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 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. 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. Best regards, Stefan ===================================================================== DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: +49-8142-66989-0 Fax: +49-8142-66989-80 Email: [EMAIL PROTECTED] ===================================================================== _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot