103 lines
3.2 KiB
C
103 lines
3.2 KiB
C
/* $NetBSD: rockchip_dwcmmc.c,v 1.5 2015/01/03 13:29:02 jmcneill Exp $ */
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/*-
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* Copyright (c) 2014 Jared D. McNeill <jmcneill@invisible.ca>
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* All rights reserved.
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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 AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: rockchip_dwcmmc.c,v 1.5 2015/01/03 13:29:02 jmcneill Exp $");
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#include <sys/param.h>
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#include <sys/bus.h>
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#include <sys/device.h>
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#include <sys/intr.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/mutex.h>
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#include <sys/condvar.h>
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#include <arm/rockchip/rockchip_reg.h>
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#include <arm/rockchip/rockchip_var.h>
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#include <dev/ic/dwc_mmc_var.h>
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static int rk_dwcmmc_match(device_t, cfdata_t, void *);
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static void rk_dwcmmc_attach(device_t, device_t, void *);
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static void rk_dwcmmc_attach_i(device_t);
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CFATTACH_DECL_NEW(rkdwcmmc, sizeof(struct dwc_mmc_softc),
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rk_dwcmmc_match, rk_dwcmmc_attach, NULL, NULL);
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static int
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rk_dwcmmc_match(device_t parent, cfdata_t cf, void *aux)
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{
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return 1;
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}
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static void
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rk_dwcmmc_attach(device_t parent, device_t self, void *aux)
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{
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struct dwc_mmc_softc *sc = device_private(self);
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struct obio_attach_args * const obio = aux;
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rockchip_mmc0_set_div(1);
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sc->sc_dev = self;
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sc->sc_bst = obio->obio_bst;
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sc->sc_dmat = obio->obio_dmat;
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sc->sc_flags = DWC_MMC_F_USE_HOLD_REG | DWC_MMC_F_PWREN_CLEAR |
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DWC_MMC_F_FORCE_CLK;
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sc->sc_clock_freq = rockchip_mmc0_get_rate();
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#if 0
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sc->sc_clock_max = 24000;
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#endif
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sc->sc_fifo_depth = 32;
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bus_space_subregion(obio->obio_bst, obio->obio_bsh, obio->obio_offset,
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obio->obio_size, &sc->sc_bsh);
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aprint_naive("\n");
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aprint_normal(": SD/MMC controller\n");
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sc->sc_ih = intr_establish(obio->obio_intr, IPL_BIO, IST_LEVEL,
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dwc_mmc_intr, sc);
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if (sc->sc_ih == NULL) {
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aprint_error_dev(self, "couldn't establish interrupt %d\n",
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obio->obio_intr);
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return;
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}
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config_interrupts(self, rk_dwcmmc_attach_i);
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}
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static void
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rk_dwcmmc_attach_i(device_t self)
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{
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struct dwc_mmc_softc *sc = device_private(self);
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dwc_mmc_init(sc);
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}
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