[U-Boot] "fdt" commands in extlinux.conf ?
I'd like to enable the CANbus on a Beagle Bone Black (on Fedora ... which doesn't do "cape manager").
The crux is a fdt command in u-boot :
fdt set d_can1 status okay
Is there a way to do this in extlinux.conf ?
I didn't see a way (in uboot 2017.09), so I wrote a uEnv.txt script (see attached).
That's a bit verbose and duplicates a bunch of stuff already in uboot (also : uEnv.txt doesn't exist on my "Orange Pi One").
It there a simpler way to state "fdt" commands ?
Thanks
On Sun, Jan 7, 2018 at 4:04 AM, Ken Harris kjh@hokulea.org wrote:
I'd like to enable the CANbus on a Beagle Bone Black (on Fedora ... which doesn't do "cape manager").
Well Fedora doesn't so stuff that's not upstream, and while there's been a bunch of discussion there's been no decision upstream of how best to do overlay management.
The crux is a fdt command in u-boot :
fdt set d_can1 status okay
Is there a way to do this in extlinux.conf ?
You could probably load an overlay and save the environment? Dealing with this better in Fedora is on my todo list to get to eventually.
I didn't see a way (in uboot 2017.09), so I wrote a uEnv.txt script (see attached).
That's a bit verbose and duplicates a bunch of stuff already in uboot (also : uEnv.txt doesn't exist on my "Orange Pi One").
It there a simpler way to state "fdt" commands ?
Thanks
U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot
On Sun, Jan 7, 2018 at 6:39 PM, Peter Robinson pbrobinson@gmail.com wrote:
On Sun, Jan 7, 2018 at 4:04 AM, Ken Harris kjh@hokulea.org wrote:
The crux is a fdt command in u-boot :
fdt set d_can1 status okay
Is there a way to do this in extlinux.conf ?
You could probably load an overlay and save the environment?
FYI, this is not an overlay (fdt apply), but just a "fdt set" command : the d_can1 section is already in am335x-boneblack.dtb (but with status = "disabled")
I didn't see a way (in uboot 2017.09), so I wrote a uEnv.txt script (see attached).
That's a bit verbose and duplicates a bunch of stuff already in uboot
Dealing with this better in Fedora is on my todo list to get to eventually.
Thanks, but as the uEnv.txt script shows, this can be handled in u-boot and Fedora will react to those changes.
It there a simpler way to state "fdt" commands ?
It seems to me there should be some new fields in extlinux.conf to state u-boot "fdt" commands, such as "fdt set" and "fdt apply"
Thanks
U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot
participants (2)
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Ken Harris -
Peter Robinson