1 /*-
27  * Allwinner USB PHY
46 #include <dev/phy/phy_usb.h>
125 	{ "allwinner,sun4i-a10-usb-phy",	(uintptr_t)&a10_usbphy_conf },
126 	{ "allwinner,sun5i-a13-usb-phy",	(uintptr_t)&a13_usbphy_conf },
127 	{ "allwinner,sun6i-a31-usb-phy",	(uintptr_t)&a31_usbphy_conf },
128 	{ "allwinner,sun7i-a20-usb-phy",	(uintptr_t)&a20_usbphy_conf },
129 	{ "allwinner,sun8i-h3-usb-phy",		(uintptr_t)&h3_usbphy_conf },
130 	{ "allwinner,sun50i-a64-usb-phy",	(uintptr_t)&a64_usbphy_conf },
131 	{ "allwinner,sun8i-a83t-usb-phy",	(uintptr_t)&a83t_usbphy_conf },
132 	{ "allwinner,sun50i-h6-usb-phy",	(uintptr_t)&h6_usbphy_conf },
148  /* Phy class and methods. */
149 static int awusbphy_phy_enable(struct phynode *phy, bool enable);
150 static int awusbphy_get_mode(struct phynode *phy, int *mode);
151 static int awusbphy_set_mode(struct phynode *phy, int mode);
198 	if (sc->pmu[phyno] == NULL)  in awusbphy_configure()
201 	if (sc->phy_conf->pmu_unk1 == true)  in awusbphy_configure()
202 		CLR4(sc->pmu[phyno], PMU_UNK_H3, PMU_UNK_H3_CLR);  in awusbphy_configure()
204 	SET4(sc->pmu[phyno], PMU_IRQ_ENABLE, PMU_ULPI_BYPASS |  in awusbphy_configure()
223 	sc->phy_conf = (struct aw_usbphy_conf *)ofw_bus_search_compatible(dev, compat_data)->ocd_data;  in awusbphy_init()
226 	if (ofw_bus_find_string_index(node, "reg-names", "phy_ctrl", &rid) != 0) {  in awusbphy_init()
227 		device_printf(dev, "Cannot locate phy control resource\n");  in awusbphy_init()
230 	sc->phy_ctrl = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid,  in awusbphy_init()
232 	if (sc->phy_ctrl == NULL) {  in awusbphy_init()
247 	/* De-assert resets */  in awusbphy_init()
251 			device_printf(dev, "couldn't de-assert reset %d\n",  in awusbphy_init()
258 	error = gpio_pin_get_by_ofw_property(dev, node, "usb0_id_det-gpios",  in awusbphy_init()
259 	    &sc->id_det_pin);  in awusbphy_init()
261 		sc->id_det_valid = 1;  in awusbphy_init()
262 	error = gpio_pin_get_by_ofw_property(dev, node, "usb0_vbus_det-gpios",  in awusbphy_init()
263 	    &sc->vbus_det_pin);  in awusbphy_init()
265 		sc->vbus_det_valid = 1;  in awusbphy_init()
267 	sc->reg = malloc(sizeof(*(sc->reg)) * sc->phy_conf->num_phys, M_DEVBUF,  in awusbphy_init()
269 	sc->pmu = malloc(sizeof(*(sc->pmu)) * sc->phy_conf->num_phys, M_DEVBUF,  in awusbphy_init()
272 	for (off = 0; off < sc->phy_conf->num_phys; off++) {  in awusbphy_init()
273 		snprintf(pname, sizeof(pname), "usb%d_vbus-supply", off);  in awusbphy_init()
275 			sc->reg[off] = reg;  in awusbphy_init()
278 		if (ofw_bus_find_string_index(node, "reg-names",  in awusbphy_init()
282 		sc->pmu[off] = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid,  in awusbphy_init()
284 		if (sc->pmu[off] == NULL) {  in awusbphy_init()
290 	/* Enable OTG PHY for host mode */  in awusbphy_init()
291 	val = bus_read_4(sc->phy_ctrl, PHY_CSR);  in awusbphy_init()
298 	bus_write_4(sc->phy_ctrl, PHY_CSR, val);  in awusbphy_init()
312 	if (sc->vbus_det_valid) {  in awusbphy_vbus_detect()
313 		error = gpio_pin_is_active(sc->vbus_det_pin, &active);  in awusbphy_vbus_detect()
323 	/* TODO check vbus_power-supply. */  in awusbphy_vbus_detect()
336 	intptr_t phy;  in awusbphy_phy_enable()  local
342 	phy = phynode_get_id(phynode);  in awusbphy_phy_enable()
345 	if (phy < 0 || phy >= sc->phy_conf->num_phys)  in awusbphy_phy_enable()
348 	/* Configure PHY */  in awusbphy_phy_enable()
349 	awusbphy_configure(dev, phy);  in awusbphy_phy_enable()
352 	reg = sc->reg[phy];  in awusbphy_phy_enable()
356 	if (phy == 0) {  in awusbphy_phy_enable()
357 		/* If an external vbus is detected, do not enable phy 0 */  in awusbphy_phy_enable()
362 		/* TODO check vbus_power-supply as well. */  in awusbphy_phy_enable()
363 		if (sc->vbus_det_valid && vbus_det == 1) {  in awusbphy_phy_enable()
371 		/* Depending on the PHY we need to route OTG to OHCI/EHCI */  in awusbphy_phy_enable()
379 		    "couldn't %s regulator for phy %jd\n",  in awusbphy_phy_enable()
380 		    enable ? "enable" : "disable", (intmax_t)phy);  in awusbphy_phy_enable()
396 	*mode = sc->mode;  in awusbphy_get_mode()
405 	intptr_t phy;  in awusbphy_set_mode()  local
411 	phy = phynode_get_id(phynode);  in awusbphy_set_mode()
414 	if (phy != 0) {  in awusbphy_set_mode()
420 	if (sc->mode == mode)  in awusbphy_set_mode()
429 	val = bus_read_4(sc->phy_ctrl, PHY_CSR);  in awusbphy_set_mode()
440 		if (sc->phy_conf->phy0_route)  in awusbphy_set_mode()
441 			CLR4(sc->phy_ctrl, OTG_PHY_CFG, OTG_PHY_ROUTE_OTG);  in awusbphy_set_mode()
445 		if (sc->phy_conf->phy0_route)  in awusbphy_set_mode()
446 			SET4(sc->phy_ctrl, OTG_PHY_CFG, OTG_PHY_ROUTE_OTG);  in awusbphy_set_mode()
452 	bus_write_4(sc->phy_ctrl, PHY_CSR, val);  in awusbphy_set_mode()
453 	sc->mode = mode;  in awusbphy_set_mode()
463 	if (ofw_bus_search_compatible(dev, compat_data)->ocd_data == 0)  in awusbphy_probe()
466 	device_set_desc(dev, "Allwinner USB PHY");  in awusbphy_probe()
482 		device_printf(dev, "failed to initialize USB PHY, error %d\n",  in awusbphy_attach()
488 	for (i = 0; i < sc->phy_conf->num_phys; i++) {  in awusbphy_attach()
495 			device_printf(dev, "failed to create USB PHY\n");  in awusbphy_attach()
499 			device_printf(dev, "failed to create USB PHY\n");  in awusbphy_attach()