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/*
* Copyright (c) 2015-2017, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#ifndef V2M_FLASH_H
#define V2M_FLASH_H
#include <stdint.h>
/* First bus cycle */
#define NOR_CMD_READ_ARRAY 0xFF
#define NOR_CMD_READ_ID_CODE 0x90
#define NOR_CMD_READ_QUERY 0x98
#define NOR_CMD_READ_STATUS_REG 0x70
#define NOR_CMD_CLEAR_STATUS_REG 0x50
#define NOR_CMD_WRITE_TO_BUFFER 0xE8
#define NOR_CMD_WORD_PROGRAM 0x40
#define NOR_CMD_BLOCK_ERASE 0x20
#define NOR_CMD_LOCK_UNLOCK 0x60
#define NOR_CMD_BLOCK_ERASE_ACK 0xD0
/* Second bus cycle */
#define NOR_LOCK_BLOCK 0x01
#define NOR_UNLOCK_BLOCK 0xD0
/* Status register bits */
#define NOR_DWS (1 << 7)
#define NOR_ESS (1 << 6)
#define NOR_ES (1 << 5)
#define NOR_PS (1 << 4)
#define NOR_VPPS (1 << 3)
#define NOR_PSS (1 << 2)
#define NOR_BLS (1 << 1)
#define NOR_BWS (1 << 0)
/* Public API */
void nor_send_cmd(uintptr_t base_addr, unsigned long cmd);
int nor_word_program(uintptr_t base_addr, unsigned long data);
int nor_lock(uintptr_t base_addr);
int nor_unlock(uintptr_t base_addr);
int nor_erase(uintptr_t base_addr);
#endif /* V2M_FLASH_H*/
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