1 // SPDX-License-Identifier: GPL-2.0+ 2 /* 3 * Copyright (C) 2012 Oleksandr Tymoshenko <gonzo@freebsd.org> 4 * Copyright (C) 2014 Marek Vasut <marex@denx.de> 5 */ 6 7 #include <common.h> 8 #include <dm.h> 9 #include <errno.h> 10 #include <usb.h> 11 #include <malloc.h> 12 #include <memalign.h> 13 #include <phys2bus.h> 14 #include <usbroothubdes.h> 15 #include <wait_bit.h> 16 #include <asm/io.h> 17 #include <power/regulator.h> 18 19 #include "dwc2.h" 20 21 /* Use only HC channel 0. */ 22 #define DWC2_HC_CHANNEL 0 23 24 #define DWC2_STATUS_BUF_SIZE 64 25 #define DWC2_DATA_BUF_SIZE (CONFIG_USB_DWC2_BUFFER_SIZE * 1024) 26 27 #define MAX_DEVICE 16 28 #define MAX_ENDPOINT 16 29 30 struct dwc2_priv { 31 #ifdef CONFIG_DM_USB 32 uint8_t aligned_buffer[DWC2_DATA_BUF_SIZE] __aligned(ARCH_DMA_MINALIGN); 33 uint8_t status_buffer[DWC2_STATUS_BUF_SIZE] __aligned(ARCH_DMA_MINALIGN); 34 #ifdef CONFIG_DM_REGULATOR 35 struct udevice *vbus_supply; 36 #endif 37 #else 38 uint8_t *aligned_buffer; 39 uint8_t *status_buffer; 40 #endif 41 u8 in_data_toggle[MAX_DEVICE][MAX_ENDPOINT]; 42 u8 out_data_toggle[MAX_DEVICE][MAX_ENDPOINT]; 43 struct dwc2_core_regs *regs; 44 int root_hub_devnum; 45 bool ext_vbus; 46 /* 47 * The hnp/srp capability must be disabled if the platform 48 * does't support hnp/srp. Otherwise the force mode can't work. 49 */ 50 bool hnp_srp_disable; 51 bool oc_disable; 52 }; 53 54 #ifndef CONFIG_DM_USB 55 /* We need cacheline-aligned buffers for DMA transfers and dcache support */ 56 DEFINE_ALIGN_BUFFER(uint8_t, aligned_buffer_addr, DWC2_DATA_BUF_SIZE, 57 ARCH_DMA_MINALIGN); 58 DEFINE_ALIGN_BUFFER(uint8_t, status_buffer_addr, DWC2_STATUS_BUF_SIZE, 59 ARCH_DMA_MINALIGN); 60 61 static struct dwc2_priv local; 62 #endif 63 64 /* 65 * DWC2 IP interface 66 */ 67 68 /* 69 * Initializes the FSLSPClkSel field of the HCFG register 70 * depending on the PHY type. 71 */ 72 static void init_fslspclksel(struct dwc2_core_regs *regs) 73 { 74 uint32_t phyclk; 75 76 #if (CONFIG_DWC2_PHY_TYPE == DWC2_PHY_TYPE_FS) 77 phyclk = DWC2_HCFG_FSLSPCLKSEL_48_MHZ; /* Full speed PHY */ 78 #else 79 /* High speed PHY running at full speed or high speed */ 80 phyclk = DWC2_HCFG_FSLSPCLKSEL_30_60_MHZ; 81 #endif 82 83 #ifdef CONFIG_DWC2_ULPI_FS_LS 84 uint32_t hwcfg2 = readl(®s->ghwcfg2); 85 uint32_t hval = (ghwcfg2 & DWC2_HWCFG2_HS_PHY_TYPE_MASK) >> 86 DWC2_HWCFG2_HS_PHY_TYPE_OFFSET; 87 uint32_t fval = (ghwcfg2 & DWC2_HWCFG2_FS_PHY_TYPE_MASK) >> 88 DWC2_HWCFG2_FS_PHY_TYPE_OFFSET; 89 90 if (hval == 2 && fval == 1) 91 phyclk = DWC2_HCFG_FSLSPCLKSEL_48_MHZ; /* Full speed PHY */ 92 #endif 93 94 clrsetbits_le32(®s->host_regs.hcfg, 95 DWC2_HCFG_FSLSPCLKSEL_MASK, 96 phyclk << DWC2_HCFG_FSLSPCLKSEL_OFFSET); 97 } 98 99 /* 100 * Flush a Tx FIFO. 101 * 102 * @param regs Programming view of DWC_otg controller. 103 * @param num Tx FIFO to flush. 104 */ 105 static void dwc_otg_flush_tx_fifo(struct dwc2_core_regs *regs, const int num) 106 { 107 int ret; 108 109 writel(DWC2_GRSTCTL_TXFFLSH | (num << DWC2_GRSTCTL_TXFNUM_OFFSET), 110 ®s->grstctl); 111 ret = wait_for_bit_le32(®s->grstctl, DWC2_GRSTCTL_TXFFLSH, 112 false, 1000, false); 113 if (ret) 114 dev_info(dev, "%s: Timeout!\n", __func__); 115 116 /* Wait for 3 PHY Clocks */ 117 udelay(1); 118 } 119 120 /* 121 * Flush Rx FIFO. 122 * 123 * @param regs Programming view of DWC_otg controller. 124 */ 125 static void dwc_otg_flush_rx_fifo(struct dwc2_core_regs *regs) 126 { 127 int ret; 128 129 writel(DWC2_GRSTCTL_RXFFLSH, ®s->grstctl); 130 ret = wait_for_bit_le32(®s->grstctl, DWC2_GRSTCTL_RXFFLSH, 131 false, 1000, false); 132 if (ret) 133 dev_info(dev, "%s: Timeout!\n", __func__); 134 135 /* Wait for 3 PHY Clocks */ 136 udelay(1); 137 } 138 139 /* 140 * Do core a soft reset of the core. Be careful with this because it 141 * resets all the internal state machines of the core. 142 */ 143 static void dwc_otg_core_reset(struct dwc2_core_regs *regs) 144 { 145 int ret; 146 147 /* Wait for AHB master IDLE state. */ 148 ret = wait_for_bit_le32(®s->grstctl, DWC2_GRSTCTL_AHBIDLE, 149 true, 1000, false); 150 if (ret) 151 dev_info(dev, "%s: Timeout!\n", __func__); 152 153 /* Core Soft Reset */ 154 writel(DWC2_GRSTCTL_CSFTRST, ®s->grstctl); 155 ret = wait_for_bit_le32(®s->grstctl, DWC2_GRSTCTL_CSFTRST, 156 false, 1000, false); 157 if (ret) 158 dev_info(dev, "%s: Timeout!\n", __func__); 159 160 /* 161 * Wait for core to come out of reset. 162 * NOTE: This long sleep is _very_ important, otherwise the core will 163 * not stay in host mode after a connector ID change! 164 */ 165 mdelay(100); 166 } 167 168 #if defined(CONFIG_DM_USB) && defined(CONFIG_DM_REGULATOR) 169 static int dwc_vbus_supply_init(struct udevice *dev) 170 { 171 struct dwc2_priv *priv = dev_get_priv(dev); 172 int ret; 173 174 ret = device_get_supply_regulator(dev, "vbus-supply", 175 &priv->vbus_supply); 176 if (ret) { 177 debug("%s: No vbus supply\n", dev->name); 178 return 0; 179 } 180 181 ret = regulator_set_enable(priv->vbus_supply, true); 182 if (ret) { 183 dev_err(dev, "Error enabling vbus supply\n"); 184 return ret; 185 } 186 187 return 0; 188 } 189 190 static int dwc_vbus_supply_exit(struct udevice *dev) 191 { 192 struct dwc2_priv *priv = dev_get_priv(dev); 193 int ret; 194 195 if (priv->vbus_supply) { 196 ret = regulator_set_enable(priv->vbus_supply, false); 197 if (ret) { 198 dev_err(dev, "Error disabling vbus supply\n"); 199 return ret; 200 } 201 } 202 203 return 0; 204 } 205 #else 206 static int dwc_vbus_supply_init(struct udevice *dev) 207 { 208 return 0; 209 } 210 211 #if defined(CONFIG_DM_USB) 212 static int dwc_vbus_supply_exit(struct udevice *dev) 213 { 214 return 0; 215 } 216 #endif 217 #endif 218 219 /* 220 * This function initializes the DWC_otg controller registers for 221 * host mode. 222 * 223 * This function flushes the Tx and Rx FIFOs and it flushes any entries in the 224 * request queues. Host channels are reset to ensure that they are ready for 225 * performing transfers. 226 * 227 * @param dev USB Device (NULL if driver model is not being used) 228 * @param regs Programming view of DWC_otg controller 229 * 230 */ 231 static void dwc_otg_core_host_init(struct udevice *dev, 232 struct dwc2_core_regs *regs) 233 { 234 uint32_t nptxfifosize = 0; 235 uint32_t ptxfifosize = 0; 236 uint32_t hprt0 = 0; 237 int i, ret, num_channels; 238 239 /* Restart the Phy Clock */ 240 writel(0, ®s->pcgcctl); 241 242 /* Initialize Host Configuration Register */ 243 init_fslspclksel(regs); 244 #ifdef CONFIG_DWC2_DFLT_SPEED_FULL 245 setbits_le32(®s->host_regs.hcfg, DWC2_HCFG_FSLSSUPP); 246 #endif 247 248 /* Configure data FIFO sizes */ 249 #ifdef CONFIG_DWC2_ENABLE_DYNAMIC_FIFO 250 if (readl(®s->ghwcfg2) & DWC2_HWCFG2_DYNAMIC_FIFO) { 251 /* Rx FIFO */ 252 writel(CONFIG_DWC2_HOST_RX_FIFO_SIZE, ®s->grxfsiz); 253 254 /* Non-periodic Tx FIFO */ 255 nptxfifosize |= CONFIG_DWC2_HOST_NPERIO_TX_FIFO_SIZE << 256 DWC2_FIFOSIZE_DEPTH_OFFSET; 257 nptxfifosize |= CONFIG_DWC2_HOST_RX_FIFO_SIZE << 258 DWC2_FIFOSIZE_STARTADDR_OFFSET; 259 writel(nptxfifosize, ®s->gnptxfsiz); 260 261 /* Periodic Tx FIFO */ 262 ptxfifosize |= CONFIG_DWC2_HOST_PERIO_TX_FIFO_SIZE << 263 DWC2_FIFOSIZE_DEPTH_OFFSET; 264 ptxfifosize |= (CONFIG_DWC2_HOST_RX_FIFO_SIZE + 265 CONFIG_DWC2_HOST_NPERIO_TX_FIFO_SIZE) << 266 DWC2_FIFOSIZE_STARTADDR_OFFSET; 267 writel(ptxfifosize, ®s->hptxfsiz); 268 } 269 #endif 270 271 /* Clear Host Set HNP Enable in the OTG Control Register */ 272 clrbits_le32(®s->gotgctl, DWC2_GOTGCTL_HSTSETHNPEN); 273 274 /* Make sure the FIFOs are flushed. */ 275 dwc_otg_flush_tx_fifo(regs, 0x10); /* All Tx FIFOs */ 276 dwc_otg_flush_rx_fifo(regs); 277 278 /* Flush out any leftover queued requests. */ 279 num_channels = readl(®s->ghwcfg2); 280 num_channels &= DWC2_HWCFG2_NUM_HOST_CHAN_MASK; 281 num_channels >>= DWC2_HWCFG2_NUM_HOST_CHAN_OFFSET; 282 num_channels += 1; 283 284 for (i = 0; i < num_channels; i++) 285 clrsetbits_le32(®s->hc_regs[i].hcchar, 286 DWC2_HCCHAR_CHEN | DWC2_HCCHAR_EPDIR, 287 DWC2_HCCHAR_CHDIS); 288 289 /* Halt all channels to put them into a known state. */ 290 for (i = 0; i < num_channels; i++) { 291 clrsetbits_le32(®s->hc_regs[i].hcchar, 292 DWC2_HCCHAR_EPDIR, 293 DWC2_HCCHAR_CHEN | DWC2_HCCHAR_CHDIS); 294 ret = wait_for_bit_le32(®s->hc_regs[i].hcchar, 295 DWC2_HCCHAR_CHEN, false, 1000, false); 296 if (ret) 297 dev_info("%s: Timeout!\n", __func__); 298 } 299 300 /* Turn on the vbus power. */ 301 if (readl(®s->gintsts) & DWC2_GINTSTS_CURMODE_HOST) { 302 hprt0 = readl(®s->hprt0); 303 hprt0 &= ~(DWC2_HPRT0_PRTENA | DWC2_HPRT0_PRTCONNDET); 304 hprt0 &= ~(DWC2_HPRT0_PRTENCHNG | DWC2_HPRT0_PRTOVRCURRCHNG); 305 if (!(hprt0 & DWC2_HPRT0_PRTPWR)) { 306 hprt0 |= DWC2_HPRT0_PRTPWR; 307 writel(hprt0, ®s->hprt0); 308 } 309 } 310 311 if (dev) 312 dwc_vbus_supply_init(dev); 313 } 314 315 /* 316 * This function initializes the DWC_otg controller registers and 317 * prepares the core for device mode or host mode operation. 318 * 319 * @param regs Programming view of the DWC_otg controller 320 */ 321 static void dwc_otg_core_init(struct dwc2_priv *priv) 322 { 323 struct dwc2_core_regs *regs = priv->regs; 324 uint32_t ahbcfg = 0; 325 uint32_t usbcfg = 0; 326 uint8_t brst_sz = CONFIG_DWC2_DMA_BURST_SIZE; 327 328 /* Common Initialization */ 329 usbcfg = readl(®s->gusbcfg); 330 331 /* Program the ULPI External VBUS bit if needed */ 332 if (priv->ext_vbus) { 333 usbcfg |= DWC2_GUSBCFG_ULPI_EXT_VBUS_DRV; 334 if (!priv->oc_disable) { 335 usbcfg |= DWC2_GUSBCFG_ULPI_INT_VBUS_INDICATOR | 336 DWC2_GUSBCFG_INDICATOR_PASSTHROUGH; 337 } 338 } else { 339 usbcfg &= ~DWC2_GUSBCFG_ULPI_EXT_VBUS_DRV; 340 } 341 342 /* Set external TS Dline pulsing */ 343 #ifdef CONFIG_DWC2_TS_DLINE 344 usbcfg |= DWC2_GUSBCFG_TERM_SEL_DL_PULSE; 345 #else 346 usbcfg &= ~DWC2_GUSBCFG_TERM_SEL_DL_PULSE; 347 #endif 348 writel(usbcfg, ®s->gusbcfg); 349 350 /* Reset the Controller */ 351 dwc_otg_core_reset(regs); 352 353 /* 354 * This programming sequence needs to happen in FS mode before 355 * any other programming occurs 356 */ 357 #if defined(CONFIG_DWC2_DFLT_SPEED_FULL) && \ 358 (CONFIG_DWC2_PHY_TYPE == DWC2_PHY_TYPE_FS) 359 /* If FS mode with FS PHY */ 360 setbits_le32(®s->gusbcfg, DWC2_GUSBCFG_PHYSEL); 361 362 /* Reset after a PHY select */ 363 dwc_otg_core_reset(regs); 364 365 /* 366 * Program DCFG.DevSpd or HCFG.FSLSPclkSel to 48Mhz in FS. 367 * Also do this on HNP Dev/Host mode switches (done in dev_init 368 * and host_init). 369 */ 370 if (readl(®s->gintsts) & DWC2_GINTSTS_CURMODE_HOST) 371 init_fslspclksel(regs); 372 373 #ifdef CONFIG_DWC2_I2C_ENABLE 374 /* Program GUSBCFG.OtgUtmifsSel to I2C */ 375 setbits_le32(®s->gusbcfg, DWC2_GUSBCFG_OTGUTMIFSSEL); 376 377 /* Program GI2CCTL.I2CEn */ 378 clrsetbits_le32(®s->gi2cctl, DWC2_GI2CCTL_I2CEN | 379 DWC2_GI2CCTL_I2CDEVADDR_MASK, 380 1 << DWC2_GI2CCTL_I2CDEVADDR_OFFSET); 381 setbits_le32(®s->gi2cctl, DWC2_GI2CCTL_I2CEN); 382 #endif 383 384 #else 385 /* High speed PHY. */ 386 387 /* 388 * HS PHY parameters. These parameters are preserved during 389 * soft reset so only program the first time. Do a soft reset 390 * immediately after setting phyif. 391 */ 392 usbcfg &= ~(DWC2_GUSBCFG_ULPI_UTMI_SEL | DWC2_GUSBCFG_PHYIF); 393 usbcfg |= CONFIG_DWC2_PHY_TYPE << DWC2_GUSBCFG_ULPI_UTMI_SEL_OFFSET; 394 395 if (usbcfg & DWC2_GUSBCFG_ULPI_UTMI_SEL) { /* ULPI interface */ 396 #ifdef CONFIG_DWC2_PHY_ULPI_DDR 397 usbcfg |= DWC2_GUSBCFG_DDRSEL; 398 #else 399 usbcfg &= ~DWC2_GUSBCFG_DDRSEL; 400 #endif 401 } else { /* UTMI+ interface */ 402 #if (CONFIG_DWC2_UTMI_WIDTH == 16) 403 usbcfg |= DWC2_GUSBCFG_PHYIF; 404 #endif 405 } 406 407 writel(usbcfg, ®s->gusbcfg); 408 409 /* Reset after setting the PHY parameters */ 410 dwc_otg_core_reset(regs); 411 #endif 412 413 usbcfg = readl(®s->gusbcfg); 414 usbcfg &= ~(DWC2_GUSBCFG_ULPI_FSLS | DWC2_GUSBCFG_ULPI_CLK_SUS_M); 415 #ifdef CONFIG_DWC2_ULPI_FS_LS 416 uint32_t hwcfg2 = readl(®s->ghwcfg2); 417 uint32_t hval = (ghwcfg2 & DWC2_HWCFG2_HS_PHY_TYPE_MASK) >> 418 DWC2_HWCFG2_HS_PHY_TYPE_OFFSET; 419 uint32_t fval = (ghwcfg2 & DWC2_HWCFG2_FS_PHY_TYPE_MASK) >> 420 DWC2_HWCFG2_FS_PHY_TYPE_OFFSET; 421 if (hval == 2 && fval == 1) { 422 usbcfg |= DWC2_GUSBCFG_ULPI_FSLS; 423 usbcfg |= DWC2_GUSBCFG_ULPI_CLK_SUS_M; 424 } 425 #endif 426 if (priv->hnp_srp_disable) 427 usbcfg |= DWC2_GUSBCFG_FORCEHOSTMODE; 428 429 writel(usbcfg, ®s->gusbcfg); 430 431 /* Program the GAHBCFG Register. */ 432 switch (readl(®s->ghwcfg2) & DWC2_HWCFG2_ARCHITECTURE_MASK) { 433 case DWC2_HWCFG2_ARCHITECTURE_SLAVE_ONLY: 434 break; 435 case DWC2_HWCFG2_ARCHITECTURE_EXT_DMA: 436 while (brst_sz > 1) { 437 ahbcfg |= ahbcfg + (1 << DWC2_GAHBCFG_HBURSTLEN_OFFSET); 438 ahbcfg &= DWC2_GAHBCFG_HBURSTLEN_MASK; 439 brst_sz >>= 1; 440 } 441 442 #ifdef CONFIG_DWC2_DMA_ENABLE 443 ahbcfg |= DWC2_GAHBCFG_DMAENABLE; 444 #endif 445 break; 446 447 case DWC2_HWCFG2_ARCHITECTURE_INT_DMA: 448 ahbcfg |= DWC2_GAHBCFG_HBURSTLEN_INCR4; 449 #ifdef CONFIG_DWC2_DMA_ENABLE 450 ahbcfg |= DWC2_GAHBCFG_DMAENABLE; 451 #endif 452 break; 453 } 454 455 writel(ahbcfg, ®s->gahbcfg); 456 457 /* Program the capabilities in GUSBCFG Register */ 458 usbcfg = 0; 459 460 if (!priv->hnp_srp_disable) 461 usbcfg |= DWC2_GUSBCFG_HNPCAP | DWC2_GUSBCFG_SRPCAP; 462 #ifdef CONFIG_DWC2_IC_USB_CAP 463 usbcfg |= DWC2_GUSBCFG_IC_USB_CAP; 464 #endif 465 466 setbits_le32(®s->gusbcfg, usbcfg); 467 } 468 469 /* 470 * Prepares a host channel for transferring packets to/from a specific 471 * endpoint. The HCCHARn register is set up with the characteristics specified 472 * in _hc. Host channel interrupts that may need to be serviced while this 473 * transfer is in progress are enabled. 474 * 475 * @param regs Programming view of DWC_otg controller 476 * @param hc Information needed to initialize the host channel 477 */ 478 static void dwc_otg_hc_init(struct dwc2_core_regs *regs, uint8_t hc_num, 479 struct usb_device *dev, uint8_t dev_addr, uint8_t ep_num, 480 uint8_t ep_is_in, uint8_t ep_type, uint16_t max_packet) 481 { 482 struct dwc2_hc_regs *hc_regs = ®s->hc_regs[hc_num]; 483 uint32_t hcchar = (dev_addr << DWC2_HCCHAR_DEVADDR_OFFSET) | 484 (ep_num << DWC2_HCCHAR_EPNUM_OFFSET) | 485 (ep_is_in << DWC2_HCCHAR_EPDIR_OFFSET) | 486 (ep_type << DWC2_HCCHAR_EPTYPE_OFFSET) | 487 (max_packet << DWC2_HCCHAR_MPS_OFFSET); 488 489 if (dev->speed == USB_SPEED_LOW) 490 hcchar |= DWC2_HCCHAR_LSPDDEV; 491 492 /* 493 * Program the HCCHARn register with the endpoint characteristics 494 * for the current transfer. 495 */ 496 writel(hcchar, &hc_regs->hcchar); 497 498 /* Program the HCSPLIT register, default to no SPLIT */ 499 writel(0, &hc_regs->hcsplt); 500 } 501 502 static void dwc_otg_hc_init_split(struct dwc2_hc_regs *hc_regs, 503 uint8_t hub_devnum, uint8_t hub_port) 504 { 505 uint32_t hcsplt = 0; 506 507 hcsplt = DWC2_HCSPLT_SPLTENA; 508 hcsplt |= hub_devnum << DWC2_HCSPLT_HUBADDR_OFFSET; 509 hcsplt |= hub_port << DWC2_HCSPLT_PRTADDR_OFFSET; 510 511 /* Program the HCSPLIT register for SPLITs */ 512 writel(hcsplt, &hc_regs->hcsplt); 513 } 514 515 /* 516 * DWC2 to USB API interface 517 */ 518 /* Direction: In ; Request: Status */ 519 static int dwc_otg_submit_rh_msg_in_status(struct dwc2_core_regs *regs, 520 struct usb_device *dev, void *buffer, 521 int txlen, struct devrequest *cmd) 522 { 523 uint32_t hprt0 = 0; 524 uint32_t port_status = 0; 525 uint32_t port_change = 0; 526 int len = 0; 527 int stat = 0; 528 529 switch (cmd->requesttype & ~USB_DIR_IN) { 530 case 0: 531 *(uint16_t *)buffer = cpu_to_le16(1); 532 len = 2; 533 break; 534 case USB_RECIP_INTERFACE: 535 case USB_RECIP_ENDPOINT: 536 *(uint16_t *)buffer = cpu_to_le16(0); 537 len = 2; 538 break; 539 case USB_TYPE_CLASS: 540 *(uint32_t *)buffer = cpu_to_le32(0); 541 len = 4; 542 break; 543 case USB_RECIP_OTHER | USB_TYPE_CLASS: 544 hprt0 = readl(®s->hprt0); 545 if (hprt0 & DWC2_HPRT0_PRTCONNSTS) 546 port_status |= USB_PORT_STAT_CONNECTION; 547 if (hprt0 & DWC2_HPRT0_PRTENA) 548 port_status |= USB_PORT_STAT_ENABLE; 549 if (hprt0 & DWC2_HPRT0_PRTSUSP) 550 port_status |= USB_PORT_STAT_SUSPEND; 551 if (hprt0 & DWC2_HPRT0_PRTOVRCURRACT) 552 port_status |= USB_PORT_STAT_OVERCURRENT; 553 if (hprt0 & DWC2_HPRT0_PRTRST) 554 port_status |= USB_PORT_STAT_RESET; 555 if (hprt0 & DWC2_HPRT0_PRTPWR) 556 port_status |= USB_PORT_STAT_POWER; 557 558 if ((hprt0 & DWC2_HPRT0_PRTSPD_MASK) == DWC2_HPRT0_PRTSPD_LOW) 559 port_status |= USB_PORT_STAT_LOW_SPEED; 560 else if ((hprt0 & DWC2_HPRT0_PRTSPD_MASK) == 561 DWC2_HPRT0_PRTSPD_HIGH) 562 port_status |= USB_PORT_STAT_HIGH_SPEED; 563 564 if (hprt0 & DWC2_HPRT0_PRTENCHNG) 565 port_change |= USB_PORT_STAT_C_ENABLE; 566 if (hprt0 & DWC2_HPRT0_PRTCONNDET) 567 port_change |= USB_PORT_STAT_C_CONNECTION; 568 if (hprt0 & DWC2_HPRT0_PRTOVRCURRCHNG) 569 port_change |= USB_PORT_STAT_C_OVERCURRENT; 570 571 *(uint32_t *)buffer = cpu_to_le32(port_status | 572 (port_change << 16)); 573 len = 4; 574 break; 575 default: 576 puts("unsupported root hub command\n"); 577 stat = USB_ST_STALLED; 578 } 579 580 dev->act_len = min(len, txlen); 581 dev->status = stat; 582 583 return stat; 584 } 585 586 /* Direction: In ; Request: Descriptor */ 587 static int dwc_otg_submit_rh_msg_in_descriptor(struct usb_device *dev, 588 void *buffer, int txlen, 589 struct devrequest *cmd) 590 { 591 unsigned char data[32]; 592 uint32_t dsc; 593 int len = 0; 594 int stat = 0; 595 uint16_t wValue = cpu_to_le16(cmd->value); 596 uint16_t wLength = cpu_to_le16(cmd->length); 597 598 switch (cmd->requesttype & ~USB_DIR_IN) { 599 case 0: 600 switch (wValue & 0xff00) { 601 case 0x0100: /* device descriptor */ 602 len = min3(txlen, (int)sizeof(root_hub_dev_des), (int)wLength); 603 memcpy(buffer, root_hub_dev_des, len); 604 break; 605 case 0x0200: /* configuration descriptor */ 606 len = min3(txlen, (int)sizeof(root_hub_config_des), (int)wLength); 607 memcpy(buffer, root_hub_config_des, len); 608 break; 609 case 0x0300: /* string descriptors */ 610 switch (wValue & 0xff) { 611 case 0x00: 612 len = min3(txlen, (int)sizeof(root_hub_str_index0), 613 (int)wLength); 614 memcpy(buffer, root_hub_str_index0, len); 615 break; 616 case 0x01: 617 len = min3(txlen, (int)sizeof(root_hub_str_index1), 618 (int)wLength); 619 memcpy(buffer, root_hub_str_index1, len); 620 break; 621 } 622 break; 623 default: 624 stat = USB_ST_STALLED; 625 } 626 break; 627 628 case USB_TYPE_CLASS: 629 /* Root port config, set 1 port and nothing else. */ 630 dsc = 0x00000001; 631 632 data[0] = 9; /* min length; */ 633 data[1] = 0x29; 634 data[2] = dsc & RH_A_NDP; 635 data[3] = 0; 636 if (dsc & RH_A_PSM) 637 data[3] |= 0x1; 638 if (dsc & RH_A_NOCP) 639 data[3] |= 0x10; 640 else if (dsc & RH_A_OCPM) 641 data[3] |= 0x8; 642 643 /* corresponds to data[4-7] */ 644 data[5] = (dsc & RH_A_POTPGT) >> 24; 645 data[7] = dsc & RH_B_DR; 646 if (data[2] < 7) { 647 data[8] = 0xff; 648 } else { 649 data[0] += 2; 650 data[8] = (dsc & RH_B_DR) >> 8; 651 data[9] = 0xff; 652 data[10] = data[9]; 653 } 654 655 len = min3(txlen, (int)data[0], (int)wLength); 656 memcpy(buffer, data, len); 657 break; 658 default: 659 puts("unsupported root hub command\n"); 660 stat = USB_ST_STALLED; 661 } 662 663 dev->act_len = min(len, txlen); 664 dev->status = stat; 665 666 return stat; 667 } 668 669 /* Direction: In ; Request: Configuration */ 670 static int dwc_otg_submit_rh_msg_in_configuration(struct usb_device *dev, 671 void *buffer, int txlen, 672 struct devrequest *cmd) 673 { 674 int len = 0; 675 int stat = 0; 676 677 switch (cmd->requesttype & ~USB_DIR_IN) { 678 case 0: 679 *(uint8_t *)buffer = 0x01; 680 len = 1; 681 break; 682 default: 683 puts("unsupported root hub command\n"); 684 stat = USB_ST_STALLED; 685 } 686 687 dev->act_len = min(len, txlen); 688 dev->status = stat; 689 690 return stat; 691 } 692 693 /* Direction: In */ 694 static int dwc_otg_submit_rh_msg_in(struct dwc2_priv *priv, 695 struct usb_device *dev, void *buffer, 696 int txlen, struct devrequest *cmd) 697 { 698 switch (cmd->request) { 699 case USB_REQ_GET_STATUS: 700 return dwc_otg_submit_rh_msg_in_status(priv->regs, dev, buffer, 701 txlen, cmd); 702 case USB_REQ_GET_DESCRIPTOR: 703 return dwc_otg_submit_rh_msg_in_descriptor(dev, buffer, 704 txlen, cmd); 705 case USB_REQ_GET_CONFIGURATION: 706 return dwc_otg_submit_rh_msg_in_configuration(dev, buffer, 707 txlen, cmd); 708 default: 709 puts("unsupported root hub command\n"); 710 return USB_ST_STALLED; 711 } 712 } 713 714 /* Direction: Out */ 715 static int dwc_otg_submit_rh_msg_out(struct dwc2_priv *priv, 716 struct usb_device *dev, 717 void *buffer, int txlen, 718 struct devrequest *cmd) 719 { 720 struct dwc2_core_regs *regs = priv->regs; 721 int len = 0; 722 int stat = 0; 723 uint16_t bmrtype_breq = cmd->requesttype | (cmd->request << 8); 724 uint16_t wValue = cpu_to_le16(cmd->value); 725 726 switch (bmrtype_breq & ~USB_DIR_IN) { 727 case (USB_REQ_CLEAR_FEATURE << 8) | USB_RECIP_ENDPOINT: 728 case (USB_REQ_CLEAR_FEATURE << 8) | USB_TYPE_CLASS: 729 break; 730 731 case (USB_REQ_CLEAR_FEATURE << 8) | USB_RECIP_OTHER | USB_TYPE_CLASS: 732 switch (wValue) { 733 case USB_PORT_FEAT_C_CONNECTION: 734 setbits_le32(®s->hprt0, DWC2_HPRT0_PRTCONNDET); 735 break; 736 } 737 break; 738 739 case (USB_REQ_SET_FEATURE << 8) | USB_RECIP_OTHER | USB_TYPE_CLASS: 740 switch (wValue) { 741 case USB_PORT_FEAT_SUSPEND: 742 break; 743 744 case USB_PORT_FEAT_RESET: 745 clrsetbits_le32(®s->hprt0, DWC2_HPRT0_PRTENA | 746 DWC2_HPRT0_PRTCONNDET | 747 DWC2_HPRT0_PRTENCHNG | 748 DWC2_HPRT0_PRTOVRCURRCHNG, 749 DWC2_HPRT0_PRTRST); 750 mdelay(50); 751 clrbits_le32(®s->hprt0, DWC2_HPRT0_PRTRST); 752 break; 753 754 case USB_PORT_FEAT_POWER: 755 clrsetbits_le32(®s->hprt0, DWC2_HPRT0_PRTENA | 756 DWC2_HPRT0_PRTCONNDET | 757 DWC2_HPRT0_PRTENCHNG | 758 DWC2_HPRT0_PRTOVRCURRCHNG, 759 DWC2_HPRT0_PRTRST); 760 break; 761 762 case USB_PORT_FEAT_ENABLE: 763 break; 764 } 765 break; 766 case (USB_REQ_SET_ADDRESS << 8): 767 priv->root_hub_devnum = wValue; 768 break; 769 case (USB_REQ_SET_CONFIGURATION << 8): 770 break; 771 default: 772 puts("unsupported root hub command\n"); 773 stat = USB_ST_STALLED; 774 } 775 776 len = min(len, txlen); 777 778 dev->act_len = len; 779 dev->status = stat; 780 781 return stat; 782 } 783 784 static int dwc_otg_submit_rh_msg(struct dwc2_priv *priv, struct usb_device *dev, 785 unsigned long pipe, void *buffer, int txlen, 786 struct devrequest *cmd) 787 { 788 int stat = 0; 789 790 if (usb_pipeint(pipe)) { 791 puts("Root-Hub submit IRQ: NOT implemented\n"); 792 return 0; 793 } 794 795 if (cmd->requesttype & USB_DIR_IN) 796 stat = dwc_otg_submit_rh_msg_in(priv, dev, buffer, txlen, cmd); 797 else 798 stat = dwc_otg_submit_rh_msg_out(priv, dev, buffer, txlen, cmd); 799 800 mdelay(1); 801 802 return stat; 803 } 804 805 int wait_for_chhltd(struct dwc2_hc_regs *hc_regs, uint32_t *sub, u8 *toggle) 806 { 807 int ret; 808 uint32_t hcint, hctsiz; 809 810 ret = wait_for_bit_le32(&hc_regs->hcint, DWC2_HCINT_CHHLTD, true, 811 2000, false); 812 if (ret) 813 return ret; 814 815 hcint = readl(&hc_regs->hcint); 816 hctsiz = readl(&hc_regs->hctsiz); 817 *sub = (hctsiz & DWC2_HCTSIZ_XFERSIZE_MASK) >> 818 DWC2_HCTSIZ_XFERSIZE_OFFSET; 819 *toggle = (hctsiz & DWC2_HCTSIZ_PID_MASK) >> DWC2_HCTSIZ_PID_OFFSET; 820 821 debug("%s: HCINT=%08x sub=%u toggle=%d\n", __func__, hcint, *sub, 822 *toggle); 823 824 if (hcint & DWC2_HCINT_XFERCOMP) 825 return 0; 826 827 if (hcint & (DWC2_HCINT_NAK | DWC2_HCINT_FRMOVRUN)) 828 return -EAGAIN; 829 830 debug("%s: Error (HCINT=%08x)\n", __func__, hcint); 831 return -EINVAL; 832 } 833 834 static int dwc2_eptype[] = { 835 DWC2_HCCHAR_EPTYPE_ISOC, 836 DWC2_HCCHAR_EPTYPE_INTR, 837 DWC2_HCCHAR_EPTYPE_CONTROL, 838 DWC2_HCCHAR_EPTYPE_BULK, 839 }; 840 841 static int transfer_chunk(struct dwc2_hc_regs *hc_regs, void *aligned_buffer, 842 u8 *pid, int in, void *buffer, int num_packets, 843 int xfer_len, int *actual_len, int odd_frame) 844 { 845 int ret = 0; 846 uint32_t sub; 847 848 debug("%s: chunk: pid %d xfer_len %u pkts %u\n", __func__, 849 *pid, xfer_len, num_packets); 850 851 writel((xfer_len << DWC2_HCTSIZ_XFERSIZE_OFFSET) | 852 (num_packets << DWC2_HCTSIZ_PKTCNT_OFFSET) | 853 (*pid << DWC2_HCTSIZ_PID_OFFSET), 854 &hc_regs->hctsiz); 855 856 if (xfer_len) { 857 if (in) { 858 invalidate_dcache_range( 859 (uintptr_t)aligned_buffer, 860 (uintptr_t)aligned_buffer + 861 roundup(xfer_len, ARCH_DMA_MINALIGN)); 862 } else { 863 memcpy(aligned_buffer, buffer, xfer_len); 864 flush_dcache_range( 865 (uintptr_t)aligned_buffer, 866 (uintptr_t)aligned_buffer + 867 roundup(xfer_len, ARCH_DMA_MINALIGN)); 868 } 869 } 870 871 writel(phys_to_bus((unsigned long)aligned_buffer), &hc_regs->hcdma); 872 873 /* Clear old interrupt conditions for this host channel. */ 874 writel(0x3fff, &hc_regs->hcint); 875 876 /* Set host channel enable after all other setup is complete. */ 877 clrsetbits_le32(&hc_regs->hcchar, DWC2_HCCHAR_MULTICNT_MASK | 878 DWC2_HCCHAR_CHEN | DWC2_HCCHAR_CHDIS | 879 DWC2_HCCHAR_ODDFRM, 880 (1 << DWC2_HCCHAR_MULTICNT_OFFSET) | 881 (odd_frame << DWC2_HCCHAR_ODDFRM_OFFSET) | 882 DWC2_HCCHAR_CHEN); 883 884 ret = wait_for_chhltd(hc_regs, &sub, pid); 885 if (ret < 0) 886 return ret; 887 888 if (in) { 889 xfer_len -= sub; 890 891 invalidate_dcache_range((unsigned long)aligned_buffer, 892 (unsigned long)aligned_buffer + 893 roundup(xfer_len, ARCH_DMA_MINALIGN)); 894 895 memcpy(buffer, aligned_buffer, xfer_len); 896 } 897 *actual_len = xfer_len; 898 899 return ret; 900 } 901 902 int chunk_msg(struct dwc2_priv *priv, struct usb_device *dev, 903 unsigned long pipe, u8 *pid, int in, void *buffer, int len) 904 { 905 struct dwc2_core_regs *regs = priv->regs; 906 struct dwc2_hc_regs *hc_regs = ®s->hc_regs[DWC2_HC_CHANNEL]; 907 struct dwc2_host_regs *host_regs = ®s->host_regs; 908 int devnum = usb_pipedevice(pipe); 909 int ep = usb_pipeendpoint(pipe); 910 int max = usb_maxpacket(dev, pipe); 911 int eptype = dwc2_eptype[usb_pipetype(pipe)]; 912 int done = 0; 913 int ret = 0; 914 int do_split = 0; 915 int complete_split = 0; 916 uint32_t xfer_len; 917 uint32_t num_packets; 918 int stop_transfer = 0; 919 uint32_t max_xfer_len; 920 int ssplit_frame_num = 0; 921 922 debug("%s: msg: pipe %lx pid %d in %d len %d\n", __func__, pipe, *pid, 923 in, len); 924 925 max_xfer_len = CONFIG_DWC2_MAX_PACKET_COUNT * max; 926 if (max_xfer_len > CONFIG_DWC2_MAX_TRANSFER_SIZE) 927 max_xfer_len = CONFIG_DWC2_MAX_TRANSFER_SIZE; 928 if (max_xfer_len > DWC2_DATA_BUF_SIZE) 929 max_xfer_len = DWC2_DATA_BUF_SIZE; 930 931 /* Make sure that max_xfer_len is a multiple of max packet size. */ 932 num_packets = max_xfer_len / max; 933 max_xfer_len = num_packets * max; 934 935 /* Initialize channel */ 936 dwc_otg_hc_init(regs, DWC2_HC_CHANNEL, dev, devnum, ep, in, 937 eptype, max); 938 939 /* Check if the target is a FS/LS device behind a HS hub */ 940 if (dev->speed != USB_SPEED_HIGH) { 941 uint8_t hub_addr; 942 uint8_t hub_port; 943 uint32_t hprt0 = readl(®s->hprt0); 944 if ((hprt0 & DWC2_HPRT0_PRTSPD_MASK) == 945 DWC2_HPRT0_PRTSPD_HIGH) { 946 usb_find_usb2_hub_address_port(dev, &hub_addr, 947 &hub_port); 948 dwc_otg_hc_init_split(hc_regs, hub_addr, hub_port); 949 950 do_split = 1; 951 num_packets = 1; 952 max_xfer_len = max; 953 } 954 } 955 956 do { 957 int actual_len = 0; 958 uint32_t hcint; 959 int odd_frame = 0; 960 xfer_len = len - done; 961 962 if (xfer_len > max_xfer_len) 963 xfer_len = max_xfer_len; 964 else if (xfer_len > max) 965 num_packets = (xfer_len + max - 1) / max; 966 else 967 num_packets = 1; 968 969 if (complete_split) 970 setbits_le32(&hc_regs->hcsplt, DWC2_HCSPLT_COMPSPLT); 971 else if (do_split) 972 clrbits_le32(&hc_regs->hcsplt, DWC2_HCSPLT_COMPSPLT); 973 974 if (eptype == DWC2_HCCHAR_EPTYPE_INTR) { 975 int uframe_num = readl(&host_regs->hfnum); 976 if (!(uframe_num & 0x1)) 977 odd_frame = 1; 978 } 979 980 ret = transfer_chunk(hc_regs, priv->aligned_buffer, pid, 981 in, (char *)buffer + done, num_packets, 982 xfer_len, &actual_len, odd_frame); 983 984 hcint = readl(&hc_regs->hcint); 985 if (complete_split) { 986 stop_transfer = 0; 987 if (hcint & DWC2_HCINT_NYET) { 988 ret = 0; 989 int frame_num = DWC2_HFNUM_MAX_FRNUM & 990 readl(&host_regs->hfnum); 991 if (((frame_num - ssplit_frame_num) & 992 DWC2_HFNUM_MAX_FRNUM) > 4) 993 ret = -EAGAIN; 994 } else 995 complete_split = 0; 996 } else if (do_split) { 997 if (hcint & DWC2_HCINT_ACK) { 998 ssplit_frame_num = DWC2_HFNUM_MAX_FRNUM & 999 readl(&host_regs->hfnum); 1000 ret = 0; 1001 complete_split = 1; 1002 } 1003 } 1004 1005 if (ret) 1006 break; 1007 1008 if (actual_len < xfer_len) 1009 stop_transfer = 1; 1010 1011 done += actual_len; 1012 1013 /* Transactions are done when when either all data is transferred or 1014 * there is a short transfer. In case of a SPLIT make sure the CSPLIT 1015 * is executed. 1016 */ 1017 } while (((done < len) && !stop_transfer) || complete_split); 1018 1019 writel(0, &hc_regs->hcintmsk); 1020 writel(0xFFFFFFFF, &hc_regs->hcint); 1021 1022 dev->status = 0; 1023 dev->act_len = done; 1024 1025 return ret; 1026 } 1027 1028 /* U-Boot USB transmission interface */ 1029 int _submit_bulk_msg(struct dwc2_priv *priv, struct usb_device *dev, 1030 unsigned long pipe, void *buffer, int len) 1031 { 1032 int devnum = usb_pipedevice(pipe); 1033 int ep = usb_pipeendpoint(pipe); 1034 u8* pid; 1035 1036 if ((devnum >= MAX_DEVICE) || (devnum == priv->root_hub_devnum)) { 1037 dev->status = 0; 1038 return -EINVAL; 1039 } 1040 1041 if (usb_pipein(pipe)) 1042 pid = &priv->in_data_toggle[devnum][ep]; 1043 else 1044 pid = &priv->out_data_toggle[devnum][ep]; 1045 1046 return chunk_msg(priv, dev, pipe, pid, usb_pipein(pipe), buffer, len); 1047 } 1048 1049 static int _submit_control_msg(struct dwc2_priv *priv, struct usb_device *dev, 1050 unsigned long pipe, void *buffer, int len, 1051 struct devrequest *setup) 1052 { 1053 int devnum = usb_pipedevice(pipe); 1054 int ret, act_len; 1055 u8 pid; 1056 /* For CONTROL endpoint pid should start with DATA1 */ 1057 int status_direction; 1058 1059 if (devnum == priv->root_hub_devnum) { 1060 dev->status = 0; 1061 dev->speed = USB_SPEED_HIGH; 1062 return dwc_otg_submit_rh_msg(priv, dev, pipe, buffer, len, 1063 setup); 1064 } 1065 1066 /* SETUP stage */ 1067 pid = DWC2_HC_PID_SETUP; 1068 do { 1069 ret = chunk_msg(priv, dev, pipe, &pid, 0, setup, 8); 1070 } while (ret == -EAGAIN); 1071 if (ret) 1072 return ret; 1073 1074 /* DATA stage */ 1075 act_len = 0; 1076 if (buffer) { 1077 pid = DWC2_HC_PID_DATA1; 1078 do { 1079 ret = chunk_msg(priv, dev, pipe, &pid, usb_pipein(pipe), 1080 buffer, len); 1081 act_len += dev->act_len; 1082 buffer += dev->act_len; 1083 len -= dev->act_len; 1084 } while (ret == -EAGAIN); 1085 if (ret) 1086 return ret; 1087 status_direction = usb_pipeout(pipe); 1088 } else { 1089 /* No-data CONTROL always ends with an IN transaction */ 1090 status_direction = 1; 1091 } 1092 1093 /* STATUS stage */ 1094 pid = DWC2_HC_PID_DATA1; 1095 do { 1096 ret = chunk_msg(priv, dev, pipe, &pid, status_direction, 1097 priv->status_buffer, 0); 1098 } while (ret == -EAGAIN); 1099 if (ret) 1100 return ret; 1101 1102 dev->act_len = act_len; 1103 1104 return 0; 1105 } 1106 1107 int _submit_int_msg(struct dwc2_priv *priv, struct usb_device *dev, 1108 unsigned long pipe, void *buffer, int len, int interval) 1109 { 1110 unsigned long timeout; 1111 int ret; 1112 1113 /* FIXME: what is interval? */ 1114 1115 timeout = get_timer(0) + USB_TIMEOUT_MS(pipe); 1116 for (;;) { 1117 if (get_timer(0) > timeout) { 1118 dev_err(dev, "Timeout poll on interrupt endpoint\n"); 1119 return -ETIMEDOUT; 1120 } 1121 ret = _submit_bulk_msg(priv, dev, pipe, buffer, len); 1122 if (ret != -EAGAIN) 1123 return ret; 1124 } 1125 } 1126 1127 static int dwc2_init_common(struct udevice *dev, struct dwc2_priv *priv) 1128 { 1129 struct dwc2_core_regs *regs = priv->regs; 1130 uint32_t snpsid; 1131 int i, j; 1132 1133 snpsid = readl(®s->gsnpsid); 1134 dev_info(dev, "Core Release: %x.%03x\n", 1135 snpsid >> 12 & 0xf, snpsid & 0xfff); 1136 1137 if ((snpsid & DWC2_SNPSID_DEVID_MASK) != DWC2_SNPSID_DEVID_VER_2xx && 1138 (snpsid & DWC2_SNPSID_DEVID_MASK) != DWC2_SNPSID_DEVID_VER_3xx) { 1139 dev_info(dev, "SNPSID invalid (not DWC2 OTG device): %08x\n", 1140 snpsid); 1141 return -ENODEV; 1142 } 1143 1144 #ifdef CONFIG_DWC2_PHY_ULPI_EXT_VBUS 1145 priv->ext_vbus = 1; 1146 #else 1147 priv->ext_vbus = 0; 1148 #endif 1149 1150 dwc_otg_core_init(priv); 1151 dwc_otg_core_host_init(dev, regs); 1152 1153 clrsetbits_le32(®s->hprt0, DWC2_HPRT0_PRTENA | 1154 DWC2_HPRT0_PRTCONNDET | DWC2_HPRT0_PRTENCHNG | 1155 DWC2_HPRT0_PRTOVRCURRCHNG, 1156 DWC2_HPRT0_PRTRST); 1157 mdelay(50); 1158 clrbits_le32(®s->hprt0, DWC2_HPRT0_PRTENA | DWC2_HPRT0_PRTCONNDET | 1159 DWC2_HPRT0_PRTENCHNG | DWC2_HPRT0_PRTOVRCURRCHNG | 1160 DWC2_HPRT0_PRTRST); 1161 1162 for (i = 0; i < MAX_DEVICE; i++) { 1163 for (j = 0; j < MAX_ENDPOINT; j++) { 1164 priv->in_data_toggle[i][j] = DWC2_HC_PID_DATA0; 1165 priv->out_data_toggle[i][j] = DWC2_HC_PID_DATA0; 1166 } 1167 } 1168 1169 /* 1170 * Add a 1 second delay here. This gives the host controller 1171 * a bit time before the comminucation with the USB devices 1172 * is started (the bus is scanned) and fixes the USB detection 1173 * problems with some problematic USB keys. 1174 */ 1175 if (readl(®s->gintsts) & DWC2_GINTSTS_CURMODE_HOST) 1176 mdelay(1000); 1177 1178 return 0; 1179 } 1180 1181 static void dwc2_uninit_common(struct dwc2_core_regs *regs) 1182 { 1183 /* Put everything in reset. */ 1184 clrsetbits_le32(®s->hprt0, DWC2_HPRT0_PRTENA | 1185 DWC2_HPRT0_PRTCONNDET | DWC2_HPRT0_PRTENCHNG | 1186 DWC2_HPRT0_PRTOVRCURRCHNG, 1187 DWC2_HPRT0_PRTRST); 1188 } 1189 1190 #ifndef CONFIG_DM_USB 1191 int submit_control_msg(struct usb_device *dev, unsigned long pipe, void *buffer, 1192 int len, struct devrequest *setup) 1193 { 1194 return _submit_control_msg(&local, dev, pipe, buffer, len, setup); 1195 } 1196 1197 int submit_bulk_msg(struct usb_device *dev, unsigned long pipe, void *buffer, 1198 int len) 1199 { 1200 return _submit_bulk_msg(&local, dev, pipe, buffer, len); 1201 } 1202 1203 int submit_int_msg(struct usb_device *dev, unsigned long pipe, void *buffer, 1204 int len, int interval) 1205 { 1206 return _submit_int_msg(&local, dev, pipe, buffer, len, interval); 1207 } 1208 1209 /* U-Boot USB control interface */ 1210 int usb_lowlevel_init(int index, enum usb_init_type init, void **controller) 1211 { 1212 struct dwc2_priv *priv = &local; 1213 1214 memset(priv, '\0', sizeof(*priv)); 1215 priv->root_hub_devnum = 0; 1216 priv->regs = (struct dwc2_core_regs *)CONFIG_USB_DWC2_REG_ADDR; 1217 priv->aligned_buffer = aligned_buffer_addr; 1218 priv->status_buffer = status_buffer_addr; 1219 1220 /* board-dependant init */ 1221 if (board_usb_init(index, USB_INIT_HOST)) 1222 return -1; 1223 1224 return dwc2_init_common(NULL, priv); 1225 } 1226 1227 int usb_lowlevel_stop(int index) 1228 { 1229 dwc2_uninit_common(local.regs); 1230 1231 return 0; 1232 } 1233 #endif 1234 1235 #ifdef CONFIG_DM_USB 1236 static int dwc2_submit_control_msg(struct udevice *dev, struct usb_device *udev, 1237 unsigned long pipe, void *buffer, int length, 1238 struct devrequest *setup) 1239 { 1240 struct dwc2_priv *priv = dev_get_priv(dev); 1241 1242 debug("%s: dev='%s', udev=%p, udev->dev='%s', portnr=%d\n", __func__, 1243 dev->name, udev, udev->dev->name, udev->portnr); 1244 1245 return _submit_control_msg(priv, udev, pipe, buffer, length, setup); 1246 } 1247 1248 static int dwc2_submit_bulk_msg(struct udevice *dev, struct usb_device *udev, 1249 unsigned long pipe, void *buffer, int length) 1250 { 1251 struct dwc2_priv *priv = dev_get_priv(dev); 1252 1253 debug("%s: dev='%s', udev=%p\n", __func__, dev->name, udev); 1254 1255 return _submit_bulk_msg(priv, udev, pipe, buffer, length); 1256 } 1257 1258 static int dwc2_submit_int_msg(struct udevice *dev, struct usb_device *udev, 1259 unsigned long pipe, void *buffer, int length, 1260 int interval) 1261 { 1262 struct dwc2_priv *priv = dev_get_priv(dev); 1263 1264 debug("%s: dev='%s', udev=%p\n", __func__, dev->name, udev); 1265 1266 return _submit_int_msg(priv, udev, pipe, buffer, length, interval); 1267 } 1268 1269 static int dwc2_usb_ofdata_to_platdata(struct udevice *dev) 1270 { 1271 struct dwc2_priv *priv = dev_get_priv(dev); 1272 fdt_addr_t addr; 1273 1274 addr = dev_read_addr(dev); 1275 if (addr == FDT_ADDR_T_NONE) 1276 return -EINVAL; 1277 priv->regs = (struct dwc2_core_regs *)addr; 1278 1279 priv->oc_disable = dev_read_bool(dev, "disable-over-current"); 1280 priv->hnp_srp_disable = dev_read_bool(dev, "hnp-srp-disable"); 1281 1282 return 0; 1283 } 1284 1285 static int dwc2_usb_probe(struct udevice *dev) 1286 { 1287 struct dwc2_priv *priv = dev_get_priv(dev); 1288 struct usb_bus_priv *bus_priv = dev_get_uclass_priv(dev); 1289 1290 bus_priv->desc_before_addr = true; 1291 1292 return dwc2_init_common(dev, priv); 1293 } 1294 1295 static int dwc2_usb_remove(struct udevice *dev) 1296 { 1297 struct dwc2_priv *priv = dev_get_priv(dev); 1298 int ret; 1299 1300 ret = dwc_vbus_supply_exit(dev); 1301 if (ret) 1302 return ret; 1303 1304 dwc2_uninit_common(priv->regs); 1305 1306 return 0; 1307 } 1308 1309 struct dm_usb_ops dwc2_usb_ops = { 1310 .control = dwc2_submit_control_msg, 1311 .bulk = dwc2_submit_bulk_msg, 1312 .interrupt = dwc2_submit_int_msg, 1313 }; 1314 1315 static const struct udevice_id dwc2_usb_ids[] = { 1316 { .compatible = "brcm,bcm2835-usb" }, 1317 { .compatible = "snps,dwc2" }, 1318 { } 1319 }; 1320 1321 U_BOOT_DRIVER(usb_dwc2) = { 1322 .name = "dwc2_usb", 1323 .id = UCLASS_USB, 1324 .of_match = dwc2_usb_ids, 1325 .ofdata_to_platdata = dwc2_usb_ofdata_to_platdata, 1326 .probe = dwc2_usb_probe, 1327 .remove = dwc2_usb_remove, 1328 .ops = &dwc2_usb_ops, 1329 .priv_auto_alloc_size = sizeof(struct dwc2_priv), 1330 .flags = DM_FLAG_ALLOC_PRIV_DMA, 1331 }; 1332 #endif 1333