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/*
* 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
#include <linux/config.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
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