110 строки
2.7 KiB
C
110 строки
2.7 KiB
C
/*
|
|
* linux/include/asm-arm/arch-arc/hardware.h
|
|
*
|
|
* Copyright (C) 1996-1999 Russell King.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*
|
|
* This file contains the hardware definitions of the
|
|
* Acorn Archimedes/A5000 machines.
|
|
*
|
|
* Modifications:
|
|
* 04-04-1998 PJB/RMK Merged arc and a5k versions
|
|
*/
|
|
#ifndef __ASM_HARDWARE_H
|
|
#define __ASM_HARDWARE_H
|
|
|
|
|
|
|
|
/*
|
|
* What hardware must be present - these can be tested by the kernel
|
|
* source.
|
|
*/
|
|
#define HAS_IOC
|
|
#define HAS_MEMC
|
|
#define HAS_VIDC
|
|
|
|
#define VDMA_ALIGNMENT PAGE_SIZE
|
|
#define VDMA_XFERSIZE 16
|
|
#define VDMA_INIT 0
|
|
#define VDMA_START 1
|
|
#define VDMA_END 2
|
|
|
|
#ifndef __ASSEMBLY__
|
|
extern void memc_write(unsigned int reg, unsigned long val);
|
|
|
|
#define video_set_dma(start,end,offset) \
|
|
do { \
|
|
memc_write (VDMA_START, (start >> 2)); \
|
|
memc_write (VDMA_END, (end - VDMA_XFERSIZE) >> 2); \
|
|
memc_write (VDMA_INIT, (offset >> 2)); \
|
|
} while (0)
|
|
#endif
|
|
|
|
|
|
/* Hardware addresses of major areas.
|
|
* *_START is the physical address
|
|
* *_SIZE is the size of the region
|
|
* *_BASE is the virtual address
|
|
*/
|
|
#define IO_START 0x03000000
|
|
#define IO_SIZE 0x01000000
|
|
#define IO_BASE 0x03000000
|
|
|
|
/*
|
|
* Screen mapping information
|
|
*/
|
|
#define SCREEN_START 0x02000000
|
|
#define SCREEN_END 0x02078000
|
|
#define SCREEN_SIZE 0x00078000
|
|
#define SCREEN_BASE 0x02000000
|
|
|
|
|
|
#define EXPMASK_BASE 0x03360000
|
|
#define IOEB_BASE 0x03350000
|
|
#define VIDC_BASE 0x03400000
|
|
#define LATCHA_BASE 0x03250040
|
|
#define LATCHB_BASE 0x03250018
|
|
#define IOC_BASE 0x03200000
|
|
#define FLOPPYDMA_BASE 0x0302a000
|
|
#define PCIO_BASE 0x03010000
|
|
|
|
// FIXME - are the below correct?
|
|
#define PODSLOT_IOC0_BASE 0x03240000
|
|
#define PODSLOT_IOC_SIZE (1 << 14)
|
|
#define PODSLOT_MEMC_BASE 0x03000000
|
|
#define PODSLOT_MEMC_SIZE (1 << 14)
|
|
|
|
#define vidc_writel(val) __raw_writel(val, VIDC_BASE)
|
|
|
|
#ifndef __ASSEMBLY__
|
|
|
|
/*
|
|
* for use with inb/outb
|
|
*/
|
|
#define IOEB_VID_CTL (IOEB_BASE + 0x48)
|
|
#define IOEB_PRESENT (IOEB_BASE + 0x50)
|
|
#define IOEB_PSCLR (IOEB_BASE + 0x58)
|
|
#define IOEB_MONTYPE (IOEB_BASE + 0x70)
|
|
|
|
//FIXME - These adresses are weird - ISTR some weirdo address shifting stuff was going on here...
|
|
#define IO_EC_IOC_BASE 0x80090000
|
|
#define IO_EC_MEMC_BASE 0x80000000
|
|
|
|
#ifdef CONFIG_ARCH_ARC
|
|
/* A680 hardware */
|
|
#define WD1973_BASE 0x03290000
|
|
#define WD1973_LATCH 0x03350000
|
|
#define Z8530_BASE 0x032b0008
|
|
#define SCSI_BASE 0x03100000
|
|
#endif
|
|
|
|
#endif
|
|
|
|
#define EXPMASK_STATUS (EXPMASK_BASE + 0x00)
|
|
#define EXPMASK_ENABLE (EXPMASK_BASE + 0x04)
|
|
|
|
#endif
|