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c3cf06f1a3
All identifiers, regardless of use, that start with two underscores are reserved. This means they can't be used in header guards. The style that this project is now to use the full name of the file in capital letters followed by 'H'. For example, for a file called "uart_example.h", the header guard is UART_EXAMPLE_H. The exceptions are files that are imported from other projects: - CryptoCell driver - dt-bindings folders - zlib headers Change-Id: I50561bf6c88b491ec440d0c8385c74650f3c106e Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
45 lines
1.2 KiB
C
45 lines
1.2 KiB
C
/*
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* Copyright (c) 2015-2017, ARM Limited and Contributors. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#ifndef V2M_FLASH_H
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#define V2M_FLASH_H
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#include <stdint.h>
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/* First bus cycle */
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#define NOR_CMD_READ_ARRAY 0xFF
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#define NOR_CMD_READ_ID_CODE 0x90
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#define NOR_CMD_READ_QUERY 0x98
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#define NOR_CMD_READ_STATUS_REG 0x70
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#define NOR_CMD_CLEAR_STATUS_REG 0x50
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#define NOR_CMD_WRITE_TO_BUFFER 0xE8
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#define NOR_CMD_WORD_PROGRAM 0x40
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#define NOR_CMD_BLOCK_ERASE 0x20
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#define NOR_CMD_LOCK_UNLOCK 0x60
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#define NOR_CMD_BLOCK_ERASE_ACK 0xD0
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/* Second bus cycle */
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#define NOR_LOCK_BLOCK 0x01
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#define NOR_UNLOCK_BLOCK 0xD0
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/* Status register bits */
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#define NOR_DWS (1 << 7)
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#define NOR_ESS (1 << 6)
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#define NOR_ES (1 << 5)
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#define NOR_PS (1 << 4)
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#define NOR_VPPS (1 << 3)
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#define NOR_PSS (1 << 2)
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#define NOR_BLS (1 << 1)
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#define NOR_BWS (1 << 0)
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/* Public API */
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void nor_send_cmd(uintptr_t base_addr, unsigned long cmd);
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int nor_word_program(uintptr_t base_addr, unsigned long data);
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int nor_lock(uintptr_t base_addr);
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int nor_unlock(uintptr_t base_addr);
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int nor_erase(uintptr_t base_addr);
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#endif /* V2M_FLASH_H*/
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