xref: /src/sys/arch/powerpc/include/prep_bus.h

/* $NetBSD: prep_bus.h,v 1.2 2007/10/17 19:56:41 garbled Exp $ */

/*-
 * Copyright (c) 2007 The NetBSD Foundation, Inc.
 * All rights reserved.
 *
 * This code is derived from software contributed to The NetBSD Foundation
 * by Tim Rightnour
 *
 * 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.
 * 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 the NetBSD
 *        Foundation, Inc. and its contributors.
 * 4. Neither the name of The NetBSD Foundation nor the names of its
 *    contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
 * ``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 THE FOUNDATION OR CONTRIBUTORS
 * 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.
 */

#ifndef _POWERPC_PREP_BUS_H_
#define _POWERPC_PREP_BUS_H_

#define PREP_BUS_SPACE_IO		0x80000000
#define PREP_BUS_SPACE_MEM		0xC0000000

#define PHYS_TO_BUS_MEM(t,x)		((x) | PREP_BUS_SPACE_IO)
#define BUS_MEM_TO_PHYS(t,x)		((x) & ~PREP_BUS_SPACE_IO)

#define PREP_PHYS_SIZE_IO		0x3f800000
#define PREP_PHYS_SIZE_MEM		0x3f000000
#define PREP_ISA_SIZE_IO		0x00010000
#define PREP_ISA_SIZE_MEM		0x01000000
#define PREP_EISA_SIZE_IO		0x0000f000
#define PREP_EISA_SIZE_MEM		0x3f000000

#define PREP_PHYS_RESVD_START_IO	0x10000
#define PREP_PHYS_RESVD_SIZE_IO		0x7F0000

#ifdef _KERNEL
extern struct powerpc_bus_space prep_io_space_tag;
extern struct powerpc_bus_space genppc_isa_io_space_tag;
extern struct powerpc_bus_space prep_mem_space_tag;
extern struct powerpc_bus_space genppc_isa_mem_space_tag;

#include <machine/powerpc.h>

void prep_bus_space_init(void);
void prep_initppc(u_long, u_long, u_int);
void mem_regions(struct mem_region **, struct mem_region **);
#endif

#endif /* _POWERPC_PREP_BUS_H_ */