2 * arch/arm/mach-sa1100/include/mach/hardware.h
4 * Copyright (C) 1998 Nicolas Pitre <nico@fluxnic.net>
6 * This file contains the hardware definitions for SA1100 architecture
8 * 2000/05/23 John Dorsey <john+@cs.cmu.edu>
9 * Definitions for SA1111 added.
12 #ifndef __ASM_ARCH_HARDWARE_H
13 #define __ASM_ARCH_HARDWARE_H
16 #define UNCACHEABLE_ADDR 0xfa050000 /* ICIP */
20 * SA1100 internal I/O mappings
22 * We have the following mapping:
30 #define VIO_BASE 0xf8000000 /* virtual start of IO space */
31 #define VIO_SHIFT 3 /* x = IO space shrink power */
32 #define PIO_START 0x80000000 /* physical start of IO space */
35 IOMEM( (((x)&0x00ffffff) | (((x)&0x30000000)>>VIO_SHIFT)) + VIO_BASE )
37 ( (((x)&0x00ffffff) | (((x)&(0x30000000>>VIO_SHIFT))<<VIO_SHIFT)) + PIO_START )
39 #define __MREG(x) IOMEM(io_p2v(x))
43 # define __REG(x) (*((volatile unsigned long __iomem *)io_p2v(x)))
44 # define __PREG(x) (io_v2p((unsigned long)&(x)))
46 static inline unsigned long get_clock_tick_rate(void)
52 # define __REG(x) io_p2v(x)
53 # define __PREG(x) io_v2p(x)
63 #endif /* _ASM_ARCH_HARDWARE_H */