Lines Matching +full:spi +full:- +full:nor
1 /* SPDX-License-Identifier: GPL-2.0+ */
12 #include <linux/spi/spi-mem.h>
19 * requires a 4-byte (32-bit) address.
31 #define SPINOR_OP_READ_1_1_2 0x3b /* Read data bytes (Dual Output SPI) */
32 #define SPINOR_OP_READ_1_2_2 0xbb /* Read data bytes (Dual I/O SPI) */
33 #define SPINOR_OP_READ_1_1_4 0x6b /* Read data bytes (Quad Output SPI) */
34 #define SPINOR_OP_READ_1_4_4 0xeb /* Read data bytes (Quad I/O SPI) */
35 #define SPINOR_OP_READ_1_1_8 0x8b /* Read data bytes (Octal Output SPI) */
36 #define SPINOR_OP_READ_1_8_8 0xcb /* Read data bytes (Octal I/O SPI) */
54 /* 4-byte address opcodes - used on Spansion and some Macronix flashes. */
57 #define SPINOR_OP_READ_1_1_2_4B 0x3c /* Read data bytes (Dual Output SPI) */
58 #define SPINOR_OP_READ_1_2_2_4B 0xbc /* Read data bytes (Dual I/O SPI) */
59 #define SPINOR_OP_READ_1_1_4_4B 0x6c /* Read data bytes (Quad Output SPI) */
60 #define SPINOR_OP_READ_1_4_4_4B 0xec /* Read data bytes (Quad I/O SPI) */
61 #define SPINOR_OP_READ_1_1_8_4B 0x7c /* Read data bytes (Octal Output SPI) */
62 #define SPINOR_OP_READ_1_8_8_4B 0xcc /* Read data bytes (Octal I/O SPI) */
72 /* Double Transfer Rate opcodes - defined in JEDEC JESD216B. */
86 #define SPINOR_OP_EN4B 0xb7 /* Enter 4-byte mode */
87 #define SPINOR_OP_EX4B 0xe9 /* Exit 4-byte mode */
131 /* Supported SPI protocols */
208 * struct spi_nor_hwcaps - Structure for describing the hardware capabilies
209 * supported by the SPI controller (bus master).
219 * As a matter of performances, it is relevant to use Octal SPI protocols first,
220 * then Quad SPI protocols before Dual SPI protocols, Fast Read and lastly
250 * Like (Fast) Read capabilities, Octal/Quad SPI protocols are preferred to the
251 * legacy SPI 1-1-1 protocol.
253 * JEDEC/SFDP standard to define them. Also at this moment no SPI flash memory
292 * struct spi_nor_controller_ops - SPI NOR controller driver specific
300 * @read: read data from the SPI NOR.
301 * @write: write data to the SPI NOR.
302 * @erase: erase a sector of the SPI NOR at the offset @offs; if
303 * not provided by the driver, SPI NOR will send the erase
307 int (*prepare)(struct spi_nor *nor);
308 void (*unprepare)(struct spi_nor *nor);
309 int (*read_reg)(struct spi_nor *nor, u8 opcode, u8 *buf, size_t len);
310 int (*write_reg)(struct spi_nor *nor, u8 opcode, const u8 *buf,
313 ssize_t (*read)(struct spi_nor *nor, loff_t from, size_t len, u8 *buf);
314 ssize_t (*write)(struct spi_nor *nor, loff_t to, size_t len,
316 int (*erase)(struct spi_nor *nor, loff_t offs);
320 * enum spi_nor_cmd_ext - describes the command opcode extension in DTR mode
322 * SPI mode
326 * combine to form a 16-bit opcode.
344 * struct spi_nor - Structure for defining the SPI NOR layer
347 * @dev: pointer to an SPI device or an SPI NOR controller device
348 * @spimem: pointer to the SPI memory device
350 * layer is not DMA-able
352 * @info: SPI NOR part JEDEC MFR ID and other info
353 * @manufacturer: SPI NOR manufacturer
360 * @flags: flag options for the current SPI NOR (SNOR_F_*)
362 * @read_proto: the SPI protocol for read operations
363 * @write_proto: the SPI protocol for write operations
364 * @reg_proto: the SPI protocol for read_reg/write_reg/erase operations
367 * @controller_ops: SPI NOR controller driver specific operations.
368 * @params: [FLASH-SPECIFIC] SPI NOR flash parameters and settings.
410 static inline void spi_nor_set_flash_node(struct spi_nor *nor, in spi_nor_set_flash_node() argument
413 mtd_set_of_node(&nor->mtd, np); in spi_nor_set_flash_node()
416 static inline struct device_node *spi_nor_get_flash_node(struct spi_nor *nor) in spi_nor_get_flash_node() argument
418 return mtd_get_of_node(&nor->mtd); in spi_nor_get_flash_node()
422 * spi_nor_scan() - scan the SPI NOR
423 * @nor: the spi_nor structure
427 * The drivers can use this function to scan the SPI NOR.
435 int spi_nor_scan(struct spi_nor *nor, const char *name,
439 * spi_nor_restore_addr_mode() - restore the status of SPI NOR
440 * @nor: the spi_nor structure
442 void spi_nor_restore(struct spi_nor *nor);