usb/host/ehci-fsl.c

21 #include <linux/usb/hcd.h>
50 	struct usb_hcd *hcd;
83 	hcd = __usb_create_hcd(&fsl_ehci_hc_driver, pdev->dev.parent,
85 	if (!hcd) {
90 	hcd->regs = devm_platform_get_and_ioremap_resource(pdev, 0, &res);
91 	if (IS_ERR(hcd->regs)) {
92 		retval = PTR_ERR(hcd->regs);
96 	hcd->rsrc_start = res->start;
97 	hcd->rsrc_len = resource_size(res);
99 	pdata->regs = hcd->regs;
102 		hcd->power_budget = pdata->power_budget;
114 		tmp = ioread32be(hcd->regs + FSL_SOC_USB_CTRL);
117 		iowrite32be(tmp, hcd->regs + FSL_SOC_USB_CTRL);
123 		iowrite32be(USB_CTRL_USB_EN, hcd->regs + FSL_SOC_USB_CTRL);
130 		tmp = ioread32be(hcd->regs + FSL_SOC_USB_CTRL);
133 		iowrite32be(tmp, hcd->regs + FSL_SOC_USB_CTRL);
135 		writel(PORT_PTS_UTMI, hcd->regs + FSL_SOC_USB_PORTSC1);
140 	retval = usb_add_hcd(hcd, irq, IRQF_SHARED);
143 	device_wakeup_enable(hcd->self.controller);
147 		struct ehci_hcd *ehci = hcd_to_ehci(hcd);
149 		hcd->usb_phy = usb_get_phy(USB_PHY_TYPE_USB2);
150 		dev_dbg(&pdev->dev, "hcd=0x%p  ehci=0x%p, phy=0x%p\n",
151 			hcd, ehci, hcd->usb_phy);
153 		if (!IS_ERR_OR_NULL(hcd->usb_phy)) {
154 			retval = otg_set_host(hcd->usb_phy->otg,
157 				usb_put_phy(hcd->usb_phy);
166 		hcd->skip_phy_initialization = 1;
172 	usb_put_hcd(hcd);
180 static bool usb_phy_clk_valid(struct usb_hcd *hcd)
182 	void __iomem *non_ehci = hcd->regs;
191 static int ehci_fsl_setup_phy(struct usb_hcd *hcd,
196 	struct ehci_hcd *ehci = hcd_to_ehci(hcd);
197 	void __iomem *non_ehci = hcd->regs;
198 	struct device *dev = hcd->self.controller;
202 		dev_warn(hcd->self.controller, "Could not get controller version\n");
248 		    pdata->have_sysif_regs && !usb_phy_clk_valid(hcd)) {
278 	    !usb_phy_clk_valid(hcd)) {
279 		dev_warn(hcd->self.controller, "USB PHY clock invalid\n");
297 	struct usb_hcd *hcd = ehci_to_hcd(ehci);
299 	void __iomem *non_ehci = hcd->regs;
301 	pdata = dev_get_platdata(hcd->self.controller);
327 		if (ehci_fsl_setup_phy(hcd, pdata->phy_mode, 0))
337 			if (ehci_fsl_setup_phy(hcd, pdata->phy_mode, 0))
341 			if (ehci_fsl_setup_phy(hcd, pdata->phy_mode, 1))
369 static int ehci_fsl_setup(struct usb_hcd *hcd)
371 	struct ehci_hcd *ehci = hcd_to_ehci(hcd);
376 	dev = hcd->self.controller;
377 	pdata = dev_get_platdata(hcd->self.controller);
382 	ehci->caps = hcd->regs + 0x100;
393 	hcd->has_tt = 1;
395 	retval = ehci_setup(hcd);
406 			    hcd->regs + FSL_SOC_USB_SBUSCFG);
427 	struct usb_hcd *hcd = dev_get_drvdata(dev);
428 	struct ehci_hcd *ehci = hcd_to_ehci(hcd);
433 	u32 mode = ehci_readl(ehci, hcd->regs + FSL_SOC_USB_USBMODE);
435 	tmp = ehci_readl(ehci, hcd->regs + 0x140);	/* usbcmd */
459 	clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
479 					  hcd->regs + FSL_SOC_USB_USBGENCTRL);
496 	struct usb_hcd *hcd = dev_get_drvdata(dev);
497 	struct ehci_hcd *ehci = hcd_to_ehci(hcd);
525 	ehci_writel(ehci, tmp, hcd->regs + FSL_SOC_USB_USBMODE);
528 		    hcd->regs + FSL_SOC_USB_USBGENCTRL);
530 		    hcd->regs + FSL_SOC_USB_ISIPHYCTRL);
532 	ehci_writel(ehci, SBUSCFG_INCR8, hcd->regs + FSL_SOC_USB_SBUSCFG);
545 	set_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
553 	usb_hcd_resume_root_hub(hcd);
569 static struct ehci_fsl *hcd_to_ehci_fsl(struct usb_hcd *hcd)
571 	struct ehci_hcd *ehci = hcd_to_ehci(hcd);
578 	struct usb_hcd *hcd = dev_get_drvdata(dev);
579 	struct ehci_fsl *ehci_fsl = hcd_to_ehci_fsl(hcd);
580 	void __iomem *non_ehci = hcd->regs;
587 	ehci_prepare_ports_for_controller_suspend(hcd_to_ehci(hcd),
598 	struct usb_hcd *hcd = dev_get_drvdata(dev);
599 	struct ehci_fsl *ehci_fsl = hcd_to_ehci_fsl(hcd);
600 	struct ehci_hcd *ehci = hcd_to_ehci(hcd);
601 	void __iomem *non_ehci = hcd->regs;
612 	usb_root_hub_lost_power(hcd->self.root_hub);
625 	struct usb_hcd *hcd = dev_get_drvdata(dev);
627 	usb_root_hub_lost_power(hcd->self.root_hub);
643 static int ehci_start_port_reset(struct usb_hcd *hcd, unsigned port)
645 	struct ehci_hcd *ehci = hcd_to_ehci(hcd);
689 	struct usb_hcd *hcd = platform_get_drvdata(pdev);
691 	if (!IS_ERR_OR_NULL(hcd->usb_phy)) {
692 		otg_set_host(hcd->usb_phy->otg, NULL);
693 		usb_put_phy(hcd->usb_phy);
696 	usb_remove_hcd(hcd);
704 	usb_put_hcd(hcd);