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Diffstat (limited to 'include/asm-arm26/hardware.h')
| -rw-r--r-- | include/asm-arm26/hardware.h | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/include/asm-arm26/hardware.h b/include/asm-arm26/hardware.h new file mode 100644 index 0000000..82fc55e --- /dev/null +++ b/include/asm-arm26/hardware.h @@ -0,0 +1,110 @@ +/* + * 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 |
