1 // SPDX-License-Identifier: GPL-2.0+
3  * Faraday USB 2.0 EHCI Controller
6  * Dante Su <dantesu@faraday-tech.com>
11 #include <usb.h>
12 #include <usb/fusbh200.h>
13 #include <usb/fotg210.h>
22 	struct fusbh200_regs usb;  member
23 	struct fotg210_regs  otg;  member
28 	return !readl(&regs->usb.easstr);  in ehci_is_fotg2xx()
41 	ret = (void __iomem *)((ulong)ctrl->hcor - 0x10);  in faraday_ehci_get_port_speed()
43 		spd = OTGCSR_SPD(readl(&regs->otg.otgcsr));  in faraday_ehci_get_port_speed()
45 		spd = BMCSR_SPD(readl(&regs->usb.bmcsr));  in faraday_ehci_get_port_speed()
58 		printf("ehci-faraday: invalid device speed\n");  in faraday_ehci_get_port_speed()
75 	return (uint32_t *)((uint8_t *)ctrl->hcor + 0x20);  in faraday_ehci_get_portsc_register()
97 		return -1;  in ehci_hcd_init()
100 	hccr = (struct ehci_hccr *)&regs->usb.hccr;  in ehci_hcd_init()
101 	hcor = (struct ehci_hcor *)&regs->usb.hcor;  in ehci_hcd_init()
104 		/* A-device bus reset */  in ehci_hcd_init()
105 		/* ... Power off A-device */  in ehci_hcd_init()
106 		setbits_le32(&regs->otg.otgcsr, OTGCSR_A_BUSDROP);  in ehci_hcd_init()
107 		/* ... Drop vbus and bus traffic */  in ehci_hcd_init()
108 		clrbits_le32(&regs->otg.otgcsr, OTGCSR_A_BUSREQ);  in ehci_hcd_init()
110 		/* ... Power on A-device */  in ehci_hcd_init()
111 		clrbits_le32(&regs->otg.otgcsr, OTGCSR_A_BUSDROP);  in ehci_hcd_init()
112 		/* ... Drive vbus and bus traffic */  in ehci_hcd_init()
113 		setbits_le32(&regs->otg.otgcsr, OTGCSR_A_BUSREQ);  in ehci_hcd_init()
115 		/* Disable OTG & DEV interrupts, triggered at level-high */  in ehci_hcd_init()
116 		writel(IMR_IRQLH | IMR_OTG | IMR_DEV, &regs->otg.imr);  in ehci_hcd_init()
118 		writel(ISR_HOST | ISR_OTG | ISR_DEV, &regs->otg.isr);  in ehci_hcd_init()
120 		/* Interrupt=level-high */  in ehci_hcd_init()
121 		setbits_le32(&regs->usb.bmcsr, BMCSR_IRQLH);  in ehci_hcd_init()
122 		/* VBUS on */  in ehci_hcd_init()
123 		clrbits_le32(&regs->usb.bmcsr, BMCSR_VBUS_OFF);  in ehci_hcd_init()
125 		writel(0x00, &regs->usb.bmier);  in ehci_hcd_init()
126 		writel(0x1f, &regs->usb.bmisr);  in ehci_hcd_init()