1/*  *********************************************************************
2    *  Broadcom Common Firmware Environment (CFE)
3    *
4    *  Physical memory peek/poke routines	File: lib_physio.h
5    *
6    *  Little stub routines to allow access to arbitrary physical
7    *  addresses.  In most cases this should not be needed, as
8    *  many physical addresses are within kseg1, but this handles
9    *  the cases that are not automagically, so we don't need
10    *  to mess up the code with icky macros and such.
11    *
12    *  Author:  Mitch Lichtenberg
13    *
14    *********************************************************************
15    *
16    *  Copyright 2000,2001,2002,2003
17    *  Broadcom Corporation. All rights reserved.
18    *
19    *  This software is furnished under license and may be used and
20    *  copied only in accordance with the following terms and
21    *  conditions.  Subject to these conditions, you may download,
22    *  copy, install, use, modify and distribute modified or unmodified
23    *  copies of this software in source and/or binary form.  No title
24    *  or ownership is transferred hereby.
25    *
26    *  1) Any source code used, modified or distributed must reproduce
27    *     and retain this copyright notice and list of conditions
28    *     as they appear in the source file.
29    *
30    *  2) No right is granted to use any trade name, trademark, or
31    *     logo of Broadcom Corporation.  The "Broadcom Corporation"
32    *     name may not be used to endorse or promote products derived
33    *     from this software without the prior written permission of
34    *     Broadcom Corporation.
35    *
36    *  3) THIS SOFTWARE IS PROVIDED "AS-IS" AND ANY EXPRESS OR
37    *     IMPLIED WARRANTIES, INCLUDING BUT NOT LIMITED TO, ANY IMPLIED
38    *     WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
39    *     PURPOSE, OR NON-INFRINGEMENT ARE DISCLAIMED. IN NO EVENT
40    *     SHALL BROADCOM BE LIABLE FOR ANY DAMAGES WHATSOEVER, AND IN
41    *     PARTICULAR, BROADCOM SHALL NOT BE LIABLE FOR DIRECT, INDIRECT,
42    *     INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
43    *     (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
44    *     GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
45    *     BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
46    *     OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
47    *     TORT (INCLUDING NEGLIGENCE OR OTHERWISE), EVEN IF ADVISED OF
48    *     THE POSSIBILITY OF SUCH DAMAGE.
49    ********************************************************************* */
50
51
52#ifndef _LIB_PHYSIO_H
53#define _LIB_PHYSIO_H
54
55typedef long physaddr_t;   /* 32-bit-only processors can't have >32bit pa's */
56
57extern void phys_write8(physaddr_t a,uint8_t b);
58extern void phys_write16(physaddr_t a,uint16_t b);
59extern void phys_write32(physaddr_t a,uint32_t b);
60extern void phys_write64(physaddr_t a,uint64_t b);
61extern uint8_t phys_read8(physaddr_t a);
62extern uint16_t phys_read16(physaddr_t a);
63extern uint32_t phys_read32(physaddr_t a);
64extern uint64_t phys_read64(physaddr_t a);
65
66extern void phys_write16_swapped(physaddr_t a,uint16_t b);
67extern void phys_write32_swapped(physaddr_t a,uint32_t b);
68extern uint16_t phys_read16_swapped(physaddr_t a);
69extern uint32_t phys_read32_swapped(physaddr_t a);
70
71#endif
72