freebsd-dev/sys/powerpc/mpc85xx/pci_mpc85xx_pcib.c
Justin Hibbits fe11dfea79 Modernize mpc85xx PCI hostbridge driver.
Summary:
* Take advantage of NEW_PCIB to remove a lot of setup code.
* Fix some bugs related to multiple PCI bridges.

There's still room for more cleanup, and still some bugs leftover, but this
cleans up a lot.

Test Plan: Tested on P5020 board with IDT PCIe switch.

Differential Revision: https://reviews.freebsd.org/D4127
2015-11-22 01:16:43 +00:00

85 lines
2.7 KiB
C

/*-
* Copyright 2015 Justin Hibbits
* All rights reserved.
*
* 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.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* 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.
*
* From: FreeBSD: src/sys/powerpc/mpc85xx/pci_ocp.c,v 1.9 2010/03/23 23:46:28 marcel
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/ktr.h>
#include <sys/sockio.h>
#include <sys/mbuf.h>
#include <sys/malloc.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <sys/socket.h>
#include <sys/queue.h>
#include <sys/bus.h>
#include <sys/lock.h>
#include <sys/mutex.h>
#include <sys/rman.h>
#include <sys/endian.h>
#include <vm/vm.h>
#include <vm/pmap.h>
#include <dev/pci/pcivar.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pcib_private.h>
#include "pcib_if.h"
static int
fsl_pcib_rc_probe(device_t dev)
{
if (pci_get_vendor(dev) != 0x1957)
return (ENXIO);
if (pci_get_progif(dev) != 0)
return (ENXIO);
if (pci_get_class(dev) != PCIC_PROCESSOR)
return (ENXIO);
if (pci_get_subclass(dev) != PCIS_PROCESSOR_POWERPC)
return (ENXIO);
return (BUS_PROBE_DEFAULT);
}
static device_method_t fsl_pcib_rc_methods[] = {
DEVMETHOD(device_probe, fsl_pcib_rc_probe),
DEVMETHOD_END
};
static devclass_t fsl_pcib_rc_devclass;
DEFINE_CLASS_1(pcib, fsl_pcib_rc_driver, fsl_pcib_rc_methods,
sizeof(struct pcib_softc), pcib_driver);
DRIVER_MODULE(rcpcib, pci, fsl_pcib_rc_driver, fsl_pcib_rc_devclass, 0, 0);