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/* *********************************************************************
* Broadcom Common Firmware Environment (CFE)
*
* Physical memory peek/poke routines File: lib_physio.h
*
* Little stub routines to allow access to arbitrary physical
* addresses. In most cases this should not be needed, as
* many physical addresses are within kseg1, but this handles
* the cases that are not automagically, so we don't need
* to mess up the code with icky macros and such.
*
* Author: Mitch Lichtenberg (mpl@broadcom.com)
*
*********************************************************************
*
* Copyright 2000,2001,2002,2003
* Broadcom Corporation. All rights reserved.
*
* This software is furnished under license and may be used and
* copied only in accordance with the following terms and
* conditions. Subject to these conditions, you may download,
* copy, install, use, modify and distribute modified or unmodified
* copies of this software in source and/or binary form. No title
* or ownership is transferred hereby.
*
* 1) Any source code used, modified or distributed must reproduce
* and retain this copyright notice and list of conditions
* as they appear in the source file.
*
* 2) No right is granted to use any trade name, trademark, or
* logo of Broadcom Corporation. The "Broadcom Corporation"
* name may not be used to endorse or promote products derived
* from this software without the prior written permission of
* Broadcom Corporation.
*
* 3) THIS SOFTWARE IS PROVIDED "AS-IS" AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING BUT NOT LIMITED TO, ANY IMPLIED
* WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
* PURPOSE, OR NON-INFRINGEMENT ARE DISCLAIMED. IN NO EVENT
* SHALL BROADCOM BE LIABLE FOR ANY DAMAGES WHATSOEVER, AND IN
* PARTICULAR, BROADCOM SHALL NOT BE LIABLE FOR 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), EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
********************************************************************* */
#ifndef _LIB_PHYSIO_H
#define _LIB_PHYSIO_H
//#ifndef _SB_MIPS_H
//#include "sbmips.h"
//#endif
/*
* If __long64 we can do this via macros. Otherwise, call
* the magic functions.
*/
#if __long64
typedef long physaddr_t;
#define _PHYSADDR_T_DEFINED_
/*#define __UNCADDRX(x) PHYS_TO_XKSEG_UNCACHED(x)*/
#define __UNCADDRX(x) (((physaddr_t)(x))|0x9000000000000000)
#define phys_write8(a,b) *((volatile uint8_t *) __UNCADDRX(a)) = (b)
#define phys_write16(a,b) *((volatile uint16_t *) __UNCADDRX(a)) = (b)
#define phys_write32(a,b) *((volatile uint32_t *) __UNCADDRX(a)) = (b)
#define phys_write64(a,b) *((volatile uint64_t *) __UNCADDRX(a)) = (b)
#define phys_read8(a) *((volatile uint8_t *) __UNCADDRX(a))
#define phys_read16(a) *((volatile uint16_t *) __UNCADDRX(a))
#define phys_read32(a) *((volatile uint32_t *) __UNCADDRX(a))
#define phys_read64(a) *((volatile uint64_t *) __UNCADDRX(a))
#else /* not __long64 */
#ifdef _MIPSREGS32_
typedef long physaddr_t; /* 32-bit-only processors can't have >32bit pa's */
#else
typedef long long physaddr_t; /* Otherwise, they might. */
#endif
extern void phys_write8(physaddr_t a,uint8_t b);
extern void phys_write16(physaddr_t a,uint16_t b);
extern void phys_write32(physaddr_t a,uint32_t b);
extern void phys_write64(physaddr_t a,uint64_t b);
extern uint8_t phys_read8(physaddr_t a);
extern uint16_t phys_read16(physaddr_t a);
extern uint32_t phys_read32(physaddr_t a);
extern uint64_t phys_read64(physaddr_t a);
#endif
#endif
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