91 lines
2.8 KiB
C
91 lines
2.8 KiB
C
/*-
|
|
* Copyright (c) 2018-2020 Ruslan Bukin <br@bsdpad.com>
|
|
* All rights reserved.
|
|
*
|
|
* This software was developed by BAE Systems, the University of Cambridge
|
|
* Computer Laboratory, and Memorial University under DARPA/AFRL contract
|
|
* FA8650-15-C-7558 ("CADETS"), as part of the DARPA Transparent Computing
|
|
* (TC) research program.
|
|
*
|
|
* 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>
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/bus.h>
|
|
#include <sys/rman.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/module.h>
|
|
#include <machine/bus.h>
|
|
|
|
#include <dev/ofw/ofw_bus.h>
|
|
#include <dev/ofw/ofw_bus_subr.h>
|
|
|
|
#include <arm64/coresight/coresight.h>
|
|
#include <arm64/coresight/coresight_etm4x.h>
|
|
|
|
#include "coresight_if.h"
|
|
|
|
static struct ofw_compat_data compat_data[] = {
|
|
{ "arm,coresight-etm4x", 1 },
|
|
{ NULL, 0 }
|
|
};
|
|
|
|
static int
|
|
etm_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, "AArch64 Embedded Trace Macrocell");
|
|
|
|
return (BUS_PROBE_DEFAULT);
|
|
}
|
|
|
|
static int
|
|
etm_fdt_attach(device_t dev)
|
|
{
|
|
struct etm_softc *sc;
|
|
|
|
sc = device_get_softc(dev);
|
|
sc->pdata = coresight_fdt_get_platform_data(dev);
|
|
|
|
return (etm_attach(dev));
|
|
}
|
|
|
|
static device_method_t etm_fdt_methods[] = {
|
|
/* Device interface */
|
|
DEVMETHOD(device_probe, etm_fdt_probe),
|
|
DEVMETHOD(device_attach, etm_fdt_attach),
|
|
DEVMETHOD_END
|
|
};
|
|
|
|
DEFINE_CLASS_1(etm, etm_fdt_driver, etm_fdt_methods,
|
|
sizeof(struct etm_softc), etm_driver);
|
|
|
|
EARLY_DRIVER_MODULE(etm, simplebus, etm_fdt_driver, 0, 0,
|
|
BUS_PASS_INTERRUPT + BUS_PASS_ORDER_MIDDLE);
|