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#include <sys/queue.h> 36#include <sys/taskqueue.h> 37 38#include <machine/bus.h> 39 40#include <dev/mmc/bridge.h> 41#include <dev/mmc/mmc_fdt_helpers.h> 42 43#include <dev/ofw/ofw_bus_subr.h> 44 45#include <dev/mmc/host/dwmmc_var.h> 46 47#include "opt_mmccam.h" 48 49static struct ofw_compat_data compat_data[] = { 50 {"altr,socfpga-dw-mshc", 1}, 51 {NULL, 0}, 52}; 53 54static int 55altera_dwmmc_probe(device_t dev) 56{ 57 58 if (!ofw_bus_status_okay(dev)) 59 return (ENXIO); 60 61 if (ofw_bus_search_compatible(dev, compat_data)->ocd_data == 0) 62 return (ENXIO); 63 64 device_set_desc(dev, "Synopsys DesignWare Mobile " 65 "Storage Host Controller (Altera)"); 66 67 return (BUS_PROBE_VENDOR); 68} 69 70static int 71altera_dwmmc_attach(device_t dev) 72{ 73 struct dwmmc_softc *sc; 74 phandle_t root; 75 76 sc = device_get_softc(dev); 77 sc->hwtype = HWTYPE_ALTERA; 78 79 root = OF_finddevice("/"); 80 81 if (ofw_bus_node_is_compatible(root, "altr,socfpga-stratix10")) { 82 sc->bus_hz = 24000000; 83 sc->use_pio = 1; 84 } 85 86 return (dwmmc_attach(dev)); 87} 88 89static device_method_t altera_dwmmc_methods[] = { 90 /* bus interface */ 91 DEVMETHOD(device_probe, altera_dwmmc_probe), 92 DEVMETHOD(device_attach, altera_dwmmc_attach), 93 94 DEVMETHOD_END 95}; 96 97static devclass_t altera_dwmmc_devclass; 98 99DEFINE_CLASS_1(altera_dwmmc, altera_dwmmc_driver, altera_dwmmc_methods, 100 sizeof(struct dwmmc_softc), dwmmc_driver); 101 102DRIVER_MODULE(altera_dwmmc, simplebus, altera_dwmmc_driver, 103 altera_dwmmc_devclass, 0, 0); 104DRIVER_MODULE(altera_dwmmc, ofwbus, altera_dwmmc_driver, altera_dwmmc_devclass 105 , NULL, NULL); 106#ifndef MMCCAM 107MMC_DECLARE_BRIDGE(altera_dwmmc); 108#endif 109