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 54static struct ofw_compat_data compat_data[] = { 55 { "ti,am335x-usb-phy", TI_AM335X_USB_PHY }, 56 { NULL, TI_AM335X_USB_PHY_END } 57}; 58 59struct ti_usb_phy_softc { 60 device_t dev; 61}; 62 63static int ti_usb_phy_probe(device_t dev); 64static int ti_usb_phy_attach(device_t dev); 65static int ti_usb_phy_detach(device_t dev); 66 67static int 68ti_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 83static int 84ti_usb_phy_attach(device_t dev) 85{ 86 struct ti_usb_phy_softc *sc; 87 phandle_t node; 88 89 sc = device_get_softc(dev); 90 sc->dev = dev; 91 node = ofw_bus_get_node(dev); 92 93 /* FIXME: Add dev/extres/phy/ interface */ 94 95 return (bus_generic_attach(dev)); 96} 97 98static int 99ti_usb_phy_detach(device_t dev) 100{ 101 return (EBUSY); 102} 103 104static device_method_t ti_usb_phy_methods[] = { 105 /* Device interface */ 106 DEVMETHOD(device_probe, ti_usb_phy_probe), 107 DEVMETHOD(device_attach, ti_usb_phy_attach), 108 DEVMETHOD(device_detach, ti_usb_phy_detach), 109 110 DEVMETHOD_END 111}; 112 113DEFINE_CLASS_1(ti_usb_phy, ti_usb_phy_driver, ti_usb_phy_methods, 114 sizeof(struct ti_usb_phy_softc), simplebus_driver); 115 116static devclass_t ti_usb_phy_devclass; 117 118EARLY_DRIVER_MODULE(ti_usb_phy, simplebus, ti_usb_phy_driver, 119 ti_usb_phy_devclass, 0, 0, BUS_PASS_BUS + BUS_PASS_ORDER_FIRST); 120MODULE_VERSION(ti_usb_phy, 1); 121MODULE_DEPEND(ti_usb_phy, ti_sysc, 1, 1, 1); 122