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