1/* 2** asm-m68k/amigayle.h -- This header defines the registers of the gayle chip 3** found on the Amiga 1200 4** This information was found by disassembling card.resource, 5** so the definitions may not be 100% correct 6** anyone has an official doc ? 7** 8** Copyright 1997 by Alain Malek 9** 10** This file is subject to the terms and conditions of the GNU General Public 11** License. See the file COPYING in the main directory of this archive 12** for more details. 13** 14** Created: 11/28/97 by Alain Malek 15*/ 16 17#ifndef _M68K_AMIGAYLE_H_ 18#define _M68K_AMIGAYLE_H_ 19 20#include <linux/types.h> 21#include <asm/amigahw.h> 22 23/* memory layout */ 24 25#define GAYLE_RAM (0x600000+zTwoBase) 26#define GAYLE_RAMSIZE (0x400000) 27#define GAYLE_ATTRIBUTE (0xa00000+zTwoBase) 28#define GAYLE_ATTRIBUTESIZE (0x020000) 29#define GAYLE_IO (0xa20000+zTwoBase) /* 16bit and even 8bit registers */ 30#define GAYLE_IOSIZE (0x010000) 31#define GAYLE_IO_8BITODD (0xa30000+zTwoBase) /* odd 8bit registers */ 32 33/* offset for accessing odd IO registers */ 34#define GAYLE_ODD (GAYLE_IO_8BITODD-GAYLE_IO-1) 35 36/* GAYLE registers */ 37 38struct GAYLE { 39 u_char cardstatus; 40 u_char pad0[0x1000-1]; 41 42 u_char intreq; 43 u_char pad1[0x1000-1]; 44 45 u_char inten; 46 u_char pad2[0x1000-1]; 47 48 u_char config; 49 u_char pad3[0x1000-1]; 50}; 51 52#define GAYLE_ADDRESS (0xda8000) /* gayle main registers base address */ 53 54#define GAYLE_RESET (0xa40000) /* write 0x00 to start reset, 55 read 1 byte to stop reset */ 56 57#define gayle (*(volatile struct GAYLE *)(zTwoBase+GAYLE_ADDRESS)) 58#define gayle_reset (*(volatile u_char *)(zTwoBase+GAYLE_RESET)) 59 60#define gayle_attribute ((volatile u_char *)(GAYLE_ATTRIBUTE)) 61 62#if 0 63#define gayle_inb(a) readb( GAYLE_IO+(a)+(((a)&1)*GAYLE_ODD) ) 64#define gayle_outb(v,a) writeb( v, GAYLE_IO+(a)+(((a)&1)*GAYLE_ODD) ) 65 66#define gayle_inw(a) readw( GAYLE_IO+(a) ) 67#define gayle_outw(v,a) writew( v, GAYLE_IO+(a) ) 68#endif 69 70/* GAYLE_CARDSTATUS bit def */ 71 72#define GAYLE_CS_CCDET 0x40 /* credit card detect */ 73#define GAYLE_CS_BVD1 0x20 /* battery voltage detect 1 */ 74#define GAYLE_CS_SC 0x20 /* credit card status change */ 75#define GAYLE_CS_BVD2 0x10 /* battery voltage detect 2 */ 76#define GAYLE_CS_DA 0x10 /* digital audio */ 77#define GAYLE_CS_WR 0x08 /* write enable (1 == enabled) */ 78#define GAYLE_CS_BSY 0x04 /* credit card busy */ 79#define GAYLE_CS_IRQ 0x04 /* interrupt request */ 80 81/* GAYLE_IRQ bit def */ 82 83#define GAYLE_IRQ_IDE 0x80 84#define GAYLE_IRQ_CCDET 0x40 85#define GAYLE_IRQ_BVD1 0x20 86#define GAYLE_IRQ_SC 0x20 87#define GAYLE_IRQ_BVD2 0x10 88#define GAYLE_IRQ_DA 0x10 89#define GAYLE_IRQ_WR 0x08 90#define GAYLE_IRQ_BSY 0x04 91#define GAYLE_IRQ_IRQ 0x04 92#define GAYLE_IRQ_IDEACK1 0x02 93#define GAYLE_IRQ_IDEACK0 0x01 94 95/* GAYLE_CONFIG bit def 96 (bit 0-1 for program voltage, bit 2-3 for access speed */ 97 98#define GAYLE_CFG_0V 0x00 99#define GAYLE_CFG_5V 0x01 100#define GAYLE_CFG_12V 0x02 101 102#define GAYLE_CFG_100NS 0x08 103#define GAYLE_CFG_150NS 0x04 104#define GAYLE_CFG_250NS 0x00 105#define GAYLE_CFG_720NS 0x0c 106 107struct gayle_ide_platform_data { 108 unsigned long base; 109 unsigned long irqport; 110 int explicit_ack; /* A1200 IDE needs explicit ack */ 111}; 112 113#endif /* asm-m68k/amigayle.h */ 114