a20 boot directly from sata without nand and sd/mmc

Started by virgin, March 13, 2015, 01:16:00 PM

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virgin

Hi guru and all,
is it possible to boot an linux image directly from SATA  without nand and sd/mmc?
Thanks in advance

A.

jmyreen

Quote from: virgin on March 13, 2015, 01:16:00 PM
Hi guru and all,
is it possible to boot an linux image directly from SATA  without nand and sd/mmc?
Thanks in advance

A.

The boot ROM in the A10 or A20 can read the next stage of the boot code from an SD card, on-board NAND, SPI-connected memory or USB. There is no code capable of reading data from SATA, so the answer to you question is no.


frederic_alexandre

To complete , the code read on the SD/NAND is used to set the system (driver to the sata for instance).
If you want to boot from your sata, you must add code in the SD/NAND to initialize the sata hd and then jump to the hd.
It might be not very easy at first sight.

virgin

#3
Hi,
thanks for replies.
Is any other version of olimex board permit me to boot from sata directly?
Thanks in advance

A.