1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 2012 Robert N. M. Watson 5 * All rights reserved. 6 * 7 * This software was developed by SRI International and the University of 8 * Cambridge Computer Laboratory under DARPA/AFRL contract (FA8750-10-C-0237) 9 * ("CTSRD"), as part of the DARPA CRASH research programme. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 */ 32 33 #include <sys/param.h> 34 #include <sys/bus.h> 35 #include <sys/condvar.h> 36 #include <sys/conf.h> 37 #include <sys/bio.h> 38 #include <sys/kernel.h> 39 #include <sys/lock.h> 40 #include <sys/malloc.h> 41 #include <sys/module.h> 42 #include <sys/mutex.h> 43 #include <sys/rman.h> 44 #include <sys/systm.h> 45 #include <sys/taskqueue.h> 46 47 #include <machine/bus.h> 48 #include <machine/resource.h> 49 50 #include <geom/geom_disk.h> 51 52 #include <dev/altera/sdcard/altera_sdcard.h> 53 54 #include <dev/fdt/fdt_common.h> 55 #include <dev/ofw/openfirm.h> 56 #include <dev/ofw/ofw_bus.h> 57 #include <dev/ofw/ofw_bus_subr.h> 58 59 /* 60 * FDT bus attachment for the Altera SD Card IP core. 61 */ 62 static int 63 altera_sdcard_fdt_probe(device_t dev) 64 { 65 66 if (!ofw_bus_status_okay(dev)) 67 return (ENXIO); 68 69 if (ofw_bus_is_compatible(dev, "altera,sdcard_11_2011")) { 70 device_set_desc(dev, "Altera Secure Data Card IP Core"); 71 return (BUS_PROBE_DEFAULT); 72 } 73 return (ENXIO); 74 } 75 76 static int 77 altera_sdcard_fdt_attach(device_t dev) 78 { 79 struct altera_sdcard_softc *sc; 80 81 sc = device_get_softc(dev); 82 sc->as_dev = dev; 83 sc->as_unit = device_get_unit(dev); 84 sc->as_rid = 0; 85 sc->as_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, 86 &sc->as_rid, RF_ACTIVE); 87 if (sc->as_res == NULL) { 88 device_printf(dev, "couldn't map memory\n"); 89 return (ENXIO); 90 } 91 altera_sdcard_attach(sc); 92 return (0); 93 } 94 95 static int 96 altera_sdcard_fdt_detach(device_t dev) 97 { 98 struct altera_sdcard_softc *sc; 99 100 sc = device_get_softc(dev); 101 KASSERT(sc->as_res != NULL, ("%s: resources not allocated", 102 __func__)); 103 altera_sdcard_detach(sc); 104 bus_release_resource(dev, SYS_RES_MEMORY, sc->as_rid, sc->as_res); 105 return (0); 106 } 107 108 static device_method_t altera_sdcard_fdt_methods[] = { 109 DEVMETHOD(device_probe, altera_sdcard_fdt_probe), 110 DEVMETHOD(device_attach, altera_sdcard_fdt_attach), 111 DEVMETHOD(device_detach, altera_sdcard_fdt_detach), 112 { 0, 0 } 113 }; 114 115 static driver_t altera_sdcard_fdt_driver = { 116 "altera_sdcardc", 117 altera_sdcard_fdt_methods, 118 sizeof(struct altera_sdcard_softc), 119 }; 120 121 DRIVER_MODULE(altera_sdcard, simplebus, altera_sdcard_fdt_driver, 0, 0); 122