1 /* $OpenBSD: octohci.c,v 1.4 2019/01/07 03:41:06 dlg Exp $ */ 2 3 /* 4 * Copyright (c) 2015 Jonathan Matthew <jmatthew@openbsd.org> 5 * 6 * Permission to use, copy, modify, and/or distribute this software for any 7 * purpose with or without fee is hereby granted, provided that the above 8 * copyright notice and this permission notice appear in all copies. 9 * 10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 17 */ 18 19 #include <sys/param.h> 20 #include <sys/systm.h> 21 #include <sys/device.h> 22 23 #include <machine/intr.h> 24 #include <machine/bus.h> 25 #include <machine/octeonreg.h> 26 #include <machine/octeonvar.h> 27 28 #include <octeon/dev/octuctlreg.h> 29 #include <octeon/dev/octuctlvar.h> 30 31 #include <dev/usb/usb.h> 32 #include <dev/usb/usbdi.h> 33 #include <dev/usb/usbdivar.h> 34 35 #include <dev/usb/ohcireg.h> 36 #include <dev/usb/ohcivar.h> 37 38 struct octohci_softc { 39 struct ohci_softc sc_ohci; 40 41 void *sc_ih; 42 uint64_t sc_reg_size; 43 }; 44 45 int octohci_match(struct device *, void *, void *); 46 void octohci_attach(struct device *, struct device *, void *); 47 void octohci_attach_deferred(struct device *); 48 49 const struct cfattach octohci_ca = { 50 sizeof(struct octohci_softc), octohci_match, octohci_attach, 51 }; 52 53 struct cfdriver octohci_cd = { 54 NULL, "ohci", DV_DULL 55 }; 56 57 int 58 octohci_match(struct device *parent, void *match, void *aux) 59 { 60 struct octuctl_attach_args *aa = aux; 61 return (OF_is_compatible(aa->aa_node, "cavium,octeon-6335-ohci")); 62 } 63 64 void 65 octohci_attach(struct device *parent, struct device *self, void *aux) 66 { 67 struct octohci_softc *sc = (struct octohci_softc *)self; 68 struct octuctl_attach_args *aa = aux; 69 uint64_t port_ctl; 70 int rc; 71 int s; 72 73 sc->sc_ohci.iot = aa->aa_bust; 74 sc->sc_ohci.sc_bus.pipe_size = sizeof(struct usbd_pipe); 75 sc->sc_ohci.sc_bus.dmatag = aa->aa_dmat; 76 77 rc = bus_space_map(sc->sc_ohci.iot, aa->aa_reg.addr, aa->aa_reg.size, 78 0, &sc->sc_ohci.ioh); 79 KASSERT(rc == 0); 80 sc->sc_reg_size = aa->aa_reg.size; 81 82 port_ctl = bus_space_read_8(aa->aa_octuctl_bust, aa->aa_ioh, 83 UCTL_OHCI_CTL); 84 port_ctl &= ~UCTL_OHCI_CTL_L2C_ADDR_MSB_MASK; 85 port_ctl |= (1 << UCTL_OHCI_CTL_L2C_DESC_EMOD_SHIFT); 86 port_ctl |= (1 << UCTL_OHCI_CTL_L2C_BUFF_EMOD_SHIFT); 87 bus_space_write_8(aa->aa_octuctl_bust, aa->aa_ioh, UCTL_OHCI_CTL, 88 port_ctl); 89 90 s = splusb(); 91 92 sc->sc_ohci.sc_id_vendor = 0; 93 strlcpy(sc->sc_ohci.sc_vendor, "Octeon", sizeof(sc->sc_ohci.sc_vendor)); 94 95 sc->sc_ih = octeon_intr_establish(CIU_INT_USB, IPL_USB, ohci_intr, 96 (void *)&sc->sc_ohci, sc->sc_ohci.sc_bus.bdev.dv_xname); 97 KASSERT(sc->sc_ih != NULL); 98 99 printf(", "); 100 101 if ((ohci_checkrev(&sc->sc_ohci) != USBD_NORMAL_COMPLETION) || 102 (ohci_handover(&sc->sc_ohci) != USBD_NORMAL_COMPLETION)) 103 goto failed; 104 105 /* ignore interrupts for now */ 106 sc->sc_ohci.sc_bus.dying = 1; 107 config_defer(self, octohci_attach_deferred); 108 109 splx(s); 110 return; 111 112 failed: 113 octeon_intr_disestablish(sc->sc_ih); 114 bus_space_unmap(sc->sc_ohci.iot, sc->sc_ohci.ioh, sc->sc_reg_size); 115 splx(s); 116 return; 117 } 118 119 void 120 octohci_attach_deferred(struct device *self) 121 { 122 struct octohci_softc *sc = (struct octohci_softc *)self; 123 usbd_status r; 124 int s; 125 126 s = splusb(); 127 sc->sc_ohci.sc_bus.dying = 0; 128 129 r = ohci_init(&sc->sc_ohci); 130 splx(s); 131 132 if (r != USBD_NORMAL_COMPLETION) { 133 printf("%s: init failed, error=%d\n", 134 sc->sc_ohci.sc_bus.bdev.dv_xname, r); 135 octeon_intr_disestablish(sc->sc_ih); 136 bus_space_unmap(sc->sc_ohci.iot, sc->sc_ohci.ioh, 137 sc->sc_reg_size); 138 } else { 139 config_found(self, &sc->sc_ohci.sc_bus, usbctlprint); 140 } 141 } 142