/* * 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