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