lbc.h revision 209908 
1123302Sobrien/*-
2123302Sobrien * Copyright (c) 2006-2008, Juniper Networks, Inc.
3123302Sobrien * All rights reserved.
4123302Sobrien *
5128725Sru * Redistribution and use in source and binary forms, with or without
6128724Sru * modification, are permitted provided that the following conditions
7123302Sobrien * are met:
8123302Sobrien *
9 * 1. Redistributions of source code must retain the above copyright
10 *    notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 *
26 * $FreeBSD: head/sys/powerpc/mpc85xx/lbc.h 209908 2010-07-11 21:08:29Z raj $
27 */
28
29#ifndef _MACHINE_LBC_H_
30#define	_MACHINE_LBC_H_
31
32/* Maximum number of devices on Local Bus */
33#define	LBC_DEV_MAX	8
34
35/* Local access registers */
36#define	LBC85XX_BR(n)	(8 * n)
37#define	LBC85XX_OR(n)	(4 + (8 * n))
38#define	LBC85XX_LBCR	(0xd0)
39#define	LBC85XX_LCRR	(0xd4)
40
41/* LBC machine select */
42#define	LBCRES_MSEL_GPCM	0
43#define	LBCRES_MSEL_FCM		1
44#define	LBCRES_MSEL_UPMA	8
45#define	LBCRES_MSEL_UPMB	9
46#define	LBCRES_MSEL_UPMC	10
47
48/* LBC data error checking modes */
49#define	LBCRES_DECC_DISABLED	0
50#define	LBCRES_DECC_NORMAL	1
51#define	LBCRES_DECC_RMW		2
52
53/* LBC atomic operation modes */
54#define	LBCRES_ATOM_DISABLED	0
55#define	LBCRES_ATOM_RAWA	1
56#define	LBCRES_ATOM_WARA	2
57
58struct lbc_bank {
59	u_long		pa;		/* physical addr of the bank */
60	u_long		size;		/* bank size */
61	vm_offset_t	va;		/* VA of the bank */
62
63	/*
64	 * XXX the following bank attributes do not have properties specified
65	 * in the LBC DTS bindings yet (11.2009), so they are mainly a
66	 * placeholder for future extensions.
67	 */
68	int		width;		/* data bus width */
69	uint8_t		msel;		/* machine select */
70	uint8_t		atom;		/* atomic op mode */
71	uint8_t		wp;		/* write protect */
72	uint8_t		decc;		/* data error checking */
73};
74
75struct lbc_softc {
76	device_t		sc_dev;
77	struct resource		*sc_res;
78	bus_space_handle_t	sc_bsh;
79	bus_space_tag_t		sc_bst;
80	int			sc_rid;
81
82	struct rman		sc_rman;
83
84	int			sc_addr_cells;
85	int			sc_size_cells;
86
87	struct lbc_bank		sc_banks[LBC_DEV_MAX];
88};
89
90struct lbc_devinfo {
91	struct ofw_bus_devinfo	di_ofw;
92	struct resource_list	di_res;
93	int			di_bank;
94};
95
96#endif /* _MACHINE_LBC_H_ */
97