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Commit | Line | Data |
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d25ce7d2 HS |
1 | /* |
2 | * SPI flash internal definitions | |
3 | * | |
4 | * Copyright (C) 2008 Atmel Corporation | |
5 | */ | |
6 | ||
7 | /* Common parameters */ | |
8 | #define SPI_FLASH_PROG_TIMEOUT ((10 * CFG_HZ) / 1000) | |
9 | #define SPI_FLASH_PAGE_ERASE_TIMEOUT ((50 * CFG_HZ) / 1000) | |
10 | #define SPI_FLASH_SECTOR_ERASE_TIMEOUT (10 * CFG_HZ) | |
11 | ||
12 | /* Common commands */ | |
13 | #define CMD_READ_ID 0x9f | |
14 | ||
15 | #define CMD_READ_ARRAY_SLOW 0x03 | |
16 | #define CMD_READ_ARRAY_FAST 0x0b | |
17 | #define CMD_READ_ARRAY_LEGACY 0xe8 | |
18 | ||
19 | /* Send a single-byte command to the device and read the response */ | |
20 | int spi_flash_cmd(struct spi_slave *spi, u8 cmd, void *response, size_t len); | |
21 | ||
22 | /* | |
23 | * Send a multi-byte command to the device and read the response. Used | |
24 | * for flash array reads, etc. | |
25 | */ | |
26 | int spi_flash_cmd_read(struct spi_slave *spi, const u8 *cmd, | |
27 | size_t cmd_len, void *data, size_t data_len); | |
28 | ||
29 | /* | |
30 | * Send a multi-byte command to the device followed by (optional) | |
31 | * data. Used for programming the flash array, etc. | |
32 | */ | |
33 | int spi_flash_cmd_write(struct spi_slave *spi, const u8 *cmd, size_t cmd_len, | |
34 | const void *data, size_t data_len); | |
35 | ||
36 | /* | |
37 | * Same as spi_flash_cmd_read() except it also claims/releases the SPI | |
38 | * bus. Used as common part of the ->read() operation. | |
39 | */ | |
40 | int spi_flash_read_common(struct spi_flash *flash, const u8 *cmd, | |
41 | size_t cmd_len, void *data, size_t data_len); | |
42 | ||
43 | /* Manufacturer-specific probe functions */ | |
44 | struct spi_flash *spi_flash_probe_spansion(struct spi_slave *spi, u8 *idcode); | |
45 | struct spi_flash *spi_flash_probe_atmel(struct spi_slave *spi, u8 *idcode); |