1 /* ==========================================================================
2 * $File: //dwh/usb_iip/dev/software/otg/linux/drivers/dwc_otg_driver.c $
7 * Synopsys HS OTG Linux Software Driver and documentation (hereinafter,
8 * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless
9 * otherwise expressly agreed to in writing between Synopsys and you.
11 * The Software IS NOT an item of Licensed Software or Licensed Product under
12 * any End User Software License Agreement or Agreement for Licensed Product
13 * with Synopsys or any supplement thereto. You are permitted to use and
14 * redistribute this Software in source and binary forms, with or without
15 * modification, provided that redistributions of source code must retain this
16 * notice. You may not view, use, disclose, copy or distribute this file or
17 * any information contained herein except pursuant to this license grant from
18 * Synopsys. If you do not agree with this notice, including the disclaimer
19 * below, then you are not authorized to use the Software.
21 * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS
22 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT,
25 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
26 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
27 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
28 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
32 * ========================================================================== */
35 * The dwc_otg_driver module provides the initialization and cleanup entry
36 * points for the DWC_otg driver. This module will be dynamically installed
37 * after Linux is booted using the insmod command. When the module is
38 * installed, the dwc_otg_driver_init function is called. When the module is
39 * removed (using rmmod), the dwc_otg_driver_cleanup function is called.
41 * This module also defines a data structure for the dwc_otg_driver, which is
42 * used in conjunction with the standard ARM lm_device structure. These
43 * structures allow the OTG driver to comply with the standard Linux driver
44 * model in which devices and drivers are registered with a bus driver. This
45 * has the benefit that Linux can expose attributes of the driver and device
46 * in its special sysfs file system. Users can then read or write files in
47 * this file system to perform diagnostics on the driver components or the
51 #include "dwc_otg_os_dep.h"
52 #include "common_port/dwc_os.h"
53 #include "dwc_otg_dbg.h"
54 #include "dwc_otg_driver.h"
55 #include "dwc_otg_attr.h"
56 #include "dwc_otg_core_if.h"
57 #include "dwc_otg_pcd_if.h"
58 #include "dwc_otg_hcd_if.h"
59 #include "dwc_otg_cil.h"
60 #include "dwc_otg_pcd.h"
62 #include "usbdev_rk.h"
64 #define DWC_DRIVER_VERSION "3.10a 21-DEC-2012"
65 #define DWC_DRIVER_DESC "HS OTG USB Controller driver"
67 static const char dwc_host20_driver_name[] = "usb20_host";
68 static const char dwc_otg20_driver_name[] = "usb20_otg";
70 dwc_otg_device_t* g_otgdev = NULL;
72 extern int pcd_init( struct platform_device *_dev );
73 extern int otg20_hcd_init( struct platform_device *_dev );
74 extern int host20_hcd_init( struct platform_device *_dev );
75 extern int pcd_remove( struct platform_device *_dev );
76 extern void hcd_remove( struct platform_device *_dev);
77 extern void dwc_otg_adp_start( dwc_otg_core_if_t * core_if, uint8_t is_host);
79 #ifdef CONFIG_USB20_OTG
80 static struct usb20otg_pdata_id usb20otg_pdata[] = {
82 .name = "rk3188-usb20otg",
83 .pdata = &usb20otg_pdata_rk3188,
86 .name = "rk3288-usb20otg",
87 .pdata = &usb20otg_pdata_rk3288,
93 #ifdef CONFIG_USB20_HOST
94 static struct usb20host_pdata_id usb20host_pdata[] = {
96 .name = "rk3188-usb20host",
97 .pdata = &usb20host_pdata_rk3188,
100 .name = "rk3288-usb20host",
101 .pdata = &usb20host_pdata_rk3288,
107 /*-------------------------------------------------------------------------*/
108 /* Encapsulate the module parameter settings */
110 struct dwc_otg_driver_module_params {
114 int32_t dma_desc_enable;
115 int32_t dma_burst_size;
117 int32_t host_support_fs_ls_low_power;
118 int32_t host_ls_low_power_phy_clk;
119 int32_t enable_dynamic_fifo;
120 int32_t data_fifo_size;
121 int32_t dev_rx_fifo_size;
122 int32_t dev_nperio_tx_fifo_size;
123 uint32_t dev_perio_tx_fifo_size[MAX_PERIO_FIFOS];
124 int32_t host_rx_fifo_size;
125 int32_t host_nperio_tx_fifo_size;
126 int32_t host_perio_tx_fifo_size;
127 int32_t max_transfer_size;
128 int32_t max_packet_count;
129 int32_t host_channels;
130 int32_t dev_endpoints;
132 int32_t phy_utmi_width;
133 int32_t phy_ulpi_ddr;
134 int32_t phy_ulpi_ext_vbus;
138 int32_t en_multiple_tx_fifo;
139 uint32_t dev_tx_fifo_size[MAX_TX_FIFOS];
141 uint32_t tx_thr_length;
142 uint32_t rx_thr_length;
147 int32_t baseline_besl;
150 int32_t ahb_thr_ratio;
160 static struct dwc_otg_driver_module_params dwc_otg_module_params = {
162 .otg_cap = DWC_OTG_CAP_PARAM_NO_HNP_SRP_CAPABLE,
164 .dma_desc_enable = 0,
165 .dma_burst_size = -1,
167 .host_support_fs_ls_low_power = -1,
168 .host_ls_low_power_phy_clk = -1,
169 .enable_dynamic_fifo = 1,
170 .data_fifo_size = -1,
171 .dev_rx_fifo_size = 0x120,
172 .dev_nperio_tx_fifo_size = 0x10,
173 .dev_perio_tx_fifo_size = {
174 /* dev_perio_tx_fifo_size_1 */
192 .host_rx_fifo_size = -1,
193 .host_nperio_tx_fifo_size = -1,
194 .host_perio_tx_fifo_size = -1,
195 .max_transfer_size = -1,
196 .max_packet_count = -1,
200 .phy_utmi_width = -1,
202 .phy_ulpi_ext_vbus = -1,
206 .en_multiple_tx_fifo = -1,
207 .dev_tx_fifo_size = {
208 /* dev_tx_fifo_size */
246 #ifdef CONFIG_USB20_HOST
247 static struct dwc_otg_driver_module_params dwc_host_module_params = {
249 .otg_cap = DWC_OTG_CAP_PARAM_NO_HNP_SRP_CAPABLE,
251 .dma_desc_enable = 0,
252 .dma_burst_size = -1,
254 .host_support_fs_ls_low_power = -1,
255 .host_ls_low_power_phy_clk = -1,
256 .enable_dynamic_fifo = -1,
257 .data_fifo_size = -1,
258 .dev_rx_fifo_size = -1,
259 .dev_nperio_tx_fifo_size = -1,
260 .dev_perio_tx_fifo_size = {
261 /* dev_perio_tx_fifo_size_1 */
279 .host_rx_fifo_size = -1,
280 .host_nperio_tx_fifo_size = -1,
281 .host_perio_tx_fifo_size = -1,
282 .max_transfer_size = -1,
283 .max_packet_count = -1,
287 .phy_utmi_width = -1,
289 .phy_ulpi_ext_vbus = -1,
293 .en_multiple_tx_fifo = -1,
294 .dev_tx_fifo_size = {
295 /* dev_tx_fifo_size */
335 * This function shows the Driver Version.
337 static ssize_t version_show(struct device_driver *dev, char *buf)
339 return snprintf(buf, sizeof(DWC_DRIVER_VERSION) + 2, "%s\n",
343 static DRIVER_ATTR(version, S_IRUGO, version_show, NULL);
346 * Global Debug Level Mask.
348 uint32_t g_dbg_lvl = DBG_OFF; /* OFF */
351 * This function shows the driver Debug Level.
353 static ssize_t dbg_level_show(struct device_driver *drv, char *buf)
355 return sprintf(buf, "0x%0x\n", g_dbg_lvl);
359 * This function stores the driver Debug Level.
361 static ssize_t dbg_level_store(struct device_driver *drv, const char *buf,
364 g_dbg_lvl = simple_strtoul(buf, NULL, 16);
368 static DRIVER_ATTR(debuglevel, S_IRUGO | S_IWUSR, dbg_level_show,
371 extern void hcd_start(dwc_otg_core_if_t *core_if);
372 extern struct usb_hub *g_dwc_otg_root_hub20;
373 extern void dwc_otg_hub_disconnect_device(struct usb_hub *hub);
375 void dwc_otg_force_host(dwc_otg_core_if_t *core_if)
377 dwc_otg_device_t *otg_dev = core_if->otg_dev;
378 dctl_data_t dctl = {.d32=0};
381 if(core_if->op_state == A_HOST)
383 printk("dwc_otg_force_host,already in A_HOST mode,everest\n");
386 core_if->op_state = A_HOST;
388 cancel_delayed_work(&otg_dev->pcd->check_vbus_work);
389 dctl.d32 = DWC_READ_REG32(&core_if->dev_if->dev_global_regs->dctl);
390 dctl.b.sftdiscon = 1;
391 DWC_WRITE_REG32(&core_if->dev_if->dev_global_regs->dctl, dctl.d32);
393 local_irq_save(flags);
394 cil_pcd_stop(core_if);
396 * Initialize the Core for Host mode.
399 dwc_otg_core_init(core_if);
400 dwc_otg_enable_global_interrupts(core_if);
401 cil_hcd_start(core_if);
402 local_irq_restore(flags);
404 void dwc_otg_force_device(dwc_otg_core_if_t *core_if)
406 dwc_otg_device_t *otg_dev = core_if->otg_dev;
409 local_irq_save(flags);
411 if(core_if->op_state == B_PERIPHERAL) {
412 printk("dwc_otg_force_device,already in B_PERIPHERAL,everest\n");
415 core_if->op_state = B_PERIPHERAL;
416 cil_hcd_stop(core_if);
417 //dwc_otg_hub_disconnect_device(g_dwc_otg_root_hub20);
418 otg_dev->pcd->phy_suspend = 1;
419 otg_dev->pcd->vbus_status = 0;
420 dwc_otg_pcd_start_check_vbus_work(otg_dev->pcd);
422 /* Reset the Controller */
423 dwc_otg_core_reset( core_if );
425 dwc_otg_core_init(core_if);
426 dwc_otg_disable_global_interrupts(core_if);
427 cil_pcd_start(core_if);
429 local_irq_restore(flags);
431 static void dwc_otg_set_force_mode(dwc_otg_core_if_t *core_if, int mode)
433 gusbcfg_data_t usbcfg = { .d32 = 0 };
434 printk("!!!dwc_otg_set_force_mode\n");
435 usbcfg.d32 = DWC_READ_REG32( &core_if->core_global_regs->gusbcfg);
437 case USB_MODE_FORCE_HOST:
438 usbcfg.b.force_host_mode = 1;
439 usbcfg.b.force_dev_mode = 0;
441 case USB_MODE_FORCE_DEVICE:
442 usbcfg.b.force_host_mode = 0;
443 usbcfg.b.force_dev_mode = 1;
445 case USB_MODE_NORMAL:
446 usbcfg.b.force_host_mode = 0;
447 usbcfg.b.force_dev_mode = 0;
450 DWC_WRITE_REG32( &core_if->core_global_regs->gusbcfg, usbcfg.d32 );
453 static ssize_t force_usb_mode_show(struct device_driver *drv, char *buf)
455 dwc_otg_device_t *otg_dev = g_otgdev;
456 dwc_otg_core_if_t *core_if = otg_dev->core_if;
458 return sprintf(buf, "%d\n", core_if->usb_mode);
461 static ssize_t force_usb_mode_store(struct device_driver *drv, const char *buf,
464 int new_mode = simple_strtoul(buf, NULL, 16);
465 dwc_otg_device_t *otg_dev = g_otgdev;
466 dwc_otg_core_if_t *core_if;
467 struct dwc_otg_platform_data *pldata;
472 core_if = otg_dev->core_if;
473 pldata = otg_dev->pldata;
475 DWC_PRINTF("%s %d->%d\n",__func__, core_if->usb_mode, new_mode);
477 if(core_if->usb_mode == new_mode) {
481 if(pldata->phy_status == USB_PHY_SUSPEND) {
482 pldata->clock_enable(pldata, 1);
483 pldata->phy_suspend(pldata, USB_PHY_ENABLED);
487 case USB_MODE_FORCE_HOST:
488 if(USB_MODE_FORCE_DEVICE == core_if->usb_mode) {
490 core_if->usb_mode = new_mode;
491 dwc_otg_force_host(core_if);
492 } else if(USB_MODE_NORMAL == core_if->usb_mode) {
493 core_if->usb_mode = new_mode;
494 if(dwc_otg_is_host_mode(core_if)) {
495 dwc_otg_set_force_mode(core_if, new_mode);
497 dwc_otg_force_host(core_if);
502 case USB_MODE_FORCE_DEVICE:
503 if(USB_MODE_FORCE_HOST == core_if->usb_mode) {
504 core_if->usb_mode = new_mode;
505 dwc_otg_force_device(core_if);
506 } else if(USB_MODE_NORMAL == core_if->usb_mode) {
507 core_if->usb_mode = new_mode;
508 if(dwc_otg_is_device_mode(core_if)) {
509 dwc_otg_set_force_mode(core_if, new_mode);
511 dwc_otg_force_device(core_if);
516 case USB_MODE_NORMAL:
517 if(USB_MODE_FORCE_DEVICE == core_if->usb_mode) {
518 core_if->usb_mode = new_mode;
519 cancel_delayed_work(&otg_dev->pcd->check_vbus_work);
520 dwc_otg_set_force_mode(core_if, new_mode);
522 if(dwc_otg_is_host_mode(core_if)) {
523 dwc_otg_force_host(core_if);
525 dwc_otg_pcd_start_check_vbus_work(otg_dev->pcd);
527 } else if(USB_MODE_FORCE_HOST == core_if->usb_mode) {
528 core_if->usb_mode = new_mode;
529 dwc_otg_set_force_mode(core_if, new_mode);
531 if(dwc_otg_is_device_mode(core_if)) {
532 dwc_otg_force_device(core_if);
543 static DRIVER_ATTR(force_usb_mode, S_IRUGO | S_IWUSR, force_usb_mode_show, force_usb_mode_store);
546 static ssize_t dwc_otg_conn_en_show(struct device_driver *_drv, char *_buf)
549 dwc_otg_device_t *otg_dev = g_otgdev;
550 dwc_otg_pcd_t *_pcd = otg_dev->pcd;
551 return sprintf (_buf, "%d\n", _pcd->conn_en);
555 static ssize_t dwc_otg_conn_en_store(struct device_driver *_drv, const char *_buf,
558 int enable = simple_strtoul(_buf, NULL, 10);
559 dwc_otg_device_t *otg_dev = g_otgdev;
560 dwc_otg_pcd_t *_pcd = otg_dev->pcd;
561 DWC_PRINTF("%s %d->%d\n",__func__, _pcd->conn_en, enable);
563 _pcd->conn_en = enable;
566 static DRIVER_ATTR(dwc_otg_conn_en, S_IRUGO|S_IWUSR, dwc_otg_conn_en_show, dwc_otg_conn_en_store);
568 static ssize_t vbus_status_show(struct device_driver *_drv, char *_buf)
570 dwc_otg_device_t *otg_dev = g_otgdev;
571 dwc_otg_pcd_t *_pcd = otg_dev->pcd;
572 return sprintf (_buf, "%d\n", _pcd->vbus_status);
574 static DRIVER_ATTR(vbus_status, S_IRUGO, vbus_status_show, NULL);
577 * This function is called during module intialization
578 * to pass module parameters to the DWC_OTG CORE.
580 static int set_parameters(dwc_otg_core_if_t * core_if, struct dwc_otg_driver_module_params module_params)
585 if (module_params.otg_cap != -1) {
587 dwc_otg_set_param_otg_cap(core_if,
588 module_params.otg_cap);
590 if (module_params.dma_enable != -1) {
592 dwc_otg_set_param_dma_enable(core_if,
596 if (module_params.dma_desc_enable != -1) {
598 dwc_otg_set_param_dma_desc_enable(core_if,
602 if (module_params.opt != -1) {
604 dwc_otg_set_param_opt(core_if, module_params.opt);
606 if (module_params.dma_burst_size != -1) {
608 dwc_otg_set_param_dma_burst_size(core_if,
612 if (module_params.host_support_fs_ls_low_power != -1) {
614 dwc_otg_set_param_host_support_fs_ls_low_power(core_if,
616 host_support_fs_ls_low_power);
618 if (module_params.enable_dynamic_fifo != -1) {
620 dwc_otg_set_param_enable_dynamic_fifo(core_if,
622 enable_dynamic_fifo);
624 if (module_params.data_fifo_size != -1) {
626 dwc_otg_set_param_data_fifo_size(core_if,
630 if (module_params.dev_rx_fifo_size != -1) {
632 dwc_otg_set_param_dev_rx_fifo_size(core_if,
636 if (module_params.dev_nperio_tx_fifo_size != -1) {
638 dwc_otg_set_param_dev_nperio_tx_fifo_size(core_if,
640 dev_nperio_tx_fifo_size);
642 if (module_params.host_rx_fifo_size != -1) {
644 dwc_otg_set_param_host_rx_fifo_size(core_if,
645 module_params.host_rx_fifo_size);
647 if (module_params.host_nperio_tx_fifo_size != -1) {
649 dwc_otg_set_param_host_nperio_tx_fifo_size(core_if,
651 host_nperio_tx_fifo_size);
653 if (module_params.host_perio_tx_fifo_size != -1) {
655 dwc_otg_set_param_host_perio_tx_fifo_size(core_if,
657 host_perio_tx_fifo_size);
659 if (module_params.max_transfer_size != -1) {
661 dwc_otg_set_param_max_transfer_size(core_if,
665 if (module_params.max_packet_count != -1) {
667 dwc_otg_set_param_max_packet_count(core_if,
671 if (module_params.host_channels != -1) {
673 dwc_otg_set_param_host_channels(core_if,
677 if (module_params.dev_endpoints != -1) {
679 dwc_otg_set_param_dev_endpoints(core_if,
683 if (module_params.phy_type != -1) {
685 dwc_otg_set_param_phy_type(core_if,
686 module_params.phy_type);
688 if (module_params.speed != -1) {
690 dwc_otg_set_param_speed(core_if,
691 module_params.speed);
693 if (module_params.host_ls_low_power_phy_clk != -1) {
695 dwc_otg_set_param_host_ls_low_power_phy_clk(core_if,
697 host_ls_low_power_phy_clk);
699 if (module_params.phy_ulpi_ddr != -1) {
701 dwc_otg_set_param_phy_ulpi_ddr(core_if,
705 if (module_params.phy_ulpi_ext_vbus != -1) {
707 dwc_otg_set_param_phy_ulpi_ext_vbus(core_if,
711 if (module_params.phy_utmi_width != -1) {
713 dwc_otg_set_param_phy_utmi_width(core_if,
717 if (module_params.ulpi_fs_ls != -1) {
719 dwc_otg_set_param_ulpi_fs_ls(core_if,
720 module_params.ulpi_fs_ls);
722 if (module_params.ts_dline != -1) {
724 dwc_otg_set_param_ts_dline(core_if,
725 module_params.ts_dline);
727 if (module_params.i2c_enable != -1) {
729 dwc_otg_set_param_i2c_enable(core_if,
733 if (module_params.en_multiple_tx_fifo != -1) {
735 dwc_otg_set_param_en_multiple_tx_fifo(core_if,
737 en_multiple_tx_fifo);
739 for (i = 0; i < 15; i++) {
740 if (module_params.dev_perio_tx_fifo_size[i] != -1) {
742 dwc_otg_set_param_dev_perio_tx_fifo_size(core_if,
744 dev_perio_tx_fifo_size
749 for (i = 0; i < 15; i++) {
750 if (module_params.dev_tx_fifo_size[i] != -1) {
751 retval += dwc_otg_set_param_dev_tx_fifo_size(core_if,
757 if (module_params.thr_ctl != -1) {
759 dwc_otg_set_param_thr_ctl(core_if,
760 module_params.thr_ctl);
762 if (module_params.mpi_enable != -1) {
764 dwc_otg_set_param_mpi_enable(core_if,
768 if (module_params.pti_enable != -1) {
770 dwc_otg_set_param_pti_enable(core_if,
774 if (module_params.lpm_enable != -1) {
776 dwc_otg_set_param_lpm_enable(core_if,
780 if (module_params.besl_enable != -1) {
782 dwc_otg_set_param_besl_enable(core_if,
786 if (module_params.baseline_besl != -1) {
788 dwc_otg_set_param_baseline_besl(core_if,
792 if (module_params.deep_besl != -1) {
794 dwc_otg_set_param_deep_besl(core_if,
798 if (module_params.ic_usb_cap != -1) {
800 dwc_otg_set_param_ic_usb_cap(core_if,
804 if (module_params.tx_thr_length != -1) {
806 dwc_otg_set_param_tx_thr_length(core_if,
807 module_params.tx_thr_length);
809 if (module_params.rx_thr_length != -1) {
811 dwc_otg_set_param_rx_thr_length(core_if,
815 if (module_params.ahb_thr_ratio != -1) {
817 dwc_otg_set_param_ahb_thr_ratio(core_if,
818 module_params.ahb_thr_ratio);
820 if (module_params.power_down != -1) {
822 dwc_otg_set_param_power_down(core_if,
823 module_params.power_down);
825 if (module_params.reload_ctl != -1) {
827 dwc_otg_set_param_reload_ctl(core_if,
828 module_params.reload_ctl);
831 if (module_params.dev_out_nak != -1) {
833 dwc_otg_set_param_dev_out_nak(core_if,
834 module_params.dev_out_nak);
837 if (module_params.cont_on_bna != -1) {
839 dwc_otg_set_param_cont_on_bna(core_if,
840 module_params.cont_on_bna);
843 if (module_params.ahb_single != -1) {
845 dwc_otg_set_param_ahb_single(core_if,
846 module_params.ahb_single);
849 if (module_params.otg_ver != -1) {
851 dwc_otg_set_param_otg_ver(core_if,
852 module_params.otg_ver);
854 if (module_params.adp_enable != -1) {
856 dwc_otg_set_param_adp_enable(core_if,
864 * This function is the top level interrupt handler for the Common
865 * (Device and host modes) interrupts.
867 static irqreturn_t dwc_otg_common_irq(int irq, void *dev)
869 int32_t retval = IRQ_NONE;
871 retval = dwc_otg_handle_common_intr(dev);
873 //S3C2410X_CLEAR_EINTPEND();
875 return IRQ_RETVAL(retval);
878 #ifdef CONFIG_USB20_HOST
880 * This function is called when a lm_device is unregistered with the
881 * dwc_otg_driver. This happens, for example, when the rmmod command is
882 * executed. The device may or may not be electrically present. If it is
883 * present, the driver stops device processing. Any resources used on behalf
884 * of this device are freed.
888 static int host20_driver_remove( struct platform_device *_dev )
891 dwc_otg_device_t *otg_dev = dwc_get_device_platform_data(_dev);
892 DWC_DEBUGPL(DBG_ANY, "%s(%p)\n", __func__, _dev);
895 /* Memory allocation for the dwc_otg_device failed. */
896 DWC_DEBUGPL(DBG_ANY, "%s: otg_dev NULL!\n", __func__);
900 #ifndef DWC_DEVICE_ONLY
904 DWC_DEBUGPL(DBG_ANY, "%s: otg_dev->hcd NULL!\n", __func__);
909 #ifndef DWC_HOST_ONLY
913 DWC_DEBUGPL(DBG_ANY, "%s: otg_dev->pcd NULL!\n", __func__);
921 if (otg_dev->common_irq_installed) {
922 //free_irq(_dev->irq, otg_dev);
923 free_irq(platform_get_irq(_dev,0), otg_dev );
925 DWC_DEBUGPL(DBG_ANY, "%s: There is no installed irq!\n", __func__);
929 if (otg_dev->core_if) {
930 dwc_otg_cil_remove(otg_dev->core_if);
932 DWC_DEBUGPL(DBG_ANY, "%s: otg_dev->core_if NULL!\n", __func__);
937 * Remove the device attributes
939 dwc_otg_attr_remove(_dev);
944 if (otg_dev->os_dep.base) {
945 iounmap(otg_dev->os_dep.base);
950 * Clear the drvdata pointer.
953 dwc_set_device_platform_data(_dev, 0);
958 static const struct of_device_id usb20_host_of_match[] = {
960 .compatible = "rockchip,rk3188_usb20_host",
961 .data = &usb20host_pdata[RK3188_USB_CTLR],
964 .compatible = "rockchip,rk3288_usb20_host",
965 .data = &usb20host_pdata[RK3288_USB_CTLR],
969 MODULE_DEVICE_TABLE(of, usb20_host_of_match);
972 * This function is called when an lm_device is bound to a
973 * dwc_otg_driver. It creates the driver components required to
974 * control the device (CIL, HCD, and PCD) and it initializes the
975 * device. The driver components are stored in a dwc_otg_device
976 * structure. A reference to the dwc_otg_device is saved in the
977 * lm_device. This allows the driver to access the dwc_otg_device
978 * structure on subsequent calls to driver methods for this device.
980 * @param _dev Bus device
982 static int host20_driver_probe(struct platform_device *_dev)
986 struct resource *res_base;
987 dwc_otg_device_t *dwc_otg_device;
988 struct device *dev = &_dev->dev;
989 struct device_node *node = _dev->dev.of_node;
990 struct dwc_otg_platform_data *pldata;
991 struct usb20host_pdata_id *p;
992 const struct of_device_id *match =
993 of_match_device(of_match_ptr( usb20_host_of_match ), &_dev->dev);
996 p = (struct usb20host_pdata_id *)match->data;
998 dev_err(dev, "usb20host match failed\n");
1002 dev->platform_data = p->pdata;
1003 pldata = dev->platform_data;
1007 dev_err(dev, "device node not found\n");
1014 if(pldata->clock_init){
1015 pldata->clock_init(pldata);
1016 pldata->clock_enable(pldata, 1);
1019 if(pldata->phy_suspend)
1020 pldata->phy_suspend(pldata, USB_PHY_ENABLED);
1022 if(pldata->soft_reset)
1023 pldata->soft_reset();
1025 res_base=platform_get_resource(_dev, IORESOURCE_MEM, 0);
1027 dwc_otg_device = DWC_ALLOC(sizeof(dwc_otg_device_t));
1029 if (!dwc_otg_device) {
1030 dev_err(&_dev->dev, "kmalloc of dwc_otg_device failed\n");
1035 memset(dwc_otg_device, 0, sizeof(*dwc_otg_device));
1036 dwc_otg_device->os_dep.reg_offset = 0xFFFFFFFF;
1039 * Map the DWC_otg Core memory into virtual address space.
1042 dwc_otg_device->os_dep.base = devm_ioremap_resource(dev, res_base);
1044 if (!dwc_otg_device->os_dep.base) {
1045 dev_err(&_dev->dev, "ioremap() failed\n");
1046 DWC_FREE(dwc_otg_device);
1050 dev_dbg(&_dev->dev, "base=0x%08x\n",
1051 (unsigned)dwc_otg_device->os_dep.base);
1054 * Initialize driver data to point to the global DWC_otg
1058 dwc_set_device_platform_data(_dev, dwc_otg_device);
1059 pldata->privdata = dwc_otg_device;
1060 dwc_otg_device->pldata = (void *)pldata;
1062 dev_dbg(&_dev->dev, "dwc_otg_device=0x%p\n", dwc_otg_device);
1064 dwc_otg_device->core_if = dwc_otg_cil_init(dwc_otg_device->os_dep.base);
1067 if (!dwc_otg_device->core_if) {
1068 dev_err(&_dev->dev, "CIL initialization failed!\n");
1073 dwc_otg_device->core_if->otg_dev= dwc_otg_device;
1076 * Attempt to ensure this device is really a DWC_otg Controller.
1077 * Read and verify the SNPSID register contents. The value should be
1078 * 0x45F42XXX or 0x45F42XXX, which corresponds to either "OT2" or "OTG3",
1079 * as in "OTG version 2.XX" or "OTG version 3.XX".
1082 if (((dwc_otg_get_gsnpsid(dwc_otg_device->core_if) & 0xFFFFF000) != 0x4F542000) &&
1083 ((dwc_otg_get_gsnpsid(dwc_otg_device->core_if) & 0xFFFFF000) != 0x4F543000)) {
1084 dev_err(&_dev->dev, "Bad value for SNPSID: 0x%08x\n",
1085 dwc_otg_get_gsnpsid(dwc_otg_device->core_if));
1091 * Validate parameter values.
1093 if (set_parameters(dwc_otg_device->core_if ,dwc_host_module_params )) {
1099 * Create Device Attributes in sysfs
1101 dwc_otg_attr_create(_dev);
1104 * Disable the global interrupt until all the interrupt
1105 * handlers are installed.
1107 dwc_otg_disable_global_interrupts(dwc_otg_device->core_if);
1110 * Install the interrupt handler for the common interrupts before
1111 * enabling common interrupts in core_init below.
1113 irq = platform_get_irq(_dev,0);
1114 DWC_DEBUGPL(DBG_CIL, "registering (common) handler for irq%d\n",
1116 retval = request_irq(irq, dwc_otg_common_irq,
1117 IRQF_SHARED , "dwc_otg",
1120 DWC_ERROR("request of irq%d failed\n", irq);
1124 dwc_otg_device->common_irq_installed = 1;
1128 * Initialize the DWC_otg core.
1130 dwc_otg_core_init(dwc_otg_device->core_if);
1133 * Initialize the HCD
1135 retval = host20_hcd_init(_dev);
1137 DWC_ERROR("hcd_init failed\n");
1138 dwc_otg_device->hcd = NULL;
1143 * Enable the global interrupt after all the interrupt
1144 * handlers are installed if there is no ADP support else
1145 * perform initial actions required for Internal ADP logic.
1147 if (!dwc_otg_get_param_adp_enable(dwc_otg_device->core_if))
1148 dwc_otg_enable_global_interrupts(dwc_otg_device->core_if);
1150 dwc_otg_adp_start(dwc_otg_device->core_if,
1151 dwc_otg_is_host_mode(dwc_otg_device->core_if));
1156 host20_driver_remove(_dev);
1158 if(pldata->clock_enable)
1159 pldata->clock_enable(pldata, 0);
1165 static int dwc_otg_driver_suspend(struct platform_device *_dev , pm_message_t state )
1170 static int dwc_otg_driver_resume(struct platform_device *_dev )
1175 static void dwc_otg_driver_shutdown(struct platform_device *_dev )
1177 struct device *dev = &_dev->dev;
1178 dwc_otg_device_t *otg_dev = dev->platform_data;
1179 dwc_otg_core_if_t *core_if = otg_dev->core_if;
1180 dctl_data_t dctl = {.d32=0};
1182 DWC_PRINTF("%s: disconnect USB %s mode\n" , __func__ ,
1183 dwc_otg_is_host_mode(core_if) ? "host" : "device");
1184 if(dwc_otg_is_host_mode(core_if))
1186 if (core_if->hcd_cb && core_if->hcd_cb->stop)
1188 core_if->hcd_cb->stop( core_if->hcd_cb_p);
1193 /* soft disconnect */
1194 dctl.d32 = DWC_READ_REG32( &core_if->dev_if->dev_global_regs->dctl );
1195 dctl.b.sftdiscon = 1;
1196 DWC_WRITE_REG32( &core_if->dev_if->dev_global_regs->dctl, dctl.d32 );
1198 /* Clear any pending interrupts */
1199 DWC_WRITE_REG32( &core_if->core_global_regs->gintsts, 0xFFFFFFFF);
1205 * This structure defines the methods to be called by a bus driver
1206 * during the lifecycle of a device on that bus. Both drivers and
1207 * devices are registered with a bus driver. The bus driver matches
1208 * devices to drivers based on information in the device and driver
1211 * The probe function is called when the bus driver matches a device
1212 * to this driver. The remove function is called when a device is
1213 * unregistered with the bus driver.
1215 #ifdef CONFIG_USB20_HOST
1216 static struct platform_driver dwc_host_driver = {
1218 .name = (char *)dwc_host20_driver_name,
1219 .of_match_table = of_match_ptr(usb20_host_of_match),
1221 .probe = host20_driver_probe,
1222 .remove = host20_driver_remove,
1223 .suspend = dwc_otg_driver_suspend,
1224 .resume = dwc_otg_driver_resume,
1228 #ifdef CONFIG_USB20_OTG
1230 * This function is called when a lm_device is unregistered with the
1231 * dwc_otg_driver. This happens, for example, when the rmmod command is
1232 * executed. The device may or may not be electrically present. If it is
1233 * present, the driver stops device processing. Any resources used on behalf
1234 * of this device are freed.
1238 static int otg20_driver_remove( struct platform_device *_dev )
1241 dwc_otg_device_t *otg_dev = dwc_get_device_platform_data(_dev);
1242 DWC_DEBUGPL(DBG_ANY, "%s(%p)\n", __func__, _dev);
1245 /* Memory allocation for the dwc_otg_device failed. */
1246 DWC_DEBUGPL(DBG_ANY, "%s: otg_dev NULL!\n", __func__);
1249 #ifndef DWC_DEVICE_ONLY
1253 DWC_DEBUGPL(DBG_ANY, "%s: otg_dev->hcd NULL!\n", __func__);
1258 #ifndef DWC_HOST_ONLY
1262 DWC_DEBUGPL(DBG_ANY, "%s: otg_dev->pcd NULL!\n", __func__);
1269 if (otg_dev->common_irq_installed) {
1270 //free_irq(_dev->irq, otg_dev);
1271 free_irq(platform_get_irq(_dev,0), otg_dev );
1273 DWC_DEBUGPL(DBG_ANY, "%s: There is no installed irq!\n", __func__);
1277 if (otg_dev->core_if) {
1278 dwc_otg_cil_remove(otg_dev->core_if);
1280 DWC_DEBUGPL(DBG_ANY, "%s: otg_dev->core_if NULL!\n", __func__);
1285 * Remove the device attributes
1287 dwc_otg_attr_remove(_dev);
1290 * Return the memory.
1292 if (otg_dev->os_dep.base) {
1293 iounmap(otg_dev->os_dep.base);
1298 * Clear the drvdata pointer.
1301 dwc_set_device_platform_data(_dev, 0);
1306 static const struct of_device_id usb20_otg_of_match[] = {
1308 .compatible = "rockchip,rk3188_usb20_otg",
1309 .data = &usb20otg_pdata[RK3188_USB_CTLR],
1312 .compatible = "rockchip,rk3288_usb20_otg",
1313 .data = &usb20otg_pdata[RK3288_USB_CTLR],
1318 MODULE_DEVICE_TABLE(of, usb20_otg_of_match);
1321 * This function is called when an lm_device is bound to a
1322 * dwc_otg_driver. It creates the driver components required to
1323 * control the device (CIL, HCD, and PCD) and it initializes the
1324 * device. The driver components are stored in a dwc_otg_device
1325 * structure. A reference to the dwc_otg_device is saved in the
1326 * lm_device. This allows the driver to access the dwc_otg_device
1327 * structure on subsequent calls to driver methods for this device.
1329 * @param _dev Bus device
1331 static int otg20_driver_probe(struct platform_device *_dev)
1335 struct resource *res_base;
1336 dwc_otg_device_t *dwc_otg_device;
1337 struct device *dev = &_dev->dev;
1338 struct device_node *node = _dev->dev.of_node;
1339 struct dwc_otg_platform_data *pldata;
1340 struct usb20otg_pdata_id *p;
1341 const struct of_device_id *match =
1342 of_match_device(of_match_ptr( usb20_otg_of_match ), &_dev->dev);
1345 p = (struct usb20otg_pdata_id *)match->data;
1347 dev_err(dev, "usb20otg match failed\n");
1351 dev->platform_data = p->pdata;
1352 // dev->platform_data = &usb20otg_pdata;
1353 pldata = dev->platform_data;
1357 dev_err(dev, "device node not found\n");
1360 /*todo : move to usbdev_rk-XX.c*/
1364 if(pldata->clock_init){
1365 pldata->clock_init(pldata);
1366 pldata->clock_enable(pldata, 1);
1369 if(pldata->phy_suspend)
1370 pldata->phy_suspend(pldata, USB_PHY_ENABLED);
1371 if(pldata->dwc_otg_uart_mode)
1372 pldata->dwc_otg_uart_mode(pldata, PHY_USB_MODE);
1373 if(pldata->soft_reset)
1374 pldata->soft_reset();
1377 res_base=platform_get_resource(_dev, IORESOURCE_MEM, 0);
1379 dwc_otg_device = DWC_ALLOC(sizeof(dwc_otg_device_t));
1381 if (!dwc_otg_device) {
1382 dev_err(&_dev->dev, "kmalloc of dwc_otg_device failed\n");
1387 memset(dwc_otg_device, 0, sizeof(*dwc_otg_device));
1388 dwc_otg_device->os_dep.reg_offset = 0xFFFFFFFF;
1391 * Map the DWC_otg Core memory into virtual address space.
1394 dwc_otg_device->os_dep.base = devm_ioremap_resource(dev, res_base);
1396 if (!dwc_otg_device->os_dep.base) {
1397 dev_err(&_dev->dev, "ioremap() failed\n");
1398 DWC_FREE(dwc_otg_device);
1402 dev_dbg(&_dev->dev, "base=0x%08x\n",
1403 (unsigned)dwc_otg_device->os_dep.base);
1406 * Initialize driver data to point to the global DWC_otg
1410 g_otgdev = dwc_otg_device;
1411 pldata->privdata = dwc_otg_device;
1412 dwc_otg_device->pldata = pldata;
1414 dwc_set_device_platform_data(_dev, dwc_otg_device);
1416 dev_dbg(&_dev->dev, "dwc_otg_device=0x%p\n", dwc_otg_device);
1418 dwc_otg_device->core_if = dwc_otg_cil_init(dwc_otg_device->os_dep.base);
1419 if (!dwc_otg_device->core_if) {
1420 dev_err(&_dev->dev, "CIL initialization failed!\n");
1425 dwc_otg_device->core_if->otg_dev = dwc_otg_device;
1427 * Attempt to ensure this device is really a DWC_otg Controller.
1428 * Read and verify the SNPSID register contents. The value should be
1429 * 0x45F42XXX or 0x45F42XXX, which corresponds to either "OT2" or "OTG3",
1430 * as in "OTG version 2.XX" or "OTG version 3.XX".
1433 if (((dwc_otg_get_gsnpsid(dwc_otg_device->core_if) & 0xFFFFF000) != 0x4F542000) &&
1434 ((dwc_otg_get_gsnpsid(dwc_otg_device->core_if) & 0xFFFFF000) != 0x4F543000)) {
1435 dev_err(&_dev->dev, "Bad value for SNPSID: 0x%08x\n",
1436 dwc_otg_get_gsnpsid(dwc_otg_device->core_if));
1442 * Validate parameter values.
1444 if (set_parameters(dwc_otg_device->core_if ,dwc_otg_module_params)) {
1450 * Create Device Attributes in sysfs
1452 dwc_otg_attr_create(_dev);
1455 * Disable the global interrupt until all the interrupt
1456 * handlers are installed.
1458 dwc_otg_disable_global_interrupts(dwc_otg_device->core_if);
1461 * Install the interrupt handler for the common interrupts before
1462 * enabling common interrupts in core_init below.
1464 irq = platform_get_irq(_dev,0);
1465 DWC_DEBUGPL(DBG_CIL, "registering (common) handler for irq%d\n",
1467 retval = request_irq(irq, dwc_otg_common_irq,
1468 IRQF_SHARED , "dwc_otg",
1471 DWC_ERROR("request of irq%d failed\n", irq);
1475 dwc_otg_device->common_irq_installed = 1;
1479 * Initialize the DWC_otg core.
1481 dwc_otg_core_init(dwc_otg_device->core_if);
1482 dwc_otg_device->core_if->usb_mode = 0;// TODO: Can be read from Device-Tree
1483 #ifndef DWC_HOST_ONLY
1485 * Initialize the PCD
1487 retval = pcd_init(_dev);
1489 DWC_ERROR("pcd_init failed\n");
1490 dwc_otg_device->pcd = NULL;
1494 #ifndef DWC_DEVICE_ONLY
1496 * Initialize the HCD
1498 retval = otg20_hcd_init(_dev);
1500 DWC_ERROR("hcd_init failed\n");
1501 dwc_otg_device->hcd = NULL;
1506 * Enable the global interrupt after all the interrupt
1507 * handlers are installed if there is no ADP support else
1508 * perform initial actions required for Internal ADP logic.
1510 if (!dwc_otg_get_param_adp_enable(dwc_otg_device->core_if))
1511 dwc_otg_enable_global_interrupts(dwc_otg_device->core_if);
1513 dwc_otg_adp_start(dwc_otg_device->core_if,
1514 dwc_otg_is_host_mode(dwc_otg_device->core_if));
1519 otg20_driver_remove(_dev);
1522 if(pldata->clock_enable)
1523 pldata->clock_enable(pldata, 0);
1528 static struct platform_driver dwc_otg_driver = {
1530 .name = (char *)dwc_otg20_driver_name,
1531 .of_match_table = of_match_ptr(usb20_otg_of_match),
1533 .probe = otg20_driver_probe,
1534 .remove = otg20_driver_remove,
1535 .suspend = dwc_otg_driver_suspend,
1536 .resume = dwc_otg_driver_resume,
1537 .shutdown = dwc_otg_driver_shutdown,
1542 * This function is called when the dwc_otg_driver is installed with the
1543 * insmod command. It registers the dwc_otg_driver structure with the
1544 * appropriate bus driver. This will cause the dwc_otg_driver_probe function
1545 * to be called. In addition, the bus driver will automatically expose
1546 * attributes defined for the device and driver in the special sysfs file
1551 static int __init dwc_otg_driver_init(void)
1556 #ifdef CONFIG_USB20_OTG
1558 printk(KERN_INFO "%s: version %s\n", dwc_otg20_driver_name,
1559 DWC_DRIVER_VERSION);
1561 retval = platform_driver_register(&dwc_otg_driver);
1563 printk(KERN_ERR "%s retval=%d\n", __func__, retval);
1567 error = driver_create_file(&dwc_otg_driver.driver, &driver_attr_version);
1568 error = driver_create_file(&dwc_otg_driver.driver, &driver_attr_debuglevel);
1569 error = driver_create_file(&dwc_otg_driver.driver, &driver_attr_dwc_otg_conn_en);
1570 error = driver_create_file(&dwc_otg_driver.driver, &driver_attr_vbus_status);
1571 error = driver_create_file(&dwc_otg_driver.driver, &driver_attr_force_usb_mode);
1576 #ifdef CONFIG_USB20_HOST
1577 printk(KERN_INFO "%s: version %s\n", dwc_host20_driver_name,
1578 DWC_DRIVER_VERSION);
1580 retval = platform_driver_register(&dwc_host_driver);
1582 printk(KERN_ERR "%s retval=%d\n", __func__, retval);
1586 error = driver_create_file(&dwc_host_driver.driver, &driver_attr_version);
1587 error = driver_create_file(&dwc_host_driver.driver, &driver_attr_debuglevel);
1592 module_init(dwc_otg_driver_init);
1595 * This function is called when the driver is removed from the kernel
1596 * with the rmmod command. The driver unregisters itself with its bus
1600 static void __exit dwc_otg_driver_cleanup(void)
1602 printk(KERN_DEBUG "dwc_otg_driver_cleanup()\n");
1604 #ifdef CONFIG_USB20_HOST
1606 driver_remove_file(&dwc_host_driver.driver, &driver_attr_debuglevel);
1607 driver_remove_file(&dwc_host_driver.driver, &driver_attr_version);
1608 platform_driver_unregister(&dwc_host_driver);
1609 printk(KERN_INFO "%s module removed\n", dwc_host20_driver_name);
1612 #ifdef CONFIG_USB20_OTG
1614 driver_remove_file(&dwc_otg_driver.driver, &driver_attr_dwc_otg_conn_en);
1615 driver_remove_file(&dwc_otg_driver.driver, &driver_attr_debuglevel);
1616 driver_remove_file(&dwc_otg_driver.driver, &driver_attr_version);
1617 driver_remove_file(&dwc_otg_driver.driver, &driver_attr_vbus_status);
1618 driver_remove_file(&dwc_otg_driver.driver, &driver_attr_force_usb_mode);
1619 platform_driver_unregister(&dwc_otg_driver);
1620 printk(KERN_INFO "%s module removed\n", dwc_otg20_driver_name);
1624 module_exit(dwc_otg_driver_cleanup);
1626 MODULE_DESCRIPTION(DWC_DRIVER_DESC);
1627 MODULE_AUTHOR("Synopsys Inc.");
1628 MODULE_LICENSE("GPL");
1630 module_param_named(otg_cap, dwc_otg_module_params.otg_cap, int, 0444);
1631 MODULE_PARM_DESC(otg_cap, "OTG Capabilities 0=HNP&SRP 1=SRP Only 2=None");
1632 module_param_named(opt, dwc_otg_module_params.opt, int, 0444);
1633 MODULE_PARM_DESC(opt, "OPT Mode");
1634 module_param_named(dma_enable, dwc_otg_module_params.dma_enable, int, 0444);
1635 MODULE_PARM_DESC(dma_enable, "DMA Mode 0=Slave 1=DMA enabled");
1637 module_param_named(dma_desc_enable, dwc_otg_module_params.dma_desc_enable, int,
1639 MODULE_PARM_DESC(dma_desc_enable,
1640 "DMA Desc Mode 0=Address DMA 1=DMA Descriptor enabled");
1642 module_param_named(dma_burst_size, dwc_otg_module_params.dma_burst_size, int,
1644 MODULE_PARM_DESC(dma_burst_size,
1645 "DMA Burst Size 1, 4, 8, 16, 32, 64, 128, 256");
1646 module_param_named(speed, dwc_otg_module_params.speed, int, 0444);
1647 MODULE_PARM_DESC(speed, "Speed 0=High Speed 1=Full Speed");
1648 module_param_named(host_support_fs_ls_low_power,
1649 dwc_otg_module_params.host_support_fs_ls_low_power, int,
1651 MODULE_PARM_DESC(host_support_fs_ls_low_power,
1652 "Support Low Power w/FS or LS 0=Support 1=Don't Support");
1653 module_param_named(host_ls_low_power_phy_clk,
1654 dwc_otg_module_params.host_ls_low_power_phy_clk, int, 0444);
1655 MODULE_PARM_DESC(host_ls_low_power_phy_clk,
1656 "Low Speed Low Power Clock 0=48Mhz 1=6Mhz");
1657 module_param_named(enable_dynamic_fifo,
1658 dwc_otg_module_params.enable_dynamic_fifo, int, 0444);
1659 MODULE_PARM_DESC(enable_dynamic_fifo, "0=cC Setting 1=Allow Dynamic Sizing");
1660 module_param_named(data_fifo_size, dwc_otg_module_params.data_fifo_size, int,
1662 MODULE_PARM_DESC(data_fifo_size,
1663 "Total number of words in the data FIFO memory 32-32768");
1664 module_param_named(dev_rx_fifo_size, dwc_otg_module_params.dev_rx_fifo_size,
1666 MODULE_PARM_DESC(dev_rx_fifo_size, "Number of words in the Rx FIFO 16-32768");
1667 module_param_named(dev_nperio_tx_fifo_size,
1668 dwc_otg_module_params.dev_nperio_tx_fifo_size, int, 0444);
1669 MODULE_PARM_DESC(dev_nperio_tx_fifo_size,
1670 "Number of words in the non-periodic Tx FIFO 16-32768");
1671 module_param_named(dev_perio_tx_fifo_size_1,
1672 dwc_otg_module_params.dev_perio_tx_fifo_size[0], int, 0444);
1673 MODULE_PARM_DESC(dev_perio_tx_fifo_size_1,
1674 "Number of words in the periodic Tx FIFO 4-768");
1675 module_param_named(dev_perio_tx_fifo_size_2,
1676 dwc_otg_module_params.dev_perio_tx_fifo_size[1], int, 0444);
1677 MODULE_PARM_DESC(dev_perio_tx_fifo_size_2,
1678 "Number of words in the periodic Tx FIFO 4-768");
1679 module_param_named(dev_perio_tx_fifo_size_3,
1680 dwc_otg_module_params.dev_perio_tx_fifo_size[2], int, 0444);
1681 MODULE_PARM_DESC(dev_perio_tx_fifo_size_3,
1682 "Number of words in the periodic Tx FIFO 4-768");
1683 module_param_named(dev_perio_tx_fifo_size_4,
1684 dwc_otg_module_params.dev_perio_tx_fifo_size[3], int, 0444);
1685 MODULE_PARM_DESC(dev_perio_tx_fifo_size_4,
1686 "Number of words in the periodic Tx FIFO 4-768");
1687 module_param_named(dev_perio_tx_fifo_size_5,
1688 dwc_otg_module_params.dev_perio_tx_fifo_size[4], int, 0444);
1689 MODULE_PARM_DESC(dev_perio_tx_fifo_size_5,
1690 "Number of words in the periodic Tx FIFO 4-768");
1691 module_param_named(dev_perio_tx_fifo_size_6,
1692 dwc_otg_module_params.dev_perio_tx_fifo_size[5], int, 0444);
1693 MODULE_PARM_DESC(dev_perio_tx_fifo_size_6,
1694 "Number of words in the periodic Tx FIFO 4-768");
1695 module_param_named(dev_perio_tx_fifo_size_7,
1696 dwc_otg_module_params.dev_perio_tx_fifo_size[6], int, 0444);
1697 MODULE_PARM_DESC(dev_perio_tx_fifo_size_7,
1698 "Number of words in the periodic Tx FIFO 4-768");
1699 module_param_named(dev_perio_tx_fifo_size_8,
1700 dwc_otg_module_params.dev_perio_tx_fifo_size[7], int, 0444);
1701 MODULE_PARM_DESC(dev_perio_tx_fifo_size_8,
1702 "Number of words in the periodic Tx FIFO 4-768");
1703 module_param_named(dev_perio_tx_fifo_size_9,
1704 dwc_otg_module_params.dev_perio_tx_fifo_size[8], int, 0444);
1705 MODULE_PARM_DESC(dev_perio_tx_fifo_size_9,
1706 "Number of words in the periodic Tx FIFO 4-768");
1707 module_param_named(dev_perio_tx_fifo_size_10,
1708 dwc_otg_module_params.dev_perio_tx_fifo_size[9], int, 0444);
1709 MODULE_PARM_DESC(dev_perio_tx_fifo_size_10,
1710 "Number of words in the periodic Tx FIFO 4-768");
1711 module_param_named(dev_perio_tx_fifo_size_11,
1712 dwc_otg_module_params.dev_perio_tx_fifo_size[10], int, 0444);
1713 MODULE_PARM_DESC(dev_perio_tx_fifo_size_11,
1714 "Number of words in the periodic Tx FIFO 4-768");
1715 module_param_named(dev_perio_tx_fifo_size_12,
1716 dwc_otg_module_params.dev_perio_tx_fifo_size[11], int, 0444);
1717 MODULE_PARM_DESC(dev_perio_tx_fifo_size_12,
1718 "Number of words in the periodic Tx FIFO 4-768");
1719 module_param_named(dev_perio_tx_fifo_size_13,
1720 dwc_otg_module_params.dev_perio_tx_fifo_size[12], int, 0444);
1721 MODULE_PARM_DESC(dev_perio_tx_fifo_size_13,
1722 "Number of words in the periodic Tx FIFO 4-768");
1723 module_param_named(dev_perio_tx_fifo_size_14,
1724 dwc_otg_module_params.dev_perio_tx_fifo_size[13], int, 0444);
1725 MODULE_PARM_DESC(dev_perio_tx_fifo_size_14,
1726 "Number of words in the periodic Tx FIFO 4-768");
1727 module_param_named(dev_perio_tx_fifo_size_15,
1728 dwc_otg_module_params.dev_perio_tx_fifo_size[14], int, 0444);
1729 MODULE_PARM_DESC(dev_perio_tx_fifo_size_15,
1730 "Number of words in the periodic Tx FIFO 4-768");
1731 module_param_named(host_rx_fifo_size, dwc_otg_module_params.host_rx_fifo_size,
1733 MODULE_PARM_DESC(host_rx_fifo_size, "Number of words in the Rx FIFO 16-32768");
1734 module_param_named(host_nperio_tx_fifo_size,
1735 dwc_otg_module_params.host_nperio_tx_fifo_size, int, 0444);
1736 MODULE_PARM_DESC(host_nperio_tx_fifo_size,
1737 "Number of words in the non-periodic Tx FIFO 16-32768");
1738 module_param_named(host_perio_tx_fifo_size,
1739 dwc_otg_module_params.host_perio_tx_fifo_size, int, 0444);
1740 MODULE_PARM_DESC(host_perio_tx_fifo_size,
1741 "Number of words in the host periodic Tx FIFO 16-32768");
1742 module_param_named(max_transfer_size, dwc_otg_module_params.max_transfer_size,
1744 /** @todo Set the max to 512K, modify checks */
1745 MODULE_PARM_DESC(max_transfer_size,
1746 "The maximum transfer size supported in bytes 2047-65535");
1747 module_param_named(max_packet_count, dwc_otg_module_params.max_packet_count,
1749 MODULE_PARM_DESC(max_packet_count,
1750 "The maximum number of packets in a transfer 15-511");
1751 module_param_named(host_channels, dwc_otg_module_params.host_channels, int,
1753 MODULE_PARM_DESC(host_channels,
1754 "The number of host channel registers to use 1-16");
1755 module_param_named(dev_endpoints, dwc_otg_module_params.dev_endpoints, int,
1757 MODULE_PARM_DESC(dev_endpoints,
1758 "The number of endpoints in addition to EP0 available for device mode 1-15");
1759 module_param_named(phy_type, dwc_otg_module_params.phy_type, int, 0444);
1760 MODULE_PARM_DESC(phy_type, "0=Reserved 1=UTMI+ 2=ULPI");
1761 module_param_named(phy_utmi_width, dwc_otg_module_params.phy_utmi_width, int,
1763 MODULE_PARM_DESC(phy_utmi_width, "Specifies the UTMI+ Data Width 8 or 16 bits");
1764 module_param_named(phy_ulpi_ddr, dwc_otg_module_params.phy_ulpi_ddr, int, 0444);
1765 MODULE_PARM_DESC(phy_ulpi_ddr,
1766 "ULPI at double or single data rate 0=Single 1=Double");
1767 module_param_named(phy_ulpi_ext_vbus, dwc_otg_module_params.phy_ulpi_ext_vbus,
1769 MODULE_PARM_DESC(phy_ulpi_ext_vbus,
1770 "ULPI PHY using internal or external vbus 0=Internal");
1771 module_param_named(i2c_enable, dwc_otg_module_params.i2c_enable, int, 0444);
1772 MODULE_PARM_DESC(i2c_enable, "FS PHY Interface");
1773 module_param_named(ulpi_fs_ls, dwc_otg_module_params.ulpi_fs_ls, int, 0444);
1774 MODULE_PARM_DESC(ulpi_fs_ls, "ULPI PHY FS/LS mode only");
1775 module_param_named(ts_dline, dwc_otg_module_params.ts_dline, int, 0444);
1776 MODULE_PARM_DESC(ts_dline, "Term select Dline pulsing for all PHYs");
1777 module_param_named(debug, g_dbg_lvl, int, 0444);
1778 MODULE_PARM_DESC(debug, "");
1780 module_param_named(en_multiple_tx_fifo,
1781 dwc_otg_module_params.en_multiple_tx_fifo, int, 0444);
1782 MODULE_PARM_DESC(en_multiple_tx_fifo,
1783 "Dedicated Non Periodic Tx FIFOs 0=disabled 1=enabled");
1784 module_param_named(dev_tx_fifo_size_1,
1785 dwc_otg_module_params.dev_tx_fifo_size[0], int, 0444);
1786 MODULE_PARM_DESC(dev_tx_fifo_size_1, "Number of words in the Tx FIFO 4-768");
1787 module_param_named(dev_tx_fifo_size_2,
1788 dwc_otg_module_params.dev_tx_fifo_size[1], int, 0444);
1789 MODULE_PARM_DESC(dev_tx_fifo_size_2, "Number of words in the Tx FIFO 4-768");
1790 module_param_named(dev_tx_fifo_size_3,
1791 dwc_otg_module_params.dev_tx_fifo_size[2], int, 0444);
1792 MODULE_PARM_DESC(dev_tx_fifo_size_3, "Number of words in the Tx FIFO 4-768");
1793 module_param_named(dev_tx_fifo_size_4,
1794 dwc_otg_module_params.dev_tx_fifo_size[3], int, 0444);
1795 MODULE_PARM_DESC(dev_tx_fifo_size_4, "Number of words in the Tx FIFO 4-768");
1796 module_param_named(dev_tx_fifo_size_5,
1797 dwc_otg_module_params.dev_tx_fifo_size[4], int, 0444);
1798 MODULE_PARM_DESC(dev_tx_fifo_size_5, "Number of words in the Tx FIFO 4-768");
1799 module_param_named(dev_tx_fifo_size_6,
1800 dwc_otg_module_params.dev_tx_fifo_size[5], int, 0444);
1801 MODULE_PARM_DESC(dev_tx_fifo_size_6, "Number of words in the Tx FIFO 4-768");
1802 module_param_named(dev_tx_fifo_size_7,
1803 dwc_otg_module_params.dev_tx_fifo_size[6], int, 0444);
1804 MODULE_PARM_DESC(dev_tx_fifo_size_7, "Number of words in the Tx FIFO 4-768");
1805 module_param_named(dev_tx_fifo_size_8,
1806 dwc_otg_module_params.dev_tx_fifo_size[7], int, 0444);
1807 MODULE_PARM_DESC(dev_tx_fifo_size_8, "Number of words in the Tx FIFO 4-768");
1808 module_param_named(dev_tx_fifo_size_9,
1809 dwc_otg_module_params.dev_tx_fifo_size[8], int, 0444);
1810 MODULE_PARM_DESC(dev_tx_fifo_size_9, "Number of words in the Tx FIFO 4-768");
1811 module_param_named(dev_tx_fifo_size_10,
1812 dwc_otg_module_params.dev_tx_fifo_size[9], int, 0444);
1813 MODULE_PARM_DESC(dev_tx_fifo_size_10, "Number of words in the Tx FIFO 4-768");
1814 module_param_named(dev_tx_fifo_size_11,
1815 dwc_otg_module_params.dev_tx_fifo_size[10], int, 0444);
1816 MODULE_PARM_DESC(dev_tx_fifo_size_11, "Number of words in the Tx FIFO 4-768");
1817 module_param_named(dev_tx_fifo_size_12,
1818 dwc_otg_module_params.dev_tx_fifo_size[11], int, 0444);
1819 MODULE_PARM_DESC(dev_tx_fifo_size_12, "Number of words in the Tx FIFO 4-768");
1820 module_param_named(dev_tx_fifo_size_13,
1821 dwc_otg_module_params.dev_tx_fifo_size[12], int, 0444);
1822 MODULE_PARM_DESC(dev_tx_fifo_size_13, "Number of words in the Tx FIFO 4-768");
1823 module_param_named(dev_tx_fifo_size_14,
1824 dwc_otg_module_params.dev_tx_fifo_size[13], int, 0444);
1825 MODULE_PARM_DESC(dev_tx_fifo_size_14, "Number of words in the Tx FIFO 4-768");
1826 module_param_named(dev_tx_fifo_size_15,
1827 dwc_otg_module_params.dev_tx_fifo_size[14], int, 0444);
1828 MODULE_PARM_DESC(dev_tx_fifo_size_15, "Number of words in the Tx FIFO 4-768");
1830 module_param_named(thr_ctl, dwc_otg_module_params.thr_ctl, int, 0444);
1831 MODULE_PARM_DESC(thr_ctl,
1832 "Thresholding enable flag bit 0 - non ISO Tx thr., 1 - ISO Tx thr., 2 - Rx thr.- bit 0=disabled 1=enabled");
1833 module_param_named(tx_thr_length, dwc_otg_module_params.tx_thr_length, int,
1835 MODULE_PARM_DESC(tx_thr_length, "Tx Threshold length in 32 bit DWORDs");
1836 module_param_named(rx_thr_length, dwc_otg_module_params.rx_thr_length, int,
1838 MODULE_PARM_DESC(rx_thr_length, "Rx Threshold length in 32 bit DWORDs");
1840 module_param_named(pti_enable, dwc_otg_module_params.pti_enable, int, 0444);
1841 module_param_named(mpi_enable, dwc_otg_module_params.mpi_enable, int, 0444);
1842 module_param_named(lpm_enable, dwc_otg_module_params.lpm_enable, int, 0444);
1843 MODULE_PARM_DESC(lpm_enable, "LPM Enable 0=LPM Disabled 1=LPM Enabled");
1845 module_param_named(besl_enable, dwc_otg_module_params.besl_enable, int, 0444);
1846 MODULE_PARM_DESC(besl_enable, "BESL Enable 0=BESL Disabled 1=BESL Enabled");
1847 module_param_named(baseline_besl, dwc_otg_module_params.baseline_besl, int, 0444);
1848 MODULE_PARM_DESC(baseline_besl, "Set the baseline besl value");
1849 module_param_named(deep_besl, dwc_otg_module_params.deep_besl, int, 0444);
1850 MODULE_PARM_DESC(deep_besl, "Set the deep besl value");
1852 module_param_named(ic_usb_cap, dwc_otg_module_params.ic_usb_cap, int, 0444);
1853 MODULE_PARM_DESC(ic_usb_cap,
1854 "IC_USB Capability 0=IC_USB Disabled 1=IC_USB Enabled");
1855 module_param_named(ahb_thr_ratio, dwc_otg_module_params.ahb_thr_ratio, int,
1857 MODULE_PARM_DESC(ahb_thr_ratio, "AHB Threshold Ratio");
1858 module_param_named(power_down, dwc_otg_module_params.power_down, int, 0444);
1859 MODULE_PARM_DESC(power_down, "Power Down Mode");
1860 module_param_named(reload_ctl, dwc_otg_module_params.reload_ctl, int, 0444);
1861 MODULE_PARM_DESC(reload_ctl, "HFIR Reload Control");
1862 module_param_named(dev_out_nak, dwc_otg_module_params.dev_out_nak, int, 0444);
1863 MODULE_PARM_DESC(dev_out_nak, "Enable Device OUT NAK");
1864 module_param_named(cont_on_bna, dwc_otg_module_params.cont_on_bna, int, 0444);
1865 MODULE_PARM_DESC(cont_on_bna, "Enable Enable Continue on BNA");
1866 module_param_named(ahb_single, dwc_otg_module_params.ahb_single, int, 0444);
1867 MODULE_PARM_DESC(ahb_single, "Enable AHB Single Support");
1868 module_param_named(adp_enable, dwc_otg_module_params.adp_enable, int, 0444);
1869 MODULE_PARM_DESC(adp_enable, "ADP Enable 0=ADP Disabled 1=ADP Enabled");
1870 module_param_named(otg_ver, dwc_otg_module_params.otg_ver, int, 0444);
1871 MODULE_PARM_DESC(otg_ver, "OTG revision supported 0=OTG 1.3 1=OTG 2.0");
1873 /** @page "Module Parameters"
1875 * The following parameters may be specified when starting the module.
1876 * These parameters define how the DWC_otg controller should be
1877 * configured. Parameter values are passed to the CIL initialization
1878 * function dwc_otg_cil_init
1880 * Example: <code>modprobe dwc_otg speed=1 otg_cap=1</code>
1884 <tr><td>Parameter Name</td><td>Meaning</td></tr>
1888 <td>Specifies the OTG capabilities. The driver will automatically detect the
1889 value for this parameter if none is specified.
1890 - 0: HNP and SRP capable (default, if available)
1891 - 1: SRP Only capable
1892 - 2: No HNP/SRP capable
1897 <td>Specifies whether to use slave or DMA mode for accessing the data FIFOs.
1898 The driver will automatically detect the value for this parameter if none is
1901 - 1: DMA (default, if available)
1905 <td>dma_burst_size</td>
1906 <td>The DMA Burst size (applicable only for External DMA Mode).
1907 - Values: 1, 4, 8 16, 32, 64, 128, 256 (default 32)
1912 <td>Specifies the maximum speed of operation in host and device mode. The
1913 actual speed depends on the speed of the attached device and the value of
1915 - 0: High Speed (default)
1920 <td>host_support_fs_ls_low_power</td>
1921 <td>Specifies whether low power mode is supported when attached to a Full
1922 Speed or Low Speed device in host mode.
1923 - 0: Don't support low power mode (default)
1924 - 1: Support low power mode
1928 <td>host_ls_low_power_phy_clk</td>
1929 <td>Specifies the PHY clock rate in low power mode when connected to a Low
1930 Speed device in host mode. This parameter is applicable only if
1931 HOST_SUPPORT_FS_LS_LOW_POWER is enabled.
1932 - 0: 48 MHz (default)
1937 <td>enable_dynamic_fifo</td>
1938 <td> Specifies whether FIFOs may be resized by the driver software.
1939 - 0: Use cC FIFO size parameters
1940 - 1: Allow dynamic FIFO sizing (default)
1944 <td>data_fifo_size</td>
1945 <td>Total number of 4-byte words in the data FIFO memory. This memory
1946 includes the Rx FIFO, non-periodic Tx FIFO, and periodic Tx FIFOs.
1947 - Values: 32 to 32768 (default 8192)
1949 Note: The total FIFO memory depth in the FPGA configuration is 8192.
1953 <td>dev_rx_fifo_size</td>
1954 <td>Number of 4-byte words in the Rx FIFO in device mode when dynamic
1955 FIFO sizing is enabled.
1956 - Values: 16 to 32768 (default 1064)
1960 <td>dev_nperio_tx_fifo_size</td>
1961 <td>Number of 4-byte words in the non-periodic Tx FIFO in device mode when
1962 dynamic FIFO sizing is enabled.
1963 - Values: 16 to 32768 (default 1024)
1967 <td>dev_perio_tx_fifo_size_n (n = 1 to 15)</td>
1968 <td>Number of 4-byte words in each of the periodic Tx FIFOs in device mode
1969 when dynamic FIFO sizing is enabled.
1970 - Values: 4 to 768 (default 256)
1974 <td>host_rx_fifo_size</td>
1975 <td>Number of 4-byte words in the Rx FIFO in host mode when dynamic FIFO
1977 - Values: 16 to 32768 (default 1024)
1981 <td>host_nperio_tx_fifo_size</td>
1982 <td>Number of 4-byte words in the non-periodic Tx FIFO in host mode when
1983 dynamic FIFO sizing is enabled in the core.
1984 - Values: 16 to 32768 (default 1024)
1988 <td>host_perio_tx_fifo_size</td>
1989 <td>Number of 4-byte words in the host periodic Tx FIFO when dynamic FIFO
1991 - Values: 16 to 32768 (default 1024)
1995 <td>max_transfer_size</td>
1996 <td>The maximum transfer size supported in bytes.
1997 - Values: 2047 to 65,535 (default 65,535)
2001 <td>max_packet_count</td>
2002 <td>The maximum number of packets in a transfer.
2003 - Values: 15 to 511 (default 511)
2007 <td>host_channels</td>
2008 <td>The number of host channel registers to use.
2009 - Values: 1 to 16 (default 12)
2011 Note: The FPGA configuration supports a maximum of 12 host channels.
2015 <td>dev_endpoints</td>
2016 <td>The number of endpoints in addition to EP0 available for device mode
2018 - Values: 1 to 15 (default 6 IN and OUT)
2020 Note: The FPGA configuration supports a maximum of 6 IN and OUT endpoints in
2026 <td>Specifies the type of PHY interface to use. By default, the driver will
2027 automatically detect the phy_type.
2029 - 1: UTMI+ (default, if available)
2034 <td>phy_utmi_width</td>
2035 <td>Specifies the UTMI+ Data Width. This parameter is applicable for a
2036 phy_type of UTMI+. Also, this parameter is applicable only if the
2037 OTG_HSPHY_WIDTH cC parameter was set to "8 and 16 bits", meaning that the
2038 core has been configured to work at either data path width.
2039 - Values: 8 or 16 bits (default 16)
2043 <td>phy_ulpi_ddr</td>
2044 <td>Specifies whether the ULPI operates at double or single data rate. This
2045 parameter is only applicable if phy_type is ULPI.
2046 - 0: single data rate ULPI interface with 8 bit wide data bus (default)
2047 - 1: double data rate ULPI interface with 4 bit wide data bus
2052 <td>Specifies whether to use the I2C interface for full speed PHY. This
2053 parameter is only applicable if PHY_TYPE is FS.
2054 - 0: Disabled (default)
2060 <td>Specifies whether to use ULPI FS/LS mode only.
2061 - 0: Disabled (default)
2067 <td>Specifies whether term select D-Line pulsing for all PHYs is enabled.
2068 - 0: Disabled (default)
2073 <td>en_multiple_tx_fifo</td>
2074 <td>Specifies whether dedicatedto tx fifos are enabled for non periodic IN EPs.
2075 The driver will automatically detect the value for this parameter if none is
2078 - 1: Enabled (default, if available)
2082 <td>dev_tx_fifo_size_n (n = 1 to 15)</td>
2083 <td>Number of 4-byte words in each of the Tx FIFOs in device mode
2084 when dynamic FIFO sizing is enabled.
2085 - Values: 4 to 768 (default 256)
2089 <td>tx_thr_length</td>
2090 <td>Transmit Threshold length in 32 bit double words
2091 - Values: 8 to 128 (default 64)
2095 <td>rx_thr_length</td>
2096 <td>Receive Threshold length in 32 bit double words
2097 - Values: 8 to 128 (default 64)
2102 <td>Specifies whether to enable Thresholding for Device mode. Bits 0, 1, 2 of
2103 this parmater specifies if thresholding is enabled for non-Iso Tx, Iso Tx and
2104 Rx transfers accordingly.
2105 The driver will automatically detect the value for this parameter if none is
2107 - Values: 0 to 7 (default 0)
2108 Bit values indicate:
2109 - 0: Thresholding disabled
2110 - 1: Thresholding enabled
2114 <td>dma_desc_enable</td>
2115 <td>Specifies whether to enable Descriptor DMA mode.
2116 The driver will automatically detect the value for this parameter if none is
2118 - 0: Descriptor DMA disabled
2119 - 1: Descriptor DMA (default, if available)
2124 <td>Specifies whether to enable MPI enhancement mode.
2125 The driver will automatically detect the value for this parameter if none is
2127 - 0: MPI disabled (default)
2133 <td>Specifies whether to enable PTI enhancement support.
2134 The driver will automatically detect the value for this parameter if none is
2136 - 0: PTI disabled (default)
2142 <td>Specifies whether to enable LPM support.
2143 The driver will automatically detect the value for this parameter if none is
2146 - 1: LPM enable (default, if available)
2150 <td>besl_enable</td>
2151 <td>Specifies whether to enable LPM Errata support.
2152 The driver will automatically detect the value for this parameter if none is
2154 - 0: LPM Errata disabled (default)
2155 - 1: LPM Errata enable
2159 <td>baseline_besl</td>
2160 <td>Specifies the baseline besl value.
2161 - Values: 0 to 15 (default 0)
2166 <td>Specifies the deep besl value.
2167 - Values: 0 to 15 (default 15)
2172 <td>Specifies whether to enable IC_USB capability.
2173 The driver will automatically detect the value for this parameter if none is
2175 - 0: IC_USB disabled (default, if available)
2180 <td>ahb_thr_ratio</td>
2181 <td>Specifies AHB Threshold ratio.
2182 - Values: 0 to 3 (default 0)
2187 <td>Specifies Power Down(Hibernation) Mode.
2188 The driver will automatically detect the value for this parameter if none is
2190 - 0: Power Down disabled (default)
2191 - 2: Power Down enabled
2196 <td>Specifies whether dynamic reloading of the HFIR register is allowed during
2197 run time. The driver will automatically detect the value for this parameter if
2198 none is specified. In case the HFIR value is reloaded when HFIR.RldCtrl == 1'b0
2199 the core might misbehave.
2200 - 0: Reload Control disabled (default)
2201 - 1: Reload Control enabled
2205 <td>dev_out_nak</td>
2206 <td>Specifies whether Device OUT NAK enhancement enabled or no.
2207 The driver will automatically detect the value for this parameter if
2208 none is specified. This parameter is valid only when OTG_EN_DESC_DMA == 1
\92b1.
2209 - 0: The core does not set NAK after Bulk OUT transfer complete (default)
2210 - 1: The core sets NAK after Bulk OUT transfer complete
2214 <td>cont_on_bna</td>
2215 <td>Specifies whether Enable Continue on BNA enabled or no.
2216 After receiving BNA interrupt the core disables the endpoint,when the
2217 endpoint is re-enabled by the application the
2218 - 0: Core starts processing from the DOEPDMA descriptor (default)
2219 - 1: Core starts processing from the descriptor which received the BNA.
2220 This parameter is valid only when OTG_EN_DESC_DMA == 1
\92b1.
2225 <td>This bit when programmed supports SINGLE transfers for remainder data
2226 in a transfer for DMA mode of operation.
2227 - 0: The remainder data will be sent using INCR burst size (default)
2228 - 1: The remainder data will be sent using SINGLE burst size.
2233 <td>Specifies whether ADP feature is enabled.
2234 The driver will automatically detect the value for this parameter if none is
2236 - 0: ADP feature disabled (default)
2237 - 1: ADP feature enabled
2242 <td>Specifies whether OTG is performing as USB OTG Revision 2.0 or Revision 1.3
2244 - 0: OTG 2.0 support disabled (default)
2245 - 1: OTG 2.0 support enabled