diff options
Diffstat (limited to 'sys/dev/isf/isf_fdt.c')
-rw-r--r-- | sys/dev/isf/isf_fdt.c | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/sys/dev/isf/isf_fdt.c b/sys/dev/isf/isf_fdt.c new file mode 100644 index 0000000..f4c20a2 --- /dev/null +++ b/sys/dev/isf/isf_fdt.c @@ -0,0 +1,124 @@ +/*- + * Copyright (c) 2012 Robert N. M. Watson + * Copyright (c) 2012 SRI International + * All rights reserved. + * + * This software was developed by SRI International and the University of + * Cambridge Computer Laboratory under DARPA/AFRL contract (FA8750-10-C-0237) + * ("CTSRD"), as part of the DARPA CRASH research programme. + * + * 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 AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include <sys/param.h> +#include <sys/bus.h> +#include <sys/condvar.h> +#include <sys/conf.h> +#include <sys/bio.h> +#include <sys/kernel.h> +#include <sys/lock.h> +#include <sys/malloc.h> +#include <sys/module.h> +#include <sys/mutex.h> +#include <sys/rman.h> +#include <sys/systm.h> +#include <sys/taskqueue.h> + +#include <machine/bus.h> +#include <machine/resource.h> + +#include <geom/geom_disk.h> + +#include <dev/fdt/fdt_common.h> +#include <dev/ofw/openfirm.h> +#include <dev/ofw/ofw_bus.h> +#include <dev/ofw/ofw_bus_subr.h> + +#include <dev/isf/isf.h> + +/* + * FDT bus attachment for the Intel Strata Flash devices. + */ +static int +isf_fdt_probe(device_t dev) +{ + + if (ofw_bus_is_compatible(dev, "intel,strataflash")) { + device_set_desc(dev, "Intel StrataFlash NOR flash device"); + return (BUS_PROBE_DEFAULT); + } + return (ENXIO); +} + +static int +isf_fdt_attach(device_t dev) +{ + int error; + struct isf_softc *sc; + + sc = device_get_softc(dev); + sc->isf_dev = dev; + sc->isf_unit = device_get_unit(dev); + sc->isf_rid = 0; + sc->isf_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, + &sc->isf_rid, RF_ACTIVE); + if (sc->isf_res == NULL) { + device_printf(dev, "couldn't map memory\n"); + return (ENXIO); + } + error = isf_attach(sc); + if (error) + bus_release_resource(dev, SYS_RES_MEMORY, sc->isf_rid, + sc->isf_res); + return (error); +} + +static int +isf_fdt_detach(device_t dev) +{ + struct isf_softc *sc; + + sc = device_get_softc(dev); + KASSERT(sc->isf_res != NULL, ("%s: resources not allocated", + __func__)); + isf_detach(sc); + bus_release_resource(dev, SYS_RES_MEMORY, sc->isf_rid, sc->isf_res); + return (0); +} + +static device_method_t isf_fdt_methods[] = { + DEVMETHOD(device_probe, isf_fdt_probe), + DEVMETHOD(device_attach, isf_fdt_attach), + DEVMETHOD(device_detach, isf_fdt_detach), + { 0, 0 } +}; + +static driver_t isf_fdt_driver = { + "isf", + isf_fdt_methods, + sizeof(struct isf_softc), +}; + +DRIVER_MODULE(isf, simplebus, isf_fdt_driver, isf_devclass, 0, 0); |