Hi Eric, On 01/10/2013 16:26, Eric Nelson wrote:
> I'm not sure where you're seeing this in the RM, but in > order to read the pad state when not configured as an input, > the SION bit needs to be set in the pad mux register on i.MX51/53. I have checked inside the "37.3.2.2 GPIO Write" for i.MX53 and " 35.4.2.1 Read Value from Pad" for i:MX51, I have not read anything about SION. If someone has found where it is described, please mail ! > > FWIW, this also works when not muxed as a GPIO, which is really > handy for verifying that a PWM is toggling, et cetera. Well, if you have directly tested it, it is better proofed as by the manuals..then we need the same fix for i.MX51/i.MX53, too. Thanks, Stefano -- ===================================================================== DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: +49-8142-66989-53 Fax: +49-8142-66989-80 Email: [email protected] ===================================================================== _______________________________________________ U-Boot mailing list [email protected] http://lists.denx.de/mailman/listinfo/u-boot
