diff options
Diffstat (limited to 'sys/boot/arm/at91/libat91/spi_flash.h')
| -rw-r--r-- | sys/boot/arm/at91/libat91/spi_flash.h | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/sys/boot/arm/at91/libat91/spi_flash.h b/sys/boot/arm/at91/libat91/spi_flash.h new file mode 100644 index 0000000..e3df2e0 --- /dev/null +++ b/sys/boot/arm/at91/libat91/spi_flash.h @@ -0,0 +1,54 @@ +/******************************************************************************* + * + * Filename: spi_flash.h + * + * Definition of flash control routines supporting AT45DB161B + * + * Revision information: + * + * 17JAN2005 kb_admin initial creation + * + * BEGIN_KBDD_BLOCK + * No warranty, expressed or implied, is included with this software. It is + * provided "AS IS" and no warranty of any kind including statutory or aspects + * relating to merchantability or fitness for any purpose is provided. All + * intellectual property rights of others is maintained with the respective + * owners. This software is not copyrighted and is intended for reference + * only. + * END_BLOCK + * + * $FreeBSD$ + ******************************************************************************/ + +#ifndef _SPI_FLASH_H_ +#define _SPI_FLASH_H_ + +typedef struct { + char *tx_cmd; + unsigned tx_cmd_size; + char *rx_cmd; + unsigned rx_cmd_size; + char *tx_data; + unsigned tx_data_size; + char *rx_data; + unsigned rx_data_size; +} spiCommand_t; + +void SPI_ReadFlash(unsigned flash_addr, char *dest_addr, unsigned size); +void SPI_WriteFlash(unsigned flash_addr, char *dest_addr, unsigned size); +void SPI_InitFlash(void); + +void SPI_GetId(unsigned *id); + +#define FLASH_PAGE_SIZE 1056 + +// Flash commands + +#define CONTINUOUS_ARRAY_READ 0xE8 +#define CONTINUOUS_ARRAY_READ_HF 0x0B +#define CONTINUOUS_ARRAY_READ_LF 0x03 +#define STATUS_REGISTER_READ 0xD7 +#define PROGRAM_THROUGH_BUFFER 0x82 +#define MANUFACTURER_ID 0x9F + +#endif |
