On Tue, Jan 05, 2016 at 10:47:41AM +0000, Jason Kridner wrote: > 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?
Oh hell. I did test this at the time and I tested it again this morning and I see what's going on. When I did my tests I was testing some other DM related changes and so I had the device tree also included and that's how all of the GPIOs were found. I probably also tested on an old beagleboard without a device tree. But I did forget to test am335x without a device tree and that's where it's failing now. I'm flashing one of the user LEDs in my office right now and I'll post something to the mailing lists shortly that also fixes OMAP4/OMAP5. > > 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. > > -- Tom -- 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.
signature.asc
Description: Digital signature
