pugazh mahalingam wrote:
Hi, I'm porting u-boot-1.3.1. on a MPC8548PC processor and I'm using the start.S file of u-boot-1.1.4. But I encounter booting problems.. The processor cannot bootup .. its going to hang state .. I used start.S of u-boot-1.1.4 since it works fine for u-boot-1.1.4 .. please help in this regard ..
thanks ..
regards pugazh
Hi pugazh,
From your description, it sounds like you took 1.3.1, discarded its start.S, and simply tried to replace it with the start.S from 1.1.4.
If that is what you are attempting, it isn't surprising it doesn't work.
(Listen to Kumar's advice: you should go all the way to the latest code.)
If you are trying to pull your port forward from 1.1.4, you are going to have to understand what the differences are between 1.1.4 and 1.3.1 (or newer). There just aren't any shortcuts.
Time to crank up your JTAG debugger and see where the code is stopping and why.
You can (theoretically) use git-bisect to figure out where booting breaks in the series of changesets from 1.1.4 to 1.3.1. It isn't going to be fast because you are talking years of changes (and I'm guessing your board isn't in the standard u-boot tree, which may cause you grief too).
We really cannot help you much, you basically have given us no useful data: "It's broken and there are lots of changes." We're good, but we aren't *that* good. :-( Sorry.
Good luck, gvb