3 #include "usbdev_grf_regs.h"
4 #include "dwc_otg_regs.h"
5 static struct dwc_otg_control_usb *control_usb;
7 #ifdef CONFIG_USB20_OTG
8 static void usb20otg_hw_init(void)
10 #ifndef CONFIG_USB20_HOST
12 control_usb->grf_uoc2_base->CON2 = (0x01<<2)|((0x01<<2)<<16);
14 control_usb->grf_uoc2_base->CON3 = 0x2A|(0x3F<<16);
16 /* usb phy config init
17 * usb phy enter usb mode */
18 control_usb->grf_uoc0_base->CON3 = (0x00c0 << 16);
20 /* other haredware init,include:
21 * DRV_VBUS GPIO init */
22 if(gpio_get_value(control_usb->otg_gpios->gpio)){
23 gpio_set_value(control_usb->otg_gpios->gpio, 0);
27 static void usb20otg_phy_suspend(void* pdata, int suspend)
29 struct dwc_otg_platform_data *usbpdata=pdata;
33 control_usb->grf_uoc0_base->CON2 = (0x01<<2)|((0x01<<2)<<16);
35 control_usb->grf_uoc0_base->CON3 = 0x2A|(0x3F<<16);
36 usbpdata->phy_status = 1;
39 control_usb->grf_uoc0_base->CON2 = ((0x01<<2)<<16);
40 usbpdata->phy_status = 0;
44 static void usb20otg_soft_reset(void)
46 rk3288_cru_set_soft_reset(RK3288_SOFT_RST_USBOTG_H, true);
47 rk3288_cru_set_soft_reset(RK3288_SOFT_RST_USBOTGPHY, true);
48 rk3288_cru_set_soft_reset(RK3288_SOFT_RST_USBOTGC, true);
51 rk3288_cru_set_soft_reset(RK3288_SOFT_RST_USBOTG_H, false);
52 rk3288_cru_set_soft_reset(RK3288_SOFT_RST_USBOTGPHY, false);
53 rk3288_cru_set_soft_reset(RK3288_SOFT_RST_USBOTGC, false);
57 static void usb20otg_clock_init(void* pdata)
59 struct dwc_otg_platform_data *usbpdata=pdata;
60 struct clk* ahbclk,*phyclk;
62 ahbclk = devm_clk_get(usbpdata->dev, "hclk_usb0");
64 dev_err(usbpdata->dev, "Failed to get hclk_usb0\n");
68 phyclk = devm_clk_get(usbpdata->dev, "clk_usbphy0");
70 dev_err(usbpdata->dev, "Failed to get clk_usbphy0\n");
74 usbpdata->phyclk = phyclk;
75 usbpdata->ahbclk = ahbclk;
78 static void usb20otg_clock_enable(void* pdata, int enable)
80 struct dwc_otg_platform_data *usbpdata=pdata;
83 clk_prepare_enable(usbpdata->ahbclk);
84 clk_prepare_enable(usbpdata->phyclk);
86 clk_disable_unprepare(usbpdata->ahbclk);
87 clk_disable_unprepare(usbpdata->phyclk);
91 static int usb20otg_get_status(int id)
96 case USB_STATUS_BVABLID:
98 ret = control_usb->grf_soc_status2_rk3288->otg_bvalid;
100 case USB_STATUS_DPDM:
102 ret = control_usb->grf_soc_status2_rk3288->otg_linestate;
106 ret = control_usb->grf_soc_status2_rk3288->otg_iddig;
109 ret = control_usb->chip_id;
111 case USB_REMOTE_WAKEUP:
112 ret = control_usb->remote_wakeup;
115 ret = control_usb->usb_irq_wakeup;
124 #ifdef CONFIG_RK_USB_UART
125 static void dwc_otg_uart_mode(void* pdata, int enter_usb_uart_mode)
127 if(1 == enter_usb_uart_mode){
128 /* bypass dm, enter uart mode*/
129 control_usb->grf_uoc0_base->CON3 = (0x00c0 | (0x00c0 << 16));
131 }else if(0 == enter_usb_uart_mode){
133 control_usb->grf_uoc0_base->CON3 = (0x00c0 << 16);
138 static void usb20otg_power_enable(int enable)
140 if(0 == enable){//disable otg_drv power
141 gpio_set_value(control_usb->otg_gpios->gpio, 0);
142 }else if(1 == enable){//enable otg_drv power
143 gpio_set_value(control_usb->otg_gpios->gpio, 1);
148 struct dwc_otg_platform_data usb20otg_pdata_rk3288 = {
153 .hw_init = usb20otg_hw_init,
154 .phy_suspend = usb20otg_phy_suspend,
155 .soft_reset = usb20otg_soft_reset,
156 .clock_init = usb20otg_clock_init,
157 .clock_enable = usb20otg_clock_enable,
158 .get_status = usb20otg_get_status,
159 .power_enable = usb20otg_power_enable,
160 #ifdef CONFIG_RK_USB_UART
161 .dwc_otg_uart_mode = dwc_otg_uart_mode,
163 .bc_detect_cb=usb20otg_battery_charger_detect_cb,
168 #ifdef CONFIG_USB20_HOST
170 static void usb20host_hw_init(void)
172 /* usb phy config init */
174 /* other haredware init,include:
175 * DRV_VBUS GPIO init */
176 if(!gpio_get_value(control_usb->host_gpios->gpio)){
177 gpio_set_value(control_usb->host_gpios->gpio, 1);
181 static void usb20host_phy_suspend(void* pdata, int suspend)
183 struct dwc_otg_platform_data *usbpdata=pdata;
186 // enable soft control
187 control_usb->grf_uoc2_base->CON2 = (0x01<<2)|((0x01<<2)<<16);
189 control_usb->grf_uoc2_base->CON3 = 0x2A|(0x3F<<16);
190 usbpdata->phy_status = 1;
193 control_usb->grf_uoc2_base->CON2 = ((0x01<<2)<<16);
194 usbpdata->phy_status = 0;
198 static void usb20host_soft_reset(void)
200 rk3288_cru_set_soft_reset(RK3288_SOFT_RST_USBHOST1_H, true);
201 rk3288_cru_set_soft_reset(RK3288_SOFT_RST_USBHOST1PHY, true);
202 rk3288_cru_set_soft_reset(RK3288_SOFT_RST_USBHOST1C, true);
205 rk3288_cru_set_soft_reset(RK3288_SOFT_RST_USBHOST1_H, false);
206 rk3288_cru_set_soft_reset(RK3288_SOFT_RST_USBHOST1PHY, false);
207 rk3288_cru_set_soft_reset(RK3288_SOFT_RST_USBHOST1C, false);
211 static void usb20host_clock_init(void* pdata)
213 struct dwc_otg_platform_data *usbpdata=pdata;
214 struct clk* ahbclk,*phyclk;
216 ahbclk = devm_clk_get(usbpdata->dev, "hclk_usb1");
217 if (IS_ERR(ahbclk)) {
218 dev_err(usbpdata->dev, "Failed to get hclk_usb1\n");
222 phyclk = devm_clk_get(usbpdata->dev, "clk_usbphy1");
223 if (IS_ERR(phyclk)) {
224 dev_err(usbpdata->dev, "Failed to get clk_usbphy1\n");
228 usbpdata->phyclk = phyclk;
229 usbpdata->ahbclk = ahbclk;
232 static void usb20host_clock_enable(void* pdata, int enable)
234 struct dwc_otg_platform_data *usbpdata=pdata;
237 clk_prepare_enable(usbpdata->ahbclk);
238 clk_prepare_enable(usbpdata->phyclk);
240 clk_disable_unprepare(usbpdata->ahbclk);
241 clk_disable_unprepare(usbpdata->phyclk);
245 static int usb20host_get_status(int id)
250 case USB_STATUS_BVABLID:
252 ret = control_usb->grf_soc_status2_rk3288->host1_bvalid;
254 case USB_STATUS_DPDM:
256 ret = control_usb->grf_soc_status2_rk3288->host1_linestate;
260 ret = control_usb->grf_soc_status2_rk3288->host1_iddig;
263 ret = control_usb->chip_id;
265 case USB_REMOTE_WAKEUP:
266 ret = control_usb->remote_wakeup;
269 ret = control_usb->usb_irq_wakeup;
278 static void usb20host_power_enable(int enable)
280 if(0 == enable){//disable host_drv power
281 //do not disable power in default
282 }else if(1 == enable){//enable host_drv power
283 gpio_set_value(control_usb->host_gpios->gpio, 1);
288 struct dwc_otg_platform_data usb20host_pdata_rk3288 = {
293 .hw_init = usb20host_hw_init,
294 .phy_suspend = usb20host_phy_suspend,
295 .soft_reset = usb20host_soft_reset,
296 .clock_init = usb20host_clock_init,
297 .clock_enable = usb20host_clock_enable,
298 .get_status = usb20host_get_status,
299 .power_enable = usb20host_power_enable,
304 #ifdef CONFIG_USB_EHCI_RKHSIC
305 static void rk_hsic_hw_init(void)
307 // usb phy config init
308 // hsic phy config init, set hsicphy_txsrtune
309 control_usb->grf_uoc3_base->CON0 = ((0xf<<6)<<16)|(0xf<<6);
311 /* other haredware init
312 * set common_on = 0, in suspend mode, otg/host PLL blocks remain powered
313 * for RK3288, use host1 (DWC_OTG) 480M phy clk
315 control_usb->grf_uoc2_base->CON0 = (1<<16)|0;
317 /* change INCR to INCR16 or INCR8(beats less than 16)
318 * or INCR4(beats less than 8) or SINGLE(beats less than 4)
320 control_usb->grf_uoc4_base->CON0 = 0x00ff00bc;
323 static void rk_hsic_clock_init(void* pdata)
325 /* By default, hsicphy_480m's parent is otg phy 480MHz clk
326 * rk3188 must use host phy 480MHz clk, because if otg bypass
327 * to uart mode, otg phy 480MHz clk will be closed automatically
329 struct rkehci_platform_data *usbpdata=pdata;
330 struct clk *ahbclk, *phyclk480m_hsic, *phyclk12m_hsic;
331 struct clk *phyclk_480m, *phyclk480m_parent;
333 phyclk480m_hsic = devm_clk_get(usbpdata->dev, "hsicphy_480m");
334 if (IS_ERR(phyclk480m_hsic)) {
335 dev_err(usbpdata->dev, "Failed to get hsicphy_480m\n");
339 phyclk12m_hsic = devm_clk_get(usbpdata->dev, "hsicphy_12m");
340 if (IS_ERR(phyclk12m_hsic)) {
341 dev_err(usbpdata->dev, "Failed to get hsicphy_12m\n");
345 phyclk480m_parent = devm_clk_get(usbpdata->dev, "hsic_usbphy2");
346 if (IS_ERR(phyclk480m_parent)) {
347 dev_err(usbpdata->dev, "Failed to get hsic_usbphy2\n");
351 phyclk_480m = devm_clk_get(usbpdata->dev, "usbphy_480m");
352 if (IS_ERR(phyclk_480m)) {
353 dev_err(usbpdata->dev, "Failed to get usbphy_480m\n");
357 ahbclk = devm_clk_get(usbpdata->dev, "hclk_hsic");
358 if (IS_ERR(ahbclk)) {
359 dev_err(usbpdata->dev, "Failed to get hclk_hsic\n");
363 clk_set_parent(phyclk_480m, phyclk480m_parent);
365 usbpdata->hclk_hsic = ahbclk;
366 usbpdata->hsic_phy_480m = phyclk480m_hsic;
367 usbpdata->hsic_phy_12m = phyclk12m_hsic;
370 static void rk_hsic_clock_enable(void* pdata, int enable)
372 struct rkehci_platform_data *usbpdata=pdata;
374 if(enable == usbpdata->clk_status)
377 clk_prepare_enable(usbpdata->hclk_hsic);
378 clk_prepare_enable(usbpdata->hsic_phy_480m);
379 clk_prepare_enable(usbpdata->hsic_phy_12m);
380 usbpdata->clk_status = 1;
382 clk_disable_unprepare(usbpdata->hclk_hsic);
383 clk_disable_unprepare(usbpdata->hsic_phy_480m);
384 clk_disable_unprepare(usbpdata->hsic_phy_12m);
385 usbpdata->clk_status = 0;
389 static void rk_hsic_soft_reset(void)
391 rk3288_cru_set_soft_reset(RK3288_SOFT_RST_HSIC, true);
392 rk3288_cru_set_soft_reset(RK3288_SOFT_RST_HSIC_AUX, true);
393 rk3288_cru_set_soft_reset(RK3288_SOFT_RST_HSICPHY, true);
396 rk3288_cru_set_soft_reset(RK3288_SOFT_RST_HSIC, false);
397 rk3288_cru_set_soft_reset(RK3288_SOFT_RST_HSIC_AUX, false);
398 rk3288_cru_set_soft_reset(RK3288_SOFT_RST_HSICPHY, false);
401 /* HSIC per-port reset */
402 control_usb->grf_uoc3_base->CON0 = ((1<<10)<<16)|(1<<10);
404 control_usb->grf_uoc3_base->CON0 = ((1<<10)<<16)|(0<<10);
408 struct rkehci_platform_data rkhsic_pdata_rk3288 = {
410 .hsic_phy_12m = NULL,
411 .hsic_phy_480m = NULL,
413 .hw_init = rk_hsic_hw_init,
414 .clock_init = rk_hsic_clock_init,
415 .clock_enable = rk_hsic_clock_enable,
416 .soft_reset = rk_hsic_soft_reset,
420 #ifdef CONFIG_USB_EHCI_RK
421 static void rk_ehci_hw_init(void)
423 /* usb phy config init */
425 /* DRV_VBUS GPIO init */
426 if(!gpio_get_value(control_usb->host_gpios->gpio)){
427 gpio_set_value(control_usb->host_gpios->gpio, 1);
431 static void rk_ehci_clock_init(void* pdata)
433 struct rkehci_platform_data *usbpdata=pdata;
434 struct clk* ahbclk,*phyclk;
436 ahbclk = devm_clk_get(usbpdata->dev, "hclk_usb2");
437 if (IS_ERR(ahbclk)) {
438 dev_err(usbpdata->dev, "Failed to get hclk_usb2\n");
442 phyclk = devm_clk_get(usbpdata->dev, "clk_usbphy2");
443 if (IS_ERR(phyclk)) {
444 dev_err(usbpdata->dev, "Failed to get clk_usbphy2\n");
448 usbpdata->phyclk = phyclk;
449 usbpdata->ahbclk = ahbclk;
452 static void rk_ehci_clock_enable(void* pdata, int enable)
454 struct rkehci_platform_data *usbpdata=pdata;
456 if(enable == usbpdata->clk_status)
459 clk_prepare_enable(usbpdata->ahbclk);
460 clk_prepare_enable(usbpdata->phyclk);
461 usbpdata->clk_status = 1;
463 clk_disable_unprepare(usbpdata->ahbclk);
464 clk_disable_unprepare(usbpdata->phyclk);
465 usbpdata->clk_status = 0;
469 static void rk_ehci_soft_reset(void)
471 rk3288_cru_set_soft_reset(RK3288_SOFT_RST_USBHOST0_H, true);
472 rk3288_cru_set_soft_reset(RK3288_SOFT_RST_USBHOST0PHY, true);
473 rk3288_cru_set_soft_reset(RK3288_SOFT_RST_USBHOST0C, true);
474 rk3288_cru_set_soft_reset(RK3288_SOFT_RST_USB_HOST0, true);
477 rk3288_cru_set_soft_reset(RK3288_SOFT_RST_USBHOST0_H, false);
478 rk3288_cru_set_soft_reset(RK3288_SOFT_RST_USBHOST0PHY, false);
479 rk3288_cru_set_soft_reset(RK3288_SOFT_RST_USBHOST0C, false);
480 rk3288_cru_set_soft_reset(RK3288_SOFT_RST_USB_HOST0, false);
484 struct rkehci_platform_data rkehci_pdata_rk3288 = {
488 .hw_init = rk_ehci_hw_init,
489 .clock_init = rk_ehci_clock_init,
490 .clock_enable = rk_ehci_clock_enable,
491 .soft_reset = rk_ehci_soft_reset,
495 #ifdef CONFIG_USB_OHCI_HCD_RK
496 static void rk_ohci_hw_init(void)
498 /* usb phy config init */
500 /* DRV_VBUS GPIO init */
501 if(!gpio_get_value(control_usb->host_gpios->gpio)){
502 gpio_set_value(control_usb->host_gpios->gpio, 1);
506 static void rk_ohci_clock_init(void* pdata)
508 struct rkehci_platform_data *usbpdata=pdata;
509 struct clk* ahbclk,*phyclk;
511 ahbclk =devm_clk_get(usbpdata->dev, "hclk_usb3");
512 if (IS_ERR(ahbclk)) {
513 dev_err(usbpdata->dev, "Failed to get hclk_usb3\n");
517 phyclk = devm_clk_get(usbpdata->dev, "clk_usbphy3");;
518 if (IS_ERR(phyclk)) {
519 dev_err(usbpdata->dev, "Failed to get clk_usbphy3\n");
523 usbpdata->phyclk = phyclk;
524 usbpdata->ahbclk = ahbclk;
527 static void rk_ohci_clock_enable(void* pdata, int enable)
529 struct rkehci_platform_data *usbpdata=pdata;
531 if(enable == usbpdata->clk_status)
534 clk_prepare_enable(usbpdata->ahbclk);
535 clk_prepare_enable(usbpdata->phyclk);
536 usbpdata->clk_status = 1;
538 clk_disable_unprepare(usbpdata->ahbclk);
539 clk_disable_unprepare(usbpdata->phyclk);
540 usbpdata->clk_status = 0;
544 static void rk_ohci_soft_reset(void)
548 struct rkehci_platform_data rkohci_pdata_rk3288 = {
552 .hw_init = rk_ohci_hw_init,
553 .clock_init = rk_ohci_clock_init,
554 .clock_enable = rk_ohci_clock_enable,
555 .soft_reset = rk_ohci_soft_reset,
559 /*********************************************************************
560 rk3288 usb detections
561 *********************************************************************/
563 #define WAKE_LOCK_TIMEOUT (HZ * 10)
564 inline static void do_wakeup(struct work_struct *work)
566 rk_send_wakeup_key(); // wake up the system
569 static void usb_battery_charger_detect_work(struct work_struct *work)
571 rk_usb_charger_status = usb_battery_charger_detect(0);
573 /********** handler for bvalid irq **********/
574 static irqreturn_t bvalid_irq_handler(int irq, void *dev_id)
577 control_usb->grf_uoc0_base->CON4 = (0x0008 | (0x0008 << 16));
579 #ifdef CONFIG_RK_USB_UART
580 /* usb otg dp/dm switch to usb phy */
581 dwc_otg_uart_mode(NULL, PHY_USB_MODE);
584 if(control_usb->usb_irq_wakeup){
585 wake_lock_timeout(&control_usb->usb_wakelock, WAKE_LOCK_TIMEOUT);
586 schedule_delayed_work(&control_usb->usb_det_wakeup_work, HZ/10);
589 rk_usb_charger_status = USB_BC_TYPE_SDP;
590 schedule_delayed_work(&control_usb->usb_charger_det_work, HZ/10);
595 /***** handler for otg id rise and fall edge *****/
596 static irqreturn_t id_irq_handler(int irq, void *dev_id)
598 unsigned int uoc_con;
601 uoc_con = control_usb->grf_uoc0_base->CON4;
603 if(uoc_con & (1<<5))//id rise
605 control_usb->grf_uoc0_base->CON4 = ((1<<5)|(1<<21)); //clear id rise irq pandding
608 if(uoc_con & (1<<7))//id fall
610 #ifdef CONFIG_RK_USB_UART
611 /* usb otg dp/dm switch to usb phy */
612 dwc_otg_uart_mode(NULL, PHY_USB_MODE);
614 control_usb->grf_uoc0_base->CON4 = ((1<<7)|(1<<23));//clear id fall irq pandding
617 if(control_usb->usb_irq_wakeup){
618 wake_lock_timeout(&control_usb->usb_wakelock, WAKE_LOCK_TIMEOUT);
619 schedule_delayed_work(&control_usb->usb_det_wakeup_work, HZ/10);
625 /***** handler for otg line status change *****/
627 static irqreturn_t line_irq_handler(int irq, void *dev_id)
631 if(control_usb->grf_uoc0_base->CON0 & 1<<15){
632 control_usb->grf_uoc0_base->CON0 = (1<<15 | 1<<31);
635 if(control_usb->grf_uoc1_base->CON0 & 1<<15){
636 control_usb->grf_uoc1_base->CON0 = (1<<15 | 1<<31);
639 if(control_usb->grf_uoc2_base->CON0 & 1<<15){
640 control_usb->grf_uoc2_base->CON0 = (1<<15 | 1<<31);
643 if(control_usb->usb_irq_wakeup){
644 wake_lock_timeout(&control_usb->usb_wakelock, WAKE_LOCK_TIMEOUT);
645 schedule_delayed_work(&control_usb->usb_det_wakeup_work, HZ/10);
651 /************* register usb detection irqs **************/
652 static int otg_irq_detect_init(struct platform_device *pdev)
657 if(control_usb->usb_irq_wakeup){
658 wake_lock_init(&control_usb->usb_wakelock, WAKE_LOCK_SUSPEND, "usb_detect");
659 INIT_DELAYED_WORK(&control_usb->usb_det_wakeup_work, do_wakeup);
662 /*register otg_bvalid irq*/
663 irq = platform_get_irq_byname(pdev, "otg_bvalid");
665 ret = request_irq(irq, bvalid_irq_handler, 0, "otg_bvalid", NULL);
667 dev_err(&pdev->dev, "request_irq %d failed!\n", irq);
670 control_usb->grf_uoc0_base->CON4 = 0x000c000c;// enable bvalid irq
671 if(control_usb->usb_irq_wakeup){
672 enable_irq_wake(irq);
677 /*register otg_id irq*/
678 irq = platform_get_irq_byname(pdev, "otg_id");
680 ret = request_irq(irq, id_irq_handler, 0, "otg_id", NULL);
682 dev_err(&pdev->dev, "request_irq %d failed!\n", irq);
685 control_usb->grf_uoc0_base->CON4 = 0x00f000f0;
686 if(control_usb->usb_irq_wakeup){
687 enable_irq_wake(irq);
692 /*register otg_linestate irq*/
693 irq = platform_get_irq_byname(pdev, "otg_linestate");
695 ret = request_irq(irq, line_irq_handler, 0, "otg_linestate", NULL);
697 dev_err(&pdev->dev, "request_irq %d failed!\n", irq);
700 control_usb->grf_uoc0_base->CON0 = 0xc000c000;
701 if(control_usb->usb_irq_wakeup){
702 enable_irq_wake(irq);
707 /*register host0_linestate irq*/
708 irq = platform_get_irq_byname(pdev, "host0_linestate");
710 ret = request_irq(irq, line_irq_handler, 0, "host0_linestate", NULL);
712 dev_err(&pdev->dev, "request_irq %d failed!\n", irq);
715 control_usb->grf_uoc1_base->CON0 = 0xc000c000;
716 if(control_usb->usb_irq_wakeup){
717 enable_irq_wake(irq);
722 /*register host1_linestate irq*/
723 irq = platform_get_irq_byname(pdev, "host1_linestate");
725 ret = request_irq(irq, line_irq_handler, 0, "host1_linestate", NULL);
727 dev_err(&pdev->dev, "request_irq %d failed!\n", irq);
730 control_usb->grf_uoc2_base->CON0 = 0xc000c000;
731 if(control_usb->usb_irq_wakeup){
732 enable_irq_wake(irq);
740 /********** end of rk3288 usb detections **********/
742 static int usb_grf_ioremap(struct platform_device *pdev)
745 struct resource *res;
746 void *grf_soc_status1;
747 void *grf_soc_status2;
748 void *grf_soc_status19;
749 void *grf_soc_status21;
756 res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
758 grf_soc_status1 = devm_ioremap_resource(&pdev->dev, res);
759 if (IS_ERR(grf_soc_status1)){
760 ret = PTR_ERR(grf_soc_status1);
763 control_usb->grf_soc_status1_rk3288 = (pGRF_SOC_STATUS1_RK3288)grf_soc_status1;
765 res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
767 grf_soc_status2 = devm_ioremap_resource(&pdev->dev, res);
768 if (IS_ERR(grf_soc_status2)){
769 ret = PTR_ERR(grf_soc_status2);
772 control_usb->grf_soc_status2_rk3288 = (pGRF_SOC_STATUS2_RK3288)grf_soc_status2;
774 res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
776 grf_soc_status19 = devm_ioremap_resource(&pdev->dev, res);
777 if (IS_ERR(grf_soc_status19)){
778 ret = PTR_ERR(grf_soc_status19);
781 control_usb->grf_soc_status19_rk3288 = (pGRF_SOC_STATUS19_RK3288)grf_soc_status19;
783 res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
785 grf_soc_status21 = devm_ioremap_resource(&pdev->dev, res);
786 if (IS_ERR(grf_soc_status21)){
787 ret = PTR_ERR(grf_soc_status21);
790 control_usb->grf_soc_status21_rk3288 = (pGRF_SOC_STATUS21_RK3288)grf_soc_status21;
792 res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
794 grf_uoc0_base = devm_ioremap_resource(&pdev->dev, res);
795 if (IS_ERR(grf_uoc0_base)){
796 ret = PTR_ERR(grf_uoc0_base);
799 control_usb->grf_uoc0_base = (pGRF_UOC0_REG)grf_uoc0_base;
801 res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
803 grf_uoc1_base = devm_ioremap_resource(&pdev->dev, res);
804 if (IS_ERR(grf_uoc1_base)){
805 ret = PTR_ERR(grf_uoc1_base);
808 control_usb->grf_uoc1_base = (pGRF_UOC1_REG)grf_uoc1_base;
810 res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
812 grf_uoc2_base = devm_ioremap_resource(&pdev->dev, res);
813 if (IS_ERR(grf_uoc2_base)){
814 ret = PTR_ERR(grf_uoc2_base);
817 control_usb->grf_uoc2_base = (pGRF_UOC2_REG)grf_uoc2_base;
819 res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
821 grf_uoc3_base = devm_ioremap_resource(&pdev->dev, res);
822 if (IS_ERR(grf_uoc3_base)){
823 ret = PTR_ERR(grf_uoc3_base);
826 control_usb->grf_uoc3_base = (pGRF_UOC3_REG)grf_uoc3_base;
828 res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
830 grf_uoc4_base = devm_ioremap_resource(&pdev->dev, res);
831 if (IS_ERR(grf_uoc4_base)){
832 ret = PTR_ERR(grf_uoc4_base);
835 control_usb->grf_uoc4_base = (pGRF_UOC4_REG)grf_uoc4_base;
842 static const struct of_device_id dwc_otg_control_usb_id_table[] = {
844 .compatible = "rockchip,rk3288-dwc-control-usb",
851 static int dwc_otg_control_usb_probe(struct platform_device *pdev)
854 struct device_node *np = pdev->dev.of_node;
855 struct clk* hclk_usb_peri;
858 control_usb = devm_kzalloc(&pdev->dev, sizeof(*control_usb),GFP_KERNEL);
860 dev_err(&pdev->dev, "unable to alloc memory for control usb\n");
865 control_usb->chip_id = RK3288_USB_CTLR;
866 control_usb->remote_wakeup = of_property_read_bool(np,
867 "rockchip,remote_wakeup");
868 control_usb->usb_irq_wakeup = of_property_read_bool(np,
869 "rockchip,usb_irq_wakeup");
871 INIT_DELAYED_WORK(&control_usb->usb_charger_det_work, usb_battery_charger_detect_work);
872 hclk_usb_peri = devm_clk_get(&pdev->dev, "hclk_usb_peri");
873 if (IS_ERR(hclk_usb_peri)) {
874 dev_err(&pdev->dev, "Failed to get hclk_usb_peri\n");
879 control_usb->hclk_usb_peri = hclk_usb_peri;
880 clk_prepare_enable(hclk_usb_peri);
881 ret = usb_grf_ioremap(pdev);
883 dev_err(&pdev->dev, "Failed to ioremap usb grf\n");
887 control_usb->host_gpios = devm_kzalloc(&pdev->dev, sizeof(struct gpio), GFP_KERNEL);
888 if(!control_usb->host_gpios){
889 dev_err(&pdev->dev, "unable to alloc memory for host_gpios\n");
894 gpio = of_get_named_gpio(np, "gpios", 0);
895 if(!gpio_is_valid(gpio)){
896 dev_err(&pdev->dev, "invalid host gpio%d\n", gpio);
900 control_usb->host_gpios->gpio = gpio;
901 err = devm_gpio_request(&pdev->dev, gpio, "host_drv_gpio");
904 "failed to request GPIO%d for host_drv\n",
909 gpio_direction_output(control_usb->host_gpios->gpio, 1);
911 control_usb->otg_gpios = devm_kzalloc(&pdev->dev, sizeof(struct gpio), GFP_KERNEL);
912 if(!control_usb->otg_gpios){
913 dev_err(&pdev->dev, "unable to alloc memory for otg_gpios\n");
918 gpio = of_get_named_gpio(np, "gpios", 1);
919 if(!gpio_is_valid(gpio)){
920 dev_err(&pdev->dev, "invalid otg gpio%d\n", gpio);
924 control_usb->otg_gpios->gpio = gpio;
925 err = devm_gpio_request(&pdev->dev, gpio, "otg_drv_gpio");
928 "failed to request GPIO%d for otg_drv\n",
933 gpio_direction_output(control_usb->otg_gpios->gpio, 0);
935 #ifdef CONFIG_USB20_OTG
936 if(usb20otg_get_status(USB_STATUS_BVABLID)){
937 rk_usb_charger_status = USB_BC_TYPE_SDP;
938 schedule_delayed_work(&control_usb->usb_charger_det_work, HZ/10);
942 ret = otg_irq_detect_init(pdev);
949 clk_disable_unprepare(hclk_usb_peri);
954 static int dwc_otg_control_usb_remove(struct platform_device *pdev)
956 clk_disable_unprepare(control_usb->hclk_usb_peri);
960 static struct platform_driver dwc_otg_control_usb_driver = {
961 .probe = dwc_otg_control_usb_probe,
962 .remove = dwc_otg_control_usb_remove,
964 .name = "rk3288-dwc-control-usb",
965 .owner = THIS_MODULE,
966 .of_match_table = of_match_ptr(dwc_otg_control_usb_id_table),
970 static int __init dwc_otg_control_usb_init(void)
972 return platform_driver_register(&dwc_otg_control_usb_driver);
975 subsys_initcall(dwc_otg_control_usb_init);
977 static void __exit dwc_otg_control_usb_exit(void)
979 platform_driver_unregister(&dwc_otg_control_usb_driver);
982 module_exit(dwc_otg_control_usb_exit);
983 MODULE_ALIAS("platform: dwc_control_usb");
984 MODULE_AUTHOR("RockChip Inc.");
985 MODULE_DESCRIPTION("RockChip Control Module USB Driver");
986 MODULE_LICENSE("GPL v2");