Kernel hacking - getting a "clean" 3.0.35 image

[removed old stuff]

I am maintaining some work on this at https://github.com/voltagex/udoo-kernel

Thanks to trunet and others

You can probably contact me easiest on the #udoo IRC channel on freenode, or via twitter @voltagex

 

+1

I was doing exactly the same as you. I'll try to help.

 

Attached is my patch against linux-imx6 repository imx_3.0.35_4.1.0 branch.

My microsd is recognized but I'm getting a kernel panic of not finding root partition. Still trying to figure out. My guess is that someway microsd is write locked(because I'm getting a (ro) when it's recognized). No idea how to fix, I'm not a kernel developer.

 

this is my "new" kernel output.

http://pastebin.com/GK3gBa1t

 

success. I hacked MMC driver to never mount as read-only. latest patch is here and is working against 3.0.35-4.1.0. now I'll start playing with audio that is not being recognizing and vivante gpu after it.

 

Don't know what time zone you're in but I think you should hop on IRC. I'll be around a bit.

 

Hello.
I'm pretty new at kernel stuff and such things. Can I ask you about that kernel "hack"?

 

What would you like to know?

 

Actually I'd like to know what exactly that kermel does. I read the documentation and I didn't understand a lot of things.

 

Hi,

I tried to get the imx6 pwm to work on my board (pwm1). I made some nice code to fill all the required registers but no way to be able to write into them (could not write into /dev/mem or kmem , I could not map them to a file). Is this normal? It seems (google) the kernel is preventing me to do it for security reasons. Can you confirm? What should be the proper way to do it? (I came to the conclusion that it should be done through u-boot, but I am not sure, and this seem quiet limiting).

Thanks.