1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 2015 Semihalf. 5 * Copyright (c) 2015 Stormshield. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30 #include <sys/cdefs.h> 31 #include "opt_bus.h" 32 33 #include <sys/param.h> 34 #include <sys/systm.h> 35 #include <sys/bus.h> 36 #include <sys/condvar.h> 37 #include <sys/kernel.h> 38 #include <sys/module.h> 39 40 #include <dev/usb/usb.h> 41 #include <dev/usb/usbdi.h> 42 43 #include <dev/usb/usb_core.h> 44 #include <dev/usb/usb_busdma.h> 45 #include <dev/usb/usb_process.h> 46 47 #include <dev/usb/usb_controller.h> 48 #include <dev/usb/usb_bus.h> 49 #include <dev/usb/controller/xhci.h> 50 51 #include <dev/ofw/ofw_bus.h> 52 #include <dev/ofw/ofw_bus_subr.h> 53 54 #include <dev/extres/phy/phy.h> 55 56 #include "generic_xhci.h" 57 58 /* Flags for the OFW compat data table */ 59 #define XHCI_FDT_MATCH 0x01 60 #define XHCI_FDT_32BIT_DMA 0x02 /* Controller needs 32-bit DMA */ 61 62 static struct ofw_compat_data compat_data[] = { 63 {"marvell,armada-380-xhci", XHCI_FDT_MATCH}, 64 {"marvell,armada3700-xhci", XHCI_FDT_MATCH}, 65 {"marvell,armada-8k-xhci", XHCI_FDT_MATCH}, 66 {"generic-xhci", XHCI_FDT_MATCH}, 67 {NULL, 0} 68 }; 69 70 static int 71 generic_xhci_fdt_probe(device_t dev) 72 { 73 74 if (!ofw_bus_status_okay(dev)) 75 return (ENXIO); 76 77 if (!ofw_bus_search_compatible(dev, compat_data)->ocd_data) 78 return (ENXIO); 79 80 device_set_desc(dev, XHCI_HC_DEVSTR); 81 82 return (BUS_PROBE_DEFAULT); 83 } 84 85 static int 86 generic_xhci_fdt_attach(device_t dev) 87 { 88 struct xhci_softc *sc = device_get_softc(dev); 89 phandle_t node; 90 phy_t phy; 91 int flags; 92 93 node = ofw_bus_get_node(dev); 94 if (phy_get_by_ofw_property(dev, node, "usb-phy", &phy) == 0) 95 if (phy_enable(phy) != 0) 96 device_printf(dev, "Cannot enable phy\n"); 97 98 flags = ofw_bus_search_compatible(dev, compat_data)->ocd_data; 99 if ((flags & XHCI_FDT_32BIT_DMA) != 0) 100 sc->sc_quirks |= XHCI_QUIRK_DMA_32B; 101 102 return (generic_xhci_attach(dev)); 103 } 104 105 static int 106 generic_xhci_fdt_detach(device_t dev) 107 { 108 phandle_t node; 109 phy_t phy; 110 int err; 111 112 err = generic_xhci_detach(dev); 113 if (err != 0) 114 return (err); 115 116 node = ofw_bus_get_node(dev); 117 if (phy_get_by_ofw_property(dev, node, "usb-phy", &phy) == 0) 118 phy_release(phy); 119 120 return (0); 121 } 122 123 static device_method_t xhci_fdt_methods[] = { 124 /* Device interface */ 125 DEVMETHOD(device_probe, generic_xhci_fdt_probe), 126 DEVMETHOD(device_attach, generic_xhci_fdt_attach), 127 DEVMETHOD(device_detach, generic_xhci_fdt_detach), 128 129 DEVMETHOD_END 130 }; 131 132 DEFINE_CLASS_1(xhci, xhci_fdt_driver, xhci_fdt_methods, 133 sizeof(struct xhci_softc), generic_xhci_driver); 134 135 DRIVER_MODULE(xhci, simplebus, xhci_fdt_driver, 0, 0); 136 MODULE_DEPEND(xhci, usb, 1, 1, 1); 137