| /* |
| * Copyright (c) 2018 Savoir-Faire Linux. |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| |
| #ifndef __SPI_NOR_H__ |
| #define __SPI_NOR_H__ |
| |
| #include <misc/util.h> |
| |
| #define SPI_NOR_MAX_ID_LEN 3 |
| |
| struct spi_nor_config { |
| u8_t id[SPI_NOR_MAX_ID_LEN]; |
| u32_t page_size; |
| u32_t sector_size; |
| u32_t n_sectors; |
| }; |
| |
| /* Status register bits */ |
| #define SPI_NOR_WIP_BIT BIT(0) /* Write in progress */ |
| #define SPI_NOR_WEL_BIT BIT(1) /* Write enable latch */ |
| |
| /* Flash opcodes */ |
| #define SPI_NOR_CMD_WRSR 0x01 /* Write status register */ |
| #define SPI_NOR_CMD_RDSR 0x05 /* Read status register */ |
| #define SPI_NOR_CMD_READ 0x03 /* Read data */ |
| #define SPI_NOR_CMD_WREN 0x06 /* Write enable */ |
| #define SPI_NOR_CMD_WRDI 0x04 /* Write disable */ |
| #define SPI_NOR_CMD_PP 0x02 /* Page program */ |
| #define SPI_NOR_CMD_SE 0x20 /* Sector erase */ |
| #define SPI_NOR_CMD_BE_32K 0x52 /* Block erase 32KB */ |
| #define SPI_NOR_CMD_BE 0xD8 /* Block erase */ |
| #define SPI_NOR_CMD_CE 0xC7 /* Chip erase */ |
| #define SPI_NOR_CMD_RDID 0x9F /* Read JEDEC ID */ |
| |
| #endif /*__SPI_NOR_H__*/ |