84 lines
2.1 KiB
C
84 lines
2.1 KiB
C
/*
|
|
* linux/include/asm-arm/arch-sa1100/hardware.h
|
|
*
|
|
* Copyright (C) 1998 Nicolas Pitre <nico@cam.org>
|
|
*
|
|
* This file contains the hardware definitions for SA1100 architecture
|
|
*
|
|
* 2000/05/23 John Dorsey <john+@cs.cmu.edu>
|
|
* Definitions for SA1111 added.
|
|
*/
|
|
|
|
#ifndef __ASM_ARCH_HARDWARE_H
|
|
#define __ASM_ARCH_HARDWARE_H
|
|
|
|
#include <linux/config.h>
|
|
|
|
/* Flushing areas */
|
|
#define FLUSH_BASE_PHYS 0xe0000000 /* SA1100 zero bank */
|
|
#define FLUSH_BASE 0xf5000000
|
|
#define FLUSH_BASE_MINICACHE 0xf5800000
|
|
#define UNCACHEABLE_ADDR 0xfa050000
|
|
|
|
|
|
/*
|
|
* We requires absolute addresses i.e. (PCMCIA_IO_0_BASE + 0x3f8) for
|
|
* in*()/out*() macros to be usable for all cases.
|
|
*/
|
|
#define PCIO_BASE 0
|
|
|
|
|
|
/*
|
|
* SA1100 internal I/O mappings
|
|
*
|
|
* We have the following mapping:
|
|
* phys virt
|
|
* 80000000 f8000000
|
|
* 90000000 fa000000
|
|
* a0000000 fc000000
|
|
* b0000000 fe000000
|
|
*/
|
|
|
|
#define VIO_BASE 0xf8000000 /* virtual start of IO space */
|
|
#define VIO_SHIFT 3 /* x = IO space shrink power */
|
|
#define PIO_START 0x80000000 /* physical start of IO space */
|
|
|
|
#define io_p2v( x ) \
|
|
( (((x)&0x00ffffff) | (((x)&0x30000000)>>VIO_SHIFT)) + VIO_BASE )
|
|
#define io_v2p( x ) \
|
|
( (((x)&0x00ffffff) | (((x)&(0x30000000>>VIO_SHIFT))<<VIO_SHIFT)) + PIO_START )
|
|
|
|
#ifndef __ASSEMBLY__
|
|
#include <asm/types.h>
|
|
|
|
#if 0
|
|
# define __REG(x) (*((volatile u32 *)io_p2v(x)))
|
|
#else
|
|
/*
|
|
* This __REG() version gives the same results as the one above, except
|
|
* that we are fooling gcc somehow so it generates far better and smaller
|
|
* assembly code for access to contigous registers. It's a shame that gcc
|
|
* doesn't guess this by itself.
|
|
*/
|
|
typedef struct { volatile u32 offset[4096]; } __regbase;
|
|
# define __REGP(x) ((__regbase *)((x)&~4095))->offset[((x)&4095)>>2]
|
|
# define __REG(x) __REGP(io_p2v(x))
|
|
#endif
|
|
|
|
# define __PREG(x) (io_v2p((u32)&(x)))
|
|
|
|
#else
|
|
|
|
# define __REG(x) io_p2v(x)
|
|
# define __PREG(x) io_v2p(x)
|
|
|
|
#endif
|
|
|
|
#include "SA-1100.h"
|
|
|
|
#ifdef CONFIG_SA1101
|
|
#include "SA-1101.h"
|
|
#endif
|
|
|
|
#endif /* _ASM_ARCH_HARDWARE_H */
|