3  * Generic platform ehci driver
12  * Derived from the EHCI-PCI driver
40 #include "ehci.h"
42 #define DRIVER_DESC "EHCI generic platform driver"
58 static const char hcd_name[] = "ehci-platform";
62 	struct ehci_hcd *ehci = hcd_to_ehci(hcd);  in ehci_rockchip_relinquish_port()  local
63 	u32 __iomem *status_reg = &ehci->regs->port_status[--portnum];  in ehci_rockchip_relinquish_port()
66 	portsc = ehci_readl(ehci, status_reg);  in ehci_rockchip_relinquish_port()
69 	ehci_writel(ehci, portsc, status_reg);  in ehci_rockchip_relinquish_port()
81 	struct ehci_hcd *ehci = hcd_to_ehci(hcd);  in ehci_usic_init()  local
83 	ehci_writel(ehci, USIC_ENABLE,  in ehci_usic_init()
85 	ehci_writel(ehci, USIC_MICROFRAME_COUNT,  in ehci_usic_init()
87 	ehci_writel(ehci, USIC_SCALE_DOWN,  in ehci_usic_init()
95 	struct ehci_hcd *ehci = hcd_to_ehci(hcd);  in ehci_platform_reset()  local
98 	ehci->has_synopsys_hc_bug = pdata->has_synopsys_hc_bug;  in ehci_platform_reset()
106 	ehci->caps = hcd->regs + pdata->caps_offset;  in ehci_platform_reset()
112 		ehci->need_io_watchdog = 0;  in ehci_platform_reset()
114 	if (of_device_is_compatible(pdev->dev.of_node, "brcm,xgs-iproc-ehci"))  in ehci_platform_reset()
115 		ehci_writel(ehci, BCM_USB_FIFO_THRESHOLD,  in ehci_platform_reset()
116 			    &ehci->regs->bcm_iproc_insnreg01);  in ehci_platform_reset()
168  * @ehci: the ehci hcd pointer
170  * Since EHCI/OHCI controllers on R-Car Gen3 SoCs are possible to be getting
173  * the EHCI PORTSC register.
177 static bool quirk_poll_check_port_status(struct ehci_hcd *ehci)  in quirk_poll_check_port_status()  argument
179 	u32 port_status = ehci_readl(ehci, &ehci->regs->port_status[0]);  in quirk_poll_check_port_status()
192  * @ehci: the ehci hcd pointer
194  * Since EHCI/OHCI controllers on R-Car Gen3 SoCs are possible to be getting
199 static void quirk_poll_rebind_companion(struct ehci_hcd *ehci)  in quirk_poll_rebind_companion()  argument
202 	struct usb_hcd *hcd = ehci_to_hcd(ehci);  in quirk_poll_rebind_companion()
210 		ehci_err(ehci, "%s: failed\n", __func__);  in quirk_poll_rebind_companion()
220 	struct ehci_hcd *ehci = container_of((void *)priv, struct ehci_hcd,  in quirk_poll_work()  local
224 	if (!quirk_poll_check_port_status(ehci))  in quirk_poll_work()
227 	if (!quirk_poll_check_port_status(ehci))  in quirk_poll_work()
230 	ehci_dbg(ehci, "%s: detected getting stuck. rebind now!\n", __func__);  in quirk_poll_work()
231 	quirk_poll_rebind_companion(ehci);  in quirk_poll_work()
237 	struct ehci_hcd *ehci = container_of((void *)priv, struct ehci_hcd,  in quirk_poll_timer()  local
240 	if (quirk_poll_check_port_status(ehci)) {  in quirk_poll_timer()
277 	struct ehci_hcd *ehci;  in ehci_platform_probe()  local
311 	ehci = hcd_to_ehci(hcd);  in ehci_platform_probe()
315 			ehci->big_endian_mmio = 1;  in ehci_platform_probe()
318 			ehci->big_endian_desc = 1;  in ehci_platform_probe()
321 			ehci->big_endian_mmio = ehci->big_endian_desc = 1;  in ehci_platform_probe()
332 					    "aspeed,ast2500-ehci") ||  in ehci_platform_probe()
334 					    "aspeed,ast2600-ehci"))  in ehci_platform_probe()
335 			ehci->is_aspeed = 1;  in ehci_platform_probe()
369 		ehci->big_endian_desc = 1;  in ehci_platform_probe()
371 		ehci->big_endian_mmio = 1;  in ehci_platform_probe()
378 	if (ehci->big_endian_mmio) {  in ehci_platform_probe()
386 	if (ehci->big_endian_desc) {  in ehci_platform_probe()
420 				    "rockchip,rk3588-ehci")) {  in ehci_platform_probe()
475 				    "rockchip,rk3588-ehci")) {  in ehci_platform_remove()
560 	{ .compatible = "via,vt8500-ehci", },
561 	{ .compatible = "wm,prizm-ehci", },
562 	{ .compatible = "generic-ehci", },
563 	{ .compatible = "cavium,octeon-6335-ehci", },
570 	{ "PNP0D20", 0 }, /* EHCI controller without debug */
577 	{ "ehci-platform", 0 },
591 		.name	= "ehci-platform",