You’re absolutely right. I disassembled the sdcard image and replaced all 3 bl2 sections of the image. The hardcoded offsets are in the OpenWrt image building makefile.
I do this because that is the most surefire way to make sure a person who’s new to the device will get a working device to spec. This prevents:
- following the OpenWrt instructions and getting a different RAM capacity than expected
- picking the wrong bl2 to flash (there are 9 on your uboot release page)
- wondering why booting from each boot source gives a different amount of detected ram (because it was not obvious to me each source had a different bl2)
- and as a corollary, the method for flashing nand using the bootloader involves copying the bl2 from an unloaded bl2 of the sdcard
None of these are necessary – and you could say that it’s all rookie mistakes – but reduces the amount of problems a new user who wants to get up and running quickly would encounter. The tradeoff would be needing a different sdcard image.
I think it’s worth it, especially since in my case I have had to get documentation from this forum, OpenWrt docs, and the OpenWrt forum to assemble a set of instructions that can work. This would also hopefully reduce the number of times experienced folk have to answer repeated questions (on all the different sources of information).
But ultimately at the end of the day it’s for you and the other maintainers who should make a call on what’s desirable – few people would have the deep and intimate knowledge of the hardware as you would.