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150 lines
4.1 KiB
C
150 lines
4.1 KiB
C
/* $NetBSD: omap5_ahcisata.c,v 1.3 2014/04/04 21:33:19 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 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 <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: omap5_ahcisata.c,v 1.3 2014/04/04 21:33:19 matt Exp $");
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#include "locators.h"
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#include "opt_omap.h"
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/intr.h>
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#include <sys/kernel.h>
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#include <sys/device.h>
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#include <sys/bus.h>
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#include <sys/gpio.h>
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#include <dev/ata/atavar.h>
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#include <dev/ic/ahcisatavar.h>
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#include <arm/omap/omap2_obioreg.h>
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#include <arm/omap/omap2_obiovar.h>
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#include <arm/omap/omap2_reg.h>
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struct omap5_ahci_softc {
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struct ahci_softc psc_sc;
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void *psc_ih;
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};
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static int
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omap5_ahcisata_match(device_t parent, cfdata_t match, void *aux)
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{
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#if defined(OMAP5)
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struct obio_attach_args *obio = aux;
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if (obio->obio_addr == AHCI1_BASE_OMAP5)
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return 1;
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#endif
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return 0;
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}
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static void
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omap5_ahcisata_attach(device_t parent, device_t self, void *aux)
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{
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struct omap5_ahci_softc *psc = device_private(self);
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struct ahci_softc * const sc = &psc->psc_sc;
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struct obio_attach_args * const obio = aux;
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int rv;
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sc->sc_atac.atac_dev = self;
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aprint_naive("\n");
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aprint_normal(": OMAP AHCI controller\n");
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#ifdef OMAP5
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{
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bus_space_handle_t ioh;
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rv = bus_space_map(obio->obio_iot, OMAP2_CM_BASE
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+ OMAP5_CM_L3INIT_CORE + OMAP5_CM_L3INIT_SATA_CLKCTRL,
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4, 0, &ioh);
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KASSERT(rv == 0);
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uint32_t v = bus_space_read_4(obio->obio_iot, ioh, 0);
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v &= ~OMAP4_CM_L3INIT_SATA_CLKCTRL_MODULEMODE;
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v |= OMAP4_CM_L3INIT_SATA_CLKCTRL_MODULEMODE_HW;
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bus_space_write_4(obio->obio_iot, ioh, 0, v);
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bus_space_unmap(obio->obio_iot, ioh, 4);
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}
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#endif
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sc->sc_ahci_ports = 1;
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sc->sc_dmat = obio->obio_dmat;
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sc->sc_ahcit = obio->obio_iot;
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sc->sc_ahcis = obio->obio_size;
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rv = bus_space_map(obio->obio_iot, obio->obio_addr, obio->obio_size,
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0, &sc->sc_ahcih);
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if (rv) {
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aprint_error_dev(self, "couldn't map memory space\n");
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return;
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}
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psc->psc_ih = intr_establish(obio->obio_intr, IPL_BIO, IST_LEVEL,
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ahci_intr, sc);
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ahci_attach(sc);
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}
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static int
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omap5_ahcisata_detach(device_t self, int flags)
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{
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struct omap5_ahci_softc * const psc = device_private(self);
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struct ahci_softc * const sc = &psc->psc_sc;
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int rv;
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rv = ahci_detach(sc, flags);
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if (rv)
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return rv;
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if (psc->psc_ih) {
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intr_disestablish(psc->psc_ih);
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psc->psc_ih = NULL;
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}
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if (sc->sc_ahcis) {
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bus_space_unmap(sc->sc_ahcit, sc->sc_ahcih, sc->sc_ahcis);
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sc->sc_ahcit = 0;
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sc->sc_ahcih = 0;
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sc->sc_ahcis = 0;
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}
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return 0;
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}
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CFATTACH_DECL_NEW(omap5_ahcisata, sizeof(struct omap5_ahci_softc),
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omap5_ahcisata_match,
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omap5_ahcisata_attach,
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omap5_ahcisata_detach,
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0
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);
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