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