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113 lines
3.4 KiB
C
113 lines
3.4 KiB
C
/* $NetBSD: imx6_usb.c,v 1.1 2014/09/25 05:05:28 ryo Exp $ */
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/*
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* Copyright (c) 2012 Genetec Corporation. All rights reserved.
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* Written by Hashimoto Kenichi for Genetec Corporation.
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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 GENETEC CORPORATION ``AS IS'' AND
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* 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 GENETEC CORPORATION
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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/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: imx6_usb.c,v 1.1 2014/09/25 05:05:28 ryo Exp $");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/conf.h>
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#include <sys/kernel.h>
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#include <sys/device.h>
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#include <sys/intr.h>
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#include <sys/bus.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/imx6_reg.h>
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#include <arm/imx/imx6var.h>
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#include <arm/imx/imx6_ccmreg.h>
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#include <arm/imx/imx6_ccmvar.h>
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#include <arm/imx/imxusbvar.h>
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#include "locators.h"
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static int imxusbc_search(device_t, cfdata_t, const int *, void *);
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static int imxusbc_print(void *, const char *);
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int
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imxusbc_attach_common(device_t parent, device_t self, bus_space_tag_t iot)
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{
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struct imxusbc_softc *sc;
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uint32_t v;
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sc = device_private(self);
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sc->sc_iot = iot;
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/* Map entire USBOH registers. Host controller drivers
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* re-use subregions of this. */
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if (bus_space_map(iot, IMX6_AIPS2_BASE + AIPS2_USBOH_BASE, /* XXX */
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AIPS2_USBOH_SIZE, 0, &sc->sc_ioh))
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return -1;
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/* USBOH3 clock enable */
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v = imx6_ccm_read(CCM_CCGR6);
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imx6_ccm_write(CCM_CCGR6, v | CCM_CCGR6_USBOH3_CLK_ENABLE(3));
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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 0;
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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;
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struct imxusbc_attach_args aa;
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sc = device_private(parent);
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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 = &imx_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, imxusbc_print);
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return 0;
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}
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/* ARGSUSED */
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static int
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imxusbc_print(void *aux, const char *name __unused)
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{
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struct imxusbc_attach_args *iaa;
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iaa = (struct imxusbc_attach_args *)aux;
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aprint_normal(" unit %d intr %d", iaa->aa_unit, iaa->aa_irq);
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return UNCONF;
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}
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