Release 4.7 drivers/atm/zeprom.h

/* drivers/atm/zeprom.h - ZeitNet ZN122x EEPROM (NM93C46) declarations */

/* Written 1995,1996 by Werner Almesberger, EPFL LRC */


#ifndef DRIVER_ATM_ZEPROM_H

#define DRIVER_ATM_ZEPROM_H

/* Different versions use different control registers */


#define ZEPROM_V1_REG	PCI_VENDOR_ID	
/* PCI register */

#define ZEPROM_V2_REG	0x40

/* Bits in contol register */


#define ZEPROM_SK	0x80000000	
/* strobe (probably on raising edge) */

#define ZEPROM_CS	0x40000000	
/* Chip Select */

#define ZEPROM_DI	0x20000000	
/* Data Input */

#define ZEPROM_DO	0x10000000	
/* Data Output */


#define ZEPROM_SIZE	32		
/* 32 bytes */

#define ZEPROM_V1_ESI_OFF 24		
/* ESI offset in EEPROM (V1) */

#define ZEPROM_V2_ESI_OFF 4		
/* ESI offset in EEPROM (V2) */


#define ZEPROM_CMD_LEN	3		
/* commands are three bits */

#define ZEPROM_ADDR_LEN	6		
/* addresses are six bits */

/* Commands (3 bits) */


#define ZEPROM_CMD_READ	6

/* No other commands are needed. */

#endif
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