| /* |
| * Copyright (c) 2018 Savoir-Faire Linux. |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| |
| #ifndef __SPI_NOR_H__ |
| #define __SPI_NOR_H__ |
| |
| #include <sys/util.h> |
| |
| #define SPI_NOR_MAX_ID_LEN 3 |
| |
| /* Status register bits */ |
| #define SPI_NOR_WIP_BIT BIT(0) /* Write in progress */ |
| #define SPI_NOR_WEL_BIT BIT(1) /* Write enable latch */ |
| #define SPI_NOR_QE_BIT BIT(6) /* Enable quad mode */ |
| |
| /* Control register bits */ |
| #define SPI_NOR_4BYTE_BIT BIT(5) /* 4B addressing */ |
| |
| /* Flash opcodes */ |
| #define SPI_NOR_CMD_WRSR 0x01 /* Write status register */ |
| #define SPI_NOR_CMD_RDSR 0x05 /* Read status register */ |
| #define SPI_NOR_CMD_WRSR2 0x31 /* Write status register 2 */ |
| #define SPI_NOR_CMD_RDSR2 0x35 /* Read status register 2 */ |
| #define SPI_NOR_CMD_READ 0x03 /* Read data */ |
| #define SPI_NOR_CMD_DREAD 0x3B /* Read data (1-1-2) */ |
| #define SPI_NOR_CMD_QREAD 0x6B /* Read data (1-1-4) */ |
| #define SPI_NOR_CMD_4READ 0xEB /* Read data (1-4-4) */ |
| #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_4PP 0x38 /* Page program (1-4-4) */ |
| #define SPI_NOR_CMD_RDCR 0x15 /* Read control register */ |
| #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 */ |
| #define SPI_NOR_CMD_ULBPR 0x98 /* Global Block Protection Unlock */ |
| #define SPI_NOR_CMD_4BA 0xB7 /* Enter 4-Byte Address Mode */ |
| #define SPI_NOR_CMD_DPD 0xB9 /* Deep Power Down */ |
| #define SPI_NOR_CMD_RDPD 0xAB /* Release from Deep Power Down */ |
| |
| /* Page, sector, and block size are standard, not configurable. */ |
| #define SPI_NOR_PAGE_SIZE 0x0100U |
| #define SPI_NOR_SECTOR_SIZE 0x1000U |
| #define SPI_NOR_BLOCK_SIZE 0x10000U |
| |
| /* Test whether offset is aligned to a given number of bits. */ |
| #define SPI_NOR_IS_ALIGNED(_ofs, _bits) (((_ofs) & BIT_MASK(_bits)) == 0) |
| #define SPI_NOR_IS_SECTOR_ALIGNED(_ofs) SPI_NOR_IS_ALIGNED(_ofs, 12) |
| |
| #endif /*__SPI_NOR_H__*/ |
