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AM335x Evaluation Kit: EEPROM

Ajaypal Singh Sandhu
Prodigy 15 points

Hi

In AM335x Evaluation Kit, a 256Kb EEPROM is connected with the I2C0 interface of the processor.

As per the page no. 4559 of the AM335x Technical Reference Manual,

"ROM supports a special boot mode called NANDI2C to support NAND devices whose geometry cannot be detected by the ROM automatically using methods described in the previous section. If this boot mode is selected, the ROM code tries to read NAND geometry from an I2C EEPROM. If the read is successful,ROM code then proceeds to next steps of NAND boot, beginning with reading bad blocks information."

We understand that EEPROM is required only in NANDI2C boot mode and  if we use a one of the supported  NAND flash (the list mentioned on the page 4557 of AM335x TRM), the EEPROM flash can be omitted. Pls. comment.

Is there any other software process dependent on the existence of the EEPROM in the board? Pls. elaborate.

Thanks in advance.

Ajaypal Singh Sandhu