[Dev] How can I enable SPIdev on Parabola ARM?

[Josh Branning]

It doesn't say which kernel all of those options apply to. If it's the 
sunxi kernel, then you may be out of luck. If it's the mainline kernel, 
which it probably is [1], don't you just edit the defconfig for the 
kernel, find those options and set them, then recompile the kernel?

If I understand correctly, there is no need to modify a fex file, as 
mainline kernels use the device tree model instead.

Why they weren't enabled in the first place though is a question to ask.

Josh


[1] 
https://git.parabola.nu/abslibre.git/tree/libre/linux-libre/config.armv7h

On 28/04/17 00:48, Megver83 wrote:
> I'm sorry, but I think you didn't understand. I just want Parabola to
> detect the GPIO pins, which is located in /dev/spidev* (virtually). GPIO
> pins are peripherals.
>
> And the reason is that I want to flash Libreboot on a ThinkPad *with the
> BPi*, I do not want to flash Libreboot on the Pi (AFAIK no one has tried
> that).
>
> El 27/04/17 a las 20:14, Josh Branning escribió:
>> On 27/04/17 20:21, Megver83 wrote:
>>> Hi everyone, I want to flash libreboot with my Banana Pi M1, but I
>>> haven't found a way to enable the /dev/spidev* devices. I've tried
>>> enabling spidev and spi-sun4i modules, but nothing. In some forums, it
>>> tells me to edit the famous /boot/config.txt which is only available
>>> for the RPi.
>>>
>>> I've read http://linux-sunxi.org/SPIdev but I really do not know the
>>> difference between "y" and "m" in kernels (I know that "m" stands for
>>> "module"). If you can help me, I'd be very thankful.
>>
>> IIRC y stands for "yes", assuming support is in the kernel, and y is to
>> enable that support. I think you are correct that m is for "module".
>>
>> Have you tried UART connection?
>>
>> Before arch linux arm supported the A10 olinuxino-lime, I got u-boot and
>> a kernel compiled with an arch linux rootfs, to put on an sdcard [1]. I
>> also did the same for an A13 tablet (although it had/needed proprietary
>> wifi drivers).
>>
>> It was a long time ago, but I also had problems, so debugged using UART,
>> and can strongly recommend this for sunxi devices.
>>
>> That said, I did not use libreboot, I used u-boot instead. Somebody had
>> already ported u-boot to those boards, so not much work was needed.
>>
>> Sorry if I cannot be of any more help, I am by no means an expert,
>>
>> Nowadays, I just install the arch linux arm image, and follow the
>> migration guide, which doesn't help much for debugging, but seems to work.
>>
>> Josh
>>
>>
>> [1]
>> http://www.publicsite.org/J05HYYY/software_downloads/olinuxinolime-archlinux.tar.gz
>>
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>