hardware.h

 1/* SPDX-License-Identifier: GPL-2.0 */
 2/*
 3 * arch/arm/mach-sa1100/include/mach/hardware.h
 4 *
 5 * Copyright (C) 1998 Nicolas Pitre <nico@fluxnic.net>
 6 *
 7 * This file contains the hardware definitions for SA1100 architecture
 8 *
 9 * 2000/05/23 John Dorsey <john+@cs.cmu.edu>
10 *      Definitions for SA1111 added.
11 */
12
13#ifndef __ASM_ARCH_HARDWARE_H
14#define __ASM_ARCH_HARDWARE_H
15
16
17#define UNCACHEABLE_ADDR	0xfa050000	/* ICIP */
18
19
20/*
21 * SA1100 internal I/O mappings
22 *
23 * We have the following mapping:
24 *      phys            virt
25 *      80000000        f8000000
26 *      90000000        fa000000
27 *      a0000000        fc000000
28 *      b0000000        fe000000
29 */
30
31#define VIO_BASE        0xf8000000	/* virtual start of IO space */
32#define VIO_SHIFT       3		/* x = IO space shrink power */
33#define PIO_START       0x80000000	/* physical start of IO space */
34
35#define io_p2v( x )             \
36   IOMEM( (((x)&0x00ffffff) | (((x)&0x30000000)>>VIO_SHIFT)) + VIO_BASE )
37#define io_v2p( x )             \
38   ( (((x)&0x00ffffff) | (((x)&(0x30000000>>VIO_SHIFT))<<VIO_SHIFT)) + PIO_START )
39
40#define __MREG(x)	IOMEM(io_p2v(x))
41
42#ifndef __ASSEMBLY__
43
44# define __REG(x)	(*((volatile unsigned long __iomem *)io_p2v(x)))
45# define __PREG(x)	(io_v2p((unsigned long)&(x)))
46
47#else
48
49# define __REG(x)	io_p2v(x)
50# define __PREG(x)	io_v2p(x)
51
52#endif
53
54#include "SA-1100.h"
55
56#endif  /* _ASM_ARCH_HARDWARE_H */