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/*
* Copyright (c) 2000-2003, 2005, Juniper Networks, Inc.
* All rights reserved.
* JNPR: am29lv081b.h,v 1.1 2006/08/07 05:38:57 katta
*
* am29lv081b.h -- am29lv081b definitions
*
* Chan Lee, May 2000
*/
// $FreeBSD$
#ifndef __AM29LV081B_H__
#define __AM29LV081B_H__
/*
* Identifiers for the am29lv081b chip
*/
#define AM29L_MAN_ID 0x01
#define AM29L_DEV_ID 0x38
#define AM29L_DEV_ID_OFFSET 0x01
#define AM29L_TIMEOUT 3000 /* 3 seconds in ms */
#define AM29L_ERASE_TIME 30000 /* 30 seconds in ms */
/*
* This is defined for human consumption.
*/
#define AM29L_BANNER "AMD29L081B 8Mb flash"
/*
* Sector definitions.
*/
#define AM29L_SA0 0x00000
#define AM29L_SA1 0x10000
#define AM29L_SA2 0x20000
#define AM29L_SA3 0x30000
#define AM29L_SA4 0x40000
#define AM29L_SA5 0x50000
#define AM29L_SA6 0x60000
#define AM29L_SA7 0x70000
#define AM29L_SA8 0x80000
#define AM29L_SA9 0x90000
#define AM29L_SA10 0xA0000
#define AM29L_SA11 0xB0000
#define AM29L_SA12 0xC0000
#define AM29L_SA13 0xD0000
#define AM29L_SA14 0xE0000
#define AM29L_SA15 0xF0000
#define AM29L_BANK_MASK 0xFFF00000
#define AM29L_SECTOR_MASK 0xFFFF0000
#define AM29L_SECTOR_SIZE 0x10000
#define AM29L_SECTOR_PER_BLK 4
#define AM29L_TOTAL_SECTORS 16
#define AM29L_PROTECT_OFFSET 0x2
/*
* Definitions for the unlock sequence, both
* the address offset and the data definition.
*/
#define AM29L_ULCK_ADDR1 0x555
#define AM29L_ULCK_ADDR2 0x2AA
#define AM29L_ULCK_DATA1 0xAA
#define AM29L_ULCK_DATA2 0x55
/*
* Command definitions for the am29lv081b. Most
* of the following command can only be issue
* after the unlock command sequence.
*/
#define AM29L_CMD_AUTO 0x90
#define AM29L_CMD_BYTE_PROGRAM 0xA0
#define AM29L_CMD_ERASE 0x80
#define AM29L_CMD_ERASE_CHIP 0x10
#define AM29L_CMD_ERASE_SECT 0x30
#define AM29L_CMD_RESET 0xF0
/*
* Masks for get the DQ3, DQ5, DQ6, DQ7 bits.
* All these bits signals the status of the
* command operations.
*/
#define AM29L_DQ2_MASK 0x04
#define AM29L_DQ3_MASK 0x08
#define AM29L_DQ5_MASK 0x20
#define AM29L_DQ6_MASK 0x40
#define AM29L_DQ7_MASK 0x80
#define AM29L_GET_DQ2(data) ((data & AM29L_DQ2_MASK) >> 2)
#define AM29L_GET_DQ3(data) ((data & AM29L_DQ3_MASK) >> 3)
#define AM29L_GET_DQ5(data) ((data & AM29L_DQ5_MASK) >> 5)
#define AM29L_GET_DQ6(data) ((data & AM29L_DQ6_MASK) >> 6)
#define AM29L_GET_DQ7(data) ((data & AM29L_DQ7_MASK) >> 7)
extern void flash_add_amd29l081b (flash_device_t *dev);
static inline u_int32_t
am29f_start_addr_flash(u_int8_t *ptr)
{
return((u_int32_t)ptr & AM29L_SECTOR_MASK);
}
#endif /* __AM29LV081B_H_ */
/* End of file */
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