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: releng/6.3/sys/arm/xscale/i80321/i80321var.h 139735 2005-01-05 21:58:49Z imp $
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
52 extern struct bus_space i80321_bs_tag;
53
54 struct 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 };
112 void i80321_sdram_bounds(bus_space_tag_t, bus_space_handle_t,
113 vm_paddr_t *, vm_size_t *);
114
115 void i80321_attach(struct i80321_softc *);
116 void i80321_calibrate_delay(void);
117
118 void i80321_bs_init(bus_space_tag_t, void *);
119 void i80321_io_bs_init(bus_space_tag_t, void *);
120 void i80321_mem_bs_init(bus_space_tag_t, void *);
121
122 #endif /* _ARM_XSCALE_I80321VAR_H_ */
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