diff options
Diffstat (limited to 'drivers/usb/gadget/fsl_udc_core.c')
| -rw-r--r-- | drivers/usb/gadget/fsl_udc_core.c | 57 |
1 files changed, 38 insertions, 19 deletions
diff --git a/drivers/usb/gadget/fsl_udc_core.c b/drivers/usb/gadget/fsl_udc_core.c index 55abfb6bd612..bc6f9bb9994a 100644 --- a/drivers/usb/gadget/fsl_udc_core.c +++ b/drivers/usb/gadget/fsl_udc_core.c @@ -1,5 +1,5 @@ /* - * Copyright (C) 2004-2007,2011 Freescale Semiconductor, Inc. + * Copyright (C) 2004-2007,2011-2012 Freescale Semiconductor, Inc. * All rights reserved. * * Author: Li Yang <leoli@freescale.com> @@ -58,9 +58,8 @@ static const char driver_name[] = "fsl-usb2-udc"; static const char driver_desc[] = DRIVER_DESC; static struct usb_dr_device *dr_regs; -#ifndef CONFIG_ARCH_MXC + static struct usb_sys_interface *usb_sys_regs; -#endif /* it is initialized in probe() */ static struct fsl_udc *udc_controller = NULL; @@ -244,10 +243,9 @@ static int dr_controller_setup(struct fsl_udc *udc) { unsigned int tmp, portctrl, ep_num; unsigned int max_no_of_ep; -#ifndef CONFIG_ARCH_MXC unsigned int ctrl; -#endif unsigned long timeout; + #define FSL_UDC_RESET_TIMEOUT 1000 /* Config PHY interface */ @@ -255,12 +253,32 @@ static int dr_controller_setup(struct fsl_udc *udc) portctrl &= ~(PORTSCX_PHY_TYPE_SEL | PORTSCX_PORT_WIDTH); switch (udc->phy_mode) { case FSL_USB2_PHY_ULPI: + if (udc->pdata->have_sysif_regs) { + if (udc->pdata->controller_ver) { + /* controller version 1.6 or above */ + ctrl = __raw_readl(&usb_sys_regs->control); + ctrl &= ~USB_CTRL_UTMI_PHY_EN; + ctrl |= USB_CTRL_USB_EN; + __raw_writel(ctrl, &usb_sys_regs->control); + } + } portctrl |= PORTSCX_PTS_ULPI; break; case FSL_USB2_PHY_UTMI_WIDE: portctrl |= PORTSCX_PTW_16BIT; /* fall through */ case FSL_USB2_PHY_UTMI: + if (udc->pdata->have_sysif_regs) { + if (udc->pdata->controller_ver) { + /* controller version 1.6 or above */ + ctrl = __raw_readl(&usb_sys_regs->control); + ctrl |= (USB_CTRL_UTMI_PHY_EN | + USB_CTRL_USB_EN); + __raw_writel(ctrl, &usb_sys_regs->control); + mdelay(FSL_UTMI_PHY_DLY); /* Delay for UTMI + PHY CLK to become stable - 10ms*/ + } + } portctrl |= PORTSCX_PTS_UTMI; break; case FSL_USB2_PHY_SERIAL: @@ -549,7 +567,7 @@ static int fsl_ep_enable(struct usb_ep *_ep, ep = container_of(_ep, struct fsl_ep, ep); /* catch various bogus parameters */ - if (!_ep || !desc || ep->desc + if (!_ep || !desc || (desc->bDescriptorType != USB_DT_ENDPOINT)) return -EINVAL; @@ -590,7 +608,7 @@ static int fsl_ep_enable(struct usb_ep *_ep, spin_lock_irqsave(&udc->lock, flags); ep->ep.maxpacket = max; - ep->desc = desc; + ep->ep.desc = desc; ep->stopped = 0; /* Controller related setup */ @@ -614,7 +632,7 @@ static int fsl_ep_enable(struct usb_ep *_ep, retval = 0; VDBG("enabled %s (ep%d%s) maxpacket %d",ep->ep.name, - ep->desc->bEndpointAddress & 0x0f, + ep->ep.desc->bEndpointAddress & 0x0f, (desc->bEndpointAddress & USB_DIR_IN) ? "in" : "out", max); en_done: @@ -634,7 +652,7 @@ static int fsl_ep_disable(struct usb_ep *_ep) int ep_num; ep = container_of(_ep, struct fsl_ep, ep); - if (!_ep || !ep->desc) { + if (!_ep || !ep->ep.desc) { VDBG("%s not enabled", _ep ? ep->ep.name : NULL); return -EINVAL; } @@ -657,7 +675,6 @@ static int fsl_ep_disable(struct usb_ep *_ep) /* nuke all pending requests (does flush) */ nuke(ep, -ESHUTDOWN); - ep->desc = NULL; ep->ep.desc = NULL; ep->stopped = 1; spin_unlock_irqrestore(&udc->lock, flags); @@ -736,6 +753,8 @@ static void fsl_queue_td(struct fsl_ep *ep, struct fsl_req *req) lastreq = list_entry(ep->queue.prev, struct fsl_req, queue); lastreq->tail->next_td_ptr = cpu_to_hc32(req->head->td_dma & DTD_ADDR_MASK); + /* Ensure dTD's next dtd pointer to be updated */ + wmb(); /* Read prime bit, if 1 goto done */ if (fsl_readl(&dr_regs->endpointprime) & bitmask) return; @@ -874,11 +893,11 @@ fsl_ep_queue(struct usb_ep *_ep, struct usb_request *_req, gfp_t gfp_flags) VDBG("%s, bad params", __func__); return -EINVAL; } - if (unlikely(!_ep || !ep->desc)) { + if (unlikely(!_ep || !ep->ep.desc)) { VDBG("%s, bad ep", __func__); return -EINVAL; } - if (usb_endpoint_xfer_isoc(ep->desc)) { + if (usb_endpoint_xfer_isoc(ep->ep.desc)) { if (req->req.length > ep->ep.maxpacket) return -EMSGSIZE; } @@ -1017,12 +1036,12 @@ static int fsl_ep_set_halt(struct usb_ep *_ep, int value) ep = container_of(_ep, struct fsl_ep, ep); udc = ep->udc; - if (!_ep || !ep->desc) { + if (!_ep || !ep->ep.desc) { status = -EINVAL; goto out; } - if (usb_endpoint_xfer_isoc(ep->desc)) { + if (usb_endpoint_xfer_isoc(ep->ep.desc)) { status = -EOPNOTSUPP; goto out; } @@ -1061,7 +1080,7 @@ static int fsl_ep_fifo_status(struct usb_ep *_ep) struct ep_queue_head *qh; ep = container_of(_ep, struct fsl_ep, ep); - if (!_ep || (!ep->desc && ep_index(ep) != 0)) + if (!_ep || (!ep->ep.desc && ep_index(ep) != 0)) return -ENODEV; udc = (struct fsl_udc *)ep->udc; @@ -1094,7 +1113,7 @@ static void fsl_ep_fifo_flush(struct usb_ep *_ep) return; } else { ep = container_of(_ep, struct fsl_ep, ep); - if (!ep->desc) + if (!ep->ep.desc) return; } ep_num = ep_index(ep); @@ -1349,7 +1368,7 @@ static void ch9getstatus(struct fsl_udc *udc, u8 request_type, u16 value, target_ep = get_ep_by_pipe(udc, get_pipe_by_windex(index)); /* stall if endpoint doesn't exist */ - if (!target_ep->desc) + if (!target_ep->ep.desc) goto stall; tmp = dr_ep_get_stall(ep_index(target_ep), ep_is_in(target_ep)) << USB_ENDPOINT_HALT; @@ -2259,7 +2278,7 @@ static int fsl_proc_read(char *page, char **start, off_t off, int count, } /* other gadget->eplist ep */ list_for_each_entry(ep, &udc->gadget.ep_list, ep.ep_list) { - if (ep->desc) { + if (ep->ep.desc) { t = scnprintf(next, size, "\nFor %s Maxpkt is 0x%x " "index is 0x%x\n", @@ -2556,7 +2575,7 @@ static int __init fsl_udc_probe(struct platform_device *pdev) /* for ep0: the desc defined here; * for other eps, gadget layer called ep_enable with defined desc */ - udc_controller->eps[0].desc = &fsl_ep0_desc; + udc_controller->eps[0].ep.desc = &fsl_ep0_desc; udc_controller->eps[0].ep.maxpacket = USB_MAX_CTRL_PAYLOAD; /* setup the udc->eps[] for non-control endpoints and link |