1*91f16700Schasinglulu /* 2*91f16700Schasinglulu * Copyright (c) 2015-2017, ARM Limited and Contributors. All rights reserved. 3*91f16700Schasinglulu * 4*91f16700Schasinglulu * SPDX-License-Identifier: BSD-3-Clause 5*91f16700Schasinglulu */ 6*91f16700Schasinglulu 7*91f16700Schasinglulu #ifndef V2M_FLASH_H 8*91f16700Schasinglulu #define V2M_FLASH_H 9*91f16700Schasinglulu 10*91f16700Schasinglulu #include <stdint.h> 11*91f16700Schasinglulu 12*91f16700Schasinglulu /* First bus cycle */ 13*91f16700Schasinglulu #define NOR_CMD_READ_ARRAY 0xFF 14*91f16700Schasinglulu #define NOR_CMD_READ_ID_CODE 0x90 15*91f16700Schasinglulu #define NOR_CMD_READ_QUERY 0x98 16*91f16700Schasinglulu #define NOR_CMD_READ_STATUS_REG 0x70 17*91f16700Schasinglulu #define NOR_CMD_CLEAR_STATUS_REG 0x50 18*91f16700Schasinglulu #define NOR_CMD_WRITE_TO_BUFFER 0xE8 19*91f16700Schasinglulu #define NOR_CMD_WORD_PROGRAM 0x40 20*91f16700Schasinglulu #define NOR_CMD_BLOCK_ERASE 0x20 21*91f16700Schasinglulu #define NOR_CMD_LOCK_UNLOCK 0x60 22*91f16700Schasinglulu #define NOR_CMD_BLOCK_ERASE_ACK 0xD0 23*91f16700Schasinglulu 24*91f16700Schasinglulu /* Second bus cycle */ 25*91f16700Schasinglulu #define NOR_LOCK_BLOCK 0x01 26*91f16700Schasinglulu #define NOR_UNLOCK_BLOCK 0xD0 27*91f16700Schasinglulu 28*91f16700Schasinglulu /* Status register bits */ 29*91f16700Schasinglulu #define NOR_DWS (1 << 7) 30*91f16700Schasinglulu #define NOR_ESS (1 << 6) 31*91f16700Schasinglulu #define NOR_ES (1 << 5) 32*91f16700Schasinglulu #define NOR_PS (1 << 4) 33*91f16700Schasinglulu #define NOR_VPPS (1 << 3) 34*91f16700Schasinglulu #define NOR_PSS (1 << 2) 35*91f16700Schasinglulu #define NOR_BLS (1 << 1) 36*91f16700Schasinglulu #define NOR_BWS (1 << 0) 37*91f16700Schasinglulu 38*91f16700Schasinglulu /* Public API */ 39*91f16700Schasinglulu void nor_send_cmd(uintptr_t base_addr, unsigned long cmd); 40*91f16700Schasinglulu int nor_word_program(uintptr_t base_addr, unsigned long data); 41*91f16700Schasinglulu int nor_lock(uintptr_t base_addr); 42*91f16700Schasinglulu int nor_unlock(uintptr_t base_addr); 43*91f16700Schasinglulu int nor_erase(uintptr_t base_addr); 44*91f16700Schasinglulu 45*91f16700Schasinglulu #endif /* V2M_FLASH_H*/ 46