mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-16 09:48:16 +00:00
d1d9065647
Signed-off-by: Chong Huang <chuang@ucrobotics.com> Signed-off-by: Haitao Zhang <minipanda@linuxrobot.org> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
54 lines
2.1 KiB
C
54 lines
2.1 KiB
C
/*
|
|
* SPI flash internal definitions
|
|
*
|
|
* Copyright (C) 2008 Atmel Corporation
|
|
*/
|
|
|
|
/* Common parameters -- kind of high, but they should only occur when there
|
|
* is a problem (and well your system already is broken), so err on the side
|
|
* of caution in case we're dealing with slower SPI buses and/or processors.
|
|
*/
|
|
#define SPI_FLASH_PROG_TIMEOUT (2 * CONFIG_SYS_HZ)
|
|
#define SPI_FLASH_PAGE_ERASE_TIMEOUT (5 * CONFIG_SYS_HZ)
|
|
#define SPI_FLASH_SECTOR_ERASE_TIMEOUT (10 * CONFIG_SYS_HZ)
|
|
|
|
/* Common commands */
|
|
#define CMD_READ_ID 0x9f
|
|
|
|
#define CMD_READ_ARRAY_SLOW 0x03
|
|
#define CMD_READ_ARRAY_FAST 0x0b
|
|
#define CMD_READ_ARRAY_LEGACY 0xe8
|
|
|
|
/* Send a single-byte command to the device and read the response */
|
|
int spi_flash_cmd(struct spi_slave *spi, u8 cmd, void *response, size_t len);
|
|
|
|
/*
|
|
* Send a multi-byte command to the device and read the response. Used
|
|
* for flash array reads, etc.
|
|
*/
|
|
int spi_flash_cmd_read(struct spi_slave *spi, const u8 *cmd,
|
|
size_t cmd_len, void *data, size_t data_len);
|
|
|
|
/*
|
|
* Send a multi-byte command to the device followed by (optional)
|
|
* data. Used for programming the flash array, etc.
|
|
*/
|
|
int spi_flash_cmd_write(struct spi_slave *spi, const u8 *cmd, size_t cmd_len,
|
|
const void *data, size_t data_len);
|
|
|
|
/*
|
|
* Same as spi_flash_cmd_read() except it also claims/releases the SPI
|
|
* bus. Used as common part of the ->read() operation.
|
|
*/
|
|
int spi_flash_read_common(struct spi_flash *flash, const u8 *cmd,
|
|
size_t cmd_len, void *data, size_t data_len);
|
|
|
|
/* Manufacturer-specific probe functions */
|
|
struct spi_flash *spi_flash_probe_spansion(struct spi_slave *spi, u8 *idcode);
|
|
struct spi_flash *spi_flash_probe_atmel(struct spi_slave *spi, u8 *idcode);
|
|
struct spi_flash *spi_flash_probe_eon(struct spi_slave *spi, u8 *idcode);
|
|
struct spi_flash *spi_flash_probe_macronix(struct spi_slave *spi, u8 *idcode);
|
|
struct spi_flash *spi_flash_probe_sst(struct spi_slave *spi, u8 *idcode);
|
|
struct spi_flash *spi_flash_probe_stmicro(struct spi_slave *spi, u8 *idcode);
|
|
struct spi_flash *spi_flash_probe_winbond(struct spi_slave *spi, u8 *idcode);
|
|
struct spi_flash *spi_fram_probe_ramtron(struct spi_slave *spi, u8 *idcode);
|