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126 lines
3.9 KiB
C
126 lines
3.9 KiB
C
/*-
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* Copyright (c) 2012 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 Matt Thomas of 3am Software Foundry.
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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 "locators.h"
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#include <sys/cdefs.h>
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__KERNEL_RCSID(1, "$NetBSD: bcm53xx_sdhc.c,v 1.1 2012/09/01 00:04:44 matt Exp $");
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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 <arm/broadcom/bcm53xx_reg.h>
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#include <arm/broadcom/bcm53xx_var.h>
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#include <dev/sdmmc/sdhcreg.h>
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#include <dev/sdmmc/sdhcvar.h>
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static int sdhc_ccb_match(device_t, cfdata_t, void *);
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static void sdhc_ccb_attach(device_t, device_t, void *);
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struct sdhc_ccb_softc {
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struct sdhc_softc ccbsc_sc;
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bus_space_tag_t ccbsc_bst;
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bus_space_handle_t ccbsc_bsh;
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struct sdhc_host *ccbsc_hosts[1];
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void *ccbsc_ih;
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};
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CFATTACH_DECL_NEW(sdhc_ccb, sizeof(struct sdhc_ccb_softc),
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sdhc_ccb_match, sdhc_ccb_attach, NULL, NULL);
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static int
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sdhc_ccb_match(device_t parent, cfdata_t cf, void *aux)
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{
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struct bcmccb_attach_args * const ccbaa = aux;
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const struct bcm_locators * const loc = &ccbaa->ccbaa_loc;
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if (strcmp(cf->cf_name, loc->loc_name))
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return 0;
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KASSERT(cf->cf_loc[BCMCCBCF_PORT] == BCMCCBCF_PORT_DEFAULT);
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return 1;
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}
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static void
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sdhc_ccb_attach(device_t parent, device_t self, void *aux)
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{
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struct sdhc_ccb_softc * const ccbsc = device_private(self);
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struct sdhc_softc * const sc = &ccbsc->ccbsc_sc;
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struct bcmccb_attach_args * const ccbaa = aux;
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const struct bcm_locators * const loc = &ccbaa->ccbaa_loc;
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ccbsc->ccbsc_bst = ccbaa->ccbaa_ccb_bst;
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bus_space_subregion(ccbsc->ccbsc_bst, ccbaa->ccbaa_ccb_bsh,
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loc->loc_offset, loc->loc_size, &ccbsc->ccbsc_bsh);
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sc->sc_dev = self;
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sc->sc_dmat = ccbaa->ccbaa_dmat;
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sc->sc_host = ccbsc->ccbsc_hosts;
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sc->sc_flags |= SDHC_FLAG_32BIT_ACCESS;
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sc->sc_flags |= SDHC_FLAG_HAVE_CGM;
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//sc->sc_flags |= SDHC_FLAG_USE_DMA;
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aprint_naive(": SDHC controller\n");
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aprint_normal(": SDHC controller%s\n",
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(sc->sc_flags & SDHC_FLAG_USE_DMA) ? " (DMA enabled)" : "");
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#if 1
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int error = sdhc_host_found(sc, ccbsc->ccbsc_bst, ccbsc->ccbsc_bsh,
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loc->loc_size);
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if (error != 0) {
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aprint_error_dev(self, "couldn't initialize host, error=%d\n",
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error);
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goto fail;
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}
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#endif
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ccbsc->ccbsc_ih = intr_establish(loc->loc_intrs[0], IPL_VM, IST_LEVEL,
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sdhc_intr, sc);
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if (ccbsc->ccbsc_ih == NULL) {
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aprint_error_dev(self, "failed to establish interrupt %d\n",
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loc->loc_intrs[0]);
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goto fail;
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}
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aprint_normal_dev(self, "interrupting on irq %d\n",
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loc->loc_intrs[0]);
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return;
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fail:
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if (ccbsc->ccbsc_ih) {
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intr_disestablish(ccbsc->ccbsc_ih);
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ccbsc->ccbsc_ih = NULL;
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}
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}
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