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 27 #include <sys/param.h> 28 #include <sys/systm.h> 29 #include <sys/bus.h> 30 #include <sys/fbio.h> 31 #include <sys/kernel.h> 32 #include <sys/module.h> 33 #include <sys/rman.h> 34 #include <sys/resource.h> 35 #include <machine/bus.h> 36 #include <vm/vm.h> 37 #include <vm/vm_extern.h> 38 #include <vm/vm_kern.h> 39 #include <vm/pmap.h> 40 41 #include <dev/fdt/simplebus.h> 42 43 #include <dev/ofw/ofw_bus.h> 44 #include <dev/ofw/ofw_bus_subr.h> 45 46 #define TI_AM335X_USB_PHY 1 47 #define TI_AM335X_USB_PHY_END 0 48 49 static struct ofw_compat_data compat_data[] = { 50 { "ti,am335x-usb-phy", TI_AM335X_USB_PHY }, 51 { NULL, TI_AM335X_USB_PHY_END } 52 }; 53 54 struct ti_usb_phy_softc { 55 device_t dev; 56 }; 57 58 static int ti_usb_phy_probe(device_t dev); 59 static int ti_usb_phy_attach(device_t dev); 60 static int ti_usb_phy_detach(device_t dev); 61 62 static int 63 ti_usb_phy_probe(device_t dev) 64 { 65 if (!ofw_bus_status_okay(dev)) 66 return (ENXIO); 67 68 if (ofw_bus_search_compatible(dev, compat_data)->ocd_data == 0) 69 return (ENXIO); 70 71 device_set_desc(dev, "TI AM335x USB PHY"); 72 if (!bootverbose) 73 device_quiet(dev); 74 75 return (BUS_PROBE_DEFAULT); 76 } 77 78 static int 79 ti_usb_phy_attach(device_t dev) 80 { 81 struct ti_usb_phy_softc *sc; 82 83 sc = device_get_softc(dev); 84 sc->dev = dev; 85 86 /* FIXME: Add dev/extres/phy/ interface */ 87 88 return (bus_generic_attach(dev)); 89 } 90 91 static int 92 ti_usb_phy_detach(device_t dev) 93 { 94 return (EBUSY); 95 } 96 97 static device_method_t ti_usb_phy_methods[] = { 98 /* Device interface */ 99 DEVMETHOD(device_probe, ti_usb_phy_probe), 100 DEVMETHOD(device_attach, ti_usb_phy_attach), 101 DEVMETHOD(device_detach, ti_usb_phy_detach), 102 103 DEVMETHOD_END 104 }; 105 106 DEFINE_CLASS_1(ti_usb_phy, ti_usb_phy_driver, ti_usb_phy_methods, 107 sizeof(struct ti_usb_phy_softc), simplebus_driver); 108 109 EARLY_DRIVER_MODULE(ti_usb_phy, simplebus, ti_usb_phy_driver, 0, 0, 110 BUS_PASS_BUS + BUS_PASS_ORDER_FIRST); 111 MODULE_VERSION(ti_usb_phy, 1); 112 MODULE_DEPEND(ti_usb_phy, ti_sysc, 1, 1, 1); 113