diff options
Diffstat (limited to 'sys/arm64/arm64/gic_fdt.c')
-rw-r--r-- | sys/arm64/arm64/gic_fdt.c | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/sys/arm64/arm64/gic_fdt.c b/sys/arm64/arm64/gic_fdt.c new file mode 100644 index 000000000000..5b70624d7362 --- /dev/null +++ b/sys/arm64/arm64/gic_fdt.c @@ -0,0 +1,87 @@ +/*- + * Copyright (c) 2015 The FreeBSD Foundation + * All rights reserved. + * + * This software was developed by Andrew Turner under + * sponsorship from the FreeBSD Foundation. + * + * 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/types.h> +#include <sys/bus.h> +#include <sys/kernel.h> +#include <sys/module.h> + +#include <machine/bus.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 <arm64/arm64/gic.h> + +static struct ofw_compat_data compat_data[] = { + {"arm,gic", true}, /* Non-standard, used in FreeBSD dts. */ + {"arm,gic-400", true}, + {"arm,cortex-a15-gic", true}, + {"arm,cortex-a9-gic", true}, + {"arm,cortex-a7-gic", true}, + {"arm,arm11mp-gic", true}, + {"brcm,brahma-b15-gic", true}, + {NULL, false} +}; + +static int +arm_gic_fdt_probe(device_t dev) +{ + + if (!ofw_bus_status_okay(dev)) + return (ENXIO); + + if (!ofw_bus_search_compatible(dev, compat_data)->ocd_data) + return (ENXIO); + + device_set_desc(dev, "ARM Generic Interrupt Controller"); + return (BUS_PROBE_DEFAULT); +} + +static device_method_t arm_gic_fdt_methods[] = { + /* Device interface */ + DEVMETHOD(device_probe, arm_gic_fdt_probe), + + DEVMETHOD_END +}; + +DEFINE_CLASS_1(gic, arm_gic_fdt_driver, arm_gic_fdt_methods, + sizeof(struct arm_gic_softc), arm_gic_driver); + +static devclass_t arm_gic_fdt_devclass; + +EARLY_DRIVER_MODULE(gic, simplebus, arm_gic_fdt_driver, + arm_gic_fdt_devclass, 0, 0, BUS_PASS_INTERRUPT + BUS_PASS_ORDER_MIDDLE); +EARLY_DRIVER_MODULE(gic, ofwbus, arm_gic_fdt_driver, arm_gic_fdt_devclass, + 0, 0, BUS_PASS_INTERRUPT + BUS_PASS_ORDER_MIDDLE); |