pxa2x0_ohci.c revision 1.1.2.2
1 1.1.2.2 yamt /* $NetBSD: pxa2x0_ohci.c,v 1.1.2.2 2006/12/18 11:42:04 yamt Exp $ */ 2 1.1.2.2 yamt /* $OpenBSD: pxa2x0_ohci.c,v 1.19 2005/04/08 02:32:54 dlg Exp $ */ 3 1.1.2.2 yamt 4 1.1.2.2 yamt /* 5 1.1.2.2 yamt * Copyright (c) 2005 David Gwynne <dlg (at) openbsd.org> 6 1.1.2.2 yamt * 7 1.1.2.2 yamt * Permission to use, copy, modify, and distribute this software for any 8 1.1.2.2 yamt * purpose with or without fee is hereby granted, provided that the above 9 1.1.2.2 yamt * copyright notice and this permission notice appear in all copies. 10 1.1.2.2 yamt * 11 1.1.2.2 yamt * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 12 1.1.2.2 yamt * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 13 1.1.2.2 yamt * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 14 1.1.2.2 yamt * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 15 1.1.2.2 yamt * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 16 1.1.2.2 yamt * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 17 1.1.2.2 yamt * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 18 1.1.2.2 yamt */ 19 1.1.2.2 yamt 20 1.1.2.2 yamt #include <sys/param.h> 21 1.1.2.2 yamt #include <sys/systm.h> 22 1.1.2.2 yamt #include <sys/device.h> 23 1.1.2.2 yamt #include <sys/kernel.h> 24 1.1.2.2 yamt 25 1.1.2.2 yamt #include <machine/intr.h> 26 1.1.2.2 yamt #include <machine/bus.h> 27 1.1.2.2 yamt 28 1.1.2.2 yamt #include <dev/usb/usb.h> 29 1.1.2.2 yamt #include <dev/usb/usbdi.h> 30 1.1.2.2 yamt #include <dev/usb/usbdivar.h> 31 1.1.2.2 yamt #include <dev/usb/usb_mem.h> 32 1.1.2.2 yamt 33 1.1.2.2 yamt #include <dev/usb/ohcireg.h> 34 1.1.2.2 yamt #include <dev/usb/ohcivar.h> 35 1.1.2.2 yamt 36 1.1.2.2 yamt #include <arm/xscale/pxa2x0cpu.h> 37 1.1.2.2 yamt #include <arm/xscale/pxa2x0reg.h> 38 1.1.2.2 yamt #include <arm/xscale/pxa2x0var.h> 39 1.1.2.2 yamt #include <arm/xscale/pxa2x0_gpio.h> 40 1.1.2.2 yamt 41 1.1.2.2 yamt struct pxaohci_softc { 42 1.1.2.2 yamt ohci_softc_t sc; 43 1.1.2.2 yamt 44 1.1.2.2 yamt void *sc_ih; 45 1.1.2.2 yamt }; 46 1.1.2.2 yamt 47 1.1.2.2 yamt static int pxaohci_match(struct device *, struct cfdata *, void *); 48 1.1.2.2 yamt static void pxaohci_attach(struct device *, struct device *, void *); 49 1.1.2.2 yamt static int pxaohci_detach(struct device *, int); 50 1.1.2.2 yamt 51 1.1.2.2 yamt CFATTACH_DECL(pxaohci, sizeof(struct pxaohci_softc), 52 1.1.2.2 yamt pxaohci_match, pxaohci_attach, pxaohci_detach, ohci_activate); 53 1.1.2.2 yamt 54 1.1.2.2 yamt static void pxaohci_power(int, void *); 55 1.1.2.2 yamt static void pxaohci_enable(struct pxaohci_softc *); 56 1.1.2.2 yamt static void pxaohci_disable(struct pxaohci_softc *); 57 1.1.2.2 yamt 58 1.1.2.2 yamt #define HREAD4(sc,r) bus_space_read_4((sc)->sc.iot, (sc)->sc.ioh, (r)) 59 1.1.2.2 yamt #define HWRITE4(sc,r,v) bus_space_write_4((sc)->sc.iot, (sc)->sc.ioh, (r), (v)) 60 1.1.2.2 yamt 61 1.1.2.2 yamt static int 62 1.1.2.2 yamt pxaohci_match(struct device *parent, struct cfdata *cf, void *aux) 63 1.1.2.2 yamt { 64 1.1.2.2 yamt 65 1.1.2.2 yamt if (CPU_IS_PXA270) 66 1.1.2.2 yamt return 1; 67 1.1.2.2 yamt return 0; 68 1.1.2.2 yamt } 69 1.1.2.2 yamt 70 1.1.2.2 yamt static void 71 1.1.2.2 yamt pxaohci_attach(struct device *parent, struct device *self, void *aux) 72 1.1.2.2 yamt { 73 1.1.2.2 yamt struct pxaohci_softc *sc = (struct pxaohci_softc *)self; 74 1.1.2.2 yamt struct pxaip_attach_args *pxa = aux; 75 1.1.2.2 yamt usbd_status r; 76 1.1.2.2 yamt 77 1.1.2.2 yamt { 78 1.1.2.2 yamt extern int ohcidebug; 79 1.1.2.2 yamt ohcidebug = 16; 80 1.1.2.2 yamt } 81 1.1.2.2 yamt 82 1.1.2.2 yamt sc->sc.iot = pxa->pxa_iot; 83 1.1.2.2 yamt sc->sc.sc_bus.dmatag = pxa->pxa_dmat; 84 1.1.2.2 yamt sc->sc.sc_size = 0; 85 1.1.2.2 yamt sc->sc_ih = NULL; 86 1.1.2.2 yamt 87 1.1.2.2 yamt /* Map I/O space */ 88 1.1.2.2 yamt if (bus_space_map(sc->sc.iot, PXA2X0_USBHC_BASE, PXA2X0_USBHC_SIZE, 0, 89 1.1.2.2 yamt &sc->sc.ioh)) { 90 1.1.2.2 yamt aprint_error(": couldn't map memory space\n"); 91 1.1.2.2 yamt return; 92 1.1.2.2 yamt } 93 1.1.2.2 yamt sc->sc.sc_size = PXA2X0_USBHC_SIZE; 94 1.1.2.2 yamt 95 1.1.2.2 yamt /* XXX copied from ohci_pci.c. needed? */ 96 1.1.2.2 yamt bus_space_barrier(sc->sc.iot, sc->sc.ioh, 0, sc->sc.sc_size, 97 1.1.2.2 yamt BUS_SPACE_BARRIER_READ|BUS_SPACE_BARRIER_WRITE); 98 1.1.2.2 yamt 99 1.1.2.2 yamt /* start the usb clock */ 100 1.1.2.2 yamt pxa2x0_clkman_config(CKEN_USBHC, 1); 101 1.1.2.2 yamt pxaohci_enable(sc); 102 1.1.2.2 yamt 103 1.1.2.2 yamt /* Disable interrupts, so we don't get any spurious ones. */ 104 1.1.2.2 yamt bus_space_write_4(sc->sc.iot, sc->sc.ioh, OHCI_INTERRUPT_DISABLE, 105 1.1.2.2 yamt OHCI_MIE); 106 1.1.2.2 yamt 107 1.1.2.2 yamt sc->sc_ih = pxa2x0_intr_establish(PXA2X0_INT_USBH1, IPL_USB, 108 1.1.2.2 yamt ohci_intr, &sc->sc); 109 1.1.2.2 yamt if (sc->sc_ih == NULL) { 110 1.1.2.2 yamt aprint_error(": unable to establish interrupt\n"); 111 1.1.2.2 yamt goto free_map; 112 1.1.2.2 yamt } 113 1.1.2.2 yamt 114 1.1.2.2 yamt strlcpy(sc->sc.sc_vendor, "PXA27x", sizeof(sc->sc.sc_vendor)); 115 1.1.2.2 yamt r = ohci_init(&sc->sc); 116 1.1.2.2 yamt if (r != USBD_NORMAL_COMPLETION) { 117 1.1.2.2 yamt aprint_error("%s: init failed, error=%d\n", 118 1.1.2.2 yamt sc->sc.sc_bus.bdev.dv_xname, r); 119 1.1.2.2 yamt goto free_intr; 120 1.1.2.2 yamt } 121 1.1.2.2 yamt 122 1.1.2.2 yamt sc->sc.sc_powerhook = powerhook_establish(sc->sc.sc_bus.bdev.dv_xname, 123 1.1.2.2 yamt pxaohci_power, sc); 124 1.1.2.2 yamt if (sc->sc.sc_powerhook == NULL) { 125 1.1.2.2 yamt aprint_error("%s: cannot establish powerhook\n", 126 1.1.2.2 yamt sc->sc.sc_bus.bdev.dv_xname); 127 1.1.2.2 yamt } 128 1.1.2.2 yamt 129 1.1.2.2 yamt sc->sc.sc_child = config_found((void *)sc, &sc->sc.sc_bus, usbctlprint); 130 1.1.2.2 yamt 131 1.1.2.2 yamt return; 132 1.1.2.2 yamt 133 1.1.2.2 yamt free_intr: 134 1.1.2.2 yamt pxa2x0_intr_disestablish(sc->sc_ih); 135 1.1.2.2 yamt sc->sc_ih = NULL; 136 1.1.2.2 yamt free_map: 137 1.1.2.2 yamt pxaohci_disable(sc); 138 1.1.2.2 yamt pxa2x0_clkman_config(CKEN_USBHC, 0); 139 1.1.2.2 yamt bus_space_unmap(sc->sc.iot, sc->sc.ioh, sc->sc.sc_size); 140 1.1.2.2 yamt sc->sc.sc_size = 0; 141 1.1.2.2 yamt } 142 1.1.2.2 yamt 143 1.1.2.2 yamt static int 144 1.1.2.2 yamt pxaohci_detach(struct device *self, int flags) 145 1.1.2.2 yamt { 146 1.1.2.2 yamt struct pxaohci_softc *sc = (struct pxaohci_softc *)self; 147 1.1.2.2 yamt int error; 148 1.1.2.2 yamt 149 1.1.2.2 yamt error = ohci_detach(&sc->sc, flags); 150 1.1.2.2 yamt if (error) 151 1.1.2.2 yamt return error; 152 1.1.2.2 yamt 153 1.1.2.2 yamt if (sc->sc.sc_powerhook) { 154 1.1.2.2 yamt powerhook_disestablish(sc->sc.sc_powerhook); 155 1.1.2.2 yamt sc->sc.sc_powerhook = NULL; 156 1.1.2.2 yamt } 157 1.1.2.2 yamt 158 1.1.2.2 yamt if (sc->sc_ih) { 159 1.1.2.2 yamt pxa2x0_intr_disestablish(sc->sc_ih); 160 1.1.2.2 yamt sc->sc_ih = NULL; 161 1.1.2.2 yamt } 162 1.1.2.2 yamt 163 1.1.2.2 yamt pxaohci_disable(sc); 164 1.1.2.2 yamt 165 1.1.2.2 yamt /* stop clock */ 166 1.1.2.2 yamt pxa2x0_clkman_config(CKEN_USBHC, 0); 167 1.1.2.2 yamt 168 1.1.2.2 yamt if (sc->sc.sc_size) { 169 1.1.2.2 yamt bus_space_unmap(sc->sc.iot, sc->sc.ioh, sc->sc.sc_size); 170 1.1.2.2 yamt sc->sc.sc_size = 0; 171 1.1.2.2 yamt } 172 1.1.2.2 yamt 173 1.1.2.2 yamt return 0; 174 1.1.2.2 yamt } 175 1.1.2.2 yamt 176 1.1.2.2 yamt static void 177 1.1.2.2 yamt pxaohci_power(int why, void *arg) 178 1.1.2.2 yamt { 179 1.1.2.2 yamt struct pxaohci_softc *sc = (struct pxaohci_softc *)arg; 180 1.1.2.2 yamt int s; 181 1.1.2.2 yamt 182 1.1.2.2 yamt s = splhardusb(); 183 1.1.2.2 yamt sc->sc.sc_bus.use_polling++; 184 1.1.2.2 yamt switch (why) { 185 1.1.2.2 yamt case PWR_STANDBY: 186 1.1.2.2 yamt case PWR_SUSPEND: 187 1.1.2.2 yamt #if 0 188 1.1.2.2 yamt ohci_power(why, &sc->sc); 189 1.1.2.2 yamt #endif 190 1.1.2.2 yamt pxa2x0_clkman_config(CKEN_USBHC, 0); 191 1.1.2.2 yamt break; 192 1.1.2.2 yamt 193 1.1.2.2 yamt case PWR_RESUME: 194 1.1.2.2 yamt pxa2x0_clkman_config(CKEN_USBHC, 1); 195 1.1.2.2 yamt pxaohci_enable(sc); 196 1.1.2.2 yamt #if 0 197 1.1.2.2 yamt ohci_power(why, &sc->sc); 198 1.1.2.2 yamt #endif 199 1.1.2.2 yamt break; 200 1.1.2.2 yamt } 201 1.1.2.2 yamt sc->sc.sc_bus.use_polling--; 202 1.1.2.2 yamt splx(s); 203 1.1.2.2 yamt } 204 1.1.2.2 yamt 205 1.1.2.2 yamt static void 206 1.1.2.2 yamt pxaohci_enable(struct pxaohci_softc *sc) 207 1.1.2.2 yamt { 208 1.1.2.2 yamt uint32_t hr; 209 1.1.2.2 yamt 210 1.1.2.2 yamt /* Full host reset */ 211 1.1.2.2 yamt hr = HREAD4(sc, USBHC_HR); 212 1.1.2.2 yamt HWRITE4(sc, USBHC_HR, (hr & USBHC_HR_MASK) | USBHC_HR_FHR); 213 1.1.2.2 yamt 214 1.1.2.2 yamt DELAY(USBHC_RST_WAIT); 215 1.1.2.2 yamt 216 1.1.2.2 yamt hr = HREAD4(sc, USBHC_HR); 217 1.1.2.2 yamt HWRITE4(sc, USBHC_HR, (hr & USBHC_HR_MASK) & ~(USBHC_HR_FHR)); 218 1.1.2.2 yamt 219 1.1.2.2 yamt /* Force system bus interface reset */ 220 1.1.2.2 yamt hr = HREAD4(sc, USBHC_HR); 221 1.1.2.2 yamt HWRITE4(sc, USBHC_HR, (hr & USBHC_HR_MASK) | USBHC_HR_FSBIR); 222 1.1.2.2 yamt 223 1.1.2.2 yamt while (HREAD4(sc, USBHC_HR) & USBHC_HR_FSBIR) 224 1.1.2.2 yamt DELAY(3); 225 1.1.2.2 yamt 226 1.1.2.2 yamt /* Enable the ports (physically only one, only enable that one?) */ 227 1.1.2.2 yamt hr = HREAD4(sc, USBHC_HR); 228 1.1.2.2 yamt HWRITE4(sc, USBHC_HR, (hr & USBHC_HR_MASK) & ~(USBHC_HR_SSE)); 229 1.1.2.2 yamt hr = HREAD4(sc, USBHC_HR); 230 1.1.2.2 yamt HWRITE4(sc, USBHC_HR, (hr & USBHC_HR_MASK) & ~(USBHC_HR_SSEP2)); 231 1.1.2.2 yamt } 232 1.1.2.2 yamt 233 1.1.2.2 yamt static void 234 1.1.2.2 yamt pxaohci_disable(struct pxaohci_softc *sc) 235 1.1.2.2 yamt { 236 1.1.2.2 yamt uint32_t hr; 237 1.1.2.2 yamt 238 1.1.2.2 yamt /* Full host reset */ 239 1.1.2.2 yamt hr = HREAD4(sc, USBHC_HR); 240 1.1.2.2 yamt HWRITE4(sc, USBHC_HR, (hr & USBHC_HR_MASK) | USBHC_HR_FHR); 241 1.1.2.2 yamt 242 1.1.2.2 yamt DELAY(USBHC_RST_WAIT); 243 1.1.2.2 yamt 244 1.1.2.2 yamt hr = HREAD4(sc, USBHC_HR); 245 1.1.2.2 yamt HWRITE4(sc, USBHC_HR, (hr & USBHC_HR_MASK) & ~(USBHC_HR_FHR)); 246 1.1.2.2 yamt } 247
Indexes created Wed Oct 22 13:09:56 GMT 2025