| /* | |
| * 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 |