| /* |
| * 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*/ |
