1 /*- 2 * 3 * Copyright (c) 2020 Oskar Holmlund <oskar.holmlund@ohdata.se> 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 17 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 19 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 20 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 21 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 22 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * $FreeBSD$ 27 */ 28 29 #include <sys/cdefs.h> 30 __FBSDID("$FreeBSD$"); 31 32 #include <sys/param.h> 33 #include <sys/systm.h> 34 #include <sys/bus.h> 35 #include <sys/fbio.h> 36 #include <sys/kernel.h> 37 #include <sys/module.h> 38 #include <sys/rman.h> 39 #include <sys/resource.h> 40 #include <machine/bus.h> 41 #include <vm/vm.h> 42 #include <vm/vm_extern.h> 43 #include <vm/vm_kern.h> 44 #include <vm/pmap.h> 45 46 #include <dev/fdt/simplebus.h> 47 48 #include <dev/ofw/ofw_bus.h> 49 #include <dev/ofw/ofw_bus_subr.h> 50 51 #define TI_AM335X_USB_PHY 1 52 #define TI_AM335X_USB_PHY_END 0 53 54 static struct ofw_compat_data compat_data[] = { 55 { "ti,am335x-usb-phy", TI_AM335X_USB_PHY }, 56 { NULL, TI_AM335X_USB_PHY_END } 57 }; 58 59 struct ti_usb_phy_softc { 60 device_t dev; 61 }; 62 63 static int ti_usb_phy_probe(device_t dev); 64 static int ti_usb_phy_attach(device_t dev); 65 static int ti_usb_phy_detach(device_t dev); 66 67 static int 68 ti_usb_phy_probe(device_t dev) 69 { 70 if (!ofw_bus_status_okay(dev)) 71 return (ENXIO); 72 73 if (ofw_bus_search_compatible(dev, compat_data)->ocd_data == 0) 74 return (ENXIO); 75 76 device_set_desc(dev, "TI AM335x USB PHY"); 77 if (!bootverbose) 78 device_quiet(dev); 79 80 return (BUS_PROBE_DEFAULT); 81 } 82 83 static int 84 ti_usb_phy_attach(device_t dev) 85 { 86 struct ti_usb_phy_softc *sc; 87 88 sc = device_get_softc(dev); 89 sc->dev = dev; 90 91 /* FIXME: Add dev/extres/phy/ interface */ 92 93 return (bus_generic_attach(dev)); 94 } 95 96 static int 97 ti_usb_phy_detach(device_t dev) 98 { 99 return (EBUSY); 100 } 101 102 static device_method_t ti_usb_phy_methods[] = { 103 /* Device interface */ 104 DEVMETHOD(device_probe, ti_usb_phy_probe), 105 DEVMETHOD(device_attach, ti_usb_phy_attach), 106 DEVMETHOD(device_detach, ti_usb_phy_detach), 107 108 DEVMETHOD_END 109 }; 110 111 DEFINE_CLASS_1(ti_usb_phy, ti_usb_phy_driver, ti_usb_phy_methods, 112 sizeof(struct ti_usb_phy_softc), simplebus_driver); 113 114 static devclass_t ti_usb_phy_devclass; 115 116 EARLY_DRIVER_MODULE(ti_usb_phy, simplebus, ti_usb_phy_driver, 117 ti_usb_phy_devclass, 0, 0, BUS_PASS_BUS + BUS_PASS_ORDER_FIRST); 118 MODULE_VERSION(ti_usb_phy, 1); 119 MODULE_DEPEND(ti_usb_phy, ti_sysc, 1, 1, 1); 120