i80321var.h revision 135669 
1/*	$NetBSD: i80321var.h,v 1.8 2003/10/06 16:06:06 thorpej Exp $	*/
2
3/*
4 * Copyright (c) 2002, 2003 Wasabi Systems, Inc.
5 * All rights reserved.
6 *
7 * Written by Jason R. Thorpe for Wasabi Systems, Inc.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 *    notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 *    notice, this list of conditions and the following disclaimer in the
16 *    documentation and/or other materials provided with the distribution.
17 * 3. All advertising materials mentioning features or use of this software
18 *    must display the following acknowledgement:
19 *	This product includes software developed for the NetBSD Project by
20 *	Wasabi Systems, Inc.
21 * 4. The name of Wasabi Systems, Inc. may not be used to endorse
22 *    or promote products derived from this software without specific prior
23 *    written permission.
24 *
25 * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
27 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
28 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL WASABI SYSTEMS, INC
29 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
30 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
31 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
32 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
33 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
34 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
35 * POSSIBILITY OF SUCH DAMAGE.
36 *
37 * $FreeBSD: head/sys/arm/xscale/i80321/i80321var.h 135669 2004-09-23 22:45:36Z cognet $
38 *
39 */
40
41#ifndef _ARM_XSCALE_I80321VAR_H_
42#define	_ARM_XSCALE_I80321VAR_H_
43
44#include <sys/queue.h>
45#include <dev/pci/pcivar.h>
46
47/*
48 * There are roughly 32 interrupt sources.
49 */
50#define	NIRQ		32
51
52extern struct bus_space i80321_bs_tag;
53
54struct i80321_softc {
55	device_t 		dev;
56	bus_space_tag_t 	sc_st;
57	bus_space_handle_t	sc_sh;
58	/* Handles for the various subregions. */
59	bus_space_handle_t 	sc_atu_sh;
60	bus_space_handle_t 	sc_mcu_sh;
61	int			sc_is_host;
62
63	/*
64	 * We expect the board-specific front-end to have already mapped
65	 * the PCI I/O space .. it is only 64K, and I/O mappings tend to
66	 * be smaller than a page size, so it's generally more efficient
67	 * to map them all into virtual space in one fell swoop.
68	 */
69	vm_offset_t		sc_iow_vaddr;		/* I/O window vaddr */
70
71	/*
72	 * Variables that define the Inbound windows.  The base address of
73	 * 0-2 are configured by a host via BARs.  The xlate variable
74	 * defines the start of the local address space that it maps to.
75	 * The size variable defines the byte size.
76	 *
77	 * The first 3 windows are for incoming PCI memory read/write
78	 * cycles from a host.  The 4th window, not configured by the
79	 * host (as it outside the normal BAR range) is the inbound
80	 * window for PCI devices controlled by the i80321.
81	 */
82	struct {
83		uint32_t iwin_base_hi;
84		uint32_t iwin_base_lo;
85		uint32_t iwin_xlate;
86		uint32_t iwin_size;
87	} sc_iwin[4];
88
89	/*
90	 * Variables that define the Outbound windows.
91	 */
92	struct {
93		uint32_t owin_xlate_lo;
94		uint32_t owin_xlate_hi;
95	} sc_owin[2];
96
97	/*
98	 * This is the PCI address that the Outbound I/O
99	 * window maps to.
100	 */
101	uint32_t		sc_ioout_xlate;
102
103	/* Bus space, DMA, and PCI tags for the PCI bus (private devices). */
104	struct bus_space 	sc_pci_iot;
105	struct bus_space 	sc_pci_memt;
106
107	/* GPIO state */
108	uint8_t sc_gpio_dir;    /* GPIO pin direction (1 == output) */
109	uint8_t sc_gpio_val;    /* GPIO output pin value */
110
111};
112void	i80321_sdram_bounds(bus_space_tag_t, bus_space_handle_t,
113	    vm_paddr_t *, vm_size_t *);
114
115void	i80321_attach(struct i80321_softc *);
116void	i80321_calibrate_delay(void);
117
118void	i80321_bs_init(bus_space_tag_t, void *);
119void	i80321_io_bs_init(bus_space_tag_t, void *);
120void	i80321_mem_bs_init(bus_space_tag_t, void *);
121
122#endif /* _ARM_XSCALE_I80321VAR_H_ */
123