1 /* $NetBSD: ingenic_ehci.c,v 1.3 2015/03/17 09:27:09 macallan Exp $ */ 2 3 /*- 4 * Copyright (c) 2015 Michael Lorenz 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 * POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #include <sys/cdefs.h> 30 __KERNEL_RCSID(0, "$NetBSD: ingenic_ehci.c,v 1.3 2015/03/17 09:27:09 macallan Exp $"); 31 32 #include <sys/param.h> 33 #include <sys/systm.h> 34 #include <sys/device.h> 35 #include <sys/mutex.h> 36 #include <sys/bus.h> 37 #include <sys/workqueue.h> 38 39 #include <mips/ingenic/ingenic_var.h> 40 #include <mips/ingenic/ingenic_regs.h> 41 42 #include <dev/usb/usb.h> 43 #include <dev/usb/usbdi.h> 44 #include <dev/usb/usbdivar.h> 45 #include <dev/usb/usb_mem.h> 46 47 #include <dev/usb/ehcireg.h> 48 #include <dev/usb/ehcivar.h> 49 50 #include <dev/usb/usbdevs.h> 51 52 #include "opt_ingenic.h" 53 #include "ohci.h" 54 55 static int ingenic_ehci_match(device_t, struct cfdata *, void *); 56 static void ingenic_ehci_attach(device_t, device_t, void *); 57 58 CFATTACH_DECL_NEW(ingenic_ehci, sizeof(struct ehci_softc), 59 ingenic_ehci_match, ingenic_ehci_attach, NULL, NULL); 60 61 #if NOHCI > 0 62 extern device_t ingenic_ohci; 63 #endif 64 65 /* ARGSUSED */ 66 static int 67 ingenic_ehci_match(device_t parent, struct cfdata *match, void *aux) 68 { 69 struct apbus_attach_args *aa = aux; 70 71 if (strcmp(aa->aa_name, "ehci") != 0) 72 return 0; 73 74 return 1; 75 } 76 77 /* ARGSUSED */ 78 static void 79 ingenic_ehci_attach(device_t parent, device_t self, void *aux) 80 { 81 struct ehci_softc *sc = device_private(self); 82 struct apbus_attach_args *aa = aux; 83 void *ih; 84 int error, status; 85 uint32_t reg; 86 87 sc->sc_dev = self; 88 89 sc->iot = aa->aa_bst; 90 sc->sc_bus.dmatag = aa->aa_dmat; 91 sc->sc_bus.hci_private = sc; 92 sc->sc_size = 0x1000; 93 sc->sc_bus.usbrev = USBREV_2_0; 94 95 if (aa->aa_addr == 0) 96 aa->aa_addr = JZ_EHCI_BASE; 97 98 error = bus_space_map(aa->aa_bst, aa->aa_addr, 0x1000, 0, &sc->ioh); 99 if (error) { 100 aprint_error_dev(self, 101 "can't map registers for %s: %d\n", aa->aa_name, error); 102 return; 103 } 104 105 aprint_naive(": EHCI USB controller\n"); 106 aprint_normal(": EHCI USB controller\n"); 107 108 /* 109 * voodoo from the linux driver: 110 * select utmi data bus width of controller to 16bit 111 */ 112 reg = bus_space_read_4(sc->iot, sc->ioh, 0xb0); 113 reg |= 1 << 6; 114 bus_space_write_4(sc->iot, sc->ioh, 0xb0, reg); 115 116 /* Disable EHCI interrupts */ 117 bus_space_write_4(sc->iot, sc->ioh, EHCI_USBINTR, 0); 118 119 ih = evbmips_intr_establish(aa->aa_irq, ehci_intr, sc); 120 121 if (ih == NULL) { 122 aprint_error_dev(self, "failed to establish interrupt %d\n", 123 aa->aa_irq); 124 goto fail; 125 } 126 127 #if NOHCI > 0 128 if (ingenic_ohci != NULL) { 129 sc->sc_ncomp = 1; 130 sc->sc_comps[0] = ingenic_ohci; 131 } else 132 sc->sc_ncomp = 0; 133 #else 134 sc->sc_ncomp = 0; 135 #endif 136 sc->sc_id_vendor = USB_VENDOR_INGENIC; 137 strlcpy(sc->sc_vendor, "Ingenic", sizeof(sc->sc_vendor)); 138 139 status = ehci_init(sc); 140 if (status != USBD_NORMAL_COMPLETION) { 141 aprint_error_dev(self, "init failed, error=%d\n", status); 142 goto fail; 143 } 144 145 /* Attach USB device */ 146 sc->sc_child = config_found(self, &sc->sc_bus, usbctlprint); 147 148 return; 149 150 fail: 151 if (ih) { 152 evbmips_intr_disestablish(ih); 153 } 154 bus_space_unmap(sc->iot, sc->ioh, 0x1000); 155 } 156