1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * phy-rtk-usb3.c RTK usb3.0 phy driver 4 * 5 * copyright (c) 2023 realtek semiconductor corporation 6 * 7 */ 8 9 #include <linux/module.h> 10 #include <linux/of.h> 11 #include <linux/of_device.h> 12 #include <linux/of_address.h> 13 #include <linux/uaccess.h> 14 #include <linux/debugfs.h> 15 #include <linux/nvmem-consumer.h> 16 #include <linux/regmap.h> 17 #include <linux/sys_soc.h> 18 #include <linux/mfd/syscon.h> 19 #include <linux/phy/phy.h> 20 #include <linux/usb.h> 21 #include <linux/usb/hcd.h> 22 #include <linux/usb/phy.h> 23 24 #define USB_MDIO_CTRL_PHY_BUSY BIT(7) 25 #define USB_MDIO_CTRL_PHY_WRITE BIT(0) 26 #define USB_MDIO_CTRL_PHY_ADDR_SHIFT 8 27 #define USB_MDIO_CTRL_PHY_DATA_SHIFT 16 28 29 #define MAX_USB_PHY_DATA_SIZE 0x30 30 #define PHY_ADDR_0X09 0x09 31 #define PHY_ADDR_0X0B 0x0b 32 #define PHY_ADDR_0X0D 0x0d 33 #define PHY_ADDR_0X10 0x10 34 #define PHY_ADDR_0X1F 0x1f 35 #define PHY_ADDR_0X20 0x20 36 #define PHY_ADDR_0X21 0x21 37 #define PHY_ADDR_0X30 0x30 38 39 #define REG_0X09_FORCE_CALIBRATION BIT(9) 40 #define REG_0X0B_RX_OFFSET_RANGE_MASK 0xc 41 #define REG_0X0D_RX_DEBUG_TEST_EN BIT(6) 42 #define REG_0X10_DEBUG_MODE_SETTING 0x3c0 43 #define REG_0X10_DEBUG_MODE_SETTING_MASK 0x3f8 44 #define REG_0X1F_RX_OFFSET_CODE_MASK 0x1e 45 46 #define USB_U3_TX_LFPS_SWING_TRIM_SHIFT 4 47 #define USB_U3_TX_LFPS_SWING_TRIM_MASK 0xf 48 #define AMPLITUDE_CONTROL_COARSE_MASK 0xff 49 #define AMPLITUDE_CONTROL_FINE_MASK 0xffff 50 #define AMPLITUDE_CONTROL_COARSE_DEFAULT 0xff 51 #define AMPLITUDE_CONTROL_FINE_DEFAULT 0xffff 52 53 #define PHY_ADDR_MAP_ARRAY_INDEX(addr) (addr) 54 #define ARRAY_INDEX_MAP_PHY_ADDR(index) (index) 55 56 struct phy_reg { 57 void __iomem *reg_mdio_ctl; 58 }; 59 60 struct phy_data { 61 u8 addr; 62 u16 data; 63 }; 64 65 struct phy_cfg { 66 int param_size; 67 struct phy_data param[MAX_USB_PHY_DATA_SIZE]; 68 69 bool check_efuse; 70 bool do_toggle; 71 bool do_toggle_once; 72 bool use_default_parameter; 73 bool check_rx_front_end_offset; 74 }; 75 76 struct phy_parameter { 77 struct phy_reg phy_reg; 78 79 /* Get from efuse */ 80 u8 efuse_usb_u3_tx_lfps_swing_trim; 81 82 /* Get from dts */ 83 u32 amplitude_control_coarse; 84 u32 amplitude_control_fine; 85 }; 86 87 struct rtk_phy { 88 struct usb_phy phy; 89 struct device *dev; 90 91 struct phy_cfg *phy_cfg; 92 int num_phy; 93 struct phy_parameter *phy_parameter; 94 95 struct dentry *debug_dir; 96 }; 97 98 #define PHY_IO_TIMEOUT_USEC (50000) 99 #define PHY_IO_DELAY_US (100) 100 101 static inline int utmi_wait_register(void __iomem *reg, u32 mask, u32 result) 102 { 103 int ret; 104 unsigned int val; 105 106 ret = read_poll_timeout(readl, val, ((val & mask) == result), 107 PHY_IO_DELAY_US, PHY_IO_TIMEOUT_USEC, false, reg); 108 if (ret) { 109 pr_err("%s can't program USB phy\n", __func__); 110 return -ETIMEDOUT; 111 } 112 113 return 0; 114 } 115 116 static int rtk_phy3_wait_vbusy(struct phy_reg *phy_reg) 117 { 118 return utmi_wait_register(phy_reg->reg_mdio_ctl, USB_MDIO_CTRL_PHY_BUSY, 0); 119 } 120 121 static u16 rtk_phy_read(struct phy_reg *phy_reg, char addr) 122 { 123 unsigned int tmp; 124 u32 value; 125 126 tmp = (addr << USB_MDIO_CTRL_PHY_ADDR_SHIFT); 127 128 writel(tmp, phy_reg->reg_mdio_ctl); 129 130 rtk_phy3_wait_vbusy(phy_reg); 131 132 value = readl(phy_reg->reg_mdio_ctl); 133 value = value >> USB_MDIO_CTRL_PHY_DATA_SHIFT; 134 135 return (u16)value; 136 } 137 138 static int rtk_phy_write(struct phy_reg *phy_reg, char addr, u16 data) 139 { 140 unsigned int val; 141 142 val = USB_MDIO_CTRL_PHY_WRITE | 143 (addr << USB_MDIO_CTRL_PHY_ADDR_SHIFT) | 144 (data << USB_MDIO_CTRL_PHY_DATA_SHIFT); 145 146 writel(val, phy_reg->reg_mdio_ctl); 147 148 rtk_phy3_wait_vbusy(phy_reg); 149 150 return 0; 151 } 152 153 static void do_rtk_usb3_phy_toggle(struct rtk_phy *rtk_phy, int index, bool connect) 154 { 155 struct phy_cfg *phy_cfg = rtk_phy->phy_cfg; 156 struct phy_reg *phy_reg; 157 struct phy_parameter *phy_parameter; 158 struct phy_data *phy_data; 159 u8 addr; 160 u16 data; 161 int i; 162 163 phy_parameter = &((struct phy_parameter *)rtk_phy->phy_parameter)[index]; 164 phy_reg = &phy_parameter->phy_reg; 165 166 if (!phy_cfg->do_toggle) 167 return; 168 169 i = PHY_ADDR_MAP_ARRAY_INDEX(PHY_ADDR_0X09); 170 phy_data = phy_cfg->param + i; 171 addr = phy_data->addr; 172 data = phy_data->data; 173 174 if (!addr && !data) { 175 addr = PHY_ADDR_0X09; 176 data = rtk_phy_read(phy_reg, addr); 177 phy_data->addr = addr; 178 phy_data->data = data; 179 } 180 181 rtk_phy_write(phy_reg, addr, data & (~REG_0X09_FORCE_CALIBRATION)); 182 mdelay(1); 183 rtk_phy_write(phy_reg, addr, data | REG_0X09_FORCE_CALIBRATION); 184 } 185 186 static int do_rtk_phy_init(struct rtk_phy *rtk_phy, int index) 187 { 188 struct phy_cfg *phy_cfg; 189 struct phy_reg *phy_reg; 190 struct phy_parameter *phy_parameter; 191 int i = 0; 192 193 phy_cfg = rtk_phy->phy_cfg; 194 phy_parameter = &((struct phy_parameter *)rtk_phy->phy_parameter)[index]; 195 phy_reg = &phy_parameter->phy_reg; 196 197 if (phy_cfg->use_default_parameter) 198 goto do_toggle; 199 200 for (i = 0; i < phy_cfg->param_size; i++) { 201 struct phy_data *phy_data = phy_cfg->param + i; 202 u8 addr = phy_data->addr; 203 u16 data = phy_data->data; 204 205 if (!addr && !data) 206 continue; 207 208 rtk_phy_write(phy_reg, addr, data); 209 } 210 211 do_toggle: 212 if (phy_cfg->do_toggle_once) 213 phy_cfg->do_toggle = true; 214 215 do_rtk_usb3_phy_toggle(rtk_phy, index, false); 216 217 if (phy_cfg->do_toggle_once) { 218 u16 check_value = 0; 219 int count = 10; 220 u16 value_0x0d, value_0x10; 221 222 /* Enable Debug mode by set 0x0D and 0x10 */ 223 value_0x0d = rtk_phy_read(phy_reg, PHY_ADDR_0X0D); 224 value_0x10 = rtk_phy_read(phy_reg, PHY_ADDR_0X10); 225 226 rtk_phy_write(phy_reg, PHY_ADDR_0X0D, 227 value_0x0d | REG_0X0D_RX_DEBUG_TEST_EN); 228 rtk_phy_write(phy_reg, PHY_ADDR_0X10, 229 (value_0x10 & ~REG_0X10_DEBUG_MODE_SETTING_MASK) | 230 REG_0X10_DEBUG_MODE_SETTING); 231 232 check_value = rtk_phy_read(phy_reg, PHY_ADDR_0X30); 233 234 while (!(check_value & BIT(15))) { 235 check_value = rtk_phy_read(phy_reg, PHY_ADDR_0X30); 236 mdelay(1); 237 if (count-- < 0) 238 break; 239 } 240 241 if (!(check_value & BIT(15))) 242 dev_info(rtk_phy->dev, "toggle fail addr=0x%02x, data=0x%04x\n", 243 PHY_ADDR_0X30, check_value); 244 245 /* Disable Debug mode by set 0x0D and 0x10 to default*/ 246 rtk_phy_write(phy_reg, PHY_ADDR_0X0D, value_0x0d); 247 rtk_phy_write(phy_reg, PHY_ADDR_0X10, value_0x10); 248 249 phy_cfg->do_toggle = false; 250 } 251 252 if (phy_cfg->check_rx_front_end_offset) { 253 u16 rx_offset_code, rx_offset_range; 254 u16 code_mask = REG_0X1F_RX_OFFSET_CODE_MASK; 255 u16 range_mask = REG_0X0B_RX_OFFSET_RANGE_MASK; 256 bool do_update = false; 257 258 rx_offset_code = rtk_phy_read(phy_reg, PHY_ADDR_0X1F); 259 if (((rx_offset_code & code_mask) == 0x0) || 260 ((rx_offset_code & code_mask) == code_mask)) 261 do_update = true; 262 263 rx_offset_range = rtk_phy_read(phy_reg, PHY_ADDR_0X0B); 264 if (((rx_offset_range & range_mask) == range_mask) && do_update) { 265 dev_warn(rtk_phy->dev, "Don't update rx_offset_range (rx_offset_code=0x%x, rx_offset_range=0x%x)\n", 266 rx_offset_code, rx_offset_range); 267 do_update = false; 268 } 269 270 if (do_update) { 271 u16 tmp1, tmp2; 272 273 tmp1 = rx_offset_range & (~range_mask); 274 tmp2 = rx_offset_range & range_mask; 275 tmp2 += (1 << 2); 276 rx_offset_range = tmp1 | (tmp2 & range_mask); 277 rtk_phy_write(phy_reg, PHY_ADDR_0X0B, rx_offset_range); 278 goto do_toggle; 279 } 280 } 281 282 return 0; 283 } 284 285 static int rtk_phy_init(struct phy *phy) 286 { 287 struct rtk_phy *rtk_phy = phy_get_drvdata(phy); 288 int ret = 0; 289 int i; 290 unsigned long phy_init_time = jiffies; 291 292 for (i = 0; i < rtk_phy->num_phy; i++) 293 ret = do_rtk_phy_init(rtk_phy, i); 294 295 dev_dbg(rtk_phy->dev, "Initialized RTK USB 3.0 PHY (take %dms)\n", 296 jiffies_to_msecs(jiffies - phy_init_time)); 297 298 return ret; 299 } 300 301 static int rtk_phy_exit(struct phy *phy) 302 { 303 return 0; 304 } 305 306 static const struct phy_ops ops = { 307 .init = rtk_phy_init, 308 .exit = rtk_phy_exit, 309 .owner = THIS_MODULE, 310 }; 311 312 static void rtk_phy_toggle(struct usb_phy *usb3_phy, bool connect, int port) 313 { 314 int index = port; 315 struct rtk_phy *rtk_phy = NULL; 316 317 rtk_phy = dev_get_drvdata(usb3_phy->dev); 318 319 if (index > rtk_phy->num_phy) { 320 dev_err(rtk_phy->dev, "%s: The port=%d is not in usb phy (num_phy=%d)\n", 321 __func__, index, rtk_phy->num_phy); 322 return; 323 } 324 325 do_rtk_usb3_phy_toggle(rtk_phy, index, connect); 326 } 327 328 static int rtk_phy_notify_port_status(struct usb_phy *x, int port, 329 u16 portstatus, u16 portchange) 330 { 331 bool connect = false; 332 333 pr_debug("%s port=%d portstatus=0x%x portchange=0x%x\n", 334 __func__, port, (int)portstatus, (int)portchange); 335 if (portstatus & USB_PORT_STAT_CONNECTION) 336 connect = true; 337 338 if (portchange & USB_PORT_STAT_C_CONNECTION) 339 rtk_phy_toggle(x, connect, port); 340 341 return 0; 342 } 343 344 #ifdef CONFIG_DEBUG_FS 345 static struct dentry *create_phy_debug_root(void) 346 { 347 struct dentry *phy_debug_root; 348 349 phy_debug_root = debugfs_lookup("phy", usb_debug_root); 350 if (!phy_debug_root) 351 phy_debug_root = debugfs_create_dir("phy", usb_debug_root); 352 353 return phy_debug_root; 354 } 355 356 static int rtk_usb3_parameter_show(struct seq_file *s, void *unused) 357 { 358 struct rtk_phy *rtk_phy = s->private; 359 struct phy_cfg *phy_cfg; 360 int i, index; 361 362 phy_cfg = rtk_phy->phy_cfg; 363 364 seq_puts(s, "Property:\n"); 365 seq_printf(s, " check_efuse: %s\n", 366 phy_cfg->check_efuse ? "Enable" : "Disable"); 367 seq_printf(s, " do_toggle: %s\n", 368 phy_cfg->do_toggle ? "Enable" : "Disable"); 369 seq_printf(s, " do_toggle_once: %s\n", 370 phy_cfg->do_toggle_once ? "Enable" : "Disable"); 371 seq_printf(s, " use_default_parameter: %s\n", 372 phy_cfg->use_default_parameter ? "Enable" : "Disable"); 373 374 for (index = 0; index < rtk_phy->num_phy; index++) { 375 struct phy_reg *phy_reg; 376 struct phy_parameter *phy_parameter; 377 378 phy_parameter = &((struct phy_parameter *)rtk_phy->phy_parameter)[index]; 379 phy_reg = &phy_parameter->phy_reg; 380 381 seq_printf(s, "PHY %d:\n", index); 382 383 for (i = 0; i < phy_cfg->param_size; i++) { 384 struct phy_data *phy_data = phy_cfg->param + i; 385 u8 addr = ARRAY_INDEX_MAP_PHY_ADDR(i); 386 u16 data = phy_data->data; 387 388 if (!phy_data->addr && !data) 389 seq_printf(s, " addr = 0x%02x, data = none ==> read value = 0x%04x\n", 390 addr, rtk_phy_read(phy_reg, addr)); 391 else 392 seq_printf(s, " addr = 0x%02x, data = 0x%04x ==> read value = 0x%04x\n", 393 addr, data, rtk_phy_read(phy_reg, addr)); 394 } 395 396 seq_puts(s, "PHY Property:\n"); 397 seq_printf(s, " efuse_usb_u3_tx_lfps_swing_trim: 0x%x\n", 398 (int)phy_parameter->efuse_usb_u3_tx_lfps_swing_trim); 399 seq_printf(s, " amplitude_control_coarse: 0x%x\n", 400 (int)phy_parameter->amplitude_control_coarse); 401 seq_printf(s, " amplitude_control_fine: 0x%x\n", 402 (int)phy_parameter->amplitude_control_fine); 403 } 404 405 return 0; 406 } 407 DEFINE_SHOW_ATTRIBUTE(rtk_usb3_parameter); 408 409 static inline void create_debug_files(struct rtk_phy *rtk_phy) 410 { 411 struct dentry *phy_debug_root = NULL; 412 413 phy_debug_root = create_phy_debug_root(); 414 415 if (!phy_debug_root) 416 return; 417 418 rtk_phy->debug_dir = debugfs_create_dir(dev_name(rtk_phy->dev), phy_debug_root); 419 420 debugfs_create_file("parameter", 0444, rtk_phy->debug_dir, rtk_phy, 421 &rtk_usb3_parameter_fops); 422 423 return; 424 } 425 426 static inline void remove_debug_files(struct rtk_phy *rtk_phy) 427 { 428 debugfs_remove_recursive(rtk_phy->debug_dir); 429 } 430 #else 431 static inline void create_debug_files(struct rtk_phy *rtk_phy) { } 432 static inline void remove_debug_files(struct rtk_phy *rtk_phy) { } 433 #endif /* CONFIG_DEBUG_FS */ 434 435 static int get_phy_data_by_efuse(struct rtk_phy *rtk_phy, 436 struct phy_parameter *phy_parameter, int index) 437 { 438 struct phy_cfg *phy_cfg = rtk_phy->phy_cfg; 439 u8 value = 0; 440 struct nvmem_cell *cell; 441 442 if (!phy_cfg->check_efuse) 443 goto out; 444 445 cell = nvmem_cell_get(rtk_phy->dev, "usb_u3_tx_lfps_swing_trim"); 446 if (IS_ERR(cell)) { 447 dev_dbg(rtk_phy->dev, "%s no usb_u3_tx_lfps_swing_trim: %ld\n", 448 __func__, PTR_ERR(cell)); 449 } else { 450 unsigned char *buf; 451 size_t buf_size; 452 453 buf = nvmem_cell_read(cell, &buf_size); 454 if (!IS_ERR(buf)) { 455 value = buf[0] & USB_U3_TX_LFPS_SWING_TRIM_MASK; 456 kfree(buf); 457 } 458 nvmem_cell_put(cell); 459 } 460 461 if (value > 0 && value < 0x8) 462 phy_parameter->efuse_usb_u3_tx_lfps_swing_trim = 0x8; 463 else 464 phy_parameter->efuse_usb_u3_tx_lfps_swing_trim = (u8)value; 465 466 out: 467 return 0; 468 } 469 470 static void update_amplitude_control_value(struct rtk_phy *rtk_phy, 471 struct phy_parameter *phy_parameter) 472 { 473 struct phy_cfg *phy_cfg; 474 struct phy_reg *phy_reg; 475 476 phy_reg = &phy_parameter->phy_reg; 477 phy_cfg = rtk_phy->phy_cfg; 478 479 if (phy_parameter->amplitude_control_coarse != AMPLITUDE_CONTROL_COARSE_DEFAULT) { 480 u16 val_mask = AMPLITUDE_CONTROL_COARSE_MASK; 481 u16 data; 482 483 if (!phy_cfg->param[PHY_ADDR_0X20].addr && !phy_cfg->param[PHY_ADDR_0X20].data) { 484 phy_cfg->param[PHY_ADDR_0X20].addr = PHY_ADDR_0X20; 485 data = rtk_phy_read(phy_reg, PHY_ADDR_0X20); 486 } else { 487 data = phy_cfg->param[PHY_ADDR_0X20].data; 488 } 489 490 data &= (~val_mask); 491 data |= (phy_parameter->amplitude_control_coarse & val_mask); 492 493 phy_cfg->param[PHY_ADDR_0X20].data = data; 494 } 495 496 if (phy_parameter->efuse_usb_u3_tx_lfps_swing_trim) { 497 u8 efuse_val = phy_parameter->efuse_usb_u3_tx_lfps_swing_trim; 498 u16 val_mask = USB_U3_TX_LFPS_SWING_TRIM_MASK; 499 int val_shift = USB_U3_TX_LFPS_SWING_TRIM_SHIFT; 500 u16 data; 501 502 if (!phy_cfg->param[PHY_ADDR_0X20].addr && !phy_cfg->param[PHY_ADDR_0X20].data) { 503 phy_cfg->param[PHY_ADDR_0X20].addr = PHY_ADDR_0X20; 504 data = rtk_phy_read(phy_reg, PHY_ADDR_0X20); 505 } else { 506 data = phy_cfg->param[PHY_ADDR_0X20].data; 507 } 508 509 data &= ~(val_mask << val_shift); 510 data |= ((efuse_val & val_mask) << val_shift); 511 512 phy_cfg->param[PHY_ADDR_0X20].data = data; 513 } 514 515 if (phy_parameter->amplitude_control_fine != AMPLITUDE_CONTROL_FINE_DEFAULT) { 516 u16 val_mask = AMPLITUDE_CONTROL_FINE_MASK; 517 518 if (!phy_cfg->param[PHY_ADDR_0X21].addr && !phy_cfg->param[PHY_ADDR_0X21].data) 519 phy_cfg->param[PHY_ADDR_0X21].addr = PHY_ADDR_0X21; 520 521 phy_cfg->param[PHY_ADDR_0X21].data = 522 phy_parameter->amplitude_control_fine & val_mask; 523 } 524 } 525 526 static int parse_phy_data(struct rtk_phy *rtk_phy) 527 { 528 struct device *dev = rtk_phy->dev; 529 struct phy_parameter *phy_parameter; 530 int ret = 0; 531 int index; 532 533 rtk_phy->phy_parameter = devm_kzalloc(dev, sizeof(struct phy_parameter) * 534 rtk_phy->num_phy, GFP_KERNEL); 535 if (!rtk_phy->phy_parameter) 536 return -ENOMEM; 537 538 for (index = 0; index < rtk_phy->num_phy; index++) { 539 phy_parameter = &((struct phy_parameter *)rtk_phy->phy_parameter)[index]; 540 541 phy_parameter->phy_reg.reg_mdio_ctl = of_iomap(dev->of_node, 0) + index; 542 543 /* Amplitude control address 0x20 bit 0 to bit 7 */ 544 if (of_property_read_u32(dev->of_node, "realtek,amplitude-control-coarse-tuning", 545 &phy_parameter->amplitude_control_coarse)) 546 phy_parameter->amplitude_control_coarse = AMPLITUDE_CONTROL_COARSE_DEFAULT; 547 548 /* Amplitude control address 0x21 bit 0 to bit 16 */ 549 if (of_property_read_u32(dev->of_node, "realtek,amplitude-control-fine-tuning", 550 &phy_parameter->amplitude_control_fine)) 551 phy_parameter->amplitude_control_fine = AMPLITUDE_CONTROL_FINE_DEFAULT; 552 553 get_phy_data_by_efuse(rtk_phy, phy_parameter, index); 554 555 update_amplitude_control_value(rtk_phy, phy_parameter); 556 } 557 558 return ret; 559 } 560 561 static int rtk_usb3phy_probe(struct platform_device *pdev) 562 { 563 struct rtk_phy *rtk_phy; 564 struct device *dev = &pdev->dev; 565 struct phy *generic_phy; 566 struct phy_provider *phy_provider; 567 const struct phy_cfg *phy_cfg; 568 int ret; 569 570 phy_cfg = of_device_get_match_data(dev); 571 if (!phy_cfg) { 572 dev_err(dev, "phy config are not assigned!\n"); 573 return -EINVAL; 574 } 575 576 rtk_phy = devm_kzalloc(dev, sizeof(*rtk_phy), GFP_KERNEL); 577 if (!rtk_phy) 578 return -ENOMEM; 579 580 rtk_phy->dev = &pdev->dev; 581 rtk_phy->phy.dev = rtk_phy->dev; 582 rtk_phy->phy.label = "rtk-usb3phy"; 583 rtk_phy->phy.notify_port_status = rtk_phy_notify_port_status; 584 585 rtk_phy->phy_cfg = devm_kzalloc(dev, sizeof(*phy_cfg), GFP_KERNEL); 586 587 memcpy(rtk_phy->phy_cfg, phy_cfg, sizeof(*phy_cfg)); 588 589 rtk_phy->num_phy = 1; 590 591 ret = parse_phy_data(rtk_phy); 592 if (ret) 593 goto err; 594 595 platform_set_drvdata(pdev, rtk_phy); 596 597 generic_phy = devm_phy_create(rtk_phy->dev, NULL, &ops); 598 if (IS_ERR(generic_phy)) 599 return PTR_ERR(generic_phy); 600 601 phy_set_drvdata(generic_phy, rtk_phy); 602 603 phy_provider = devm_of_phy_provider_register(rtk_phy->dev, of_phy_simple_xlate); 604 if (IS_ERR(phy_provider)) 605 return PTR_ERR(phy_provider); 606 607 ret = usb_add_phy_dev(&rtk_phy->phy); 608 if (ret) 609 goto err; 610 611 create_debug_files(rtk_phy); 612 613 err: 614 return ret; 615 } 616 617 static void rtk_usb3phy_remove(struct platform_device *pdev) 618 { 619 struct rtk_phy *rtk_phy = platform_get_drvdata(pdev); 620 621 remove_debug_files(rtk_phy); 622 623 usb_remove_phy(&rtk_phy->phy); 624 } 625 626 static const struct phy_cfg rtd1295_phy_cfg = { 627 .param_size = MAX_USB_PHY_DATA_SIZE, 628 .param = { [0] = {0x01, 0x4008}, [1] = {0x01, 0xe046}, 629 [2] = {0x02, 0x6046}, [3] = {0x03, 0x2779}, 630 [4] = {0x04, 0x72f5}, [5] = {0x05, 0x2ad3}, 631 [6] = {0x06, 0x000e}, [7] = {0x07, 0x2e00}, 632 [8] = {0x08, 0x3591}, [9] = {0x09, 0x525c}, 633 [10] = {0x0a, 0xa600}, [11] = {0x0b, 0xa904}, 634 [12] = {0x0c, 0xc000}, [13] = {0x0d, 0xef1c}, 635 [14] = {0x0e, 0x2000}, [15] = {0x0f, 0x0000}, 636 [16] = {0x10, 0x000c}, [17] = {0x11, 0x4c00}, 637 [18] = {0x12, 0xfc00}, [19] = {0x13, 0x0c81}, 638 [20] = {0x14, 0xde01}, [21] = {0x15, 0x0000}, 639 [22] = {0x16, 0x0000}, [23] = {0x17, 0x0000}, 640 [24] = {0x18, 0x0000}, [25] = {0x19, 0x4004}, 641 [26] = {0x1a, 0x1260}, [27] = {0x1b, 0xff00}, 642 [28] = {0x1c, 0xcb00}, [29] = {0x1d, 0xa03f}, 643 [30] = {0x1e, 0xc2e0}, [31] = {0x1f, 0x2807}, 644 [32] = {0x20, 0x947a}, [33] = {0x21, 0x88aa}, 645 [34] = {0x22, 0x0057}, [35] = {0x23, 0xab66}, 646 [36] = {0x24, 0x0800}, [37] = {0x25, 0x0000}, 647 [38] = {0x26, 0x040a}, [39] = {0x27, 0x01d6}, 648 [40] = {0x28, 0xf8c2}, [41] = {0x29, 0x3080}, 649 [42] = {0x2a, 0x3082}, [43] = {0x2b, 0x2078}, 650 [44] = {0x2c, 0xffff}, [45] = {0x2d, 0xffff}, 651 [46] = {0x2e, 0x0000}, [47] = {0x2f, 0x0040}, }, 652 .check_efuse = false, 653 .do_toggle = true, 654 .do_toggle_once = false, 655 .use_default_parameter = false, 656 .check_rx_front_end_offset = false, 657 }; 658 659 static const struct phy_cfg rtd1619_phy_cfg = { 660 .param_size = MAX_USB_PHY_DATA_SIZE, 661 .param = { [8] = {0x08, 0x3591}, 662 [38] = {0x26, 0x840b}, 663 [40] = {0x28, 0xf842}, }, 664 .check_efuse = false, 665 .do_toggle = true, 666 .do_toggle_once = false, 667 .use_default_parameter = false, 668 .check_rx_front_end_offset = false, 669 }; 670 671 static const struct phy_cfg rtd1319_phy_cfg = { 672 .param_size = MAX_USB_PHY_DATA_SIZE, 673 .param = { [1] = {0x01, 0xac86}, 674 [6] = {0x06, 0x0003}, 675 [9] = {0x09, 0x924c}, 676 [10] = {0x0a, 0xa608}, 677 [11] = {0x0b, 0xb905}, 678 [14] = {0x0e, 0x2010}, 679 [32] = {0x20, 0x705a}, 680 [33] = {0x21, 0xf645}, 681 [34] = {0x22, 0x0013}, 682 [35] = {0x23, 0xcb66}, 683 [41] = {0x29, 0xff00}, }, 684 .check_efuse = true, 685 .do_toggle = true, 686 .do_toggle_once = false, 687 .use_default_parameter = false, 688 .check_rx_front_end_offset = false, 689 }; 690 691 static const struct phy_cfg rtd1619b_phy_cfg = { 692 .param_size = MAX_USB_PHY_DATA_SIZE, 693 .param = { [1] = {0x01, 0xac8c}, 694 [6] = {0x06, 0x0017}, 695 [9] = {0x09, 0x724c}, 696 [10] = {0x0a, 0xb610}, 697 [11] = {0x0b, 0xb90d}, 698 [13] = {0x0d, 0xef2a}, 699 [15] = {0x0f, 0x9050}, 700 [16] = {0x10, 0x000c}, 701 [32] = {0x20, 0x70ff}, 702 [34] = {0x22, 0x0013}, 703 [35] = {0x23, 0xdb66}, 704 [38] = {0x26, 0x8609}, 705 [41] = {0x29, 0xff13}, 706 [42] = {0x2a, 0x3070}, }, 707 .check_efuse = true, 708 .do_toggle = false, 709 .do_toggle_once = true, 710 .use_default_parameter = false, 711 .check_rx_front_end_offset = false, 712 }; 713 714 static const struct phy_cfg rtd1319d_phy_cfg = { 715 .param_size = MAX_USB_PHY_DATA_SIZE, 716 .param = { [1] = {0x01, 0xac89}, 717 [4] = {0x04, 0xf2f5}, 718 [6] = {0x06, 0x0017}, 719 [9] = {0x09, 0x424c}, 720 [10] = {0x0a, 0x9610}, 721 [11] = {0x0b, 0x9901}, 722 [12] = {0x0c, 0xf000}, 723 [13] = {0x0d, 0xef2a}, 724 [14] = {0x0e, 0x1000}, 725 [15] = {0x0f, 0x9050}, 726 [32] = {0x20, 0x7077}, 727 [35] = {0x23, 0x0b62}, 728 [37] = {0x25, 0x10ec}, 729 [42] = {0x2a, 0x3070}, }, 730 .check_efuse = true, 731 .do_toggle = false, 732 .do_toggle_once = true, 733 .use_default_parameter = false, 734 .check_rx_front_end_offset = true, 735 }; 736 737 static const struct of_device_id usbphy_rtk_dt_match[] = { 738 { .compatible = "realtek,rtd1295-usb3phy", .data = &rtd1295_phy_cfg }, 739 { .compatible = "realtek,rtd1319-usb3phy", .data = &rtd1319_phy_cfg }, 740 { .compatible = "realtek,rtd1319d-usb3phy", .data = &rtd1319d_phy_cfg }, 741 { .compatible = "realtek,rtd1619-usb3phy", .data = &rtd1619_phy_cfg }, 742 { .compatible = "realtek,rtd1619b-usb3phy", .data = &rtd1619b_phy_cfg }, 743 {}, 744 }; 745 MODULE_DEVICE_TABLE(of, usbphy_rtk_dt_match); 746 747 static struct platform_driver rtk_usb3phy_driver = { 748 .probe = rtk_usb3phy_probe, 749 .remove_new = rtk_usb3phy_remove, 750 .driver = { 751 .name = "rtk-usb3phy", 752 .of_match_table = usbphy_rtk_dt_match, 753 }, 754 }; 755 756 module_platform_driver(rtk_usb3phy_driver); 757 758 MODULE_LICENSE("GPL"); 759 MODULE_ALIAS("platform: rtk-usb3phy"); 760 MODULE_AUTHOR("Stanley Chang <stanley_chang@realtek.com>"); 761 MODULE_DESCRIPTION("Realtek usb 3.0 phy driver"); 762