I am working on p1022 with a sample designed board. I want to use only SATA and Ethernet processor features and I put a sd card with minimal image.
1- Should I modify registers content to use these features? or primary initialize features is adequate?
2- How can I read/write registers? Is CodeWarrior only way ?
3- For example in Protocol Control Register (PROCTL), DTW bits are 00 at first.How can I change DTW to 01 for 4-bit data transfer rate in eSDHC? Is it possible before booting minimal image?