diff options
| -rw-r--r-- | include/configs/o2dnt.h | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/include/configs/o2dnt.h b/include/configs/o2dnt.h index 6d388f3..12a732d 100644 --- a/include/configs/o2dnt.h +++ b/include/configs/o2dnt.h @@ -150,12 +150,23 @@ #define CFG_I2C_SLAVE 0x7F /* - * EEPROM configuration + * EEPROM configuration: + * + * O2DNT board is equiped with Ramtron FRAM device FM24CL16 + * 16 Kib Ferroelectric Nonvolatile serial RAM memory + * organized as 2048 x 8 bits and addressable as eight I2C devices + * 0x50 ... 0x57 each 256 bytes in size + * */ #define CFG_I2C_EEPROM_ADDR 0x50 /* 1010000x */ #define CFG_I2C_EEPROM_ADDR_LEN 1 #define CFG_EEPROM_PAGE_WRITE_BITS 3 -#define CFG_EEPROM_PAGE_WRITE_DELAY_MS 70 +/* + * There is no write delay with FRAM, write operations are performed at bus + * speed. Thus, no status polling or write delay is needed. + */ +/*#define CFG_EEPROM_PAGE_WRITE_DELAY_MS 70*/ + /* * Flash configuration |