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 45 struct 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