2 * Allwinner sun4i MUSB Glue Layer
7 * Allwinner Technology Co., Ltd. <www.allwinnertech.com>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
20 #include <linux/clk.h>
21 #include <linux/err.h>
22 #include <linux/extcon.h>
24 #include <linux/kernel.h>
25 #include <linux/module.h>
27 #include <linux/phy/phy-sun4i-usb.h>
28 #include <linux/platform_device.h>
29 #include <linux/reset.h>
30 #include <linux/soc/sunxi/sunxi_sram.h>
31 #include <linux/usb/musb.h>
32 #include <linux/usb/of.h>
33 #include <linux/usb/usb_phy_generic.h>
34 #include <linux/workqueue.h>
35 #include "musb_core.h"
38 * Register offsets, note sunxi musb has a different layout then most
39 * musb implementations, we translate the layout in musb_readb & friends.
41 #define SUNXI_MUSB_POWER 0x0040
42 #define SUNXI_MUSB_DEVCTL 0x0041
43 #define SUNXI_MUSB_INDEX 0x0042
44 #define SUNXI_MUSB_VEND0 0x0043
45 #define SUNXI_MUSB_INTRTX 0x0044
46 #define SUNXI_MUSB_INTRRX 0x0046
47 #define SUNXI_MUSB_INTRTXE 0x0048
48 #define SUNXI_MUSB_INTRRXE 0x004a
49 #define SUNXI_MUSB_INTRUSB 0x004c
50 #define SUNXI_MUSB_INTRUSBE 0x0050
51 #define SUNXI_MUSB_FRAME 0x0054
52 #define SUNXI_MUSB_TXFIFOSZ 0x0090
53 #define SUNXI_MUSB_TXFIFOADD 0x0092
54 #define SUNXI_MUSB_RXFIFOSZ 0x0094
55 #define SUNXI_MUSB_RXFIFOADD 0x0096
56 #define SUNXI_MUSB_FADDR 0x0098
57 #define SUNXI_MUSB_TXFUNCADDR 0x0098
58 #define SUNXI_MUSB_TXHUBADDR 0x009a
59 #define SUNXI_MUSB_TXHUBPORT 0x009b
60 #define SUNXI_MUSB_RXFUNCADDR 0x009c
61 #define SUNXI_MUSB_RXHUBADDR 0x009e
62 #define SUNXI_MUSB_RXHUBPORT 0x009f
63 #define SUNXI_MUSB_CONFIGDATA 0x00c0
66 #define SUNXI_MUSB_VEND0_PIO_MODE 0
69 #define SUNXI_MUSB_FL_ENABLED 0
70 #define SUNXI_MUSB_FL_HOSTMODE 1
71 #define SUNXI_MUSB_FL_HOSTMODE_PEND 2
72 #define SUNXI_MUSB_FL_VBUS_ON 3
73 #define SUNXI_MUSB_FL_PHY_ON 4
74 #define SUNXI_MUSB_FL_HAS_SRAM 5
75 #define SUNXI_MUSB_FL_HAS_RESET 6
76 #define SUNXI_MUSB_FL_NO_CONFIGDATA 7
77 #define SUNXI_MUSB_FL_PHY_MODE_PEND 8
79 /* Our read/write methods need access and do not get passed in a musb ref :| */
80 static struct musb *sunxi_musb;
85 struct platform_device *musb_pdev;
87 struct reset_control *rst;
89 struct platform_device *usb_phy;
90 struct usb_phy *xceiv;
91 enum phy_mode phy_mode;
93 struct work_struct work;
94 struct extcon_dev *extcon;
95 struct notifier_block host_nb;
98 /* phy_power_on / off may sleep, so we use a workqueue */
99 static void sunxi_musb_work(struct work_struct *work)
101 struct sunxi_glue *glue = container_of(work, struct sunxi_glue, work);
102 bool vbus_on, phy_on;
104 if (!test_bit(SUNXI_MUSB_FL_ENABLED, &glue->flags))
107 if (test_and_clear_bit(SUNXI_MUSB_FL_HOSTMODE_PEND, &glue->flags)) {
108 struct musb *musb = glue->musb;
112 spin_lock_irqsave(&musb->lock, flags);
114 devctl = readb(musb->mregs + SUNXI_MUSB_DEVCTL);
115 if (test_bit(SUNXI_MUSB_FL_HOSTMODE, &glue->flags)) {
116 set_bit(SUNXI_MUSB_FL_VBUS_ON, &glue->flags);
117 musb->xceiv->otg->default_a = 1;
118 musb->xceiv->otg->state = OTG_STATE_A_WAIT_VRISE;
120 devctl |= MUSB_DEVCTL_SESSION;
122 clear_bit(SUNXI_MUSB_FL_VBUS_ON, &glue->flags);
123 musb->xceiv->otg->default_a = 0;
124 musb->xceiv->otg->state = OTG_STATE_B_IDLE;
126 devctl &= ~MUSB_DEVCTL_SESSION;
128 writeb(devctl, musb->mregs + SUNXI_MUSB_DEVCTL);
130 spin_unlock_irqrestore(&musb->lock, flags);
133 vbus_on = test_bit(SUNXI_MUSB_FL_VBUS_ON, &glue->flags);
134 phy_on = test_bit(SUNXI_MUSB_FL_PHY_ON, &glue->flags);
136 if (phy_on != vbus_on) {
138 phy_power_on(glue->phy);
139 set_bit(SUNXI_MUSB_FL_PHY_ON, &glue->flags);
141 phy_power_off(glue->phy);
142 clear_bit(SUNXI_MUSB_FL_PHY_ON, &glue->flags);
146 if (test_and_clear_bit(SUNXI_MUSB_FL_PHY_MODE_PEND, &glue->flags))
147 phy_set_mode(glue->phy, glue->phy_mode);
150 static void sunxi_musb_set_vbus(struct musb *musb, int is_on)
152 struct sunxi_glue *glue = dev_get_drvdata(musb->controller->parent);
155 set_bit(SUNXI_MUSB_FL_VBUS_ON, &glue->flags);
156 musb->xceiv->otg->state = OTG_STATE_A_WAIT_VRISE;
158 clear_bit(SUNXI_MUSB_FL_VBUS_ON, &glue->flags);
161 schedule_work(&glue->work);
164 static void sunxi_musb_pre_root_reset_end(struct musb *musb)
166 struct sunxi_glue *glue = dev_get_drvdata(musb->controller->parent);
168 sun4i_usb_phy_set_squelch_detect(glue->phy, false);
171 static void sunxi_musb_post_root_reset_end(struct musb *musb)
173 struct sunxi_glue *glue = dev_get_drvdata(musb->controller->parent);
175 sun4i_usb_phy_set_squelch_detect(glue->phy, true);
178 static irqreturn_t sunxi_musb_interrupt(int irq, void *__hci)
180 struct musb *musb = __hci;
183 spin_lock_irqsave(&musb->lock, flags);
185 musb->int_usb = readb(musb->mregs + SUNXI_MUSB_INTRUSB);
187 writeb(musb->int_usb, musb->mregs + SUNXI_MUSB_INTRUSB);
189 if ((musb->int_usb & MUSB_INTR_RESET) && !is_host_active(musb)) {
190 /* ep0 FADDR must be 0 when (re)entering peripheral mode */
191 musb_ep_select(musb->mregs, 0);
192 musb_writeb(musb->mregs, MUSB_FADDR, 0);
195 musb->int_tx = readw(musb->mregs + SUNXI_MUSB_INTRTX);
197 writew(musb->int_tx, musb->mregs + SUNXI_MUSB_INTRTX);
199 musb->int_rx = readw(musb->mregs + SUNXI_MUSB_INTRRX);
201 writew(musb->int_rx, musb->mregs + SUNXI_MUSB_INTRRX);
203 musb_interrupt(musb);
205 spin_unlock_irqrestore(&musb->lock, flags);
210 static int sunxi_musb_host_notifier(struct notifier_block *nb,
211 unsigned long event, void *ptr)
213 struct sunxi_glue *glue = container_of(nb, struct sunxi_glue, host_nb);
216 set_bit(SUNXI_MUSB_FL_HOSTMODE, &glue->flags);
218 clear_bit(SUNXI_MUSB_FL_HOSTMODE, &glue->flags);
220 set_bit(SUNXI_MUSB_FL_HOSTMODE_PEND, &glue->flags);
221 schedule_work(&glue->work);
226 static int sunxi_musb_init(struct musb *musb)
228 struct sunxi_glue *glue = dev_get_drvdata(musb->controller->parent);
232 musb->phy = glue->phy;
233 musb->xceiv = glue->xceiv;
235 if (test_bit(SUNXI_MUSB_FL_HAS_SRAM, &glue->flags)) {
236 ret = sunxi_sram_claim(musb->controller->parent);
241 ret = clk_prepare_enable(glue->clk);
243 goto error_sram_release;
245 if (test_bit(SUNXI_MUSB_FL_HAS_RESET, &glue->flags)) {
246 ret = reset_control_deassert(glue->rst);
248 goto error_clk_disable;
251 writeb(SUNXI_MUSB_VEND0_PIO_MODE, musb->mregs + SUNXI_MUSB_VEND0);
253 /* Register notifier before calling phy_init() */
254 ret = devm_extcon_register_notifier(glue->dev, glue->extcon,
255 EXTCON_USB_HOST, &glue->host_nb);
257 goto error_reset_assert;
259 ret = phy_init(glue->phy);
261 goto error_reset_assert;
263 musb->isr = sunxi_musb_interrupt;
265 /* Stop the musb-core from doing runtime pm (not supported on sunxi) */
266 pm_runtime_get(musb->controller);
271 if (test_bit(SUNXI_MUSB_FL_HAS_RESET, &glue->flags))
272 reset_control_assert(glue->rst);
274 clk_disable_unprepare(glue->clk);
276 if (test_bit(SUNXI_MUSB_FL_HAS_SRAM, &glue->flags))
277 sunxi_sram_release(musb->controller->parent);
281 static int sunxi_musb_exit(struct musb *musb)
283 struct sunxi_glue *glue = dev_get_drvdata(musb->controller->parent);
285 pm_runtime_put(musb->controller);
287 cancel_work_sync(&glue->work);
288 if (test_bit(SUNXI_MUSB_FL_PHY_ON, &glue->flags))
289 phy_power_off(glue->phy);
293 if (test_bit(SUNXI_MUSB_FL_HAS_RESET, &glue->flags))
294 reset_control_assert(glue->rst);
296 clk_disable_unprepare(glue->clk);
297 if (test_bit(SUNXI_MUSB_FL_HAS_SRAM, &glue->flags))
298 sunxi_sram_release(musb->controller->parent);
303 static void sunxi_musb_enable(struct musb *musb)
305 struct sunxi_glue *glue = dev_get_drvdata(musb->controller->parent);
309 /* musb_core does not call us in a balanced manner */
310 if (test_and_set_bit(SUNXI_MUSB_FL_ENABLED, &glue->flags))
313 schedule_work(&glue->work);
316 static void sunxi_musb_disable(struct musb *musb)
318 struct sunxi_glue *glue = dev_get_drvdata(musb->controller->parent);
320 clear_bit(SUNXI_MUSB_FL_ENABLED, &glue->flags);
323 static struct dma_controller *
324 sunxi_musb_dma_controller_create(struct musb *musb, void __iomem *base)
329 static void sunxi_musb_dma_controller_destroy(struct dma_controller *c)
333 static int sunxi_musb_set_mode(struct musb *musb, u8 mode)
335 struct sunxi_glue *glue = dev_get_drvdata(musb->controller->parent);
336 enum phy_mode new_mode;
340 new_mode = PHY_MODE_USB_HOST;
342 case MUSB_PERIPHERAL:
343 new_mode = PHY_MODE_USB_DEVICE;
346 new_mode = PHY_MODE_USB_OTG;
349 dev_err(musb->controller->parent,
350 "Error requested mode not supported by this kernel\n");
354 if (glue->phy_mode == new_mode)
357 if (musb->port_mode != MUSB_PORT_MODE_DUAL_ROLE) {
358 dev_err(musb->controller->parent,
359 "Error changing modes is only supported in dual role mode\n");
363 if (musb->port1_status & USB_PORT_STAT_ENABLE)
364 musb_root_disconnect(musb);
367 * phy_set_mode may sleep, and we're called with a spinlock held,
368 * so let sunxi_musb_work deal with it.
370 glue->phy_mode = new_mode;
371 set_bit(SUNXI_MUSB_FL_PHY_MODE_PEND, &glue->flags);
372 schedule_work(&glue->work);
377 static int sunxi_musb_recover(struct musb *musb)
379 struct sunxi_glue *glue = dev_get_drvdata(musb->controller->parent);
382 * Schedule a phy_set_mode with the current glue->phy_mode value,
383 * this will force end the current session.
385 set_bit(SUNXI_MUSB_FL_PHY_MODE_PEND, &glue->flags);
386 schedule_work(&glue->work);
392 * sunxi musb register layout
393 * 0x00 - 0x17 fifo regs, 1 long per fifo
394 * 0x40 - 0x57 generic control regs (power - frame)
395 * 0x80 - 0x8f ep control regs (addressed through hw_ep->regs, indexed)
396 * 0x90 - 0x97 fifo control regs (indexed)
397 * 0x98 - 0x9f multipoint / busctl regs (indexed)
398 * 0xc0 configdata reg
401 static u32 sunxi_musb_fifo_offset(u8 epnum)
406 static u32 sunxi_musb_ep_offset(u8 epnum, u16 offset)
408 WARN_ONCE(offset != 0,
409 "sunxi_musb_ep_offset called with non 0 offset\n");
411 return 0x80; /* indexed, so ignore epnum */
414 static u32 sunxi_musb_busctl_offset(u8 epnum, u16 offset)
416 return SUNXI_MUSB_TXFUNCADDR + offset;
419 static u8 sunxi_musb_readb(const void __iomem *addr, unsigned offset)
421 struct sunxi_glue *glue;
423 if (addr == sunxi_musb->mregs) {
424 /* generic control or fifo control reg access */
427 return readb(addr + SUNXI_MUSB_FADDR);
429 return readb(addr + SUNXI_MUSB_POWER);
431 return readb(addr + SUNXI_MUSB_INTRUSB);
433 return readb(addr + SUNXI_MUSB_INTRUSBE);
435 return readb(addr + SUNXI_MUSB_INDEX);
437 return 0; /* No testmode on sunxi */
439 return readb(addr + SUNXI_MUSB_DEVCTL);
441 return readb(addr + SUNXI_MUSB_TXFIFOSZ);
443 return readb(addr + SUNXI_MUSB_RXFIFOSZ);
444 case MUSB_CONFIGDATA + 0x10: /* See musb_read_configdata() */
445 glue = dev_get_drvdata(sunxi_musb->controller->parent);
446 /* A33 saves a reg, and we get to hardcode this */
447 if (test_bit(SUNXI_MUSB_FL_NO_CONFIGDATA,
451 return readb(addr + SUNXI_MUSB_CONFIGDATA);
452 /* Offset for these is fixed by sunxi_musb_busctl_offset() */
453 case SUNXI_MUSB_TXFUNCADDR:
454 case SUNXI_MUSB_TXHUBADDR:
455 case SUNXI_MUSB_TXHUBPORT:
456 case SUNXI_MUSB_RXFUNCADDR:
457 case SUNXI_MUSB_RXHUBADDR:
458 case SUNXI_MUSB_RXHUBPORT:
459 /* multipoint / busctl reg access */
460 return readb(addr + offset);
462 dev_err(sunxi_musb->controller->parent,
463 "Error unknown readb offset %u\n", offset);
466 } else if (addr == (sunxi_musb->mregs + 0x80)) {
467 /* ep control reg access */
468 /* sunxi has a 2 byte hole before the txtype register */
469 if (offset >= MUSB_TXTYPE)
471 return readb(addr + offset);
474 dev_err(sunxi_musb->controller->parent,
475 "Error unknown readb at 0x%x bytes offset\n",
476 (int)(addr - sunxi_musb->mregs));
480 static void sunxi_musb_writeb(void __iomem *addr, unsigned offset, u8 data)
482 if (addr == sunxi_musb->mregs) {
483 /* generic control or fifo control reg access */
486 return writeb(data, addr + SUNXI_MUSB_FADDR);
488 return writeb(data, addr + SUNXI_MUSB_POWER);
490 return writeb(data, addr + SUNXI_MUSB_INTRUSB);
492 return writeb(data, addr + SUNXI_MUSB_INTRUSBE);
494 return writeb(data, addr + SUNXI_MUSB_INDEX);
497 dev_warn(sunxi_musb->controller->parent,
498 "sunxi-musb does not have testmode\n");
501 return writeb(data, addr + SUNXI_MUSB_DEVCTL);
503 return writeb(data, addr + SUNXI_MUSB_TXFIFOSZ);
505 return writeb(data, addr + SUNXI_MUSB_RXFIFOSZ);
506 /* Offset for these is fixed by sunxi_musb_busctl_offset() */
507 case SUNXI_MUSB_TXFUNCADDR:
508 case SUNXI_MUSB_TXHUBADDR:
509 case SUNXI_MUSB_TXHUBPORT:
510 case SUNXI_MUSB_RXFUNCADDR:
511 case SUNXI_MUSB_RXHUBADDR:
512 case SUNXI_MUSB_RXHUBPORT:
513 /* multipoint / busctl reg access */
514 return writeb(data, addr + offset);
516 dev_err(sunxi_musb->controller->parent,
517 "Error unknown writeb offset %u\n", offset);
520 } else if (addr == (sunxi_musb->mregs + 0x80)) {
521 /* ep control reg access */
522 if (offset >= MUSB_TXTYPE)
524 return writeb(data, addr + offset);
527 dev_err(sunxi_musb->controller->parent,
528 "Error unknown writeb at 0x%x bytes offset\n",
529 (int)(addr - sunxi_musb->mregs));
532 static u16 sunxi_musb_readw(const void __iomem *addr, unsigned offset)
534 if (addr == sunxi_musb->mregs) {
535 /* generic control or fifo control reg access */
538 return readw(addr + SUNXI_MUSB_INTRTX);
540 return readw(addr + SUNXI_MUSB_INTRRX);
542 return readw(addr + SUNXI_MUSB_INTRTXE);
544 return readw(addr + SUNXI_MUSB_INTRRXE);
546 return readw(addr + SUNXI_MUSB_FRAME);
548 return readw(addr + SUNXI_MUSB_TXFIFOADD);
550 return readw(addr + SUNXI_MUSB_RXFIFOADD);
552 return 0; /* sunxi musb version is not known */
554 dev_err(sunxi_musb->controller->parent,
555 "Error unknown readw offset %u\n", offset);
558 } else if (addr == (sunxi_musb->mregs + 0x80)) {
559 /* ep control reg access */
560 return readw(addr + offset);
563 dev_err(sunxi_musb->controller->parent,
564 "Error unknown readw at 0x%x bytes offset\n",
565 (int)(addr - sunxi_musb->mregs));
569 static void sunxi_musb_writew(void __iomem *addr, unsigned offset, u16 data)
571 if (addr == sunxi_musb->mregs) {
572 /* generic control or fifo control reg access */
575 return writew(data, addr + SUNXI_MUSB_INTRTX);
577 return writew(data, addr + SUNXI_MUSB_INTRRX);
579 return writew(data, addr + SUNXI_MUSB_INTRTXE);
581 return writew(data, addr + SUNXI_MUSB_INTRRXE);
583 return writew(data, addr + SUNXI_MUSB_FRAME);
585 return writew(data, addr + SUNXI_MUSB_TXFIFOADD);
587 return writew(data, addr + SUNXI_MUSB_RXFIFOADD);
589 dev_err(sunxi_musb->controller->parent,
590 "Error unknown writew offset %u\n", offset);
593 } else if (addr == (sunxi_musb->mregs + 0x80)) {
594 /* ep control reg access */
595 return writew(data, addr + offset);
598 dev_err(sunxi_musb->controller->parent,
599 "Error unknown writew at 0x%x bytes offset\n",
600 (int)(addr - sunxi_musb->mregs));
603 static const struct musb_platform_ops sunxi_musb_ops = {
604 .quirks = MUSB_INDEXED_EP,
605 .init = sunxi_musb_init,
606 .exit = sunxi_musb_exit,
607 .enable = sunxi_musb_enable,
608 .disable = sunxi_musb_disable,
609 .fifo_offset = sunxi_musb_fifo_offset,
610 .ep_offset = sunxi_musb_ep_offset,
611 .busctl_offset = sunxi_musb_busctl_offset,
612 .readb = sunxi_musb_readb,
613 .writeb = sunxi_musb_writeb,
614 .readw = sunxi_musb_readw,
615 .writew = sunxi_musb_writew,
616 .dma_init = sunxi_musb_dma_controller_create,
617 .dma_exit = sunxi_musb_dma_controller_destroy,
618 .set_mode = sunxi_musb_set_mode,
619 .recover = sunxi_musb_recover,
620 .set_vbus = sunxi_musb_set_vbus,
621 .pre_root_reset_end = sunxi_musb_pre_root_reset_end,
622 .post_root_reset_end = sunxi_musb_post_root_reset_end,
625 /* Allwinner OTG supports up to 5 endpoints */
626 #define SUNXI_MUSB_MAX_EP_NUM 6
627 #define SUNXI_MUSB_RAM_BITS 11
629 static struct musb_fifo_cfg sunxi_musb_mode_cfg[] = {
630 MUSB_EP_FIFO_SINGLE(1, FIFO_TX, 512),
631 MUSB_EP_FIFO_SINGLE(1, FIFO_RX, 512),
632 MUSB_EP_FIFO_SINGLE(2, FIFO_TX, 512),
633 MUSB_EP_FIFO_SINGLE(2, FIFO_RX, 512),
634 MUSB_EP_FIFO_SINGLE(3, FIFO_TX, 512),
635 MUSB_EP_FIFO_SINGLE(3, FIFO_RX, 512),
636 MUSB_EP_FIFO_SINGLE(4, FIFO_TX, 512),
637 MUSB_EP_FIFO_SINGLE(4, FIFO_RX, 512),
638 MUSB_EP_FIFO_SINGLE(5, FIFO_TX, 512),
639 MUSB_EP_FIFO_SINGLE(5, FIFO_RX, 512),
642 /* H3/V3s OTG supports only 4 endpoints */
643 #define SUNXI_MUSB_MAX_EP_NUM_H3 5
645 static struct musb_fifo_cfg sunxi_musb_mode_cfg_h3[] = {
646 MUSB_EP_FIFO_SINGLE(1, FIFO_TX, 512),
647 MUSB_EP_FIFO_SINGLE(1, FIFO_RX, 512),
648 MUSB_EP_FIFO_SINGLE(2, FIFO_TX, 512),
649 MUSB_EP_FIFO_SINGLE(2, FIFO_RX, 512),
650 MUSB_EP_FIFO_SINGLE(3, FIFO_TX, 512),
651 MUSB_EP_FIFO_SINGLE(3, FIFO_RX, 512),
652 MUSB_EP_FIFO_SINGLE(4, FIFO_TX, 512),
653 MUSB_EP_FIFO_SINGLE(4, FIFO_RX, 512),
656 static const struct musb_hdrc_config sunxi_musb_hdrc_config = {
657 .fifo_cfg = sunxi_musb_mode_cfg,
658 .fifo_cfg_size = ARRAY_SIZE(sunxi_musb_mode_cfg),
662 .num_eps = SUNXI_MUSB_MAX_EP_NUM,
663 .ram_bits = SUNXI_MUSB_RAM_BITS,
667 static struct musb_hdrc_config sunxi_musb_hdrc_config_h3 = {
668 .fifo_cfg = sunxi_musb_mode_cfg_h3,
669 .fifo_cfg_size = ARRAY_SIZE(sunxi_musb_mode_cfg_h3),
673 .num_eps = SUNXI_MUSB_MAX_EP_NUM_H3,
674 .ram_bits = SUNXI_MUSB_RAM_BITS,
679 static int sunxi_musb_probe(struct platform_device *pdev)
681 struct musb_hdrc_platform_data pdata;
682 struct platform_device_info pinfo;
683 struct sunxi_glue *glue;
684 struct device_node *np = pdev->dev.of_node;
688 dev_err(&pdev->dev, "Error no device tree node found\n");
692 glue = devm_kzalloc(&pdev->dev, sizeof(*glue), GFP_KERNEL);
696 memset(&pdata, 0, sizeof(pdata));
697 switch (usb_get_dr_mode(&pdev->dev)) {
698 #if defined CONFIG_USB_MUSB_DUAL_ROLE || defined CONFIG_USB_MUSB_HOST
699 case USB_DR_MODE_HOST:
700 pdata.mode = MUSB_PORT_MODE_HOST;
701 glue->phy_mode = PHY_MODE_USB_HOST;
704 #if defined CONFIG_USB_MUSB_DUAL_ROLE || defined CONFIG_USB_MUSB_GADGET
705 case USB_DR_MODE_PERIPHERAL:
706 pdata.mode = MUSB_PORT_MODE_GADGET;
707 glue->phy_mode = PHY_MODE_USB_DEVICE;
710 #ifdef CONFIG_USB_MUSB_DUAL_ROLE
711 case USB_DR_MODE_OTG:
712 pdata.mode = MUSB_PORT_MODE_DUAL_ROLE;
713 glue->phy_mode = PHY_MODE_USB_OTG;
717 dev_err(&pdev->dev, "Invalid or missing 'dr_mode' property\n");
720 pdata.platform_ops = &sunxi_musb_ops;
721 if (!of_device_is_compatible(np, "allwinner,sun8i-h3-musb"))
722 pdata.config = &sunxi_musb_hdrc_config;
724 pdata.config = &sunxi_musb_hdrc_config_h3;
726 glue->dev = &pdev->dev;
727 INIT_WORK(&glue->work, sunxi_musb_work);
728 glue->host_nb.notifier_call = sunxi_musb_host_notifier;
730 if (of_device_is_compatible(np, "allwinner,sun4i-a10-musb"))
731 set_bit(SUNXI_MUSB_FL_HAS_SRAM, &glue->flags);
733 if (of_device_is_compatible(np, "allwinner,sun6i-a31-musb"))
734 set_bit(SUNXI_MUSB_FL_HAS_RESET, &glue->flags);
736 if (of_device_is_compatible(np, "allwinner,sun8i-a33-musb") ||
737 of_device_is_compatible(np, "allwinner,sun8i-h3-musb")) {
738 set_bit(SUNXI_MUSB_FL_HAS_RESET, &glue->flags);
739 set_bit(SUNXI_MUSB_FL_NO_CONFIGDATA, &glue->flags);
742 glue->clk = devm_clk_get(&pdev->dev, NULL);
743 if (IS_ERR(glue->clk)) {
744 dev_err(&pdev->dev, "Error getting clock: %ld\n",
746 return PTR_ERR(glue->clk);
749 if (test_bit(SUNXI_MUSB_FL_HAS_RESET, &glue->flags)) {
750 glue->rst = devm_reset_control_get(&pdev->dev, NULL);
751 if (IS_ERR(glue->rst)) {
752 if (PTR_ERR(glue->rst) == -EPROBE_DEFER)
753 return -EPROBE_DEFER;
754 dev_err(&pdev->dev, "Error getting reset %ld\n",
756 return PTR_ERR(glue->rst);
760 glue->extcon = extcon_get_edev_by_phandle(&pdev->dev, 0);
761 if (IS_ERR(glue->extcon)) {
762 if (PTR_ERR(glue->extcon) == -EPROBE_DEFER)
763 return -EPROBE_DEFER;
764 dev_err(&pdev->dev, "Invalid or missing extcon\n");
765 return PTR_ERR(glue->extcon);
768 glue->phy = devm_phy_get(&pdev->dev, "usb");
769 if (IS_ERR(glue->phy)) {
770 if (PTR_ERR(glue->phy) == -EPROBE_DEFER)
771 return -EPROBE_DEFER;
772 dev_err(&pdev->dev, "Error getting phy %ld\n",
774 return PTR_ERR(glue->phy);
777 glue->usb_phy = usb_phy_generic_register();
778 if (IS_ERR(glue->usb_phy)) {
779 dev_err(&pdev->dev, "Error registering usb-phy %ld\n",
780 PTR_ERR(glue->usb_phy));
781 return PTR_ERR(glue->usb_phy);
784 glue->xceiv = devm_usb_get_phy(&pdev->dev, USB_PHY_TYPE_USB2);
785 if (IS_ERR(glue->xceiv)) {
786 ret = PTR_ERR(glue->xceiv);
787 dev_err(&pdev->dev, "Error getting usb-phy %d\n", ret);
788 goto err_unregister_usb_phy;
791 platform_set_drvdata(pdev, glue);
793 memset(&pinfo, 0, sizeof(pinfo));
794 pinfo.name = "musb-hdrc";
795 pinfo.id = PLATFORM_DEVID_AUTO;
796 pinfo.parent = &pdev->dev;
797 pinfo.res = pdev->resource;
798 pinfo.num_res = pdev->num_resources;
800 pinfo.size_data = sizeof(pdata);
802 glue->musb_pdev = platform_device_register_full(&pinfo);
803 if (IS_ERR(glue->musb_pdev)) {
804 ret = PTR_ERR(glue->musb_pdev);
805 dev_err(&pdev->dev, "Error registering musb dev: %d\n", ret);
806 goto err_unregister_usb_phy;
811 err_unregister_usb_phy:
812 usb_phy_generic_unregister(glue->usb_phy);
816 static int sunxi_musb_remove(struct platform_device *pdev)
818 struct sunxi_glue *glue = platform_get_drvdata(pdev);
819 struct platform_device *usb_phy = glue->usb_phy;
821 platform_device_unregister(glue->musb_pdev);
822 usb_phy_generic_unregister(usb_phy);
827 static const struct of_device_id sunxi_musb_match[] = {
828 { .compatible = "allwinner,sun4i-a10-musb", },
829 { .compatible = "allwinner,sun6i-a31-musb", },
830 { .compatible = "allwinner,sun8i-a33-musb", },
831 { .compatible = "allwinner,sun8i-h3-musb", },
834 MODULE_DEVICE_TABLE(of, sunxi_musb_match);
836 static struct platform_driver sunxi_musb_driver = {
837 .probe = sunxi_musb_probe,
838 .remove = sunxi_musb_remove,
840 .name = "musb-sunxi",
841 .of_match_table = sunxi_musb_match,
844 module_platform_driver(sunxi_musb_driver);
846 MODULE_DESCRIPTION("Allwinner sunxi MUSB Glue Layer");
848 MODULE_LICENSE("GPL v2");