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- /* SPDX-License-Identifier: GPL-2.0 */
- /* 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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