1 /* $OpenBSD: qcdwusb.c,v 1.1 2022/11/06 12:12:45 patrick Exp $ */ 2 /* 3 * Copyright (c) 2017, 2018 Mark Kettenis <kettenis@openbsd.org> 4 * Copyright (c) 2020, 2022 Patrick Wildt <patrick@blueri.se> 5 * 6 * Permission to use, copy, modify, and distribute this software for any 7 * purpose with or without fee is hereby granted, provided that the above 8 * copyright notice and this permission notice appear in all copies. 9 * 10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 17 */ 18 19 #include <sys/param.h> 20 #include <sys/systm.h> 21 #include <sys/device.h> 22 23 #include <machine/bus.h> 24 #include <machine/fdt.h> 25 26 #include <arm64/dev/simplebusvar.h> 27 28 #include <dev/ofw/openfirm.h> 29 #include <dev/ofw/ofw_clock.h> 30 #include <dev/ofw/ofw_power.h> 31 #include <dev/ofw/fdt.h> 32 33 struct qcdwusb_softc { 34 struct simplebus_softc sc_sbus; 35 }; 36 37 int qcdwusb_match(struct device *, void *, void *); 38 void qcdwusb_attach(struct device *, struct device *, void *); 39 40 const struct cfattach qcdwusb_ca = { 41 sizeof(struct qcdwusb_softc), qcdwusb_match, qcdwusb_attach 42 }; 43 44 struct cfdriver qcdwusb_cd = { 45 NULL, "qcdwusb", DV_DULL 46 }; 47 48 int 49 qcdwusb_match(struct device *parent, void *match, void *aux) 50 { 51 struct fdt_attach_args *faa = aux; 52 53 return OF_is_compatible(faa->fa_node, "qcom,dwc3"); 54 } 55 56 void 57 qcdwusb_attach(struct device *parent, struct device *self, void *aux) 58 { 59 struct qcdwusb_softc *sc = (struct qcdwusb_softc *)self; 60 struct fdt_attach_args *faa = aux; 61 62 power_domain_enable(faa->fa_node); 63 clock_enable_all(faa->fa_node); 64 reset_deassert_all(faa->fa_node); 65 66 simplebus_attach(parent, &sc->sc_sbus.sc_dev, faa); 67 } 68