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155 lines
4.2 KiB
C
155 lines
4.2 KiB
C
/* $Id: imx23_usb.c,v 1.1 2013/10/07 17:36:40 matt Exp $ */
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/*
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* Copyright (c) 2013 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Petri Laakso.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/param.h>
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#include <sys/types.h>
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#include <sys/bus.h>
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#include <sys/errno.h>
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#include <arm/pic/picvar.h>
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#include <dev/usb/usb.h>
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#include <dev/usb/usbdi.h>
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#include <dev/usb/usbdivar.h>
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#include <dev/usb/usb_mem.h>
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#include <dev/usb/ehcireg.h>
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#include <dev/usb/ehcivar.h>
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#include <arm/imx/imxusbvar.h>
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#include <arm/mainbus/mainbus.h>
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#include <arm/imx/imx23_clkctrlvar.h>
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#include <arm/imx/imx23_digctlvar.h>
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#include <arm/imx/imx23_pinctrlvar.h>
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#include <arm/imx/imx23var.h>
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#include "locators.h"
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struct imx23_usb_softc {
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struct imxusbc_softc sc_imxusbc;
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};
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static int imx23_usb_match(device_t, cfdata_t, void *);
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static void imx23_usb_attach(device_t, device_t, void *);
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static int imx23_usb_activate(device_t, enum devact);
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static int imxusbc_search(device_t, cfdata_t, const int *, void *);
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static void imx23_usb_init(struct imxehci_softc *);
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CFATTACH_DECL3_NEW(imxusbc,
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sizeof(struct imx23_usb_softc),
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imx23_usb_match,
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imx23_usb_attach,
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NULL,
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imx23_usb_activate,
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NULL,
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NULL,
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0
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);
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#define AHB_USB 0x80080000
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#define AHB_USB_SIZE 0x40000
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static int
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imx23_usb_match(device_t parent, cfdata_t match, void *aux)
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{
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struct ahb_attach_args *aa = aux;
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if ((aa->aa_addr == AHB_USB) && (aa->aa_size == AHB_USB_SIZE))
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return 1;
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return 0;
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}
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static void
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imx23_usb_attach(device_t parent, device_t self, void *aux)
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{
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struct imxusbc_softc *sc = device_private(self);
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sc->sc_init_md_hook = imx23_usb_init;
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sc->sc_setup_md_hook = NULL;
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sc->sc_iot = &imx23_bus_space;
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if (bus_space_map(sc->sc_iot, AHB_USB, AHB_USB_SIZE, 0, &sc->sc_ioh)) {
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aprint_error_dev(sc->sc_dev, "Unable to map bus space");
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return;
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}
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/* Enable PLL outputs for USB PHY. */
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clkctrl_en_usb();
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/* Enable external USB chip. */
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pinctrl_en_usb();
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/* USB clock on. */
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digctl_usb_clkgate(0);
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aprint_normal("\n");
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/* attach OTG/EHCI host controllers */
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config_search_ia(imxusbc_search, self, "imxusbc", NULL);
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return;
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}
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static int
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imx23_usb_activate(device_t self, enum devact act)
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{
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return EOPNOTSUPP;
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}
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static int
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imxusbc_search(device_t parent, cfdata_t cf, const int *ldesc, void *aux)
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{
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struct imxusbc_softc *sc = device_private(parent);
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struct imxusbc_attach_args aa;
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aa.aa_iot = sc->sc_iot;
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aa.aa_ioh = sc->sc_ioh;
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aa.aa_dmat = &imx23_bus_dma_tag;
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aa.aa_unit = cf->cf_loc[IMXUSBCCF_UNIT];
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aa.aa_irq = cf->cf_loc[IMXUSBCCF_IRQ];
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if (config_match(parent, cf, &aa) > 0)
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config_attach(parent, cf, &aa, NULL);
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return 0;
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}
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static
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void imx23_usb_init(struct imxehci_softc *sc)
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{
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sc->sc_iftype = IMXUSBC_IF_UTMI;
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return;
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}
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