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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 | ||
1abe365f MF |
7 | /* Common parameters -- kind of high, but they should only occur when there |
8 | * is a problem (and well your system already is broken), so err on the side | |
9 | * of caution in case we're dealing with slower SPI buses and/or processors. | |
10 | */ | |
11 | #define SPI_FLASH_PROG_TIMEOUT (2 * CONFIG_SYS_HZ) | |
12 | #define SPI_FLASH_PAGE_ERASE_TIMEOUT (5 * CONFIG_SYS_HZ) | |
6d0f6bcf | 13 | #define SPI_FLASH_SECTOR_ERASE_TIMEOUT (10 * CONFIG_SYS_HZ) |
d25ce7d2 HS |
14 | |
15 | /* Common commands */ | |
16 | #define CMD_READ_ID 0x9f | |
17 | ||
18 | #define CMD_READ_ARRAY_SLOW 0x03 | |
19 | #define CMD_READ_ARRAY_FAST 0x0b | |
20 | #define CMD_READ_ARRAY_LEGACY 0xe8 | |
21 | ||
22 | /* Send a single-byte command to the device and read the response */ | |
23 | int spi_flash_cmd(struct spi_slave *spi, u8 cmd, void *response, size_t len); | |
24 | ||
25 | /* | |
26 | * Send a multi-byte command to the device and read the response. Used | |
27 | * for flash array reads, etc. | |
28 | */ | |
29 | int spi_flash_cmd_read(struct spi_slave *spi, const u8 *cmd, | |
30 | size_t cmd_len, void *data, size_t data_len); | |
31 | ||
32 | /* | |
33 | * Send a multi-byte command to the device followed by (optional) | |
34 | * data. Used for programming the flash array, etc. | |
35 | */ | |
36 | int spi_flash_cmd_write(struct spi_slave *spi, const u8 *cmd, size_t cmd_len, | |
37 | const void *data, size_t data_len); | |
38 | ||
39 | /* | |
40 | * Same as spi_flash_cmd_read() except it also claims/releases the SPI | |
41 | * bus. Used as common part of the ->read() operation. | |
42 | */ | |
43 | int spi_flash_read_common(struct spi_flash *flash, const u8 *cmd, | |
44 | size_t cmd_len, void *data, size_t data_len); | |
45 | ||
46 | /* Manufacturer-specific probe functions */ | |
47 | struct spi_flash *spi_flash_probe_spansion(struct spi_slave *spi, u8 *idcode); | |
48 | struct spi_flash *spi_flash_probe_atmel(struct spi_slave *spi, u8 *idcode); | |
7ce6031a | 49 | struct spi_flash *spi_flash_probe_macronix(struct spi_slave *spi, u8 *idcode); |
1c587437 | 50 | struct spi_flash *spi_flash_probe_sst(struct spi_slave *spi, u8 *idcode); |
7b7a869a | 51 | struct spi_flash *spi_flash_probe_stmicro(struct spi_slave *spi, u8 *idcode); |
d394a779 | 52 | struct spi_flash *spi_flash_probe_winbond(struct spi_slave *spi, u8 *idcode); |
e0987e25 | 53 | struct spi_flash *spi_fram_probe_ramtron(struct spi_slave *spi, u8 *idcode); |