Am 25.10.2017 um 09:15 schrieb Alexander Bergmann
On Wed, Oct 25, 2017 at 06:06:26AM +0900, Andreas
Am 25.10.2017 um 03:14 schrieb Alexander
I'm not sure how to enable SPI in openSUSE Leap 43.3. I've changed the
config.txt file and added "dtparam=spi=on", this has however no affect
on the hardware. The same steps are working in Raspbian.
#> cat /proc/device-tree/soc/spi@7e204000/status
Please see my examples linked from the 40-pin connector on the HCL Wiki
Hmmm, I've digged through the wiki last night, but I was unable to find
it. Could you post the link here?
Since we use U-Boot, such external Raspberry Pi
examples won't work and
you should use U-Boot's fdt apply command instead.
Intressting, I'm still trying to understand the whole boot process and
at which time which component is loaded and can be modified. I thought
the config.txt is loaded directly before u-boot and therefore SPI gets
activated via that dtparam switch.
So I have to get my head around the whole EFI boot.
I have work in progress that would allow you to modify config.txt and see the dt changes
populated to Linux, but we‘re not fully there yet.
Today we simply ignore the device tree we get generated by start.elf (which includes
config.txt changes) and replace it with a built-in one in U-Boot. So today you need to
then modify that one again.
To unsubscribe, e-mail: opensuse-arm+unsubscribe(a)opensuse.org
To contact the owner, e-mail: opensuse-arm+owner(a)opensuse.org