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/*-
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright (c) 2021 Semihalf
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/param.h>
#include <sys/bus.h>
#include <sys/kernel.h>
#include <sys/types.h>
#include <sys/taskqueue.h>
#include <sys/module.h>
#include <machine/bus.h>
#include <dev/ofw/ofw_bus.h>
#include <dev/ofw/ofw_bus_subr.h>
#include <dev/mmc/bridge.h>
#include <dev/mmc/mmcbrvar.h>
#include <dev/mmc/mmcreg.h>
#include <dev/fdt/fdt_common.h>
#include <dev/mmc/mmc_fdt_helpers.h>
#include <dev/sdhci/sdhci.h>
#include <dev/sdhci/sdhci_fdt_gpio.h>
#include <dev/sdhci/sdhci_xenon.h>
#include "mmcbr_if.h"
#include "sdhci_if.h"
#include "opt_mmccam.h"
#include "opt_soc.h"
static struct ofw_compat_data compat_data[] = {
{ "marvell,armada-3700-sdhci", 1 },
#ifdef SOC_MARVELL_8K
{ "marvell,armada-cp110-sdhci", 1 },
{ "marvell,armada-ap806-sdhci", 1 },
{ "marvell,armada-ap807-sdhci", 1 },
#endif
{ NULL, 0 }
};
static bool
sdhci_xenon_fdt_get_card_present(device_t dev, struct sdhci_slot *slot)
{
struct sdhci_xenon_softc *sc;
sc = device_get_softc(dev);
return (sdhci_fdt_gpio_get_present(sc->gpio));
}
static int
sdhci_xenon_fdt_probe(device_t dev)
{
if (!ofw_bus_status_okay(dev))
return (ENXIO);
if (ofw_bus_search_compatible(dev, compat_data)->ocd_data == 0)
return (ENXIO);
device_set_desc(dev, "Armada Xenon SDHCI controller");
return (BUS_PROBE_SPECIFIC);
}
static void
sdhci_xenon_fdt_parse(device_t dev, struct sdhci_slot *slot)
{
struct sdhci_xenon_softc *sc;
struct mmc_helper mmc_helper;
sc = device_get_softc(dev);
memset(&mmc_helper, 0, sizeof(mmc_helper));
/* MMC helper for parsing FDT */
mmc_fdt_parse(dev, 0, &mmc_helper, &slot->host);
sc->skip_regulators = false;
sc->vmmc_supply = mmc_helper.vmmc_supply;
sc->vqmmc_supply = mmc_helper.vqmmc_supply;
sc->wp_inverted = mmc_helper.props & MMC_PROP_WP_INVERTED;
/* Check if the device is flagged as non-removable. */
if (mmc_helper.props & MMC_PROP_NON_REMOVABLE) {
slot->opt |= SDHCI_NON_REMOVABLE;
if (bootverbose)
device_printf(dev, "Non-removable media\n");
}
}
static int
sdhci_xenon_fdt_attach(device_t dev)
{
struct sdhci_xenon_softc *sc;
struct sdhci_slot *slot;
sc = device_get_softc(dev);
slot = malloc(sizeof(*slot), M_DEVBUF, M_ZERO | M_WAITOK);
sdhci_xenon_fdt_parse(dev, slot);
/*
* Set up any gpio pin handling described in the FDT data. This cannot
* fail; see comments in sdhci_fdt_gpio.h for details.
*/
sc->gpio = sdhci_fdt_gpio_setup(dev, slot);
sc->slot = slot;
return (sdhci_xenon_attach(dev));
}
static int
sdhci_xenon_fdt_detach(device_t dev)
{
struct sdhci_xenon_softc *sc;
sc = device_get_softc(dev);
if (sc->gpio != NULL)
sdhci_fdt_gpio_teardown(sc->gpio);
return (sdhci_xenon_detach(dev));
}
static device_method_t sdhci_xenon_fdt_methods[] = {
/* device_if */
DEVMETHOD(device_probe, sdhci_xenon_fdt_probe),
DEVMETHOD(device_attach, sdhci_xenon_fdt_attach),
DEVMETHOD(device_detach, sdhci_xenon_fdt_detach),
DEVMETHOD(sdhci_get_card_present, sdhci_xenon_fdt_get_card_present),
DEVMETHOD_END
};
DEFINE_CLASS_1(sdhci_xenon, sdhci_xenon_fdt_driver, sdhci_xenon_fdt_methods,
sizeof(struct sdhci_xenon_softc), sdhci_xenon_driver);
DRIVER_MODULE(sdhci_xenon, simplebus, sdhci_xenon_fdt_driver, NULL, NULL);
#ifndef MMCCAM
MMC_DECLARE_BRIDGE(sdhci_xenon_fdt);
#endif
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