| Haavard Skinnemoen | d25ce7d | 2008-05-16 11:10:33 +0200 | [diff] [blame] | 1 | /* |
| 2 | * SPI flash internal definitions |
| 3 | * |
| 4 | * Copyright (C) 2008 Atmel Corporation |
| 5 | */ |
| 6 | |
| Mike Frysinger | 1abe365 | 2009-04-02 08:11:31 -0400 | [diff] [blame] | 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) |
| Jean-Christophe PLAGNIOL-VILLARD | 6d0f6bc | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 13 | #define SPI_FLASH_SECTOR_ERASE_TIMEOUT (10 * CONFIG_SYS_HZ) |
| Haavard Skinnemoen | d25ce7d | 2008-05-16 11:10:33 +0200 | [diff] [blame] | 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); |
| Prafulla Wadaskar | 7ce6031 | 2009-04-06 21:24:43 +0530 | [diff] [blame] | 49 | struct spi_flash *spi_flash_probe_macronix(struct spi_slave *spi, u8 *idcode); |
| Mike Frysinger | 1c58743 | 2009-03-27 19:27:58 -0400 | [diff] [blame] | 50 | struct spi_flash *spi_flash_probe_sst(struct spi_slave *spi, u8 *idcode); |
| TsiChung Liew | 7b7a869 | 2008-08-06 16:08:41 -0500 | [diff] [blame] | 51 | struct spi_flash *spi_flash_probe_stmicro(struct spi_slave *spi, u8 *idcode); |
| Jason McMullan | d394a77 | 2009-10-09 17:12:23 -0400 | [diff] [blame] | 52 | struct spi_flash *spi_flash_probe_winbond(struct spi_slave *spi, u8 *idcode); |