xref: /freebsd/sys/powerpc/mpc85xx/pci_mpc85xx_pcib.c (revision c9bd5bee1a2b247e69560e88d06a3a71ad0c7737)
1809923caSJustin Hibbits /*-
2809923caSJustin Hibbits  * Copyright 2015 Justin Hibbits
3809923caSJustin Hibbits  * All rights reserved.
4809923caSJustin Hibbits  *
5809923caSJustin Hibbits  * Redistribution and use in source and binary forms, with or without
6809923caSJustin Hibbits  * modification, are permitted provided that the following conditions
7809923caSJustin Hibbits  * are met:
8809923caSJustin Hibbits  * 1. Redistributions of source code must retain the above copyright
9809923caSJustin Hibbits  *    notice, this list of conditions and the following disclaimer.
10809923caSJustin Hibbits  * 2. Redistributions in binary form must reproduce the above copyright
11809923caSJustin Hibbits  *    notice, this list of conditions and the following disclaimer in the
12809923caSJustin Hibbits  *    documentation and/or other materials provided with the distribution.
13809923caSJustin Hibbits  * 3. The name of the author may not be used to endorse or promote products
14809923caSJustin Hibbits  *    derived from this software without specific prior written permission.
15809923caSJustin Hibbits  *
16809923caSJustin Hibbits  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17809923caSJustin Hibbits  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18809923caSJustin Hibbits  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19809923caSJustin Hibbits  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20809923caSJustin Hibbits  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
21809923caSJustin Hibbits  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
22809923caSJustin Hibbits  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
23809923caSJustin Hibbits  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
24809923caSJustin Hibbits  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25809923caSJustin Hibbits  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26809923caSJustin Hibbits  * SUCH DAMAGE.
27809923caSJustin Hibbits  *
28809923caSJustin Hibbits  * From: FreeBSD: src/sys/powerpc/mpc85xx/pci_ocp.c,v 1.9 2010/03/23 23:46:28 marcel
29809923caSJustin Hibbits  */
30809923caSJustin Hibbits 
31809923caSJustin Hibbits #include <sys/cdefs.h>
32809923caSJustin Hibbits __FBSDID("$FreeBSD$");
33809923caSJustin Hibbits 
34809923caSJustin Hibbits #include <sys/param.h>
35809923caSJustin Hibbits #include <sys/systm.h>
36809923caSJustin Hibbits #include <sys/ktr.h>
37809923caSJustin Hibbits #include <sys/sockio.h>
38809923caSJustin Hibbits #include <sys/mbuf.h>
39809923caSJustin Hibbits #include <sys/malloc.h>
40809923caSJustin Hibbits #include <sys/kernel.h>
41809923caSJustin Hibbits #include <sys/module.h>
42809923caSJustin Hibbits #include <sys/socket.h>
43809923caSJustin Hibbits #include <sys/queue.h>
44809923caSJustin Hibbits #include <sys/bus.h>
45809923caSJustin Hibbits #include <sys/lock.h>
46809923caSJustin Hibbits #include <sys/mutex.h>
47809923caSJustin Hibbits #include <sys/rman.h>
48809923caSJustin Hibbits #include <sys/endian.h>
49809923caSJustin Hibbits 
50809923caSJustin Hibbits #include <vm/vm.h>
51809923caSJustin Hibbits #include <vm/pmap.h>
52809923caSJustin Hibbits 
5327353776SJustin Hibbits #include <dev/ofw/openfirm.h>
5427353776SJustin Hibbits #include <dev/ofw/ofw_pci.h>
5527353776SJustin Hibbits #include <dev/ofw/ofw_bus.h>
5627353776SJustin Hibbits #include <dev/ofw/ofw_bus_subr.h>
5727353776SJustin Hibbits 
58809923caSJustin Hibbits #include <dev/pci/pcivar.h>
59809923caSJustin Hibbits #include <dev/pci/pcireg.h>
60809923caSJustin Hibbits #include <dev/pci/pcib_private.h>
61809923caSJustin Hibbits 
6227353776SJustin Hibbits #include <machine/intr_machdep.h>
6327353776SJustin Hibbits 
64809923caSJustin Hibbits #include "pcib_if.h"
65809923caSJustin Hibbits 
66*c9bd5beeSJustin Hibbits DECLARE_CLASS(ofw_pcib_pci_driver);
67*c9bd5beeSJustin Hibbits 
6827353776SJustin Hibbits struct fsl_pcib_softc {
6927353776SJustin Hibbits         /*
7027353776SJustin Hibbits          * This is here so that we can use pci bridge methods, too - the
7127353776SJustin Hibbits          * generic routines only need the dev, secbus and subbus members
7227353776SJustin Hibbits          * filled.
73*c9bd5beeSJustin Hibbits          *
74*c9bd5beeSJustin Hibbits          * XXX: This should be extracted from ofw_pcib_pci.c, and shared in a
75*c9bd5beeSJustin Hibbits          * header.
7627353776SJustin Hibbits          */
7727353776SJustin Hibbits         struct pcib_softc       ops_pcib_sc;
7827353776SJustin Hibbits 	phandle_t		ops_node;
7927353776SJustin Hibbits         struct ofw_bus_iinfo    ops_iinfo;
8027353776SJustin Hibbits };
8127353776SJustin Hibbits 
82809923caSJustin Hibbits static int
83809923caSJustin Hibbits fsl_pcib_rc_probe(device_t dev)
84809923caSJustin Hibbits {
85fe11dfeaSJustin Hibbits 
86809923caSJustin Hibbits 	if (pci_get_vendor(dev) != 0x1957)
87809923caSJustin Hibbits 		return (ENXIO);
88809923caSJustin Hibbits 	if (pci_get_progif(dev) != 0)
89809923caSJustin Hibbits 		return (ENXIO);
90809923caSJustin Hibbits 	if (pci_get_class(dev) != PCIC_PROCESSOR)
91809923caSJustin Hibbits 		return (ENXIO);
92809923caSJustin Hibbits 	if (pci_get_subclass(dev) != PCIS_PROCESSOR_POWERPC)
93809923caSJustin Hibbits 		return (ENXIO);
94809923caSJustin Hibbits 
95809923caSJustin Hibbits 	return (BUS_PROBE_DEFAULT);
96809923caSJustin Hibbits }
97809923caSJustin Hibbits 
98809923caSJustin Hibbits static device_method_t fsl_pcib_rc_methods[] = {
99809923caSJustin Hibbits 	DEVMETHOD(device_probe,		fsl_pcib_rc_probe),
100809923caSJustin Hibbits 	DEVMETHOD_END
101809923caSJustin Hibbits };
102809923caSJustin Hibbits 
103809923caSJustin Hibbits static devclass_t fsl_pcib_rc_devclass;
104809923caSJustin Hibbits DEFINE_CLASS_1(pcib, fsl_pcib_rc_driver, fsl_pcib_rc_methods,
105*c9bd5beeSJustin Hibbits     sizeof(struct fsl_pcib_softc), ofw_pcib_pci_driver);
106809923caSJustin Hibbits DRIVER_MODULE(rcpcib, pci, fsl_pcib_rc_driver, fsl_pcib_rc_devclass, 0, 0);
107