Prafulla Wadaskar a écrit :
I still do not understand who will fectch u-boot binary to TEXT_BASE? (reported earlier) Is this flash XIP? Does u-boot binary below 16k? What is the size of flash? Pls refer my comments for v3
I thought I'd explained that already, haven't I? At power-up a ROM code at FFFF0000 (64KB of ROM taking precedence over CS0, as seen from JTAG) does a few checks then jumps to FFF90000, which is the NOR Flash. The U-boot image is mapped and flashed so that the entry point is at FFF90000. The entry point then does further inits (some under condition that SKIP_CONFIG_LOWLEVEL_INIT is not defined), initializes RAM, relocates code to TEXT_BASE (if CONFIG_SKIP_RELOCATE_UBOOT is not defined) and then jumps to it.
Amicalement,