Tom, I just ran into the below old issue with the 'gpio' command on the u-boot mainline (returning -22 on 'gpio set 53'). Was commit 0a9e34056fcf86fb64e70bd281875eb7bbdbabde tested on AM335x?
Regards, Jason On Mon, Sep 14, 2015 at 4:26 PM Robert Nelson <[email protected]> wrote: > On Mon, Sep 14, 2015 at 3:16 PM, Francisco Aguerre > <[email protected]> wrote: > > Hello, > > > > I have a rev B BeagleBone Black which I have been using for over a year > as a > > development platform for a pseudo-clone board we are developing. We are > > using QNX as our OS. > > > > Lately I have been tinkering with U-Boot to learn how the boot process > works > > and configure our board properly. I cloned the U-boot git repository and > > built the 2015.10-rc2 version. The board boots fine and now the MPU > > frequency gets configured at 1GHz, but the thing is that the gpio console > > command doesn't seem to work anymore. > > > > Previously I used the 2013.04 version of U-Boot and could toggle leds > using > > the gpio comand (i.e. "gpio toggle 54" ), but now the same command just > > returns an error message "Command 'gpio' failed: Error -22". > > > > Is there anything I've missed to make this command work properly? For > > building u-boot I used the following commands: > > > > $ make ARCH=arm CROSS_COMPILE=arm-linux-gnueabi- distclean > > $ make ARCH=arm CROSS_COMPILE=arm-linux-gnueabi- > am335x_boneblack_defconfig > > $ make ARCH=arm CROSS_COMPILE=arm-linux-gnueabi- > > > > Any help will be appreciated! If you need aditional information, please > ask! > > Locally i had to revert 0a9e34056fcf86fb64e70bd281875eb7bbdbabde > > But i think we need to use the led labels from here: > > > http://git.denx.de/?p=u-boot.git;a=commit;h=1480fdf8a6dad28de70ade72974db436f7967525 > > But i'm not 100% sure on how to access them, as > > gpio set led@2 > > returned: "Command 'gpio' failed: Error -22". for me too... > > Regards, > > -- > Robert Nelson > https://rcn-ee.com/ > > -- > For more options, visit http://beagleboard.org/discuss > --- > You received this message because you are subscribed to the Google Groups > "BeagleBoard" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > For more options, visit https://groups.google.com/d/optout. > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
