Hi, Stefan Stefan Roese wrote: > Hi Felix, > > On Thursday 16 October 2008, Felix Radensky wrote: > >> I'm looking at GPIO setup code for Canyonlands, and >> it looks like some initializations mentioned in the 460EX >> manual are missing. When pin is configured as alternate >> input, the corresponding bits in TSRL/H registers should >> be set. U-Boot code sets TSRL/H registers only for output >> pins. >> >> Am I missing something ? >> > > Looking again at the users manual I can't find that the TSR register should > be > set for input functionality. Take a look at figure 35-1. Here you will see > that TSR is only involved for output functionality. > > I was looking at section 35.5.3 and Table 35-9 in user manual (Version 1.14) TSR is involved in both input and output functionality. This indeed contradicts the description you were referring to. Maybe AMCC guys reading this list can clarify ? > I assume that you are asking because of your Linux IRQ problem with the > external interrupt, correct? I'll take a look at the Linux thread and try to > give another answer there. > Thanks a lot. Your suggestion in this thread indeed helped. I was using wrong IRQ number in device tree. > And feel free to test with TSR configured for input as well. If this gets > your > interrupt working then this we need to change this GPIO config code of > course. > > I've tried that, but it didn't help.
Thanks a lot for you help. Felix. _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
