pxa2x0_udc.c revision 1.1.2.2
1 1.1.2.2 yamt /* $NetBSD: pxa2x0_udc.c,v 1.1.2.2 2006/12/18 11:42:04 yamt Exp $ */ 2 1.1.2.2 yamt /* $OpenBSD: pxa27x_udc.c,v 1.5 2005/03/30 14:24:39 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 <arm/xscale/pxa2x0cpu.h> 29 1.1.2.2 yamt #include <arm/xscale/pxa2x0reg.h> 30 1.1.2.2 yamt #include <arm/xscale/pxa2x0var.h> 31 1.1.2.2 yamt #include <arm/xscale/pxa2x0_gpio.h> 32 1.1.2.2 yamt 33 1.1.2.2 yamt struct pxaudc_softc { 34 1.1.2.2 yamt struct device sc_dev; 35 1.1.2.2 yamt bus_space_tag_t sc_iot; 36 1.1.2.2 yamt bus_space_handle_t sc_ioh; 37 1.1.2.2 yamt bus_size_t sc_size; 38 1.1.2.2 yamt 39 1.1.2.2 yamt void *sc_powerhook; 40 1.1.2.2 yamt }; 41 1.1.2.2 yamt 42 1.1.2.2 yamt static int pxaudc_match(struct device *, struct cfdata *, void *); 43 1.1.2.2 yamt static void pxaudc_attach(struct device *, struct device *, void *); 44 1.1.2.2 yamt static int pxaudc_detach(struct device *, int); 45 1.1.2.2 yamt 46 1.1.2.2 yamt CFATTACH_DECL(pxaudc, sizeof(struct pxaudc_softc), 47 1.1.2.2 yamt pxaudc_match, pxaudc_attach, pxaudc_detach, NULL); 48 1.1.2.2 yamt 49 1.1.2.2 yamt static void pxaudc_power(int, void *); 50 1.1.2.2 yamt static void pxaudc_enable(struct pxaudc_softc *); 51 1.1.2.2 yamt 52 1.1.2.2 yamt static int 53 1.1.2.2 yamt pxaudc_match(struct device *parent, struct cfdata *cf, void *aux) 54 1.1.2.2 yamt { 55 1.1.2.2 yamt 56 1.1.2.2 yamt if (CPU_IS_PXA270) 57 1.1.2.2 yamt return 1; 58 1.1.2.2 yamt return 0; 59 1.1.2.2 yamt } 60 1.1.2.2 yamt 61 1.1.2.2 yamt static void 62 1.1.2.2 yamt pxaudc_attach(struct device *parent, struct device *self, void *aux) 63 1.1.2.2 yamt { 64 1.1.2.2 yamt struct pxaudc_softc *sc = (struct pxaudc_softc *)self; 65 1.1.2.2 yamt struct pxaip_attach_args *pxa = (struct pxaip_attach_args *)aux; 66 1.1.2.2 yamt 67 1.1.2.2 yamt sc->sc_iot = pxa->pxa_iot; 68 1.1.2.2 yamt sc->sc_size = 0; 69 1.1.2.2 yamt sc->sc_powerhook = NULL; 70 1.1.2.2 yamt 71 1.1.2.2 yamt if (bus_space_map(sc->sc_iot, PXA2X0_USBDC_BASE, PXA2X0_USBDC_SIZE, 0, 72 1.1.2.2 yamt &sc->sc_ioh)) { 73 1.1.2.2 yamt aprint_error(": couldn't map memory space\n"); 74 1.1.2.2 yamt return; 75 1.1.2.2 yamt } 76 1.1.2.2 yamt sc->sc_size = PXA2X0_USBDC_SIZE; 77 1.1.2.2 yamt 78 1.1.2.2 yamt printf(": PXA2x0 USB Device Controller\n"); 79 1.1.2.2 yamt 80 1.1.2.2 yamt bus_space_barrier(sc->sc_iot, sc->sc_ioh, 0, sc->sc_size, 81 1.1.2.2 yamt BUS_SPACE_BARRIER_READ|BUS_SPACE_BARRIER_WRITE); 82 1.1.2.2 yamt 83 1.1.2.2 yamt pxa2x0_gpio_set_function(35, GPIO_ALT_FN_2_IN); /* USB_P2_1 */ 84 1.1.2.2 yamt pxa2x0_gpio_set_function(37, GPIO_ALT_FN_1_OUT); /* USB_P2_8 */ 85 1.1.2.2 yamt pxa2x0_gpio_set_function(41, GPIO_ALT_FN_2_IN); /* USB_P2_7 */ 86 1.1.2.2 yamt pxa2x0_gpio_set_function(89, GPIO_ALT_FN_2_OUT); /* USBHPEN<1> */ 87 1.1.2.2 yamt pxa2x0_gpio_set_function(120, GPIO_ALT_FN_2_OUT); /* USBHPEN<2> */ 88 1.1.2.2 yamt 89 1.1.2.2 yamt pxa2x0_clkman_config(CKEN_USBDC, 1); 90 1.1.2.2 yamt 91 1.1.2.2 yamt pxaudc_enable(sc); 92 1.1.2.2 yamt 93 1.1.2.2 yamt pxa2x0_gpio_set_bit(37); /* USB_P2_8 */ 94 1.1.2.2 yamt 95 1.1.2.2 yamt sc->sc_powerhook = powerhook_establish(sc->sc_dev.dv_xname, 96 1.1.2.2 yamt pxaudc_power, sc); 97 1.1.2.2 yamt if (sc->sc_powerhook == NULL) { 98 1.1.2.2 yamt aprint_error("%s: unable to establish powerhook.\n", 99 1.1.2.2 yamt sc->sc_dev.dv_xname); 100 1.1.2.2 yamt } 101 1.1.2.2 yamt } 102 1.1.2.2 yamt 103 1.1.2.2 yamt static int 104 1.1.2.2 yamt pxaudc_detach(struct device *self, int flags) 105 1.1.2.2 yamt { 106 1.1.2.2 yamt struct pxaudc_softc *sc = (struct pxaudc_softc *)self; 107 1.1.2.2 yamt 108 1.1.2.2 yamt if (sc->sc_powerhook) 109 1.1.2.2 yamt powerhook_disestablish(sc->sc_powerhook); 110 1.1.2.2 yamt 111 1.1.2.2 yamt if (sc->sc_size) { 112 1.1.2.2 yamt bus_space_unmap(sc->sc_iot, sc->sc_ioh, sc->sc_size); 113 1.1.2.2 yamt sc->sc_size = 0; 114 1.1.2.2 yamt } 115 1.1.2.2 yamt 116 1.1.2.2 yamt return 0; 117 1.1.2.2 yamt } 118 1.1.2.2 yamt 119 1.1.2.2 yamt static void 120 1.1.2.2 yamt pxaudc_power(int why, void *arg) 121 1.1.2.2 yamt { 122 1.1.2.2 yamt struct pxaudc_softc *sc = (struct pxaudc_softc *)arg; 123 1.1.2.2 yamt 124 1.1.2.2 yamt switch (why) { 125 1.1.2.2 yamt case PWR_RESUME: 126 1.1.2.2 yamt pxaudc_enable(sc); 127 1.1.2.2 yamt break; 128 1.1.2.2 yamt } 129 1.1.2.2 yamt } 130 1.1.2.2 yamt 131 1.1.2.2 yamt static void 132 1.1.2.2 yamt pxaudc_enable(struct pxaudc_softc *sc) 133 1.1.2.2 yamt { 134 1.1.2.2 yamt uint32_t hr; 135 1.1.2.2 yamt 136 1.1.2.2 yamt /* disable the controller */ 137 1.1.2.2 yamt hr = bus_space_read_4(sc->sc_iot, sc->sc_ioh, USBDC_UDCCR); 138 1.1.2.2 yamt bus_space_write_4(sc->sc_iot, sc->sc_ioh, USBDC_UDCCR, 139 1.1.2.2 yamt hr & ~USBDC_UDCCR_UDE); 140 1.1.2.2 yamt 141 1.1.2.2 yamt hr = bus_space_read_4(sc->sc_iot, sc->sc_ioh, USBDC_UDCICR1); 142 1.1.2.2 yamt bus_space_write_4(sc->sc_iot, sc->sc_ioh, USBDC_UDCICR1, 143 1.1.2.2 yamt hr | USBDC_UDCICR1_IERS); 144 1.1.2.2 yamt 145 1.1.2.2 yamt bus_space_write_4(sc->sc_iot, sc->sc_ioh, USBDC_UP2OCR, 0); 146 1.1.2.2 yamt hr = bus_space_read_4(sc->sc_iot, sc->sc_ioh, USBDC_UP2OCR); 147 1.1.2.2 yamt bus_space_write_4(sc->sc_iot, sc->sc_ioh, USBDC_UP2OCR, 148 1.1.2.2 yamt hr | USBDC_UP2OCR_HXS); 149 1.1.2.2 yamt hr = bus_space_read_4(sc->sc_iot, sc->sc_ioh, USBDC_UP2OCR); 150 1.1.2.2 yamt bus_space_write_4(sc->sc_iot, sc->sc_ioh, USBDC_UP2OCR, 151 1.1.2.2 yamt hr | USBDC_UP2OCR_HXOE); 152 1.1.2.2 yamt hr = bus_space_read_4(sc->sc_iot, sc->sc_ioh, USBDC_UP2OCR); 153 1.1.2.2 yamt bus_space_write_4(sc->sc_iot, sc->sc_ioh, USBDC_UP2OCR, 154 1.1.2.2 yamt hr | USBDC_UP2OCR_DPPDE|USBDC_UP2OCR_DMPDE); 155 1.1.2.2 yamt } 156
Indexes created Wed Oct 15 16:09:53 GMT 2025