xref: /freebsd/sys/dev/bhnd/cores/chipc/chipc_cfi.c (revision 4f52dfbb)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3  *
4  * Copyright (c) 2016 Michael Zhilin <mizhka@gmail.com>
5  * All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer,
12  *    without modification.
13  * 2. Redistributions in binary form must reproduce at minimum a disclaimer
14  *    similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
15  *    redistribution must be conditioned upon including a substantially
16  *    similar Disclaimer requirement for further binary redistribution.
17  *
18  * NO WARRANTY
19  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
21  * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
22  * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
23  * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,
24  * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
27  * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
29  * THE POSSIBILITY OF SUCH DAMAGES.
30  */
31 
32 #include <sys/cdefs.h>
33 __FBSDID("$FreeBSD$");
34 
35 #include <sys/param.h>
36 #include <sys/systm.h>
37 #include <sys/kernel.h>
38 #include <sys/module.h>
39 #include <sys/bus.h>
40 #include <sys/rman.h>
41 #include <sys/conf.h>
42 
43 #include <machine/bus.h>
44 
45 #include <dev/cfi/cfi_var.h>
46 
47 #include "bhnd_chipc_if.h"
48 
49 #include "chipcreg.h"
50 #include "chipcvar.h"
51 #include "chipc_slicer.h"
52 
53 static int
54 chipc_cfi_probe(device_t dev)
55 {
56 	struct cfi_softc	*sc;
57 	int			error;
58 
59 	sc = device_get_softc(dev);
60 
61 	sc->sc_width = 0;
62 	if ((error = cfi_probe(dev)) > 0)
63 		return (error);
64 
65 	device_set_desc(dev, "Broadcom ChipCommon CFI");
66 	return (error);
67 }
68 
69 static int
70 chipc_cfi_attach(device_t dev)
71 {
72 	chipc_register_slicer(CHIPC_PFLASH_CFI);
73 	return (cfi_attach(dev));
74 }
75 
76 static device_method_t chipc_cfi_methods[] = {
77 	/* device interface */
78 	DEVMETHOD(device_probe,		chipc_cfi_probe),
79 	DEVMETHOD(device_attach,	chipc_cfi_attach),
80 	DEVMETHOD(device_detach,	cfi_detach),
81 
82 	{0, 0}
83 };
84 
85 static driver_t chipc_cfi_driver = {
86 	cfi_driver_name,
87 	chipc_cfi_methods,
88 	sizeof(struct cfi_softc),
89 };
90 
91 DRIVER_MODULE(cfi, bhnd_chipc, chipc_cfi_driver, cfi_devclass, 0, 0);
92