1/*	$NetBSD: cyclone_boot.h,v 1.2 2021/08/22 07:00:41 skrll Exp $	*/
2
3/*
4 * Copyright (c) 1997,1998 Mark Brinicombe.
5 * Copyright (c) 1997,1998 Causality Limited.
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in the
15 *    documentation and/or other materials provided with the distribution.
16 * 3. All advertising materials mentioning features or use of this software
17 *    must display the following acknowledgement:
18 *	This product includes software developed by Mark Brinicombe.
19 * 4. The name of the company nor the name of the author may be used to
20 *    endorse or promote products derived from this software without specific
21 *    prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
24 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
25 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
26 * IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
27 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
28 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
29 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 */
35
36/*
37 * Define the boot structure that is passed to the kernel
38 * from the cyclone firmware.
39 *
40 * The bootloader reserves a page for boot argument info.
41 * This page will contain the ebsaboot structure and the
42 * kernel argument string.
43 */
44
45struct ebsaboot {
46	uint32_t	bt_magic;	/* boot info magic number */
47	uint32_t	bt_vargp;	/* virtual addr of arg page */
48	uint32_t	bt_pargp;	/* physical addr of arg page */
49	const char *	bt_args;	/* kernel args string pointer */
50	pd_entry_t *	bt_l1;		/* active L1 page table */
51	uint32_t	bt_memstart;	/* start of physical memory */
52	uint32_t	bt_memend;	/* end of physical memory */
53	uint32_t	bt_memavail;	/* start of avail phys memory */
54	uint32_t	bt_fclk;	/* fclk frequency */
55	uint32_t	bt_pciclk;	/* PCI bus frequency */
56	uint32_t	bt_vers;	/* structure version (CATS) */
57	uint32_t	bt_features;	/* feature mask (CATS) */
58};
59
60#define BT_MAGIC_NUMBER_EBSA	0x45425341
61#define BT_MAGIC_NUMBER_CATS	0x43415453
62
63#define BT_BOOT_VERSION_OLD	0
64#define BT_BOOT_VERSION_NEW	1
65
66/* End of cyclone_boot.h */
67