2 * linux/include/asm-arm/arch-arc/hardware.h
4 * Copyright (C) 1996-1999 Russell King.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
10 * This file contains the hardware definitions of the
11 * Acorn Archimedes/A5000 machines.
14 * 04-04-1998 PJB/RMK Merged arc and a5k versions
16 #ifndef __ASM_HARDWARE_H
17 #define __ASM_HARDWARE_H
19 #include <linux/config.h>
23 * What hardware must be present - these can be tested by the kernel
30 #define VDMA_ALIGNMENT PAGE_SIZE
31 #define VDMA_XFERSIZE 16
37 extern void memc_write(unsigned int reg, unsigned long val);
39 #define video_set_dma(start,end,offset) \
41 memc_write (VDMA_START, (start >> 2)); \
42 memc_write (VDMA_END, (end - VDMA_XFERSIZE) >> 2); \
43 memc_write (VDMA_INIT, (offset >> 2)); \
48 /* Hardware addresses of major areas.
49 * *_START is the physical address
50 * *_SIZE is the size of the region
51 * *_BASE is the virtual address
53 #define IO_START 0x03000000
54 #define IO_SIZE 0x01000000
55 #define IO_BASE 0x03000000
58 * Screen mapping information
60 #define SCREEN_START 0x02000000
61 #define SCREEN_END 0x02078000
62 #define SCREEN_SIZE 0x00078000
63 #define SCREEN_BASE 0x02000000
66 #define EXPMASK_BASE 0x03360000
67 #define IOEB_BASE 0x03350000
68 #define VIDC_BASE 0x03400000
69 #define LATCHA_BASE 0x03250040
70 #define LATCHB_BASE 0x03250018
71 #define IOC_BASE 0x03200000
72 #define FLOPPYDMA_BASE 0x0302a000
73 #define PCIO_BASE 0x03010000
75 // FIXME - are the below correct?
76 #define PODSLOT_IOC0_BASE 0x03240000
77 #define PODSLOT_IOC_SIZE (1 << 14)
78 #define PODSLOT_MEMC_BASE 0x03000000
79 #define PODSLOT_MEMC_SIZE (1 << 14)
81 #define vidc_writel(val) __raw_writel(val, VIDC_BASE)
86 * for use with inb/outb
88 #define IOEB_VID_CTL (IOEB_BASE + 0x48)
89 #define IOEB_PRESENT (IOEB_BASE + 0x50)
90 #define IOEB_PSCLR (IOEB_BASE + 0x58)
91 #define IOEB_MONTYPE (IOEB_BASE + 0x70)
93 //FIXME - These adresses are weird - ISTR some weirdo address shifting stuff was going on here...
94 #define IO_EC_IOC_BASE 0x80090000
95 #define IO_EC_MEMC_BASE 0x80000000
97 #ifdef CONFIG_ARCH_ARC
99 #define WD1973_BASE 0x03290000
100 #define WD1973_LATCH 0x03350000
101 #define Z8530_BASE 0x032b0008
102 #define SCSI_BASE 0x03100000
107 #define EXPMASK_STATUS (EXPMASK_BASE + 0x00)
108 #define EXPMASK_ENABLE (EXPMASK_BASE + 0x04)