_ioctl_config_boot_addr(enum pm_node_id nid, |
| 93 | unsigned int value) |
| 94 | { |
| 95 | unsigned int rpu_cfg_addr, val; |
| 96 | |
| 97 | if (nid == NODE_RPU_0) |
| 98 | rpu_cfg_addr = ZYNQMP_RPU0_CFG; |
| 99 | else if (nid == NODE_RPU_1) |
| 100 | rpu_cfg_addr = ZYNQMP_RPU1_CFG; |
| 101 | else |
| 102 | return PM_RET_ERROR_ARGS; |
| 103 | |
| 104 | val = mmio_read_32(rpu_cfg_addr); |
| 105 | |
| 106 | if (value == PM_RPU_BOOTMEM_LOVEC) |
| 107 | val &= ~ZYNQMP_VINITHI_MASK; |
| 108 | else if (value == PM_RPU_BOOTMEM_HIVEC) |
| 109 | val |= ZYNQMP_VINITHI_MASK; |
| 110 | else |
| 111 | return PM_RET_ERROR_ARGS; |
| 112 | |
| 113 | mmio_write_32(rpu_cfg_addr, val); |
| 114 | |
| 115 | return PM_RET_SUCCESS; |
| 116 | } |
| 117 | |
| 118 | /** |
| 119 | * pm_ioctl_config_tcm_comb() - Configure TCM combined mode |
| 120 | * @value Value to set (Split/Combined) |
| 121 | * |
| 122 | * This function configures TCM to be in split mode or combined |
| 123 | * mode. |
| 124 | * |
| 125 | * @return Returns status, either success or error+reason |
| 126 | */ |
| 127 | static enum pm_ret_status pm_ioctl_config_tcm_comb(unsigned int value) |
| 128 | { |
| 129 | unsigned int val; |
| 130 | |
| 131 | val = mmio_read_32(ZYNQMP_RPU_GLBL_CNTL); |
| 132 | |
| 133 | if (value == PM_RPU_TCM_SPLIT) |
| 134 | val &= ~ZYNQMP_TCM_COMB_MASK; |
| 135 | else if (value == PM_RPU_TCM_COMB) |
| 136 | val |= ZYNQMP_TCM_COMB_MASK; |
| 137 | else |
| 138 | return PM_RET_ERROR_ARGS; |
| 139 | |
| 140 | mmio_write_32(ZYNQMP_RPU_GLBL_CNTL, val); |
| 141 | |
| 142 | return PM_RET_SUCCESS; |
| 143 | } |
| 144 | |
| 145 | /** |
Rajan Vaja | aea41bb | 2018-01-17 02:39:24 -0800 | [diff] [blame] | 146 | * pm_ioctl_set_tapdelay_bypass() - Enable/Disable tap delay bypass |
| 147 | * @type Type of tap delay to enable/disable (e.g. QSPI) |
| 148 | * @value Enable/Disable |
| 149 | * |
| 150 | * This function enable/disable tap delay bypass. |
| 151 | * |
| 152 | * @return Returns status, either success or error+reason |
| 153 | */ |
| 154 | static enum pm_ret_status pm_ioctl_set_tapdelay_bypass(unsigned int type, |
| 155 | unsigned int value) |
| 156 | { |
| 157 | if ((value != PM_TAPDELAY_BYPASS_ENABLE && |
| 158 | value != PM_TAPDELAY_BYPASS_DISABLE) || type >= PM_TAPDELAY_MAX) |
| 159 | return PM_RET_ERROR_ARGS; |
| 160 | |
| 161 | return pm_mmio_write(IOU_TAPDLY_BYPASS, TAP_DELAY_MASK, value << type); |
| 162 | } |
| 163 | |
| 164 | /** |
| 165 | * pm_ioctl_set_sgmii_mode() - Set SGMII mode for the GEM device |
| 166 | * @nid Node ID of the device |
| 167 | * @value Enable/Disable |
| 168 | * |
| 169 | * This function enable/disable SGMII mode for the GEM device. |
| 170 | * While enabling SGMII mode, it also ties the GEM PCS Signal |
| 171 | * Detect to 1 and selects EMIO for RX clock generation. |
| 172 | * |
| 173 | * @return Returns status, either success or error+reason |
| 174 | */ |
| 175 | static enum pm_ret_status pm_ioctl_set_sgmii_mode(enum pm_node_id nid, |
| 176 | unsigned int value) |
| 177 | { |
| 178 | unsigned int val, mask, shift; |
Jolly Shah | 69fb5bf | 2018-02-07 16:25:41 -0800 | [diff] [blame] | 179 | enum pm_ret_status ret; |
Rajan Vaja | aea41bb | 2018-01-17 02:39:24 -0800 | [diff] [blame] | 180 | |
| 181 | if (value != PM_SGMII_DISABLE && value != PM_SGMII_ENABLE) |
| 182 | return PM_RET_ERROR_ARGS; |
| 183 | |
| 184 | switch (nid) { |
| 185 | case NODE_ETH_0: |
| 186 | shift = 0; |
| 187 | break; |
| 188 | case NODE_ETH_1: |
| 189 | shift = 1; |
| 190 | break; |
| 191 | case NODE_ETH_2: |
| 192 | shift = 2; |
| 193 | break; |
| 194 | case NODE_ETH_3: |
| 195 | shift = 3; |
| 196 | break; |
| 197 | default: |
| 198 | return PM_RET_ERROR_ARGS; |
| 199 | } |
| 200 | |
| 201 | if (value == PM_SGMII_DISABLE) { |
| 202 | mask = GEM_SGMII_MASK << GEM_CLK_CTRL_OFFSET * shift; |
Jolly Shah | 69fb5bf | 2018-02-07 16:25:41 -0800 | [diff] [blame] | 203 | ret = pm_mmio_write(IOU_GEM_CLK_CTRL, mask, 0U); |
Rajan Vaja | aea41bb | 2018-01-17 02:39:24 -0800 | [diff] [blame] | 204 | } else { |
| 205 | /* Tie the GEM PCS Signal Detect to 1 */ |
| 206 | mask = SGMII_SD_MASK << SGMII_SD_OFFSET * shift; |
| 207 | val = SGMII_PCS_SD_1 << SGMII_SD_OFFSET * shift; |
| 208 | ret = pm_mmio_write(IOU_GEM_CTRL, mask, val); |
Jolly Shah | 69fb5bf | 2018-02-07 16:25:41 -0800 | [diff] [blame] | 209 | if (ret != PM_RET_SUCCESS) |
Rajan Vaja | aea41bb | 2018-01-17 02:39:24 -0800 | [diff] [blame] | 210 | return ret; |
| 211 | |
| 212 | /* Set the GEM to SGMII mode */ |
| 213 | mask = GEM_CLK_CTRL_MASK << GEM_CLK_CTRL_OFFSET * shift; |
| 214 | val = GEM_RX_SRC_SEL_GTR | GEM_SGMII_MODE; |
| 215 | val <<= GEM_CLK_CTRL_OFFSET * shift; |
| 216 | ret = pm_mmio_write(IOU_GEM_CLK_CTRL, mask, val); |
| 217 | } |
| 218 | |
| 219 | return ret; |
| 220 | } |
| 221 | |
| 222 | /** |
| 223 | * pm_ioctl_sd_dll_reset() - Reset DLL logic |
| 224 | * @nid Node ID of the device |
| 225 | * @type Reset type |
| 226 | * |
| 227 | * This function resets DLL logic for the SD device. |
| 228 | * |
| 229 | * @return Returns status, either success or error+reason |
| 230 | */ |
| 231 | static enum pm_ret_status pm_ioctl_sd_dll_reset(enum pm_node_id nid, |
| 232 | unsigned int type) |
| 233 | { |
| 234 | unsigned int mask, val; |
Jolly Shah | 69fb5bf | 2018-02-07 16:25:41 -0800 | [diff] [blame] | 235 | enum pm_ret_status ret; |
Rajan Vaja | aea41bb | 2018-01-17 02:39:24 -0800 | [diff] [blame] | 236 | |
| 237 | if (nid == NODE_SD_0) { |
| 238 | mask = ZYNQMP_SD0_DLL_RST_MASK; |
| 239 | val = ZYNQMP_SD0_DLL_RST; |
| 240 | } else if (nid == NODE_SD_1) { |
| 241 | mask = ZYNQMP_SD1_DLL_RST_MASK; |
| 242 | val = ZYNQMP_SD1_DLL_RST; |
| 243 | } else { |
| 244 | return PM_RET_ERROR_ARGS; |
| 245 | } |
| 246 | |
| 247 | switch (type) { |
| 248 | case PM_DLL_RESET_ASSERT: |
| 249 | case PM_DLL_RESET_PULSE: |
| 250 | ret = pm_mmio_write(ZYNQMP_SD_DLL_CTRL, mask, val); |
Jolly Shah | 69fb5bf | 2018-02-07 16:25:41 -0800 | [diff] [blame] | 251 | if (ret != PM_RET_SUCCESS) |
Rajan Vaja | aea41bb | 2018-01-17 02:39:24 -0800 | [diff] [blame] | 252 | return ret; |
| 253 | |
| 254 | if (type == PM_DLL_RESET_ASSERT) |
| 255 | break; |
| 256 | mdelay(1); |
Daniel Boulby | 8942a1b | 2018-06-22 14:16:03 +0100 | [diff] [blame] | 257 | /* Fallthrough */ |
Rajan Vaja | aea41bb | 2018-01-17 02:39:24 -0800 | [diff] [blame] | 258 | case PM_DLL_RESET_RELEASE: |
| 259 | ret = pm_mmio_write(ZYNQMP_SD_DLL_CTRL, mask, 0); |
| 260 | break; |
| 261 | default: |
| 262 | ret = PM_RET_ERROR_ARGS; |
Jolly Shah | 69fb5bf | 2018-02-07 16:25:41 -0800 | [diff] [blame] | 263 | break; |
Rajan Vaja | aea41bb | 2018-01-17 02:39:24 -0800 | [diff] [blame] | 264 | } |
| 265 | |
| 266 | return ret; |
| 267 | } |
| 268 | |
| 269 | /** |
| 270 | * pm_ioctl_sd_set_tapdelay() - Set tap delay for the SD device |
| 271 | * @nid Node ID of the device |
| 272 | * @type Type of tap delay to set (input/output) |
| 273 | * @value Value to set fot the tap delay |
| 274 | * |
| 275 | * This function sets input/output tap delay for the SD device. |
| 276 | * |
| 277 | * @return Returns status, either success or error+reason |
| 278 | */ |
| 279 | static enum pm_ret_status pm_ioctl_sd_set_tapdelay(enum pm_node_id nid, |
| 280 | enum tap_delay_type type, |
| 281 | unsigned int value) |
| 282 | { |
| 283 | unsigned int shift; |
Jolly Shah | 69fb5bf | 2018-02-07 16:25:41 -0800 | [diff] [blame] | 284 | enum pm_ret_status ret; |
Sai Krishna Potthuri | ad48c50 | 2020-10-20 07:00:06 -0600 | [diff] [blame] | 285 | unsigned int val, mask; |
Rajan Vaja | aea41bb | 2018-01-17 02:39:24 -0800 | [diff] [blame] | 286 | |
Sai Krishna Potthuri | ad48c50 | 2020-10-20 07:00:06 -0600 | [diff] [blame] | 287 | if (nid == NODE_SD_0) { |
Rajan Vaja | aea41bb | 2018-01-17 02:39:24 -0800 | [diff] [blame] | 288 | shift = 0; |
Sai Krishna Potthuri | ad48c50 | 2020-10-20 07:00:06 -0600 | [diff] [blame] | 289 | mask = ZYNQMP_SD0_DLL_RST_MASK; |
| 290 | } else if (nid == NODE_SD_1) { |
Rajan Vaja | aea41bb | 2018-01-17 02:39:24 -0800 | [diff] [blame] | 291 | shift = ZYNQMP_SD_TAP_OFFSET; |
Sai Krishna Potthuri | ad48c50 | 2020-10-20 07:00:06 -0600 | [diff] [blame] | 292 | mask = ZYNQMP_SD1_DLL_RST_MASK; |
| 293 | } else { |
Rajan Vaja | aea41bb | 2018-01-17 02:39:24 -0800 | [diff] [blame] | 294 | return PM_RET_ERROR_ARGS; |
Sai Krishna Potthuri | ad48c50 | 2020-10-20 07:00:06 -0600 | [diff] [blame] | 295 | } |
Rajan Vaja | aea41bb | 2018-01-17 02:39:24 -0800 | [diff] [blame] | 296 | |
Sai Krishna Potthuri | ad48c50 | 2020-10-20 07:00:06 -0600 | [diff] [blame] | 297 | ret = pm_mmio_read(ZYNQMP_SD_DLL_CTRL, &val); |
| 298 | if (ret != PM_RET_SUCCESS) { |
Rajan Vaja | aea41bb | 2018-01-17 02:39:24 -0800 | [diff] [blame] | 299 | return ret; |
Sai Krishna Potthuri | ad48c50 | 2020-10-20 07:00:06 -0600 | [diff] [blame] | 300 | } |
| 301 | |
| 302 | if ((val & mask) == 0) { |
| 303 | ret = pm_ioctl_sd_dll_reset(nid, PM_DLL_RESET_ASSERT); |
| 304 | if (ret != PM_RET_SUCCESS) { |
| 305 | return ret; |
| 306 | } |
| 307 | } |
Rajan Vaja | aea41bb | 2018-01-17 02:39:24 -0800 | [diff] [blame] | 308 | |
| 309 | if (type == PM_TAPDELAY_INPUT) { |
| 310 | ret = pm_mmio_write(ZYNQMP_SD_ITAP_DLY, |
Jolly Shah | 69fb5bf | 2018-02-07 16:25:41 -0800 | [diff] [blame] | 311 | (ZYNQMP_SD_ITAPCHGWIN_MASK << shift), |
| 312 | (ZYNQMP_SD_ITAPCHGWIN << shift)); |
| 313 | if (ret != PM_RET_SUCCESS) |
Rajan Vaja | aea41bb | 2018-01-17 02:39:24 -0800 | [diff] [blame] | 314 | goto reset_release; |
Sai Krishna Potthuri | 15da582 | 2020-10-30 00:09:43 -0600 | [diff] [blame] | 315 | if (value == 0) |
| 316 | ret = pm_mmio_write(ZYNQMP_SD_ITAP_DLY, |
| 317 | (ZYNQMP_SD_ITAPDLYENA_MASK << |
| 318 | shift), 0); |
| 319 | else |
| 320 | ret = pm_mmio_write(ZYNQMP_SD_ITAP_DLY, |
| 321 | (ZYNQMP_SD_ITAPDLYENA_MASK << |
| 322 | shift), (ZYNQMP_SD_ITAPDLYENA << |
| 323 | shift)); |
Jolly Shah | 69fb5bf | 2018-02-07 16:25:41 -0800 | [diff] [blame] | 324 | if (ret != PM_RET_SUCCESS) |
Rajan Vaja | aea41bb | 2018-01-17 02:39:24 -0800 | [diff] [blame] | 325 | goto reset_release; |
| 326 | ret = pm_mmio_write(ZYNQMP_SD_ITAP_DLY, |
Jolly Shah | 69fb5bf | 2018-02-07 16:25:41 -0800 | [diff] [blame] | 327 | (ZYNQMP_SD_ITAPDLYSEL_MASK << shift), |
| 328 | (value << shift)); |
| 329 | if (ret != PM_RET_SUCCESS) |
Rajan Vaja | aea41bb | 2018-01-17 02:39:24 -0800 | [diff] [blame] | 330 | goto reset_release; |
| 331 | ret = pm_mmio_write(ZYNQMP_SD_ITAP_DLY, |
Jolly Shah | 69fb5bf | 2018-02-07 16:25:41 -0800 | [diff] [blame] | 332 | (ZYNQMP_SD_ITAPCHGWIN_MASK << shift), 0); |
Rajan Vaja | aea41bb | 2018-01-17 02:39:24 -0800 | [diff] [blame] | 333 | } else if (type == PM_TAPDELAY_OUTPUT) { |
| 334 | ret = pm_mmio_write(ZYNQMP_SD_OTAP_DLY, |
Sai Krishna Potthuri | 15da582 | 2020-10-30 00:09:43 -0600 | [diff] [blame] | 335 | (ZYNQMP_SD_OTAPDLYENA_MASK << shift), 0); |
Jolly Shah | 69fb5bf | 2018-02-07 16:25:41 -0800 | [diff] [blame] | 336 | if (ret != PM_RET_SUCCESS) |
Rajan Vaja | aea41bb | 2018-01-17 02:39:24 -0800 | [diff] [blame] | 337 | goto reset_release; |
| 338 | ret = pm_mmio_write(ZYNQMP_SD_OTAP_DLY, |
Jolly Shah | 69fb5bf | 2018-02-07 16:25:41 -0800 | [diff] [blame] | 339 | (ZYNQMP_SD_OTAPDLYSEL_MASK << shift), |
| 340 | (value << shift)); |
Rajan Vaja | aea41bb | 2018-01-17 02:39:24 -0800 | [diff] [blame] | 341 | } else { |
| 342 | ret = PM_RET_ERROR_ARGS; |
| 343 | } |
| 344 | |
| 345 | reset_release: |
Sai Krishna Potthuri | ad48c50 | 2020-10-20 07:00:06 -0600 | [diff] [blame] | 346 | if ((val & mask) == 0) { |
| 347 | (void)pm_ioctl_sd_dll_reset(nid, PM_DLL_RESET_RELEASE); |
| 348 | } |
| 349 | |
Rajan Vaja | aea41bb | 2018-01-17 02:39:24 -0800 | [diff] [blame] | 350 | return ret; |
| 351 | } |
| 352 | |
| 353 | /** |
Rajan Vaja | 3511613 | 2018-01-17 02:39:25 -0800 | [diff] [blame] | 354 | * pm_ioctl_set_pll_frac_mode() - Ioctl function for |
| 355 | * setting pll mode |
Jolly Shah | cb5bc75 | 2019-01-02 12:46:46 -0800 | [diff] [blame] | 356 | * @pll PLL clock id |
Rajan Vaja | 3511613 | 2018-01-17 02:39:25 -0800 | [diff] [blame] | 357 | * @mode Mode fraction/integar |
| 358 | * |
| 359 | * This function sets PLL mode |
| 360 | * |
| 361 | * @return Returns status, either success or error+reason |
| 362 | */ |
| 363 | static enum pm_ret_status pm_ioctl_set_pll_frac_mode |
| 364 | (unsigned int pll, unsigned int mode) |
| 365 | { |
Jolly Shah | cb5bc75 | 2019-01-02 12:46:46 -0800 | [diff] [blame] | 366 | return pm_clock_set_pll_mode(pll, mode); |
Rajan Vaja | 3511613 | 2018-01-17 02:39:25 -0800 | [diff] [blame] | 367 | } |
| 368 | |
| 369 | /** |
| 370 | * pm_ioctl_get_pll_frac_mode() - Ioctl function for |
| 371 | * getting pll mode |
Jolly Shah | 77eb52f | 2019-01-02 12:49:21 -0800 | [diff] [blame] | 372 | * @pll PLL clock id |
Rajan Vaja | 3511613 | 2018-01-17 02:39:25 -0800 | [diff] [blame] | 373 | * @mode Mode fraction/integar |
| 374 | * |
| 375 | * This function return current PLL mode |
| 376 | * |
| 377 | * @return Returns status, either success or error+reason |
| 378 | */ |
| 379 | static enum pm_ret_status pm_ioctl_get_pll_frac_mode |
| 380 | (unsigned int pll, unsigned int *mode) |
| 381 | { |
Jolly Shah | 77eb52f | 2019-01-02 12:49:21 -0800 | [diff] [blame] | 382 | return pm_clock_get_pll_mode(pll, mode); |
Rajan Vaja | 3511613 | 2018-01-17 02:39:25 -0800 | [diff] [blame] | 383 | } |
| 384 | |
| 385 | /** |
| 386 | * pm_ioctl_set_pll_frac_data() - Ioctl function for |
| 387 | * setting pll fraction data |
Jolly Shah | 68116ef | 2019-01-02 12:42:56 -0800 | [diff] [blame] | 388 | * @pll PLL clock id |
Rajan Vaja | 3511613 | 2018-01-17 02:39:25 -0800 | [diff] [blame] | 389 | * @data fraction data |
| 390 | * |
| 391 | * This function sets fraction data. |
| 392 | * It is valid for fraction mode only. |
| 393 | * |
| 394 | * @return Returns status, either success or error+reason |
| 395 | */ |
| 396 | static enum pm_ret_status pm_ioctl_set_pll_frac_data |
| 397 | (unsigned int pll, unsigned int data) |
| 398 | { |
Jolly Shah | 68116ef | 2019-01-02 12:42:56 -0800 | [diff] [blame] | 399 | enum pm_node_id pll_nid; |
| 400 | enum pm_ret_status status; |
| 401 | |
| 402 | /* Get PLL node ID using PLL clock ID */ |
| 403 | status = pm_clock_get_pll_node_id(pll, &pll_nid); |
| 404 | if (status != PM_RET_SUCCESS) |
| 405 | return status; |
| 406 | |
| 407 | return pm_pll_set_parameter(pll_nid, PM_PLL_PARAM_DATA, data); |
Rajan Vaja | 3511613 | 2018-01-17 02:39:25 -0800 | [diff] [blame] | 408 | } |
| 409 | |
| 410 | /** |
| 411 | * pm_ioctl_get_pll_frac_data() - Ioctl function for |
| 412 | * getting pll fraction data |
Jolly Shah | b4c9946 | 2019-01-02 12:40:17 -0800 | [diff] [blame] | 413 | * @pll PLL clock id |
Rajan Vaja | 3511613 | 2018-01-17 02:39:25 -0800 | [diff] [blame] | 414 | * @data fraction data |
| 415 | * |
| 416 | * This function returns fraction data value. |
| 417 | * |
| 418 | * @return Returns status, either success or error+reason |
| 419 | */ |
| 420 | static enum pm_ret_status pm_ioctl_get_pll_frac_data |
| 421 | (unsigned int pll, unsigned int *data) |
| 422 | { |
Jolly Shah | b4c9946 | 2019-01-02 12:40:17 -0800 | [diff] [blame] | 423 | enum pm_node_id pll_nid; |
| 424 | enum pm_ret_status status; |
| 425 | |
| 426 | /* Get PLL node ID using PLL clock ID */ |
| 427 | status = pm_clock_get_pll_node_id(pll, &pll_nid); |
| 428 | if (status != PM_RET_SUCCESS) |
| 429 | return status; |
| 430 | |
| 431 | return pm_pll_get_parameter(pll_nid, PM_PLL_PARAM_DATA, data); |
Rajan Vaja | 3511613 | 2018-01-17 02:39:25 -0800 | [diff] [blame] | 432 | } |
| 433 | |
| 434 | /** |
Rajan Vaja | 393c0a2 | 2018-01-17 02:39:27 -0800 | [diff] [blame] | 435 | * pm_ioctl_write_ggs() - Ioctl function for writing |
| 436 | * global general storage (ggs) |
| 437 | * @index GGS register index |
| 438 | * @value Register value to be written |
| 439 | * |
| 440 | * This function writes value to GGS register. |
| 441 | * |
| 442 | * @return Returns status, either success or error+reason |
| 443 | */ |
| 444 | static enum pm_ret_status pm_ioctl_write_ggs(unsigned int index, |
| 445 | unsigned int value) |
| 446 | { |
| 447 | if (index >= GGS_NUM_REGS) |
| 448 | return PM_RET_ERROR_ARGS; |
| 449 | |
Jolly Shah | 69fb5bf | 2018-02-07 16:25:41 -0800 | [diff] [blame] | 450 | return pm_mmio_write(GGS_BASEADDR + (index << 2), |
| 451 | 0xFFFFFFFFU, value); |
Rajan Vaja | 393c0a2 | 2018-01-17 02:39:27 -0800 | [diff] [blame] | 452 | } |
| 453 | |
| 454 | /** |
| 455 | * pm_ioctl_read_ggs() - Ioctl function for reading |
| 456 | * global general storage (ggs) |
| 457 | * @index GGS register index |
| 458 | * @value Register value |
| 459 | * |
| 460 | * This function returns GGS register value. |
| 461 | * |
| 462 | * @return Returns status, either success or error+reason |
| 463 | */ |
| 464 | static enum pm_ret_status pm_ioctl_read_ggs(unsigned int index, |
| 465 | unsigned int *value) |
| 466 | { |
| 467 | if (index >= GGS_NUM_REGS) |
| 468 | return PM_RET_ERROR_ARGS; |
| 469 | |
| 470 | return pm_mmio_read(GGS_BASEADDR + (index << 2), value); |
| 471 | } |
| 472 | |
| 473 | /** |
| 474 | * pm_ioctl_write_pggs() - Ioctl function for writing persistent |
| 475 | * global general storage (pggs) |
| 476 | * @index PGGS register index |
| 477 | * @value Register value to be written |
| 478 | * |
| 479 | * This function writes value to PGGS register. |
| 480 | * |
| 481 | * @return Returns status, either success or error+reason |
| 482 | */ |
| 483 | static enum pm_ret_status pm_ioctl_write_pggs(unsigned int index, |
| 484 | unsigned int value) |
| 485 | { |
| 486 | if (index >= PGGS_NUM_REGS) |
| 487 | return PM_RET_ERROR_ARGS; |
| 488 | |
Jolly Shah | 69fb5bf | 2018-02-07 16:25:41 -0800 | [diff] [blame] | 489 | return pm_mmio_write(PGGS_BASEADDR + (index << 2), |
| 490 | 0xFFFFFFFFU, value); |
Rajan Vaja | 393c0a2 | 2018-01-17 02:39:27 -0800 | [diff] [blame] | 491 | } |
| 492 | |
| 493 | /** |
Siva Durga Prasad Paladugu | a22b885 | 2018-09-04 17:27:12 +0530 | [diff] [blame] | 494 | * pm_ioctl_afi() - Ioctl function for writing afi values |
| 495 | * |
| 496 | * @index AFI register index |
| 497 | * @value Register value to be written |
| 498 | * |
| 499 | * |
| 500 | * @return Returns status, either success or error+reason |
| 501 | */ |
| 502 | static enum pm_ret_status pm_ioctl_afi(unsigned int index, |
| 503 | unsigned int value) |
| 504 | { |
| 505 | unsigned int mask; |
| 506 | unsigned int regarr[] = {0xFD360000, |
| 507 | 0xFD360014, |
| 508 | 0xFD370000, |
| 509 | 0xFD370014, |
| 510 | 0xFD380000, |
| 511 | 0xFD380014, |
| 512 | 0xFD390000, |
| 513 | 0xFD390014, |
| 514 | 0xFD3a0000, |
| 515 | 0xFD3a0014, |
| 516 | 0xFD3b0000, |
| 517 | 0xFD3b0014, |
| 518 | 0xFF9b0000, |
| 519 | 0xFF9b0014, |
| 520 | 0xFD615000, |
| 521 | 0xFF419000, |
| 522 | }; |
| 523 | |
| 524 | if (index >= ARRAY_SIZE(regarr)) |
| 525 | return PM_RET_ERROR_ARGS; |
| 526 | |
| 527 | if (index < AFIFM6_WRCTRL) |
| 528 | mask = FABRIC_WIDTH; |
| 529 | else |
| 530 | mask = 0xf00; |
| 531 | |
| 532 | return pm_mmio_write(regarr[index], mask, value); |
| 533 | } |
| 534 | |
| 535 | /** |
Rajan Vaja | 393c0a2 | 2018-01-17 02:39:27 -0800 | [diff] [blame] | 536 | * pm_ioctl_read_pggs() - Ioctl function for reading persistent |
| 537 | * global general storage (pggs) |
| 538 | * @index PGGS register index |
| 539 | * @value Register value |
| 540 | * |
| 541 | * This function returns PGGS register value. |
| 542 | * |
| 543 | * @return Returns status, either success or error+reason |
| 544 | */ |
| 545 | static enum pm_ret_status pm_ioctl_read_pggs(unsigned int index, |
| 546 | unsigned int *value) |
| 547 | { |
| 548 | if (index >= PGGS_NUM_REGS) |
| 549 | return PM_RET_ERROR_ARGS; |
| 550 | |
| 551 | return pm_mmio_read(PGGS_BASEADDR + (index << 2), value); |
| 552 | } |
| 553 | |
| 554 | /** |
Siva Durga Prasad Paladugu | ed1d5cb | 2018-09-04 17:03:25 +0530 | [diff] [blame] | 555 | * pm_ioctl_ulpi_reset() - Ioctl function for performing ULPI reset |
| 556 | * |
| 557 | * This function peerforms the ULPI reset sequence for resetting |
| 558 | * the ULPI transceiver. |
| 559 | * |
| 560 | * @return Returns status, either success or error+reason |
| 561 | */ |
| 562 | static enum pm_ret_status pm_ioctl_ulpi_reset(void) |
| 563 | { |
| 564 | enum pm_ret_status ret; |
| 565 | |
| 566 | ret = pm_mmio_write(CRL_APB_BOOT_PIN_CTRL, CRL_APB_BOOT_PIN_MASK, |
| 567 | ZYNQMP_ULPI_RESET_VAL_HIGH); |
| 568 | if (ret != PM_RET_SUCCESS) |
| 569 | return ret; |
| 570 | |
| 571 | /* Drive ULPI assert for atleast 1ms */ |
| 572 | mdelay(1); |
| 573 | |
| 574 | ret = pm_mmio_write(CRL_APB_BOOT_PIN_CTRL, CRL_APB_BOOT_PIN_MASK, |
| 575 | ZYNQMP_ULPI_RESET_VAL_LOW); |
| 576 | if (ret != PM_RET_SUCCESS) |
| 577 | return ret; |
| 578 | |
| 579 | /* Drive ULPI de-assert for atleast 1ms */ |
| 580 | mdelay(1); |
| 581 | |
| 582 | ret = pm_mmio_write(CRL_APB_BOOT_PIN_CTRL, CRL_APB_BOOT_PIN_MASK, |
| 583 | ZYNQMP_ULPI_RESET_VAL_HIGH); |
| 584 | |
| 585 | return ret; |
| 586 | } |
| 587 | |
| 588 | /** |
Siva Durga Prasad Paladugu | ac8526f | 2018-09-04 17:12:51 +0530 | [diff] [blame] | 589 | * pm_ioctl_set_boot_health_status() - Ioctl for setting healthy boot status |
| 590 | * |
| 591 | * This function sets healthy bit value to indicate boot health status |
| 592 | * to firmware. |
| 593 | * |
| 594 | * @return Returns status, either success or error+reason |
| 595 | */ |
| 596 | static enum pm_ret_status pm_ioctl_set_boot_health_status(unsigned int value) |
| 597 | { |
Tejas Patel | 6552a55 | 2020-11-22 23:37:55 -0800 | [diff] [blame] | 598 | return pm_mmio_write(PMU_GLOBAL_GEN_STORAGE4, |
Siva Durga Prasad Paladugu | ac8526f | 2018-09-04 17:12:51 +0530 | [diff] [blame] | 599 | PM_BOOT_HEALTH_STATUS_MASK, value); |
| 600 | } |
| 601 | |
| 602 | /** |
Rajan Vaja | 5529a01 | 2018-01-17 02:39:23 -0800 | [diff] [blame] | 603 | * pm_api_ioctl() - PM IOCTL API for device control and configs |
| 604 | * @node_id Node ID of the device |
| 605 | * @ioctl_id ID of the requested IOCTL |
| 606 | * @arg1 Argument 1 to requested IOCTL call |
| 607 | * @arg2 Argument 2 to requested IOCTL call |
| 608 | * @value Returned output value |
| 609 | * |
| 610 | * This function calls IOCTL to firmware for device control and configuration. |
| 611 | * |
| 612 | * @return Returns status, either success or error+reason |
| 613 | */ |
| 614 | enum pm_ret_status pm_api_ioctl(enum pm_node_id nid, |
| 615 | unsigned int ioctl_id, |
| 616 | unsigned int arg1, |
| 617 | unsigned int arg2, |
| 618 | unsigned int *value) |
| 619 | { |
Jolly Shah | 69fb5bf | 2018-02-07 16:25:41 -0800 | [diff] [blame] | 620 | enum pm_ret_status ret; |
Rajan Vaja | 5529a01 | 2018-01-17 02:39:23 -0800 | [diff] [blame] | 621 | |
| 622 | switch (ioctl_id) { |
| 623 | case IOCTL_GET_RPU_OPER_MODE: |
| 624 | ret = pm_ioctl_get_rpu_oper_mode(value); |
| 625 | break; |
| 626 | case IOCTL_SET_RPU_OPER_MODE: |
| 627 | ret = pm_ioctl_set_rpu_oper_mode(arg1); |
| 628 | break; |
| 629 | case IOCTL_RPU_BOOT_ADDR_CONFIG: |
| 630 | ret = pm_ioctl_config_boot_addr(nid, arg1); |
| 631 | break; |
| 632 | case IOCTL_TCM_COMB_CONFIG: |
| 633 | ret = pm_ioctl_config_tcm_comb(arg1); |
| 634 | break; |
Rajan Vaja | aea41bb | 2018-01-17 02:39:24 -0800 | [diff] [blame] | 635 | case IOCTL_SET_TAPDELAY_BYPASS: |
| 636 | ret = pm_ioctl_set_tapdelay_bypass(arg1, arg2); |
| 637 | break; |
| 638 | case IOCTL_SET_SGMII_MODE: |
| 639 | ret = pm_ioctl_set_sgmii_mode(nid, arg1); |
| 640 | break; |
| 641 | case IOCTL_SD_DLL_RESET: |
| 642 | ret = pm_ioctl_sd_dll_reset(nid, arg1); |
| 643 | break; |
| 644 | case IOCTL_SET_SD_TAPDELAY: |
| 645 | ret = pm_ioctl_sd_set_tapdelay(nid, arg1, arg2); |
| 646 | break; |
Rajan Vaja | 3511613 | 2018-01-17 02:39:25 -0800 | [diff] [blame] | 647 | case IOCTL_SET_PLL_FRAC_MODE: |
| 648 | ret = pm_ioctl_set_pll_frac_mode(arg1, arg2); |
| 649 | break; |
| 650 | case IOCTL_GET_PLL_FRAC_MODE: |
| 651 | ret = pm_ioctl_get_pll_frac_mode(arg1, value); |
| 652 | break; |
| 653 | case IOCTL_SET_PLL_FRAC_DATA: |
| 654 | ret = pm_ioctl_set_pll_frac_data(arg1, arg2); |
| 655 | break; |
| 656 | case IOCTL_GET_PLL_FRAC_DATA: |
| 657 | ret = pm_ioctl_get_pll_frac_data(arg1, value); |
| 658 | break; |
Rajan Vaja | 393c0a2 | 2018-01-17 02:39:27 -0800 | [diff] [blame] | 659 | case IOCTL_WRITE_GGS: |
| 660 | ret = pm_ioctl_write_ggs(arg1, arg2); |
| 661 | break; |
| 662 | case IOCTL_READ_GGS: |
| 663 | ret = pm_ioctl_read_ggs(arg1, value); |
| 664 | break; |
| 665 | case IOCTL_WRITE_PGGS: |
| 666 | ret = pm_ioctl_write_pggs(arg1, arg2); |
| 667 | break; |
| 668 | case IOCTL_READ_PGGS: |
| 669 | ret = pm_ioctl_read_pggs(arg1, value); |
| 670 | break; |
Siva Durga Prasad Paladugu | ed1d5cb | 2018-09-04 17:03:25 +0530 | [diff] [blame] | 671 | case IOCTL_ULPI_RESET: |
| 672 | ret = pm_ioctl_ulpi_reset(); |
| 673 | break; |
Siva Durga Prasad Paladugu | ac8526f | 2018-09-04 17:12:51 +0530 | [diff] [blame] | 674 | case IOCTL_SET_BOOT_HEALTH_STATUS: |
| 675 | ret = pm_ioctl_set_boot_health_status(arg1); |
| 676 | break; |
Siva Durga Prasad Paladugu | a22b885 | 2018-09-04 17:27:12 +0530 | [diff] [blame] | 677 | case IOCTL_AFI: |
| 678 | ret = pm_ioctl_afi(arg1, arg2); |
| 679 | break; |
Rajan Vaja | 5529a01 | 2018-01-17 02:39:23 -0800 | [diff] [blame] | 680 | default: |
| 681 | ret = PM_RET_ERROR_NOTSUPPORTED; |
Jolly Shah | 69fb5bf | 2018-02-07 16:25:41 -0800 | [diff] [blame] | 682 | break; |
Rajan Vaja | 5529a01 | 2018-01-17 02:39:23 -0800 | [diff] [blame] | 683 | } |
| 684 | |
| 685 | return ret; |
| 686 | } |