1178172Simp/*- 2262217Srwatson * Copyright (c) 2013 Robert N. M. Watson 3178172Simp * Copyright (C) 1994 by Rodney W. Grimes, Milwaukie, Oregon 97222 4178172Simp * All rights reserved. 5178172Simp * 6178172Simp * Redistribution and use in source and binary forms, with or without 7178172Simp * modification, are permitted provided that the following conditions 8178172Simp * are met: 9178172Simp * 1. Redistributions of source code must retain the above copyright 10178172Simp * notice, this list of conditions and the following disclaimer as 11178172Simp * the first lines of this file unmodified. 12178172Simp * 2. Redistributions in binary form must reproduce the above copyright 13178172Simp * notice, this list of conditions and the following disclaimer in the 14178172Simp * documentation and/or other materials provided with the distribution. 15178172Simp * 3. All advertising materials mentioning features or use of this software 16178172Simp * must display the following acknowledgement: 17178172Simp * This product includes software developed by Rodney W. Grimes. 18178172Simp * 4. The name of the author may not be used to endorse or promote products 19178172Simp * derived from this software without specific prior written permission. 20178172Simp * 21178172Simp * THIS SOFTWARE IS PROVIDED BY RODNEY W. GRIMES ``AS IS'' AND 22178172Simp * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23178172Simp * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24178172Simp * ARE DISCLAIMED. IN NO EVENT SHALL RODNEY W. GRIMES BE LIABLE 25178172Simp * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26178172Simp * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27178172Simp * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28178172Simp * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29178172Simp * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30178172Simp * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31178172Simp * SUCH DAMAGE. 32178172Simp * 33178172Simp * $FreeBSD$ 34178172Simp */ 35178172Simp 36178172Simp#ifndef _MACHINE_BOOTINFO_H_ 37178172Simp#define _MACHINE_BOOTINFO_H_ 38178172Simp 39178172Simp/* Only change the version number if you break compatibility. */ 40262217Srwatson#define BOOTINFO_VERSION 2 41178172Simp 42178172Simp#define MIPS_BOOTINFO_MAGIC 0xCDEACDEA 43178172Simp 44262217Srwatson#if defined(__mips_n32) || defined(__mips_n64) 45262217Srwatsontypedef uint64_t bi_ptr_t; 46262217Srwatson#else 47262217Srwatsontypedef uint32_t bi_ptr_t; 48262217Srwatson#endif 49178172Simp 50178172Simp/* 51178172Simp * A zero bootinfo field often means that there is no info available. 52178172Simp * Flags are used to indicate the validity of fields where zero is a 53178172Simp * normal value. 54178172Simp */ 55178172Simpstruct bootinfo { 56262217Srwatson /* bootinfo meta-data. */ 57262217Srwatson uint32_t bi_version; 58262217Srwatson uint32_t bi_size; 59262217Srwatson 60262217Srwatson /* bootinfo contents. */ 61262217Srwatson uint64_t bi_boot2opts; /* boot2 flags to loader. */ 62262217Srwatson bi_ptr_t bi_kernelname; /* Pointer to name. */ 63262217Srwatson bi_ptr_t bi_nfs_diskless;/* Pointer to NFS data. */ 64262217Srwatson bi_ptr_t bi_dtb; /* Pointer to dtb. */ 65262217Srwatson bi_ptr_t bi_memsize; /* Physical memory size in bytes. */ 66262217Srwatson bi_ptr_t bi_modulep; /* Preloaded modules. */ 67262217Srwatson bi_ptr_t bi_boot_dev_type; /* Boot-device type. */ 68262217Srwatson bi_ptr_t bi_boot_dev_unitptr; /* Boot-device unit/pointer. */ 69178172Simp}; 70178172Simp 71262217Srwatson/* 72262217Srwatson * Possible boot-device types passed from boot2 to loader, loader to kernel. 73262217Srwatson * In most cases, the object pointed to will hold a filesystem; one exception 74262217Srwatson * is BOOTINFO_DEV_TYPE_DRAM, which points to a pre-loaded object (e.g., 75262217Srwatson * loader, kernel). 76262217Srwatson */ 77262217Srwatson#define BOOTINFO_DEV_TYPE_DRAM 0 /* DRAM loader/kernel (ptr). */ 78262217Srwatson#define BOOTINFO_DEV_TYPE_CFI 1 /* CFI flash (unit). */ 79262217Srwatson#define BOOTINFO_DEV_TYPE_SDCARD 2 /* SD card (unit). */ 80262217Srwatson 81178172Simp#ifdef _KERNEL 82178172Simpextern struct bootinfo bootinfo; 83178172Simp#endif 84178172Simp 85178172Simp#endif /* !_MACHINE_BOOTINFO_H_ */ 86