linux/mtd/spi-nor.h

1 /* SPDX-License-Identifier: GPL-2.0+ */
11 #include <linux/spi/spi-mem.h>
18  * requires a 4-byte (32-bit) address.
22 #define SPINOR_OP_WRDI		0x04	/* Write disable */
23 #define SPINOR_OP_WREN		0x06	/* Write enable */
25 #define SPINOR_OP_WRSR		0x01	/* Write status register 1 byte */
27 #define SPINOR_OP_WRSR2		0x3e	/* Write status register 2 */
53 /* 4-byte address opcodes - used on Spansion and some Macronix flashes. */
71 /* Double Transfer Rate opcodes - defined in JEDEC JESD216B. */
85 #define SPINOR_OP_EN4B		0xb7	/* Enter 4-byte mode */
86 #define SPINOR_OP_EX4B		0xe9	/* Exit 4-byte mode */
89 #define SPINOR_OP_BRWR		0x17	/* Bank register write */
93 #define SPINOR_OP_WD_EVCR      0x61    /* Write EVCR register */
101 #define SR_WIP			BIT(0)	/* Write in progress */
102 #define SR_WEL			BIT(1)	/* Write enable latch */
104 #define SR_BP0			BIT(2)	/* Block protect 0 */
105 #define SR_BP1			BIT(3)	/* Block protect 1 */
106 #define SR_BP2			BIT(4)	/* Block protect 2 */
107 #define SR_BP3			BIT(5)	/* Block protect 3 */
108 #define SR_TB_BIT5		BIT(5)	/* Top/Bottom protect */
109 #define SR_BP3_BIT6		BIT(6)	/* Block protect 3 */
110 #define SR_TB_BIT6		BIT(6)	/* Top/Bottom protect */
111 #define SR_SRWD			BIT(7)	/* SR write protect */
207  * struct spi_nor_hwcaps - Structure for describing the hardware capabilies
250  * legacy SPI 1-1-1 protocol.
291  * struct spi_nor_controller_ops - SPI NOR controller driver specific
294  *			read/write/erase/lock/unlock operations.
296  *			read/write/erase/lock/unlock operations.
298  * @write_reg:		write data to the register.
300  * @write:		write data to the SPI NOR.
313 	ssize_t (*write)(struct spi_nor *nor, loff_t to, size_t len,  member
319  * enum spi_nor_cmd_ext - describes the command opcode extension in DTR mode
325  *		     combine to form a 16-bit opcode.
343  * struct spi_nor - Structure for defining the SPI NOR layer
345  * @lock:		the lock for the read/write/erase/lock/unlock operations
346  * @rww:		Read-While-Write (RWW) sync lock
355  *                      layer is not DMA-able
366  * @sst_write_second:	used by the SST write operation
370  * @write_proto:	the SPI protocol for write operations
375  * @params:		[FLASH-SPECIFIC] SPI NOR flash parameters and settings.
428 	mtd_set_of_node(&nor->mtd, np);  in spi_nor_set_flash_node()
433 	return mtd_get_of_node(&nor->mtd);  in spi_nor_get_flash_node()
437  * spi_nor_scan() - scan the SPI NOR