1 // SPDX-License-Identifier: GPL-2.0+
3  * SAMSUNG EXYNOS USB HOST EHCI Controller
14 #include <usb.h>
36  * for the usb controller.
40 	struct exynos_usb_phy *usb;  member
47 	const void *blob = gd->fdt_blob;  in ehci_usb_ofdata_to_platdata()
54 	plat->hcd_base = devfdt_get_addr(dev);  in ehci_usb_ofdata_to_platdata()
55 	if (plat->hcd_base == FDT_ADDR_T_NONE) {  in ehci_usb_ofdata_to_platdata()
57 		return -ENXIO;  in ehci_usb_ofdata_to_platdata()
64 		debug("XHCI: Can't get device node for usb3-phy controller\n");  in ehci_usb_ofdata_to_platdata()
65 		return -ENODEV;  in ehci_usb_ofdata_to_platdata()
71 	plat->phy_base = fdtdec_get_addr(blob, node, "reg");  in ehci_usb_ofdata_to_platdata()
72 	if (plat->phy_base == FDT_ADDR_T_NONE) {  in ehci_usb_ofdata_to_platdata()
74 		return -ENXIO;  in ehci_usb_ofdata_to_platdata()
78 	gpio_request_by_name(dev, "samsung,vbus-gpio", 0,  in ehci_usb_ofdata_to_platdata()
79 			     &plat->vbus_gpio, GPIOD_IS_OUT);  in ehci_usb_ofdata_to_platdata()
84 static void exynos5_setup_usb_phy(struct exynos_usb_phy *usb)  in exynos5_setup_usb_phy()  argument
88 	clrbits_le32(&usb->usbphyctrl0,  in exynos5_setup_usb_phy()
91 			/* HOST Phy setting */  in exynos5_setup_usb_phy()
98 	setbits_le32(&usb->usbphyctrl0,  in exynos5_setup_usb_phy()
101 			/* HOST Phy setting */  in exynos5_setup_usb_phy()
105 	clrbits_le32(&usb->usbphyctrl0,  in exynos5_setup_usb_phy()
109 	/* HSIC Phy Setting */  in exynos5_setup_usb_phy()
114 	clrbits_le32(&usb->hsicphyctrl1, hsic_ctrl);  in exynos5_setup_usb_phy()
115 	clrbits_le32(&usb->hsicphyctrl2, hsic_ctrl);  in exynos5_setup_usb_phy()
123 	setbits_le32(&usb->hsicphyctrl1, hsic_ctrl);  in exynos5_setup_usb_phy()
124 	setbits_le32(&usb->hsicphyctrl2, hsic_ctrl);  in exynos5_setup_usb_phy()
128 	clrbits_le32(&usb->hsicphyctrl1, HSIC_CTRL_PHYSWRST |  in exynos5_setup_usb_phy()
131 	clrbits_le32(&usb->hsicphyctrl2, HSIC_CTRL_PHYSWRST |  in exynos5_setup_usb_phy()
137 	setbits_le32(&usb->ehcictrl,  in exynos5_setup_usb_phy()
144 static void exynos4412_setup_usb_phy(struct exynos4412_usb_phy *usb)  in exynos4412_setup_usb_phy()  argument
146 	writel(CLK_24MHZ, &usb->usbphyclk);  in exynos4412_setup_usb_phy()
148 	clrbits_le32(&usb->usbphyctrl, (PHYPWR_NORMAL_MASK_HSIC0 |  in exynos4412_setup_usb_phy()
152 	setbits_le32(&usb->usbphyrstcon, (RSTCON_HOSTPHY_SWRST | RSTCON_SWRST));  in exynos4412_setup_usb_phy()
154 	clrbits_le32(&usb->usbphyrstcon, (RSTCON_HOSTPHY_SWRST | RSTCON_SWRST));  in exynos4412_setup_usb_phy()
157 static void setup_usb_phy(struct exynos_usb_phy *usb)  in setup_usb_phy()  argument
164 		exynos5_setup_usb_phy(usb);  in setup_usb_phy()
168 						 usb);  in setup_usb_phy()
171 static void exynos5_reset_usb_phy(struct exynos_usb_phy *usb)  in exynos5_reset_usb_phy()  argument
176 	setbits_le32(&usb->usbphyctrl0,  in exynos5_reset_usb_phy()
183 	/* HSIC Phy reset */  in exynos5_reset_usb_phy()
189 	setbits_le32(&usb->hsicphyctrl1, hsic_ctrl);  in exynos5_reset_usb_phy()
190 	setbits_le32(&usb->hsicphyctrl2, hsic_ctrl);  in exynos5_reset_usb_phy()
193 static void exynos4412_reset_usb_phy(struct exynos4412_usb_phy *usb)  in exynos4412_reset_usb_phy()  argument
195 	setbits_le32(&usb->usbphyctrl, (PHYPWR_NORMAL_MASK_HSIC0 |  in exynos4412_reset_usb_phy()
201 static void reset_usb_phy(struct exynos_usb_phy *usb)  in reset_usb_phy()  argument
204 		exynos5_reset_usb_phy(usb);  in reset_usb_phy()
208 						 usb);  in reset_usb_phy()
219 	ctx->hcd = (struct ehci_hccr *)plat->hcd_base;  in ehci_usb_probe()
220 	ctx->usb = (struct exynos_usb_phy *)plat->phy_base;  in ehci_usb_probe()
223 	if (dm_gpio_is_valid(&plat->vbus_gpio))  in ehci_usb_probe()
224 		dm_gpio_set_value(&plat->vbus_gpio, 1);  in ehci_usb_probe()
226 	setup_usb_phy(ctx->usb);  in ehci_usb_probe()
227 	hcor = (struct ehci_hcor *)((uint32_t)ctx->hcd +  in ehci_usb_probe()
228 			HC_LENGTH(ehci_readl(&ctx->hcd->cr_capbase)));  in ehci_usb_probe()
230 	return ehci_register(dev, ctx->hcd, hcor, NULL, 0, USB_INIT_HOST);  in ehci_usb_probe()
241 	reset_usb_phy(ctx->usb);  in ehci_usb_remove()
247 	{ .compatible = "samsung,exynos-ehci" },