/*-
* SPDX-License-Identifier: BSD-4-Clause
*
* Copyright (c) 2013 Robert N. M. Watson
* Copyright (C) 1994 by Rodney W. Grimes, Milwaukie, Oregon 97222
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer as
* the first lines of this file unmodified.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Rodney W. Grimes.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY RODNEY W. GRIMES ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL RODNEY W. GRIMES BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef _MACHINE_BOOTINFO_H_
#define _MACHINE_BOOTINFO_H_
/* Only change the version number if you break compatibility. */
#define BOOTINFO_VERSION 2
#define MIPS_BOOTINFO_MAGIC 0xCDEACDEA
#if defined(__mips_n32) || defined(__mips_n64)
typedef uint64_t bi_ptr_t;
#else
typedef uint32_t bi_ptr_t;
#endif
/*
* A zero bootinfo field often means that there is no info available.
* Flags are used to indicate the validity of fields where zero is a
* normal value.
*/
struct bootinfo {
/* bootinfo meta-data. */
uint32_t bi_version;
uint32_t bi_size;
/* bootinfo contents. */
uint64_t bi_boot2opts; /* boot2 flags to loader. */
bi_ptr_t bi_kernelname; /* Pointer to name. */
bi_ptr_t bi_nfs_diskless;/* Pointer to NFS data. */
bi_ptr_t bi_dtb; /* Pointer to dtb. */
bi_ptr_t bi_memsize; /* Physical memory size in bytes. */
bi_ptr_t bi_modulep; /* Preloaded modules. */
bi_ptr_t bi_boot_dev_type; /* Boot-device type. */
bi_ptr_t bi_boot_dev_unitptr; /* Boot-device unit/pointer. */
};
/*
* Possible boot-device types passed from boot2 to loader, loader to kernel.
* In most cases, the object pointed to will hold a filesystem; one exception
* is BOOTINFO_DEV_TYPE_DRAM, which points to a pre-loaded object (e.g.,
* loader, kernel).
*/
#define BOOTINFO_DEV_TYPE_DRAM 0 /* DRAM loader/kernel (ptr). */
#define BOOTINFO_DEV_TYPE_CFI 1 /* CFI flash (unit). */
#define BOOTINFO_DEV_TYPE_SDCARD 2 /* SD card (unit). */
#ifdef _KERNEL
extern struct bootinfo bootinfo;
#endif
#endif /* !_MACHINE_BOOTINFO_H_ */
