1 /* 2 * Copyright 2017 Emmanuel Vadot <manu@freebsd.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are 7 * met: 8 * 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 18 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE 19 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 20 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 21 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 22 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 23 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 24 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 25 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 */ 27 28 #include <sys/cdefs.h> 29 __FBSDID("$FreeBSD$"); 30 31 #include <sys/param.h> 32 #include <sys/kernel.h> 33 #include <sys/bus.h> 34 #include <sys/module.h> 35 36 #include <machine/bus.h> 37 38 #include <dev/mmc/bridge.h> 39 40 #include <dev/ofw/ofw_bus_subr.h> 41 42 #include <dev/mmc/host/dwmmc_var.h> 43 44 #include "opt_mmccam.h" 45 46 static struct ofw_compat_data compat_data[] = { 47 {"altr,socfpga-dw-mshc", 1}, 48 {NULL, 0}, 49 }; 50 51 static int 52 altera_dwmmc_probe(device_t dev) 53 { 54 55 if (!ofw_bus_status_okay(dev)) 56 return (ENXIO); 57 58 if (ofw_bus_search_compatible(dev, compat_data)->ocd_data == 0) 59 return (ENXIO); 60 61 device_set_desc(dev, "Synopsys DesignWare Mobile " 62 "Storage Host Controller (Altera)"); 63 64 return (BUS_PROBE_VENDOR); 65 } 66 67 static int 68 altera_dwmmc_attach(device_t dev) 69 { 70 struct dwmmc_softc *sc; 71 phandle_t root; 72 73 sc = device_get_softc(dev); 74 sc->hwtype = HWTYPE_ALTERA; 75 76 root = OF_finddevice("/"); 77 78 if (ofw_bus_node_is_compatible(root, "altr,socfpga-stratix10")) { 79 sc->bus_hz = 24000000; 80 sc->use_pio = 1; 81 } 82 83 return (dwmmc_attach(dev)); 84 } 85 86 static device_method_t altera_dwmmc_methods[] = { 87 /* bus interface */ 88 DEVMETHOD(device_probe, altera_dwmmc_probe), 89 DEVMETHOD(device_attach, altera_dwmmc_attach), 90 91 DEVMETHOD_END 92 }; 93 94 static devclass_t altera_dwmmc_devclass; 95 96 DEFINE_CLASS_1(altera_dwmmc, altera_dwmmc_driver, altera_dwmmc_methods, 97 sizeof(struct dwmmc_softc), dwmmc_driver); 98 99 DRIVER_MODULE(altera_dwmmc, simplebus, altera_dwmmc_driver, 100 altera_dwmmc_devclass, 0, 0); 101 DRIVER_MODULE(altera_dwmmc, ofwbus, altera_dwmmc_driver, altera_dwmmc_devclass 102 , NULL, NULL); 103 #ifndef MMCCAM 104 MMC_DECLARE_BRIDGE(altera_dwmmc); 105 #endif 106