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arch/m68k/include/asm/amigayle.h 3.19 KB
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1da177e4c   Linus Torvalds   Linux-2.6.12-rc2 
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  /*
  ** asm-m68k/amigayle.h -- This header defines the registers of the gayle chip
  **                        found on the Amiga 1200
  **                        This information was found by disassembling card.resource,
  **                        so the definitions may not be 100% correct
  **                        anyone has an official doc ?
  **
  ** Copyright 1997 by Alain Malek
  **
  ** This file is subject to the terms and conditions of the GNU General Public
  ** License.  See the file COPYING in the main directory of this archive
  ** for more details.
  **
  ** Created: 11/28/97 by Alain Malek
  */
  
  #ifndef _M68K_AMIGAYLE_H_
  #define _M68K_AMIGAYLE_H_
  
  #include <linux/types.h>
  #include <asm/amigahw.h>
  
  /* memory layout */
  
  #define GAYLE_RAM		(0x600000+zTwoBase)
  #define GAYLE_RAMSIZE		(0x400000)
  #define GAYLE_ATTRIBUTE		(0xa00000+zTwoBase)
  #define GAYLE_ATTRIBUTESIZE	(0x020000)
  #define GAYLE_IO		(0xa20000+zTwoBase)	/* 16bit and even 8bit registers */
  #define GAYLE_IOSIZE		(0x010000)
  #define GAYLE_IO_8BITODD	(0xa30000+zTwoBase)	/* odd 8bit registers */
  
  /* offset for accessing odd IO registers */
  #define GAYLE_ODD		(GAYLE_IO_8BITODD-GAYLE_IO-1)
  
  /* GAYLE registers */
  
  struct GAYLE {
  	u_char cardstatus;
  	u_char pad0[0x1000-1];
  
  	u_char intreq;
  	u_char pad1[0x1000-1];
  
  	u_char inten;
  	u_char pad2[0x1000-1];
  
  	u_char config;
  	u_char pad3[0x1000-1];
  };
  
  #define GAYLE_ADDRESS	(0xda8000)	/* gayle main registers base address */
  
  #define GAYLE_RESET	(0xa40000)	/* write 0x00 to start reset,
                                             read 1 byte to stop reset */
  
  #define gayle (*(volatile struct GAYLE *)(zTwoBase+GAYLE_ADDRESS))
  #define gayle_reset (*(volatile u_char *)(zTwoBase+GAYLE_RESET))
  
  #define gayle_attribute ((volatile u_char *)(GAYLE_ATTRIBUTE))
  
  #if 0
  #define gayle_inb(a) readb( GAYLE_IO+(a)+(((a)&1)*GAYLE_ODD) )
  #define gayle_outb(v,a) writeb( v, GAYLE_IO+(a)+(((a)&1)*GAYLE_ODD) )
  
  #define gayle_inw(a) readw( GAYLE_IO+(a) )
  #define gayle_outw(v,a) writew( v, GAYLE_IO+(a) )
  #endif
  
  /* GAYLE_CARDSTATUS bit def */
  
  #define GAYLE_CS_CCDET		0x40	/* credit card detect */
  #define GAYLE_CS_BVD1		0x20	/* battery voltage detect 1 */
  #define GAYLE_CS_SC		0x20	/* credit card status change */
  #define GAYLE_CS_BVD2		0x10	/* battery voltage detect 2 */
  #define GAYLE_CS_DA		0x10	/* digital audio */
  #define GAYLE_CS_WR		0x08	/* write enable (1 == enabled) */
  #define GAYLE_CS_BSY		0x04	/* credit card busy */
  #define GAYLE_CS_IRQ		0x04	/* interrupt request */
  
  /* GAYLE_IRQ bit def */
  
  #define GAYLE_IRQ_IDE		0x80
  #define GAYLE_IRQ_CCDET		0x40
  #define GAYLE_IRQ_BVD1		0x20
  #define GAYLE_IRQ_SC		0x20
  #define GAYLE_IRQ_BVD2		0x10
  #define GAYLE_IRQ_DA		0x10
  #define GAYLE_IRQ_WR		0x08
  #define GAYLE_IRQ_BSY		0x04
  #define GAYLE_IRQ_IRQ		0x04
  #define GAYLE_IRQ_IDEACK1	0x02
  #define GAYLE_IRQ_IDEACK0	0x01
  
  /* GAYLE_CONFIG bit def
     (bit 0-1 for program voltage, bit 2-3 for access speed */
  
  #define GAYLE_CFG_0V		0x00
  #define GAYLE_CFG_5V		0x01
  #define GAYLE_CFG_12V		0x02
  
  #define GAYLE_CFG_100NS		0x08
  #define GAYLE_CFG_150NS		0x04
  #define GAYLE_CFG_250NS		0x00
  #define GAYLE_CFG_720NS		0x0c
9aed23026   Geert Uytterhoeven   m68k: amiga - Ami... 
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  struct gayle_ide_platform_data {
  	unsigned long base;
  	unsigned long irqport;
  	int explicit_ack;	/* A1200 IDE needs explicit ack */
  };
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2 
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  #endif /* asm-m68k/amigayle.h */