1 // SPDX-License-Identifier: GPL-2.0+ 2 /* 3 * Copyright 2012 Freescale Semiconductor, Inc. 4 */ 5 6 #include <linux/module.h> 7 #include <linux/of_platform.h> 8 #include <linux/err.h> 9 #include <linux/io.h> 10 #include <linux/delay.h> 11 12 #include "ci_hdrc_imx.h" 13 14 #define MX25_USB_PHY_CTRL_OFFSET 0x08 15 #define MX25_BM_EXTERNAL_VBUS_DIVIDER BIT(23) 16 17 #define MX25_EHCI_INTERFACE_SINGLE_UNI (2 << 0) 18 #define MX25_EHCI_INTERFACE_DIFF_UNI (0 << 0) 19 #define MX25_EHCI_INTERFACE_MASK (0xf) 20 21 #define MX25_OTG_SIC_SHIFT 29 22 #define MX25_OTG_SIC_MASK (0x3 << MX25_OTG_SIC_SHIFT) 23 #define MX25_OTG_PM_BIT BIT(24) 24 #define MX25_OTG_PP_BIT BIT(11) 25 #define MX25_OTG_OCPOL_BIT BIT(3) 26 27 #define MX25_H1_SIC_SHIFT 21 28 #define MX25_H1_SIC_MASK (0x3 << MX25_H1_SIC_SHIFT) 29 #define MX25_H1_PP_BIT BIT(18) 30 #define MX25_H1_PM_BIT BIT(16) 31 #define MX25_H1_IPPUE_UP_BIT BIT(7) 32 #define MX25_H1_IPPUE_DOWN_BIT BIT(6) 33 #define MX25_H1_TLL_BIT BIT(5) 34 #define MX25_H1_USBTE_BIT BIT(4) 35 #define MX25_H1_OCPOL_BIT BIT(2) 36 37 #define MX27_H1_PM_BIT BIT(8) 38 #define MX27_H2_PM_BIT BIT(16) 39 #define MX27_OTG_PM_BIT BIT(24) 40 41 #define MX53_USB_OTG_PHY_CTRL_0_OFFSET 0x08 42 #define MX53_USB_OTG_PHY_CTRL_1_OFFSET 0x0c 43 #define MX53_USB_CTRL_1_OFFSET 0x10 44 #define MX53_USB_CTRL_1_H2_XCVR_CLK_SEL_MASK (0x11 << 2) 45 #define MX53_USB_CTRL_1_H2_XCVR_CLK_SEL_ULPI BIT(2) 46 #define MX53_USB_CTRL_1_H3_XCVR_CLK_SEL_MASK (0x11 << 6) 47 #define MX53_USB_CTRL_1_H3_XCVR_CLK_SEL_ULPI BIT(6) 48 #define MX53_USB_UH2_CTRL_OFFSET 0x14 49 #define MX53_USB_UH3_CTRL_OFFSET 0x18 50 #define MX53_USB_CLKONOFF_CTRL_OFFSET 0x24 51 #define MX53_USB_CLKONOFF_CTRL_H2_INT60CKOFF BIT(21) 52 #define MX53_USB_CLKONOFF_CTRL_H3_INT60CKOFF BIT(22) 53 #define MX53_BM_OVER_CUR_DIS_H1 BIT(5) 54 #define MX53_BM_OVER_CUR_DIS_OTG BIT(8) 55 #define MX53_BM_OVER_CUR_DIS_UHx BIT(30) 56 #define MX53_USB_CTRL_1_UH2_ULPI_EN BIT(26) 57 #define MX53_USB_CTRL_1_UH3_ULPI_EN BIT(27) 58 #define MX53_USB_UHx_CTRL_WAKE_UP_EN BIT(7) 59 #define MX53_USB_UHx_CTRL_ULPI_INT_EN BIT(8) 60 #define MX53_USB_PHYCTRL1_PLLDIV_MASK 0x3 61 #define MX53_USB_PLL_DIV_24_MHZ 0x01 62 63 #define MX6_BM_NON_BURST_SETTING BIT(1) 64 #define MX6_BM_OVER_CUR_DIS BIT(7) 65 #define MX6_BM_OVER_CUR_POLARITY BIT(8) 66 #define MX6_BM_WAKEUP_ENABLE BIT(10) 67 #define MX6_BM_ID_WAKEUP BIT(16) 68 #define MX6_BM_VBUS_WAKEUP BIT(17) 69 #define MX6SX_BM_DPDM_WAKEUP_EN BIT(29) 70 #define MX6_BM_WAKEUP_INTR BIT(31) 71 #define MX6_USB_OTG1_PHY_CTRL 0x18 72 /* For imx6dql, it is host-only controller, for later imx6, it is otg's */ 73 #define MX6_USB_OTG2_PHY_CTRL 0x1c 74 #define MX6SX_USB_VBUS_WAKEUP_SOURCE(v) (v << 8) 75 #define MX6SX_USB_VBUS_WAKEUP_SOURCE_VBUS MX6SX_USB_VBUS_WAKEUP_SOURCE(0) 76 #define MX6SX_USB_VBUS_WAKEUP_SOURCE_AVALID MX6SX_USB_VBUS_WAKEUP_SOURCE(1) 77 #define MX6SX_USB_VBUS_WAKEUP_SOURCE_BVALID MX6SX_USB_VBUS_WAKEUP_SOURCE(2) 78 #define MX6SX_USB_VBUS_WAKEUP_SOURCE_SESS_END MX6SX_USB_VBUS_WAKEUP_SOURCE(3) 79 80 #define VF610_OVER_CUR_DIS BIT(7) 81 82 #define MX7D_USBNC_USB_CTRL2 0x4 83 #define MX7D_USB_VBUS_WAKEUP_SOURCE_MASK 0x3 84 #define MX7D_USB_VBUS_WAKEUP_SOURCE(v) (v << 0) 85 #define MX7D_USB_VBUS_WAKEUP_SOURCE_VBUS MX7D_USB_VBUS_WAKEUP_SOURCE(0) 86 #define MX7D_USB_VBUS_WAKEUP_SOURCE_AVALID MX7D_USB_VBUS_WAKEUP_SOURCE(1) 87 #define MX7D_USB_VBUS_WAKEUP_SOURCE_BVALID MX7D_USB_VBUS_WAKEUP_SOURCE(2) 88 #define MX7D_USB_VBUS_WAKEUP_SOURCE_SESS_END MX7D_USB_VBUS_WAKEUP_SOURCE(3) 89 90 struct usbmisc_ops { 91 /* It's called once when probe a usb device */ 92 int (*init)(struct imx_usbmisc_data *data); 93 /* It's called once after adding a usb device */ 94 int (*post)(struct imx_usbmisc_data *data); 95 /* It's called when we need to enable/disable usb wakeup */ 96 int (*set_wakeup)(struct imx_usbmisc_data *data, bool enabled); 97 }; 98 99 struct imx_usbmisc { 100 void __iomem *base; 101 spinlock_t lock; 102 const struct usbmisc_ops *ops; 103 }; 104 105 static inline bool is_imx53_usbmisc(struct imx_usbmisc_data *data); 106 107 static int usbmisc_imx25_init(struct imx_usbmisc_data *data) 108 { 109 struct imx_usbmisc *usbmisc = dev_get_drvdata(data->dev); 110 unsigned long flags; 111 u32 val = 0; 112 113 if (data->index > 1) 114 return -EINVAL; 115 116 spin_lock_irqsave(&usbmisc->lock, flags); 117 switch (data->index) { 118 case 0: 119 val = readl(usbmisc->base); 120 val &= ~(MX25_OTG_SIC_MASK | MX25_OTG_PP_BIT); 121 val |= (MX25_EHCI_INTERFACE_DIFF_UNI & MX25_EHCI_INTERFACE_MASK) << MX25_OTG_SIC_SHIFT; 122 val |= (MX25_OTG_PM_BIT | MX25_OTG_OCPOL_BIT); 123 writel(val, usbmisc->base); 124 break; 125 case 1: 126 val = readl(usbmisc->base); 127 val &= ~(MX25_H1_SIC_MASK | MX25_H1_PP_BIT | MX25_H1_IPPUE_UP_BIT); 128 val |= (MX25_EHCI_INTERFACE_SINGLE_UNI & MX25_EHCI_INTERFACE_MASK) << MX25_H1_SIC_SHIFT; 129 val |= (MX25_H1_PM_BIT | MX25_H1_OCPOL_BIT | MX25_H1_TLL_BIT | 130 MX25_H1_USBTE_BIT | MX25_H1_IPPUE_DOWN_BIT); 131 132 writel(val, usbmisc->base); 133 134 break; 135 } 136 spin_unlock_irqrestore(&usbmisc->lock, flags); 137 138 return 0; 139 } 140 141 static int usbmisc_imx25_post(struct imx_usbmisc_data *data) 142 { 143 struct imx_usbmisc *usbmisc = dev_get_drvdata(data->dev); 144 void __iomem *reg; 145 unsigned long flags; 146 u32 val; 147 148 if (data->index > 2) 149 return -EINVAL; 150 151 if (data->index) 152 return 0; 153 154 spin_lock_irqsave(&usbmisc->lock, flags); 155 reg = usbmisc->base + MX25_USB_PHY_CTRL_OFFSET; 156 val = readl(reg); 157 158 if (data->evdo) 159 val |= MX25_BM_EXTERNAL_VBUS_DIVIDER; 160 else 161 val &= ~MX25_BM_EXTERNAL_VBUS_DIVIDER; 162 163 writel(val, reg); 164 spin_unlock_irqrestore(&usbmisc->lock, flags); 165 usleep_range(5000, 10000); /* needed to stabilize voltage */ 166 167 return 0; 168 } 169 170 static int usbmisc_imx27_init(struct imx_usbmisc_data *data) 171 { 172 struct imx_usbmisc *usbmisc = dev_get_drvdata(data->dev); 173 unsigned long flags; 174 u32 val; 175 176 switch (data->index) { 177 case 0: 178 val = MX27_OTG_PM_BIT; 179 break; 180 case 1: 181 val = MX27_H1_PM_BIT; 182 break; 183 case 2: 184 val = MX27_H2_PM_BIT; 185 break; 186 default: 187 return -EINVAL; 188 } 189 190 spin_lock_irqsave(&usbmisc->lock, flags); 191 if (data->disable_oc) 192 val = readl(usbmisc->base) | val; 193 else 194 val = readl(usbmisc->base) & ~val; 195 writel(val, usbmisc->base); 196 spin_unlock_irqrestore(&usbmisc->lock, flags); 197 198 return 0; 199 } 200 201 static int usbmisc_imx53_init(struct imx_usbmisc_data *data) 202 { 203 struct imx_usbmisc *usbmisc = dev_get_drvdata(data->dev); 204 void __iomem *reg = NULL; 205 unsigned long flags; 206 u32 val = 0; 207 208 if (data->index > 3) 209 return -EINVAL; 210 211 /* Select a 24 MHz reference clock for the PHY */ 212 val = readl(usbmisc->base + MX53_USB_OTG_PHY_CTRL_1_OFFSET); 213 val &= ~MX53_USB_PHYCTRL1_PLLDIV_MASK; 214 val |= MX53_USB_PLL_DIV_24_MHZ; 215 writel(val, usbmisc->base + MX53_USB_OTG_PHY_CTRL_1_OFFSET); 216 217 spin_lock_irqsave(&usbmisc->lock, flags); 218 219 switch (data->index) { 220 case 0: 221 if (data->disable_oc) { 222 reg = usbmisc->base + MX53_USB_OTG_PHY_CTRL_0_OFFSET; 223 val = readl(reg) | MX53_BM_OVER_CUR_DIS_OTG; 224 writel(val, reg); 225 } 226 break; 227 case 1: 228 if (data->disable_oc) { 229 reg = usbmisc->base + MX53_USB_OTG_PHY_CTRL_0_OFFSET; 230 val = readl(reg) | MX53_BM_OVER_CUR_DIS_H1; 231 writel(val, reg); 232 } 233 break; 234 case 2: 235 if (data->ulpi) { 236 /* set USBH2 into ULPI-mode. */ 237 reg = usbmisc->base + MX53_USB_CTRL_1_OFFSET; 238 val = readl(reg) | MX53_USB_CTRL_1_UH2_ULPI_EN; 239 /* select ULPI clock */ 240 val &= ~MX53_USB_CTRL_1_H2_XCVR_CLK_SEL_MASK; 241 val |= MX53_USB_CTRL_1_H2_XCVR_CLK_SEL_ULPI; 242 writel(val, reg); 243 /* Set interrupt wake up enable */ 244 reg = usbmisc->base + MX53_USB_UH2_CTRL_OFFSET; 245 val = readl(reg) | MX53_USB_UHx_CTRL_WAKE_UP_EN 246 | MX53_USB_UHx_CTRL_ULPI_INT_EN; 247 writel(val, reg); 248 if (is_imx53_usbmisc(data)) { 249 /* Disable internal 60Mhz clock */ 250 reg = usbmisc->base + 251 MX53_USB_CLKONOFF_CTRL_OFFSET; 252 val = readl(reg) | 253 MX53_USB_CLKONOFF_CTRL_H2_INT60CKOFF; 254 writel(val, reg); 255 } 256 257 } 258 if (data->disable_oc) { 259 reg = usbmisc->base + MX53_USB_UH2_CTRL_OFFSET; 260 val = readl(reg) | MX53_BM_OVER_CUR_DIS_UHx; 261 writel(val, reg); 262 } 263 break; 264 case 3: 265 if (data->ulpi) { 266 /* set USBH3 into ULPI-mode. */ 267 reg = usbmisc->base + MX53_USB_CTRL_1_OFFSET; 268 val = readl(reg) | MX53_USB_CTRL_1_UH3_ULPI_EN; 269 /* select ULPI clock */ 270 val &= ~MX53_USB_CTRL_1_H3_XCVR_CLK_SEL_MASK; 271 val |= MX53_USB_CTRL_1_H3_XCVR_CLK_SEL_ULPI; 272 writel(val, reg); 273 /* Set interrupt wake up enable */ 274 reg = usbmisc->base + MX53_USB_UH3_CTRL_OFFSET; 275 val = readl(reg) | MX53_USB_UHx_CTRL_WAKE_UP_EN 276 | MX53_USB_UHx_CTRL_ULPI_INT_EN; 277 writel(val, reg); 278 279 if (is_imx53_usbmisc(data)) { 280 /* Disable internal 60Mhz clock */ 281 reg = usbmisc->base + 282 MX53_USB_CLKONOFF_CTRL_OFFSET; 283 val = readl(reg) | 284 MX53_USB_CLKONOFF_CTRL_H3_INT60CKOFF; 285 writel(val, reg); 286 } 287 } 288 if (data->disable_oc) { 289 reg = usbmisc->base + MX53_USB_UH3_CTRL_OFFSET; 290 val = readl(reg) | MX53_BM_OVER_CUR_DIS_UHx; 291 writel(val, reg); 292 } 293 break; 294 } 295 296 spin_unlock_irqrestore(&usbmisc->lock, flags); 297 298 return 0; 299 } 300 301 static int usbmisc_imx6q_set_wakeup 302 (struct imx_usbmisc_data *data, bool enabled) 303 { 304 struct imx_usbmisc *usbmisc = dev_get_drvdata(data->dev); 305 unsigned long flags; 306 u32 val; 307 u32 wakeup_setting = (MX6_BM_WAKEUP_ENABLE | 308 MX6_BM_VBUS_WAKEUP | MX6_BM_ID_WAKEUP); 309 int ret = 0; 310 311 if (data->index > 3) 312 return -EINVAL; 313 314 spin_lock_irqsave(&usbmisc->lock, flags); 315 val = readl(usbmisc->base + data->index * 4); 316 if (enabled) { 317 val |= wakeup_setting; 318 } else { 319 if (val & MX6_BM_WAKEUP_INTR) 320 pr_debug("wakeup int at ci_hdrc.%d\n", data->index); 321 val &= ~wakeup_setting; 322 } 323 writel(val, usbmisc->base + data->index * 4); 324 spin_unlock_irqrestore(&usbmisc->lock, flags); 325 326 return ret; 327 } 328 329 static int usbmisc_imx6q_init(struct imx_usbmisc_data *data) 330 { 331 struct imx_usbmisc *usbmisc = dev_get_drvdata(data->dev); 332 unsigned long flags; 333 u32 reg; 334 335 if (data->index > 3) 336 return -EINVAL; 337 338 spin_lock_irqsave(&usbmisc->lock, flags); 339 340 reg = readl(usbmisc->base + data->index * 4); 341 if (data->disable_oc) { 342 reg |= MX6_BM_OVER_CUR_DIS; 343 } else if (data->oc_polarity == 1) { 344 /* High active */ 345 reg &= ~(MX6_BM_OVER_CUR_DIS | MX6_BM_OVER_CUR_POLARITY); 346 } else { 347 reg &= ~(MX6_BM_OVER_CUR_DIS); 348 } 349 writel(reg, usbmisc->base + data->index * 4); 350 351 /* SoC non-burst setting */ 352 reg = readl(usbmisc->base + data->index * 4); 353 writel(reg | MX6_BM_NON_BURST_SETTING, 354 usbmisc->base + data->index * 4); 355 356 spin_unlock_irqrestore(&usbmisc->lock, flags); 357 358 usbmisc_imx6q_set_wakeup(data, false); 359 360 return 0; 361 } 362 363 static int usbmisc_imx6sx_init(struct imx_usbmisc_data *data) 364 { 365 void __iomem *reg = NULL; 366 unsigned long flags; 367 struct imx_usbmisc *usbmisc = dev_get_drvdata(data->dev); 368 u32 val; 369 370 usbmisc_imx6q_init(data); 371 372 if (data->index == 0 || data->index == 1) { 373 reg = usbmisc->base + MX6_USB_OTG1_PHY_CTRL + data->index * 4; 374 spin_lock_irqsave(&usbmisc->lock, flags); 375 /* Set vbus wakeup source as bvalid */ 376 val = readl(reg); 377 writel(val | MX6SX_USB_VBUS_WAKEUP_SOURCE_BVALID, reg); 378 /* 379 * Disable dp/dm wakeup in device mode when vbus is 380 * not there. 381 */ 382 val = readl(usbmisc->base + data->index * 4); 383 writel(val & ~MX6SX_BM_DPDM_WAKEUP_EN, 384 usbmisc->base + data->index * 4); 385 spin_unlock_irqrestore(&usbmisc->lock, flags); 386 } 387 388 return 0; 389 } 390 391 static int usbmisc_vf610_init(struct imx_usbmisc_data *data) 392 { 393 struct imx_usbmisc *usbmisc = dev_get_drvdata(data->dev); 394 u32 reg; 395 396 /* 397 * Vybrid only has one misc register set, but in two different 398 * areas. These is reflected in two instances of this driver. 399 */ 400 if (data->index >= 1) 401 return -EINVAL; 402 403 if (data->disable_oc) { 404 reg = readl(usbmisc->base); 405 writel(reg | VF610_OVER_CUR_DIS, usbmisc->base); 406 } 407 408 return 0; 409 } 410 411 static int usbmisc_imx7d_set_wakeup 412 (struct imx_usbmisc_data *data, bool enabled) 413 { 414 struct imx_usbmisc *usbmisc = dev_get_drvdata(data->dev); 415 unsigned long flags; 416 u32 val; 417 u32 wakeup_setting = (MX6_BM_WAKEUP_ENABLE | 418 MX6_BM_VBUS_WAKEUP | MX6_BM_ID_WAKEUP); 419 420 spin_lock_irqsave(&usbmisc->lock, flags); 421 val = readl(usbmisc->base); 422 if (enabled) { 423 writel(val | wakeup_setting, usbmisc->base); 424 } else { 425 if (val & MX6_BM_WAKEUP_INTR) 426 dev_dbg(data->dev, "wakeup int\n"); 427 writel(val & ~wakeup_setting, usbmisc->base); 428 } 429 spin_unlock_irqrestore(&usbmisc->lock, flags); 430 431 return 0; 432 } 433 434 static int usbmisc_imx7d_init(struct imx_usbmisc_data *data) 435 { 436 struct imx_usbmisc *usbmisc = dev_get_drvdata(data->dev); 437 unsigned long flags; 438 u32 reg; 439 440 if (data->index >= 1) 441 return -EINVAL; 442 443 spin_lock_irqsave(&usbmisc->lock, flags); 444 reg = readl(usbmisc->base); 445 if (data->disable_oc) { 446 reg |= MX6_BM_OVER_CUR_DIS; 447 } else if (data->oc_polarity == 1) { 448 /* High active */ 449 reg &= ~(MX6_BM_OVER_CUR_DIS | MX6_BM_OVER_CUR_POLARITY); 450 } 451 writel(reg, usbmisc->base); 452 453 reg = readl(usbmisc->base + MX7D_USBNC_USB_CTRL2); 454 reg &= ~MX7D_USB_VBUS_WAKEUP_SOURCE_MASK; 455 writel(reg | MX7D_USB_VBUS_WAKEUP_SOURCE_BVALID, 456 usbmisc->base + MX7D_USBNC_USB_CTRL2); 457 spin_unlock_irqrestore(&usbmisc->lock, flags); 458 459 usbmisc_imx7d_set_wakeup(data, false); 460 461 return 0; 462 } 463 464 static const struct usbmisc_ops imx25_usbmisc_ops = { 465 .init = usbmisc_imx25_init, 466 .post = usbmisc_imx25_post, 467 }; 468 469 static const struct usbmisc_ops imx27_usbmisc_ops = { 470 .init = usbmisc_imx27_init, 471 }; 472 473 static const struct usbmisc_ops imx51_usbmisc_ops = { 474 .init = usbmisc_imx53_init, 475 }; 476 477 static const struct usbmisc_ops imx53_usbmisc_ops = { 478 .init = usbmisc_imx53_init, 479 }; 480 481 static const struct usbmisc_ops imx6q_usbmisc_ops = { 482 .set_wakeup = usbmisc_imx6q_set_wakeup, 483 .init = usbmisc_imx6q_init, 484 }; 485 486 static const struct usbmisc_ops vf610_usbmisc_ops = { 487 .init = usbmisc_vf610_init, 488 }; 489 490 static const struct usbmisc_ops imx6sx_usbmisc_ops = { 491 .set_wakeup = usbmisc_imx6q_set_wakeup, 492 .init = usbmisc_imx6sx_init, 493 }; 494 495 static const struct usbmisc_ops imx7d_usbmisc_ops = { 496 .init = usbmisc_imx7d_init, 497 .set_wakeup = usbmisc_imx7d_set_wakeup, 498 }; 499 500 static inline bool is_imx53_usbmisc(struct imx_usbmisc_data *data) 501 { 502 struct imx_usbmisc *usbmisc = dev_get_drvdata(data->dev); 503 504 return usbmisc->ops == &imx53_usbmisc_ops; 505 } 506 507 int imx_usbmisc_init(struct imx_usbmisc_data *data) 508 { 509 struct imx_usbmisc *usbmisc; 510 511 if (!data) 512 return 0; 513 514 usbmisc = dev_get_drvdata(data->dev); 515 if (!usbmisc->ops->init) 516 return 0; 517 return usbmisc->ops->init(data); 518 } 519 EXPORT_SYMBOL_GPL(imx_usbmisc_init); 520 521 int imx_usbmisc_init_post(struct imx_usbmisc_data *data) 522 { 523 struct imx_usbmisc *usbmisc; 524 525 if (!data) 526 return 0; 527 528 usbmisc = dev_get_drvdata(data->dev); 529 if (!usbmisc->ops->post) 530 return 0; 531 return usbmisc->ops->post(data); 532 } 533 EXPORT_SYMBOL_GPL(imx_usbmisc_init_post); 534 535 int imx_usbmisc_set_wakeup(struct imx_usbmisc_data *data, bool enabled) 536 { 537 struct imx_usbmisc *usbmisc; 538 539 if (!data) 540 return 0; 541 542 usbmisc = dev_get_drvdata(data->dev); 543 if (!usbmisc->ops->set_wakeup) 544 return 0; 545 return usbmisc->ops->set_wakeup(data, enabled); 546 } 547 EXPORT_SYMBOL_GPL(imx_usbmisc_set_wakeup); 548 549 static const struct of_device_id usbmisc_imx_dt_ids[] = { 550 { 551 .compatible = "fsl,imx25-usbmisc", 552 .data = &imx25_usbmisc_ops, 553 }, 554 { 555 .compatible = "fsl,imx35-usbmisc", 556 .data = &imx25_usbmisc_ops, 557 }, 558 { 559 .compatible = "fsl,imx27-usbmisc", 560 .data = &imx27_usbmisc_ops, 561 }, 562 { 563 .compatible = "fsl,imx51-usbmisc", 564 .data = &imx51_usbmisc_ops, 565 }, 566 { 567 .compatible = "fsl,imx53-usbmisc", 568 .data = &imx53_usbmisc_ops, 569 }, 570 { 571 .compatible = "fsl,imx6q-usbmisc", 572 .data = &imx6q_usbmisc_ops, 573 }, 574 { 575 .compatible = "fsl,vf610-usbmisc", 576 .data = &vf610_usbmisc_ops, 577 }, 578 { 579 .compatible = "fsl,imx6sx-usbmisc", 580 .data = &imx6sx_usbmisc_ops, 581 }, 582 { 583 .compatible = "fsl,imx6ul-usbmisc", 584 .data = &imx6sx_usbmisc_ops, 585 }, 586 { 587 .compatible = "fsl,imx7d-usbmisc", 588 .data = &imx7d_usbmisc_ops, 589 }, 590 { /* sentinel */ } 591 }; 592 MODULE_DEVICE_TABLE(of, usbmisc_imx_dt_ids); 593 594 static int usbmisc_imx_probe(struct platform_device *pdev) 595 { 596 struct resource *res; 597 struct imx_usbmisc *data; 598 const struct of_device_id *of_id; 599 600 of_id = of_match_device(usbmisc_imx_dt_ids, &pdev->dev); 601 if (!of_id) 602 return -ENODEV; 603 604 data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL); 605 if (!data) 606 return -ENOMEM; 607 608 spin_lock_init(&data->lock); 609 610 res = platform_get_resource(pdev, IORESOURCE_MEM, 0); 611 data->base = devm_ioremap_resource(&pdev->dev, res); 612 if (IS_ERR(data->base)) 613 return PTR_ERR(data->base); 614 615 data->ops = (const struct usbmisc_ops *)of_id->data; 616 platform_set_drvdata(pdev, data); 617 618 return 0; 619 } 620 621 static int usbmisc_imx_remove(struct platform_device *pdev) 622 { 623 return 0; 624 } 625 626 static struct platform_driver usbmisc_imx_driver = { 627 .probe = usbmisc_imx_probe, 628 .remove = usbmisc_imx_remove, 629 .driver = { 630 .name = "usbmisc_imx", 631 .of_match_table = usbmisc_imx_dt_ids, 632 }, 633 }; 634 635 module_platform_driver(usbmisc_imx_driver); 636 637 MODULE_ALIAS("platform:usbmisc-imx"); 638 MODULE_LICENSE("GPL"); 639 MODULE_DESCRIPTION("driver for imx usb non-core registers"); 640 MODULE_AUTHOR("Richard Zhao <richard.zhao@freescale.com>"); 641