pq3ehci.c revision 1.3.2.2
1 1.3.2.2 rmind /* $NetBSD: pq3ehci.c,v 1.3.2.2 2011/03/05 20:51:34 rmind Exp $ */ 2 1.3.2.2 rmind /*- 3 1.3.2.2 rmind * Copyright (c) 2010, 2011 The NetBSD Foundation, Inc. 4 1.3.2.2 rmind * All rights reserved. 5 1.3.2.2 rmind * 6 1.3.2.2 rmind * This code is derived from software contributed to The NetBSD Foundation 7 1.3.2.2 rmind * by Matt Thomas of 3am Software Foundry. 8 1.3.2.2 rmind * 9 1.3.2.2 rmind * Redistribution and use in source and binary forms, with or without 10 1.3.2.2 rmind * modification, are permitted provided that the following conditions 11 1.3.2.2 rmind * are met: 12 1.3.2.2 rmind * 1. Redistributions of source code must retain the above copyright 13 1.3.2.2 rmind * notice, this list of conditions and the following disclaimer. 14 1.3.2.2 rmind * 2. Redistributions in binary form must reproduce the above copyright 15 1.3.2.2 rmind * notice, this list of conditions and the following disclaimer in the 16 1.3.2.2 rmind * documentation and/or other materials provided with the distribution. 17 1.3.2.2 rmind * 18 1.3.2.2 rmind * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 19 1.3.2.2 rmind * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 20 1.3.2.2 rmind * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 21 1.3.2.2 rmind * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 22 1.3.2.2 rmind * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 23 1.3.2.2 rmind * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 24 1.3.2.2 rmind * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 25 1.3.2.2 rmind * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 26 1.3.2.2 rmind * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 27 1.3.2.2 rmind * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 28 1.3.2.2 rmind * POSSIBILITY OF SUCH DAMAGE. 29 1.3.2.2 rmind */ 30 1.3.2.2 rmind 31 1.3.2.2 rmind #include <sys/cdefs.h> 32 1.3.2.2 rmind __KERNEL_RCSID(0, "$NetBSD: pq3ehci.c,v 1.3.2.2 2011/03/05 20:51:34 rmind Exp $"); 33 1.3.2.2 rmind 34 1.3.2.2 rmind #include <sys/param.h> 35 1.3.2.2 rmind #include <sys/systm.h> 36 1.3.2.2 rmind #include <sys/device.h> 37 1.3.2.2 rmind #include <sys/kernel.h> 38 1.3.2.2 rmind #include <sys/proc.h> 39 1.3.2.2 rmind #include <sys/queue.h> 40 1.3.2.2 rmind 41 1.3.2.2 rmind #include <sys/bus.h> 42 1.3.2.2 rmind 43 1.3.2.2 rmind #include <powerpc/booke/cpuvar.h> 44 1.3.2.2 rmind #include <powerpc/booke/e500var.h> 45 1.3.2.2 rmind #include <powerpc/booke/e500reg.h> 46 1.3.2.2 rmind 47 1.3.2.2 rmind #include <dev/usb/usb.h> 48 1.3.2.2 rmind #include <dev/usb/usbdi.h> 49 1.3.2.2 rmind #include <dev/usb/usbdivar.h> 50 1.3.2.2 rmind #include <dev/usb/usb_mem.h> 51 1.3.2.2 rmind 52 1.3.2.2 rmind #include <dev/usb/ehcireg.h> 53 1.3.2.2 rmind #include <dev/usb/ehcivar.h> 54 1.3.2.2 rmind 55 1.3.2.2 rmind #ifdef EHCI_DEBUG 56 1.3.2.2 rmind #define DPRINTF(x) if (ehcidebug) printf x 57 1.3.2.2 rmind extern int ehcidebug; 58 1.3.2.2 rmind #else 59 1.3.2.2 rmind #define DPRINTF(x) 60 1.3.2.2 rmind #endif 61 1.3.2.2 rmind 62 1.3.2.2 rmind static int pq3ehci_match(device_t, cfdata_t, void *); 63 1.3.2.2 rmind static void pq3ehci_attach(device_t, device_t, void *); 64 1.3.2.2 rmind 65 1.3.2.2 rmind struct pq3ehci_softc { 66 1.3.2.2 rmind ehci_softc_t sc; 67 1.3.2.2 rmind void *sc_ih; /* interrupt vectoring */ 68 1.3.2.2 rmind }; 69 1.3.2.2 rmind 70 1.3.2.2 rmind CFATTACH_DECL_NEW(pq3ehci, sizeof(struct pq3ehci_softc), 71 1.3.2.2 rmind pq3ehci_match, pq3ehci_attach, NULL, NULL); 72 1.3.2.2 rmind 73 1.3.2.2 rmind static int 74 1.3.2.2 rmind pq3ehci_match(device_t parent, cfdata_t cf, void *aux) 75 1.3.2.2 rmind { 76 1.3.2.2 rmind 77 1.3.2.2 rmind if (!e500_cpunode_submatch(parent, cf, cf->cf_name, aux)) 78 1.3.2.2 rmind return 0; 79 1.3.2.2 rmind 80 1.3.2.2 rmind return 1; 81 1.3.2.2 rmind } 82 1.3.2.2 rmind 83 1.3.2.2 rmind static void 84 1.3.2.2 rmind pq3ehci_attach(device_t parent, device_t self, void *aux) 85 1.3.2.2 rmind { 86 1.3.2.2 rmind struct cpunode_softc * const psc = device_private(parent); 87 1.3.2.2 rmind struct pq3ehci_softc * const sc = device_private(self); 88 1.3.2.2 rmind struct cpunode_attach_args * const cna = aux; 89 1.3.2.2 rmind struct cpunode_locators * const cnl = &cna->cna_locs; 90 1.3.2.2 rmind int error; 91 1.3.2.2 rmind 92 1.3.2.2 rmind psc->sc_children |= cna->cna_childmask; 93 1.3.2.2 rmind sc->sc.iot = cna->cna_le_memt; /* EHCI registers are little endian */ 94 1.3.2.2 rmind sc->sc.sc_dev = self; 95 1.3.2.2 rmind sc->sc.sc_bus.dmatag = cna->cna_dmat; 96 1.3.2.2 rmind sc->sc.sc_bus.hci_private = sc; 97 1.3.2.2 rmind sc->sc.sc_bus.usbrev = USBREV_2_0; 98 1.3.2.2 rmind sc->sc.sc_ncomp = 0; 99 1.3.2.2 rmind sc->sc.sc_flags |= EHCIF_ETTF; 100 1.3.2.2 rmind 101 1.3.2.2 rmind aprint_naive(": USB controller\n"); 102 1.3.2.2 rmind aprint_normal(": USB controller\n"); 103 1.3.2.2 rmind 104 1.3.2.2 rmind error = bus_space_map(sc->sc.iot, cnl->cnl_addr, cnl->cnl_size, 0, 105 1.3.2.2 rmind &sc->sc.ioh); 106 1.3.2.2 rmind if (error) { 107 1.3.2.2 rmind aprint_error_dev(self, 108 1.3.2.2 rmind "can't map registers for %s#%u: %d\n", 109 1.3.2.2 rmind cnl->cnl_name, cnl->cnl_instance, error); 110 1.3.2.2 rmind return; 111 1.3.2.2 rmind } 112 1.3.2.2 rmind sc->sc.sc_size = cnl->cnl_size; 113 1.3.2.2 rmind 114 1.3.2.2 rmind /* 115 1.3.2.2 rmind * We need to tell the USB interface to snoop all off RAM starting 116 1.3.2.2 rmind * at 0. Since it can do it by powers of 2, get the highest RAM 117 1.3.2.2 rmind * address and roughly round it to the next power of 2 and find 118 1.3.2.2 rmind * the number of leading zero bits. 119 1.3.2.2 rmind */ 120 1.3.2.2 rmind cpu_write_4(cnl->cnl_addr + USB_SNOOP1, 121 1.3.2.2 rmind SNOOP_2GB - __builtin_clz(curcpu()->ci_softc->cpu_highmem * 2 - 1)); 122 1.3.2.2 rmind 123 1.3.2.2 rmind sc->sc_ih = intr_establish(cnl->cnl_intrs[0], IPL_USB, IST_ONCHIP, 124 1.3.2.2 rmind ehci_intr, sc); 125 1.3.2.2 rmind if (sc->sc_ih == NULL) { 126 1.3.2.2 rmind aprint_error_dev(self, "failed to establish interrupt %d\n", 127 1.3.2.2 rmind cnl->cnl_intrs[0]); 128 1.3.2.2 rmind goto fail; 129 1.3.2.2 rmind } 130 1.3.2.2 rmind aprint_normal_dev(self, "interrupting on irq %d\n", 131 1.3.2.2 rmind cnl->cnl_intrs[0]); 132 1.3.2.2 rmind 133 1.3.2.2 rmind /* offs is needed for EOWRITEx */ 134 1.3.2.2 rmind sc->sc.sc_offs = EREAD1(&sc->sc, EHCI_CAPLENGTH); 135 1.3.2.2 rmind 136 1.3.2.2 rmind /* Disable interrupts, so we don't get any spurious ones. */ 137 1.3.2.2 rmind DPRINTF(("%s: offs=%d\n", device_xname(self), sc->sc.sc_offs)); 138 1.3.2.2 rmind EOWRITE2(&sc->sc, EHCI_USBINTR, 0); 139 1.3.2.2 rmind 140 1.3.2.2 rmind error = ehci_init(&sc->sc); 141 1.3.2.2 rmind if (error != USBD_NORMAL_COMPLETION) { 142 1.3.2.2 rmind aprint_error_dev(self, "init failed, error=%d\n", error); 143 1.3.2.2 rmind goto fail; 144 1.3.2.2 rmind } 145 1.3.2.2 rmind 146 1.3.2.2 rmind /* Attach usb device. */ 147 1.3.2.2 rmind sc->sc.sc_child = config_found(self, &sc->sc.sc_bus, usbctlprint); 148 1.3.2.2 rmind return; 149 1.3.2.2 rmind 150 1.3.2.2 rmind fail: 151 1.3.2.2 rmind if (sc->sc_ih) { 152 1.3.2.2 rmind intr_disestablish(sc->sc_ih); 153 1.3.2.2 rmind sc->sc_ih = NULL; 154 1.3.2.2 rmind } 155 1.3.2.2 rmind if (sc->sc.sc_size) { 156 1.3.2.2 rmind bus_space_unmap(sc->sc.iot, sc->sc.ioh, sc->sc.sc_size); 157 1.3.2.2 rmind sc->sc.sc_size = 0; 158 1.3.2.2 rmind } 159 1.3.2.2 rmind return; 160 1.3.2.2 rmind } 161
Indexes created Tue Oct 07 21:09:53 GMT 2025