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freebsd/sys/dev/cfi/cfi_bus_nexus.c
Nathan Whitehorn 11dc3f01ec Set BUS_PROBE_NOWILDCARD on this attachment as a stopgap. Unconditionally
poking at registers in unknown devices is not the best probe mechanism.
This should be reverted and a better solution found later.
2013-10-22 14:10:00 +00:00

83 lines
2.5 KiB
C

/*-
* Copyright (c) 2012 SRI International
* Copyright (c) 2009 Roelof Jonkman, Carlson Wireless Inc.
* Copyright (c) 2009 Sam Leffler, Errno Consulting
* All rights reserved.
*
* Portions of this software were 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 ``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/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/bus.h>
#include <sys/conf.h>
#include <sys/kernel.h>
#include <sys/malloc.h>
#include <sys/module.h>
#include <sys/rman.h>
#include <sys/sysctl.h>
#include <machine/bus.h>
#include <dev/cfi/cfi_var.h>
static int
cfi_nexus_probe(device_t dev)
{
return (BUS_PROBE_NOWILDCARD);
}
static int
cfi_nexus_attach(device_t dev)
{
int error;
error = cfi_probe(dev);
if (error != 0)
return (error);
return cfi_attach(dev);
}
static device_method_t cfi_nexus_methods[] = {
/* device interface */
DEVMETHOD(device_probe, cfi_nexus_probe),
DEVMETHOD(device_attach, cfi_nexus_attach),
DEVMETHOD(device_detach, cfi_detach),
{0, 0}
};
static driver_t cfi_nexus_driver = {
cfi_driver_name,
cfi_nexus_methods,
sizeof(struct cfi_softc),
};
DRIVER_MODULE(cfi, nexus, cfi_nexus_driver, cfi_devclass, 0, 0);