8  *  Copyright 2007-2012 (C) Allwinner Technology Co., Ltd.
12  *  Copyright (c) 2008-2009 MontaVista Software, Inc. <source@mvista.com>
13  *  Copyright (C) 2005-2006 by Texas Instruments
17  * SPDX-License-Identifier:	GPL-2.0
25 #include <asm-generic/gpio.h>
28 #include <linux/usb/musb.h>
29 #include "linux-compat.h"
184  * MUSB Glue code
189 	struct musb		*musb = __hci;  in sunxi_musb_interrupt()  local
193 	musb->int_usb = musb_readb(musb->mregs, MUSB_INTRUSB);  in sunxi_musb_interrupt()
194 	last_int_usb = musb->int_usb;  in sunxi_musb_interrupt()
195 	if (musb->int_usb)  in sunxi_musb_interrupt()
196 		musb_writeb(musb->mregs, MUSB_INTRUSB, musb->int_usb);  in sunxi_musb_interrupt()
197 	musb->int_tx = musb_readw(musb->mregs, MUSB_INTRTX);  in sunxi_musb_interrupt()
198 	if (musb->int_tx)  in sunxi_musb_interrupt()
199 		musb_writew(musb->mregs, MUSB_INTRTX, musb->int_tx);  in sunxi_musb_interrupt()
200 	musb->int_rx = musb_readw(musb->mregs, MUSB_INTRRX);  in sunxi_musb_interrupt()
201 	if (musb->int_rx)  in sunxi_musb_interrupt()
202 		musb_writew(musb->mregs, MUSB_INTRRX, musb->int_rx);  in sunxi_musb_interrupt()
204 	if (musb->int_usb || musb->int_tx || musb->int_rx)  in sunxi_musb_interrupt()
205 		retval |= musb_interrupt(musb);  in sunxi_musb_interrupt()
213 static int sunxi_musb_enable(struct musb *musb)  in sunxi_musb_enable()  argument
219 	musb_ep_select(musb->mregs, 0);  in sunxi_musb_enable()
220 	musb_writeb(musb->mregs, MUSB_FADDR, 0);  in sunxi_musb_enable()
226 	musb_writeb(musb->mregs, USBC_REG_o_VEND0, 0);  in sunxi_musb_enable()
228 	if (is_host_enabled(musb)) {  in sunxi_musb_enable()
232 			return -ENODEV;  in sunxi_musb_enable()
237 			return -ENODEV;  in sunxi_musb_enable()
242 	USBC_ForceVbusValidToHigh(musb->mregs);  in sunxi_musb_enable()
248 static void sunxi_musb_disable(struct musb *musb)  in sunxi_musb_disable()  argument
255 	if (is_host_enabled(musb))  in sunxi_musb_disable()
258 	USBC_ForceVbusValidToLow(musb->mregs);  in sunxi_musb_disable()
264 static int sunxi_musb_init(struct musb *musb)  in sunxi_musb_init()  argument
266 	struct sunxi_glue *glue = to_sunxi_glue(musb->controller);  in sunxi_musb_init()
270 	musb->isr = sunxi_musb_interrupt;  in sunxi_musb_init()
272 	setbits_le32(&glue->ccm->ahb_gate0, 1 << AHB_GATE_OFFSET_USB0);  in sunxi_musb_init()
274 	setbits_le32(&glue->ccm->ahb_reset0_cfg, 1 << AHB_GATE_OFFSET_USB0);  in sunxi_musb_init()
279 	USBC_EnableDpDmPullUp(musb->mregs);  in sunxi_musb_init()
280 	USBC_EnableIdPullUp(musb->mregs);  in sunxi_musb_init()
282 	if (is_host_enabled(musb)) {  in sunxi_musb_init()
284 		USBC_ForceIdToLow(musb->mregs);  in sunxi_musb_init()
287 		USBC_ForceIdToHigh(musb->mregs);  in sunxi_musb_init()
289 	USBC_ForceVbusValidToHigh(musb->mregs);  in sunxi_musb_init()
321 	struct musb_host_data *host = &glue->mdata;  in musb_usb_probe()
327 		return -EINVAL;  in musb_usb_probe()
329 	glue->ccm = (struct sunxi_ccm_reg *)SUNXI_CCM_BASE;  in musb_usb_probe()
330 	if (IS_ERR(glue->ccm))  in musb_usb_probe()
331 		return PTR_ERR(glue->ccm);  in musb_usb_probe()
333 	priv->desc_before_addr = true;  in musb_usb_probe()
336 	host->host = musb_init_controller(&musb_plat, &glue->dev, base);  in musb_usb_probe()
337 	if (!host->host)  in musb_usb_probe()
338 		return -EIO;  in musb_usb_probe()
342 		printf("Allwinner mUSB OTG (Host)\n");  in musb_usb_probe()
344 	ret = musb_register(&musb_plat, &glue->dev, base);  in musb_usb_probe()
346 		printf("Allwinner mUSB OTG (Peripheral)\n");  in musb_usb_probe()
355 	struct musb_host_data *host = &glue->mdata;  in musb_usb_remove()
357 	musb_stop(host->host);  in musb_usb_remove()
361 	clrbits_le32(&glue->ccm->ahb_reset0_cfg, 1 << AHB_GATE_OFFSET_USB0);  in musb_usb_remove()
363 	clrbits_le32(&glue->ccm->ahb_gate0, 1 << AHB_GATE_OFFSET_USB0);  in musb_usb_remove()
365 	free(host->host);  in musb_usb_remove()
366 	host->host = NULL;  in musb_usb_remove()
372 	{ .compatible = "allwinner,sun4i-a10-musb" },
373 	{ .compatible = "allwinner,sun6i-a31-musb" },
374 	{ .compatible = "allwinner,sun8i-a33-musb" },
375 	{ .compatible = "allwinner,sun8i-h3-musb" },
380 	.name		= "sunxi-musb",