projects / people / ms / u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| 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 | ||
| 6163045b MF |
22 | #define CMD_READ_STATUS 0x05 |
| 23 | ||
| 24 | /* Common status */ | |
| 25 | #define STATUS_WIP 0x01 | |
| 26 | ||
| d25ce7d2 HS |
27 | /* Send a single-byte command to the device and read the response */ |
| 28 | int spi_flash_cmd(struct spi_slave *spi, u8 cmd, void *response, size_t len); | |
| 29 | ||
| 30 | /* | |
| 31 | * Send a multi-byte command to the device and read the response. Used | |
| 32 | * for flash array reads, etc. | |
| 33 | */ | |
| 34 | int spi_flash_cmd_read(struct spi_slave *spi, const u8 *cmd, | |
| 35 | size_t cmd_len, void *data, size_t data_len); | |
| 36 | ||
| 37 | /* | |
| 38 | * Send a multi-byte command to the device followed by (optional) | |
| 39 | * data. Used for programming the flash array, etc. | |
| 40 | */ | |
| 41 | int spi_flash_cmd_write(struct spi_slave *spi, const u8 *cmd, size_t cmd_len, | |
| 42 | const void *data, size_t data_len); | |
| 43 | ||
| 44 | /* | |
| 45 | * Same as spi_flash_cmd_read() except it also claims/releases the SPI | |
| 46 | * bus. Used as common part of the ->read() operation. | |
| 47 | */ | |
| 48 | int spi_flash_read_common(struct spi_flash *flash, const u8 *cmd, | |
| 49 | size_t cmd_len, void *data, size_t data_len); | |
| 50 | ||
| 6163045b MF |
51 | /* Send a command to the device and wait for some bit to clear itself. */ |
| 52 | int spi_flash_cmd_poll_bit(struct spi_flash *flash, unsigned long timeout, | |
| 53 | u8 cmd, u8 poll_bit); | |
| 54 | ||
| 55 | /* | |
| 56 | * Send the read status command to the device and wait for the wip | |
| 57 | * (write-in-progress) bit to clear itself. | |
| 58 | */ | |
| 59 | int spi_flash_cmd_wait_ready(struct spi_flash *flash, unsigned long timeout); | |
| 60 | ||
| d25ce7d2 HS |
61 | /* Manufacturer-specific probe functions */ |
| 62 | struct spi_flash *spi_flash_probe_spansion(struct spi_slave *spi, u8 *idcode); | |
| 63 | struct spi_flash *spi_flash_probe_atmel(struct spi_slave *spi, u8 *idcode); | |
| d1d90656 | 64 | struct spi_flash *spi_flash_probe_eon(struct spi_slave *spi, u8 *idcode); |
| 7ce6031a | 65 | struct spi_flash *spi_flash_probe_macronix(struct spi_slave *spi, u8 *idcode); |
| 1c587437 | 66 | struct spi_flash *spi_flash_probe_sst(struct spi_slave *spi, u8 *idcode); |
| 7b7a869a | 67 | struct spi_flash *spi_flash_probe_stmicro(struct spi_slave *spi, u8 *idcode); |
| d394a779 | 68 | struct spi_flash *spi_flash_probe_winbond(struct spi_slave *spi, u8 *idcode); |
| e0987e25 | 69 | struct spi_flash *spi_fram_probe_ramtron(struct spi_slave *spi, u8 *idcode); |