1 /* 2 * R8A66597 HCD (Host Controller Driver) for u-boot 3 * 4 * Copyright (C) 2008 Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> 5 * 6 * SPDX-License-Identifier: GPL-2.0 7 */ 8 9 #include <common.h> 10 #include <console.h> 11 #include <dm.h> 12 #include <usb.h> 13 #include <asm/io.h> 14 #include <linux/iopoll.h> 15 #include <power/regulator.h> 16 17 #include "r8a66597.h" 18 19 #ifdef R8A66597_DEBUG 20 #define R8A66597_DPRINT printf 21 #else 22 #define R8A66597_DPRINT(...) 23 #endif 24 25 static inline struct usb_device *usb_dev_get_parent(struct usb_device *udev) 26 { 27 struct udevice *parent = udev->dev->parent; 28 29 /* 30 * When called from usb-uclass.c: usb_scan_device() udev->dev points 31 * to the parent udevice, not the actual udevice belonging to the 32 * udev as the device is not instantiated yet. 33 * 34 * If dev is an usb-bus, then we are called from usb_scan_device() for 35 * an usb-device plugged directly into the root port, return NULL. 36 */ 37 if (device_get_uclass_id(udev->dev) == UCLASS_USB) 38 return NULL; 39 40 /* 41 * If these 2 are not the same we are being called from 42 * usb_scan_device() and udev itself is the parent. 43 */ 44 if (dev_get_parent_priv(udev->dev) != udev) 45 return udev; 46 47 /* We are being called normally, use the parent pointer */ 48 if (device_get_uclass_id(parent) == UCLASS_USB_HUB) 49 return dev_get_parent_priv(parent); 50 51 return NULL; 52 } 53 54 static void get_hub_data(struct usb_device *dev, u16 *hub_devnum, u16 *hubport) 55 { 56 struct usb_device *parent = usb_dev_get_parent(dev); 57 58 *hub_devnum = 0; 59 *hubport = 0; 60 61 /* check a device connected to root_hub */ 62 if ((parent && parent->devnum == 1) || 63 dev->devnum == 1) 64 return; 65 66 *hub_devnum = (u8)parent->devnum; 67 *hubport = parent->portnr - 1; 68 } 69 70 static void set_devadd(struct r8a66597 *r8a66597, u8 r8a66597_address, 71 struct usb_device *dev, int port) 72 { 73 u16 val, usbspd, upphub, hubport; 74 unsigned long devadd_reg = get_devadd_addr(r8a66597_address); 75 76 get_hub_data(dev, &upphub, &hubport); 77 usbspd = r8a66597->speed; 78 val = (upphub << 11) | (hubport << 8) | (usbspd << 6) | (port & 0x0001); 79 r8a66597_write(r8a66597, val, devadd_reg); 80 } 81 82 static int r8a66597_clock_enable(struct r8a66597 *r8a66597) 83 { 84 u16 tmp; 85 int i = 0; 86 87 do { 88 r8a66597_write(r8a66597, USBE, SYSCFG0); 89 tmp = r8a66597_read(r8a66597, SYSCFG0); 90 if (i++ > 1000) { 91 printf("register access fail.\n"); 92 return -1; 93 } 94 } while ((tmp & USBE) != USBE); 95 r8a66597_bclr(r8a66597, USBE, SYSCFG0); 96 /* 97 * RZ/A Only: 98 * Bits XTAL(UCKSEL) and UPLLE in SYSCFG0 for USB0 controls both USB0 99 * and USB1, so we must always set the USB0 register 100 */ 101 #if (CONFIG_R8A66597_XTAL == 1) 102 setbits(le16, R8A66597_BASE0, XTAL); 103 #endif 104 mdelay(1); 105 setbits(le16, R8A66597_BASE0, UPLLE); 106 mdelay(1); 107 r8a66597_bset(r8a66597, SUSPM, SUSPMODE0); 108 109 return 0; 110 } 111 112 static void r8a66597_clock_disable(struct r8a66597 *r8a66597) 113 { 114 r8a66597_bclr(r8a66597, SUSPM, SUSPMODE0); 115 116 clrbits(le16, R8A66597_BASE0, UPLLE); 117 mdelay(1); 118 r8a66597_bclr(r8a66597, USBE, SYSCFG0); 119 mdelay(1); 120 } 121 122 static void r8a66597_enable_port(struct r8a66597 *r8a66597, int port) 123 { 124 u16 val; 125 126 val = port ? DRPD : DCFM | DRPD; 127 r8a66597_bset(r8a66597, val, get_syscfg_reg(port)); 128 r8a66597_bset(r8a66597, HSE, get_syscfg_reg(port)); 129 } 130 131 static void r8a66597_disable_port(struct r8a66597 *r8a66597, int port) 132 { 133 u16 val, tmp; 134 135 r8a66597_write(r8a66597, 0, get_intenb_reg(port)); 136 r8a66597_write(r8a66597, 0, get_intsts_reg(port)); 137 138 r8a66597_port_power(r8a66597, port, 0); 139 140 do { 141 tmp = r8a66597_read(r8a66597, SOFCFG) & EDGESTS; 142 udelay(640); 143 } while (tmp == EDGESTS); 144 145 val = port ? DRPD : DCFM | DRPD; 146 r8a66597_bclr(r8a66597, val, get_syscfg_reg(port)); 147 r8a66597_bclr(r8a66597, HSE, get_syscfg_reg(port)); 148 } 149 150 static int enable_controller(struct r8a66597 *r8a66597) 151 { 152 int ret, port; 153 154 ret = r8a66597_clock_enable(r8a66597); 155 if (ret < 0) 156 return ret; 157 158 r8a66597_bset(r8a66597, USBE, SYSCFG0); 159 160 r8a66597_bset(r8a66597, INTL, SOFCFG); 161 r8a66597_write(r8a66597, 0, INTENB0); 162 for (port = 0; port < R8A66597_MAX_ROOT_HUB; port++) 163 r8a66597_write(r8a66597, 0, get_intenb_reg(port)); 164 165 r8a66597_bclr(r8a66597, BIGEND, CFIFOSEL); 166 r8a66597_bclr(r8a66597, BIGEND, D0FIFOSEL); 167 r8a66597_bclr(r8a66597, BIGEND, D1FIFOSEL); 168 r8a66597_bset(r8a66597, TRNENSEL, SOFCFG); 169 170 for (port = 0; port < R8A66597_MAX_ROOT_HUB; port++) 171 r8a66597_enable_port(r8a66597, port); 172 173 return 0; 174 } 175 176 static void disable_controller(struct r8a66597 *r8a66597) 177 { 178 int i; 179 180 if (!(r8a66597_read(r8a66597, SYSCFG0) & USBE)) 181 return; 182 183 r8a66597_write(r8a66597, 0, INTENB0); 184 r8a66597_write(r8a66597, 0, INTSTS0); 185 186 r8a66597_write(r8a66597, 0, D0FIFOSEL); 187 r8a66597_write(r8a66597, 0, D1FIFOSEL); 188 r8a66597_write(r8a66597, 0, DCPCFG); 189 r8a66597_write(r8a66597, 0x40, DCPMAXP); 190 r8a66597_write(r8a66597, 0, DCPCTR); 191 192 for (i = 0; i <= 10; i++) 193 r8a66597_write(r8a66597, 0, get_devadd_addr(i)); 194 for (i = 1; i <= 5; i++) { 195 r8a66597_write(r8a66597, 0, get_pipetre_addr(i)); 196 r8a66597_write(r8a66597, 0, get_pipetrn_addr(i)); 197 } 198 for (i = 1; i < R8A66597_MAX_NUM_PIPE; i++) { 199 r8a66597_write(r8a66597, 0, get_pipectr_addr(i)); 200 r8a66597_write(r8a66597, i, PIPESEL); 201 r8a66597_write(r8a66597, 0, PIPECFG); 202 r8a66597_write(r8a66597, 0, PIPEBUF); 203 r8a66597_write(r8a66597, 0, PIPEMAXP); 204 r8a66597_write(r8a66597, 0, PIPEPERI); 205 } 206 207 for (i = 0; i < R8A66597_MAX_ROOT_HUB; i++) 208 r8a66597_disable_port(r8a66597, i); 209 210 r8a66597_clock_disable(r8a66597); 211 } 212 213 static void r8a66597_reg_wait(struct r8a66597 *r8a66597, unsigned long reg, 214 u16 mask, u16 loop) 215 { 216 u16 tmp; 217 int i = 0; 218 219 do { 220 tmp = r8a66597_read(r8a66597, reg); 221 if (i++ > 1000000) { 222 printf("register%lx, loop %x is timeout\n", reg, loop); 223 break; 224 } 225 } while ((tmp & mask) != loop); 226 } 227 228 static void pipe_buffer_setting(struct r8a66597 *r8a66597, 229 struct usb_device *dev, unsigned long pipe) 230 { 231 u16 val = 0; 232 u16 pipenum, bufnum, maxpacket; 233 234 if (usb_pipein(pipe)) { 235 pipenum = BULK_IN_PIPENUM; 236 bufnum = BULK_IN_BUFNUM; 237 maxpacket = dev->epmaxpacketin[usb_pipeendpoint(pipe)]; 238 } else { 239 pipenum = BULK_OUT_PIPENUM; 240 bufnum = BULK_OUT_BUFNUM; 241 maxpacket = dev->epmaxpacketout[usb_pipeendpoint(pipe)]; 242 } 243 244 if (r8a66597->pipe_config & (1 << pipenum)) 245 return; 246 r8a66597->pipe_config |= (1 << pipenum); 247 248 r8a66597_bset(r8a66597, ACLRM, get_pipectr_addr(pipenum)); 249 r8a66597_bclr(r8a66597, ACLRM, get_pipectr_addr(pipenum)); 250 r8a66597_write(r8a66597, pipenum, PIPESEL); 251 252 /* FIXME: This driver support bulk transfer only. */ 253 if (!usb_pipein(pipe)) 254 val |= R8A66597_DIR; 255 else 256 val |= R8A66597_SHTNAK; 257 val |= R8A66597_BULK | R8A66597_DBLB | usb_pipeendpoint(pipe); 258 r8a66597_write(r8a66597, val, PIPECFG); 259 260 r8a66597_write(r8a66597, (8 << 10) | bufnum, PIPEBUF); 261 r8a66597_write(r8a66597, make_devsel(usb_pipedevice(pipe)) | 262 maxpacket, PIPEMAXP); 263 r8a66597_write(r8a66597, 0, PIPEPERI); 264 r8a66597_write(r8a66597, SQCLR, get_pipectr_addr(pipenum)); 265 } 266 267 static int send_setup_packet(struct r8a66597 *r8a66597, struct usb_device *dev, 268 struct devrequest *setup) 269 { 270 int i; 271 unsigned short *p = (unsigned short *)setup; 272 unsigned long setup_addr = USBREQ; 273 u16 intsts1; 274 int timeout = 3000; 275 u16 dcpctr; 276 u16 devsel = setup->request == USB_REQ_SET_ADDRESS ? 0 : dev->devnum; 277 278 r8a66597_write(r8a66597, make_devsel(devsel) | 279 (8 << dev->maxpacketsize), DCPMAXP); 280 r8a66597_write(r8a66597, ~(SIGN | SACK), INTSTS1); 281 282 dcpctr = r8a66597_read(r8a66597, DCPCTR); 283 if ((dcpctr & PID) == PID_BUF) { 284 if (readw_poll_timeout(r8a66597->reg + DCPCTR, dcpctr, 285 dcpctr & BSTS, 1000) < 0) { 286 printf("DCPCTR BSTS timeout!\n"); 287 return -ETIMEDOUT; 288 } 289 } 290 291 for (i = 0; i < 4; i++) { 292 r8a66597_write(r8a66597, le16_to_cpu(p[i]), setup_addr); 293 setup_addr += 2; 294 } 295 r8a66597_write(r8a66597, ~0x0001, BRDYSTS); 296 r8a66597_write(r8a66597, SUREQ, DCPCTR); 297 298 while (1) { 299 intsts1 = r8a66597_read(r8a66597, INTSTS1); 300 if (intsts1 & SACK) 301 break; 302 if (intsts1 & SIGN) { 303 printf("setup packet send error\n"); 304 return -1; 305 } 306 if (timeout-- < 0) { 307 printf("setup packet timeout\n"); 308 return -1; 309 } 310 udelay(500); 311 } 312 313 return 0; 314 } 315 316 static int send_bulk_packet(struct r8a66597 *r8a66597, struct usb_device *dev, 317 unsigned long pipe, void *buffer, int transfer_len) 318 { 319 u16 tmp, bufsize; 320 u16 *buf; 321 size_t size; 322 323 R8A66597_DPRINT("%s\n", __func__); 324 325 r8a66597_mdfy(r8a66597, MBW | BULK_OUT_PIPENUM, 326 MBW | CURPIPE, CFIFOSEL); 327 r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, BULK_OUT_PIPENUM); 328 tmp = r8a66597_read(r8a66597, CFIFOCTR); 329 if ((tmp & FRDY) == 0) { 330 printf("%s FRDY is not set (%x)\n", __func__, tmp); 331 return -1; 332 } 333 334 /* prepare parameters */ 335 bufsize = dev->epmaxpacketout[usb_pipeendpoint(pipe)]; 336 buf = (u16 *)(buffer + dev->act_len); 337 size = min((int)bufsize, transfer_len - dev->act_len); 338 339 /* write fifo */ 340 r8a66597_write(r8a66597, ~(1 << BULK_OUT_PIPENUM), BEMPSTS); 341 if (buffer) { 342 r8a66597_write_fifo(r8a66597, CFIFO, buf, size); 343 r8a66597_write(r8a66597, BVAL, CFIFOCTR); 344 } 345 346 /* update parameters */ 347 dev->act_len += size; 348 349 r8a66597_mdfy(r8a66597, PID_BUF, PID, 350 get_pipectr_addr(BULK_OUT_PIPENUM)); 351 352 while (!(r8a66597_read(r8a66597, BEMPSTS) & (1 << BULK_OUT_PIPENUM))) 353 if (ctrlc()) 354 return -1; 355 r8a66597_write(r8a66597, ~(1 << BULK_OUT_PIPENUM), BEMPSTS); 356 357 if (dev->act_len >= transfer_len) 358 r8a66597_mdfy(r8a66597, PID_NAK, PID, 359 get_pipectr_addr(BULK_OUT_PIPENUM)); 360 361 return 0; 362 } 363 364 static int receive_bulk_packet(struct r8a66597 *r8a66597, 365 struct usb_device *dev, 366 unsigned long pipe, 367 void *buffer, int transfer_len) 368 { 369 u16 tmp; 370 u16 *buf; 371 const u16 pipenum = BULK_IN_PIPENUM; 372 int rcv_len; 373 int maxpacket = dev->epmaxpacketin[usb_pipeendpoint(pipe)]; 374 375 R8A66597_DPRINT("%s\n", __func__); 376 377 /* prepare */ 378 if (dev->act_len == 0) { 379 r8a66597_mdfy(r8a66597, PID_NAK, PID, 380 get_pipectr_addr(pipenum)); 381 r8a66597_write(r8a66597, ~(1 << pipenum), BRDYSTS); 382 383 r8a66597_write(r8a66597, TRCLR, get_pipetre_addr(pipenum)); 384 r8a66597_write(r8a66597, 385 (transfer_len + maxpacket - 1) / maxpacket, 386 get_pipetrn_addr(pipenum)); 387 r8a66597_bset(r8a66597, TRENB, get_pipetre_addr(pipenum)); 388 389 r8a66597_mdfy(r8a66597, PID_BUF, PID, 390 get_pipectr_addr(pipenum)); 391 } 392 393 r8a66597_mdfy(r8a66597, MBW | pipenum, MBW | CURPIPE, CFIFOSEL); 394 r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, pipenum); 395 396 while (!(r8a66597_read(r8a66597, BRDYSTS) & (1 << pipenum))) 397 if (ctrlc()) 398 return -1; 399 r8a66597_write(r8a66597, ~(1 << pipenum), BRDYSTS); 400 401 tmp = r8a66597_read(r8a66597, CFIFOCTR); 402 if ((tmp & FRDY) == 0) { 403 printf("%s FRDY is not set. (%x)\n", __func__, tmp); 404 return -1; 405 } 406 407 buf = (u16 *)(buffer + dev->act_len); 408 rcv_len = tmp & DTLN; 409 dev->act_len += rcv_len; 410 411 if (buffer) { 412 if (rcv_len == 0) 413 r8a66597_write(r8a66597, BCLR, CFIFOCTR); 414 else 415 r8a66597_read_fifo(r8a66597, CFIFO, buf, rcv_len); 416 } 417 418 return 0; 419 } 420 421 static int receive_control_packet(struct r8a66597 *r8a66597, 422 struct usb_device *dev, 423 void *buffer, int transfer_len) 424 { 425 u16 tmp; 426 int rcv_len; 427 428 /* FIXME: limit transfer size : 64byte or less */ 429 430 r8a66597_bclr(r8a66597, R8A66597_DIR, DCPCFG); 431 r8a66597_mdfy(r8a66597, 0, ISEL | CURPIPE, CFIFOSEL); 432 r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0); 433 r8a66597_bset(r8a66597, SQSET, DCPCTR); 434 r8a66597_write(r8a66597, BCLR, CFIFOCTR); 435 r8a66597_mdfy(r8a66597, PID_BUF, PID, DCPCTR); 436 437 while (!(r8a66597_read(r8a66597, BRDYSTS) & 0x0001)) 438 if (ctrlc()) 439 return -1; 440 r8a66597_write(r8a66597, ~0x0001, BRDYSTS); 441 442 r8a66597_mdfy(r8a66597, MBW, MBW | CURPIPE, CFIFOSEL); 443 r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0); 444 445 tmp = r8a66597_read(r8a66597, CFIFOCTR); 446 if ((tmp & FRDY) == 0) { 447 printf("%s FRDY is not set. (%x)\n", __func__, tmp); 448 return -1; 449 } 450 451 rcv_len = tmp & DTLN; 452 dev->act_len += rcv_len; 453 454 r8a66597_mdfy(r8a66597, PID_NAK, PID, DCPCTR); 455 456 if (buffer) { 457 if (rcv_len == 0) 458 r8a66597_write(r8a66597, BCLR, DCPCTR); 459 else 460 r8a66597_read_fifo(r8a66597, CFIFO, buffer, rcv_len); 461 } 462 463 return 0; 464 } 465 466 static int send_status_packet(struct r8a66597 *r8a66597, 467 unsigned long pipe) 468 { 469 r8a66597_bset(r8a66597, SQSET, DCPCTR); 470 r8a66597_mdfy(r8a66597, PID_NAK, PID, DCPCTR); 471 472 if (usb_pipein(pipe)) { 473 r8a66597_bset(r8a66597, R8A66597_DIR, DCPCFG); 474 r8a66597_mdfy(r8a66597, ISEL, ISEL | CURPIPE, CFIFOSEL); 475 r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0); 476 r8a66597_write(r8a66597, ~BEMP0, BEMPSTS); 477 r8a66597_write(r8a66597, BCLR | BVAL, CFIFOCTR); 478 } else { 479 r8a66597_bclr(r8a66597, R8A66597_DIR, DCPCFG); 480 r8a66597_mdfy(r8a66597, 0, ISEL | CURPIPE, CFIFOSEL); 481 r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0); 482 r8a66597_write(r8a66597, BCLR, CFIFOCTR); 483 } 484 r8a66597_mdfy(r8a66597, PID_BUF, PID, DCPCTR); 485 486 while (!(r8a66597_read(r8a66597, BEMPSTS) & 0x0001)) 487 if (ctrlc()) 488 return -1; 489 490 return 0; 491 } 492 493 static void r8a66597_check_syssts(struct r8a66597 *r8a66597, int port) 494 { 495 int count = R8A66597_MAX_SAMPLING; 496 unsigned short syssts, old_syssts; 497 498 R8A66597_DPRINT("%s\n", __func__); 499 500 old_syssts = r8a66597_read(r8a66597, get_syssts_reg(port) & LNST); 501 while (count > 0) { 502 mdelay(R8A66597_RH_POLL_TIME); 503 504 syssts = r8a66597_read(r8a66597, get_syssts_reg(port) & LNST); 505 if (syssts == old_syssts) { 506 count--; 507 } else { 508 count = R8A66597_MAX_SAMPLING; 509 old_syssts = syssts; 510 } 511 } 512 } 513 514 static void r8a66597_bus_reset(struct r8a66597 *r8a66597, int port) 515 { 516 mdelay(10); 517 r8a66597_mdfy(r8a66597, USBRST, USBRST | UACT, get_dvstctr_reg(port)); 518 mdelay(50); 519 r8a66597_mdfy(r8a66597, UACT, USBRST | UACT, get_dvstctr_reg(port)); 520 mdelay(50); 521 } 522 523 static int check_usb_device_connecting(struct r8a66597 *r8a66597) 524 { 525 int timeout = 10000; /* 100usec * 10000 = 1sec */ 526 int i; 527 528 for (i = 0; i < 5; i++) { 529 /* check a usb cable connect */ 530 while (!(r8a66597_read(r8a66597, INTSTS1) & ATTCH)) { 531 if (timeout-- < 0) { 532 printf("%s timeout.\n", __func__); 533 return -1; 534 } 535 udelay(100); 536 } 537 538 /* check a data line */ 539 r8a66597_check_syssts(r8a66597, 0); 540 541 r8a66597_bus_reset(r8a66597, 0); 542 r8a66597->speed = get_rh_usb_speed(r8a66597, 0); 543 544 if (!(r8a66597_read(r8a66597, INTSTS1) & DTCH)) { 545 r8a66597->port_change = USB_PORT_STAT_C_CONNECTION; 546 r8a66597->port_status = USB_PORT_STAT_CONNECTION | 547 USB_PORT_STAT_ENABLE; 548 return 0; /* success */ 549 } 550 551 R8A66597_DPRINT("USB device has detached. retry = %d\n", i); 552 r8a66597_write(r8a66597, ~DTCH, INTSTS1); 553 } 554 555 return -1; /* fail */ 556 } 557 558 /* Virtual Root Hub */ 559 560 #include <usbroothubdes.h> 561 562 static int r8a66597_submit_rh_msg(struct udevice *udev, struct usb_device *dev, 563 unsigned long pipe, void *buffer, 564 int transfer_len, struct devrequest *cmd) 565 { 566 struct r8a66597 *r8a66597 = dev_get_priv(udev); 567 int leni = transfer_len; 568 int len = 0; 569 int stat = 0; 570 __u16 bmRType_bReq; 571 __u16 wValue; 572 __u16 wLength; 573 unsigned char data[32]; 574 575 R8A66597_DPRINT("%s\n", __func__); 576 577 if (usb_pipeint(pipe)) { 578 printf("Root-Hub submit IRQ: NOT implemented"); 579 return 0; 580 } 581 582 bmRType_bReq = cmd->requesttype | (cmd->request << 8); 583 wValue = cpu_to_le16 (cmd->value); 584 wLength = cpu_to_le16 (cmd->length); 585 586 switch (bmRType_bReq) { 587 case RH_GET_STATUS: 588 *(__u16 *)buffer = cpu_to_le16(1); 589 len = 2; 590 break; 591 case RH_GET_STATUS | RH_INTERFACE: 592 *(__u16 *)buffer = cpu_to_le16(0); 593 len = 2; 594 break; 595 case RH_GET_STATUS | RH_ENDPOINT: 596 *(__u16 *)buffer = cpu_to_le16(0); 597 len = 2; 598 break; 599 case RH_GET_STATUS | RH_CLASS: 600 *(__u32 *)buffer = cpu_to_le32(0); 601 len = 4; 602 break; 603 case RH_GET_STATUS | RH_OTHER | RH_CLASS: 604 *(__u32 *)buffer = cpu_to_le32(r8a66597->port_status | 605 (r8a66597->port_change << 16)); 606 len = 4; 607 break; 608 case RH_CLEAR_FEATURE | RH_ENDPOINT: 609 case RH_CLEAR_FEATURE | RH_CLASS: 610 break; 611 612 case RH_CLEAR_FEATURE | RH_OTHER | RH_CLASS: 613 switch (wValue) { 614 case RH_C_PORT_CONNECTION: 615 r8a66597->port_change &= ~USB_PORT_STAT_C_CONNECTION; 616 break; 617 } 618 break; 619 620 case RH_SET_FEATURE | RH_OTHER | RH_CLASS: 621 switch (wValue) { 622 case (RH_PORT_SUSPEND): 623 break; 624 case (RH_PORT_RESET): 625 r8a66597_bus_reset(r8a66597, 0); 626 break; 627 case (RH_PORT_POWER): 628 break; 629 case (RH_PORT_ENABLE): 630 break; 631 } 632 break; 633 case RH_SET_ADDRESS: 634 r8a66597->rh_devnum = wValue; 635 break; 636 case RH_GET_DESCRIPTOR: 637 switch ((wValue & 0xff00) >> 8) { 638 case (0x01): /* device descriptor */ 639 len = min_t(unsigned int, 640 leni, 641 min_t(unsigned int, 642 sizeof(root_hub_dev_des), 643 wLength)); 644 memcpy(buffer, root_hub_dev_des, len); 645 break; 646 case (0x02): /* configuration descriptor */ 647 len = min_t(unsigned int, 648 leni, 649 min_t(unsigned int, 650 sizeof(root_hub_config_des), 651 wLength)); 652 memcpy(buffer, root_hub_config_des, len); 653 break; 654 case (0x03): /* string descriptors */ 655 if (wValue == 0x0300) { 656 len = min_t(unsigned int, 657 leni, 658 min_t(unsigned int, 659 sizeof(root_hub_str_index0), 660 wLength)); 661 memcpy(buffer, root_hub_str_index0, len); 662 } 663 if (wValue == 0x0301) { 664 len = min_t(unsigned int, 665 leni, 666 min_t(unsigned int, 667 sizeof(root_hub_str_index1), 668 wLength)); 669 memcpy(buffer, root_hub_str_index1, len); 670 } 671 break; 672 default: 673 stat = USB_ST_STALLED; 674 } 675 break; 676 677 case RH_GET_DESCRIPTOR | RH_CLASS: 678 { 679 __u32 temp = 0x00000001; 680 681 data[0] = 9; /* min length; */ 682 data[1] = 0x29; 683 data[2] = temp & RH_A_NDP; 684 data[3] = 0; 685 if (temp & RH_A_PSM) 686 data[3] |= 0x1; 687 if (temp & RH_A_NOCP) 688 data[3] |= 0x10; 689 else if (temp & RH_A_OCPM) 690 data[3] |= 0x8; 691 692 /* corresponds to data[4-7] */ 693 data[5] = (temp & RH_A_POTPGT) >> 24; 694 data[7] = temp & RH_B_DR; 695 if (data[2] < 7) { 696 data[8] = 0xff; 697 } else { 698 data[0] += 2; 699 data[8] = (temp & RH_B_DR) >> 8; 700 data[9] = 0xff; 701 data[10] = 0xff; 702 } 703 704 len = min_t(unsigned int, leni, 705 min_t(unsigned int, data[0], wLength)); 706 memcpy(buffer, data, len); 707 break; 708 } 709 710 case RH_GET_CONFIGURATION: 711 *(__u8 *)buffer = 0x01; 712 len = 1; 713 break; 714 case RH_SET_CONFIGURATION: 715 break; 716 default: 717 R8A66597_DPRINT("unsupported root hub command"); 718 stat = USB_ST_STALLED; 719 } 720 721 mdelay(1); 722 723 len = min_t(int, len, leni); 724 725 dev->act_len = len; 726 dev->status = stat; 727 728 return stat; 729 } 730 731 static int r8a66597_submit_control_msg(struct udevice *udev, 732 struct usb_device *dev, 733 unsigned long pipe, void *buffer, 734 int length, struct devrequest *setup) 735 { 736 struct r8a66597 *r8a66597 = dev_get_priv(udev); 737 u16 r8a66597_address = setup->request == USB_REQ_SET_ADDRESS ? 738 0 : dev->devnum; 739 740 debug("%s: dev='%s', udev=%p, udev->dev='%s', portnr=%d\n", __func__, 741 udev->name, dev, dev->dev->name, dev->portnr); 742 743 R8A66597_DPRINT("%s\n", __func__); 744 if (usb_pipedevice(pipe) == r8a66597->rh_devnum) 745 return r8a66597_submit_rh_msg(udev, dev, pipe, buffer, 746 length, setup); 747 748 R8A66597_DPRINT("%s: setup\n", __func__); 749 set_devadd(r8a66597, r8a66597_address, dev, 0); 750 751 if (send_setup_packet(r8a66597, dev, setup) < 0) { 752 printf("setup packet send error\n"); 753 return -1; 754 } 755 756 dev->act_len = 0; 757 if (usb_pipein(pipe)) 758 if (receive_control_packet(r8a66597, dev, buffer, 759 length) < 0) 760 return -1; 761 762 if (send_status_packet(r8a66597, pipe) < 0) 763 return -1; 764 765 dev->status = 0; 766 767 return 0; 768 } 769 770 static int r8a66597_submit_bulk_msg(struct udevice *udev, 771 struct usb_device *dev, unsigned long pipe, 772 void *buffer, int length) 773 { 774 struct r8a66597 *r8a66597 = dev_get_priv(udev); 775 int ret = 0; 776 777 debug("%s: dev='%s', udev=%p\n", __func__, udev->name, dev); 778 779 R8A66597_DPRINT("%s\n", __func__); 780 R8A66597_DPRINT("pipe = %08x, buffer = %p, len = %d, devnum = %d\n", 781 pipe, buffer, length, dev->devnum); 782 783 set_devadd(r8a66597, dev->devnum, dev, 0); 784 785 pipe_buffer_setting(r8a66597, dev, pipe); 786 787 dev->act_len = 0; 788 while (dev->act_len < length && ret == 0) { 789 if (ctrlc()) 790 return -1; 791 792 if (usb_pipein(pipe)) 793 ret = receive_bulk_packet(r8a66597, dev, pipe, buffer, 794 length); 795 else 796 ret = send_bulk_packet(r8a66597, dev, pipe, buffer, 797 length); 798 } 799 800 if (ret == 0) 801 dev->status = 0; 802 803 return ret; 804 } 805 806 static int r8a66597_usb_ofdata_to_platdata(struct udevice *dev) 807 { 808 struct r8a66597 *priv = dev_get_priv(dev); 809 fdt_addr_t addr; 810 811 addr = dev_read_addr(dev); 812 if (addr == FDT_ADDR_T_NONE) 813 return -EINVAL; 814 priv->reg = addr; 815 816 return 0; 817 } 818 819 static int r8a66597_usb_probe(struct udevice *dev) 820 { 821 struct r8a66597 *priv = dev_get_priv(dev); 822 struct usb_bus_priv *bus_priv = dev_get_uclass_priv(dev); 823 int ret; 824 825 bus_priv->desc_before_addr = true; 826 827 if (CONFIG_IS_ENABLED(DM_REGULATOR)) { 828 ret = device_get_supply_regulator(dev, "vbus-supply", 829 &priv->vbus_supply); 830 if (ret) { 831 dev_err(dev, 832 "can't get VBUS supply\n"); 833 return ret; 834 } 835 836 ret = regulator_set_enable(priv->vbus_supply, true); 837 if (ret) { 838 dev_err(dev, 839 "can't enable VBUS supply\n"); 840 return ret; 841 } 842 } 843 844 disable_controller(priv); 845 mdelay(100); 846 847 enable_controller(priv); 848 r8a66597_port_power(priv, 0, 1); 849 850 /* check usb device */ 851 check_usb_device_connecting(priv); 852 853 mdelay(50); 854 855 return 0; 856 } 857 858 static int r8a66597_usb_remove(struct udevice *dev) 859 { 860 struct r8a66597 *priv = dev_get_priv(dev); 861 int ret; 862 863 disable_controller(priv); 864 865 if (CONFIG_IS_ENABLED(DM_REGULATOR)) { 866 ret = regulator_set_enable(priv->vbus_supply, false); 867 if (ret) { 868 dev_err(dev, 869 "can't disable VBUS supply\n"); 870 return ret; 871 } 872 } 873 874 return 0; 875 } 876 877 struct dm_usb_ops r8a66597_usb_ops = { 878 .control = r8a66597_submit_control_msg, 879 .bulk = r8a66597_submit_bulk_msg, 880 }; 881 882 static const struct udevice_id r8a66597_usb_ids[] = { 883 { .compatible = "renesas,rza1-usbhs" }, 884 { } 885 }; 886 887 U_BOOT_DRIVER(usb_r8a66597) = { 888 .name = "r8a66597_usb", 889 .id = UCLASS_USB, 890 .of_match = r8a66597_usb_ids, 891 .ofdata_to_platdata = r8a66597_usb_ofdata_to_platdata, 892 .probe = r8a66597_usb_probe, 893 .remove = r8a66597_usb_remove, 894 .ops = &r8a66597_usb_ops, 895 .priv_auto_alloc_size = sizeof(struct r8a66597), 896 .flags = DM_FLAG_ALLOC_PRIV_DMA, 897 }; 898