Hi Iru Cai,
take a look at this http://review.coreboot.org/#/c/11765/ change. But beware there can be issues with that port.
Regards Zaolin
Hi,
I installed coreboot on my Lenovo ThinkPad T420 laptop today, and I'd like to share some experience and hope some one can solve some issues on it.
First, I built the T420s port and flashed it to the T420 laptop. Fortunately, the laptop could be brought up and boot to Linux. However, several USB ports didn't function properly(except the one for EHCI debug) because of the difference between T420s and T420 model. Now I've checked and used the code from the result generated from autoport, and all the USB ports work fine.
However, the devicetree.cb file generated from autoport does not work properly. I use GRUB payload with native graphic init. When I use the T420s devicetree.cb, it works fine, but with the autoport devicetree.cb, only the backlight is on and nothing displays. At last I built a kernel for GRUB payload, and the kernel handled the display properly, then I reflashed another ROM with flashrom to unbrick my laptop.
So can some one give me some instruction on devicetree.cb file? And another thing, how can I submit the code to the coreboot repository? Is symlinks to another source files allowed in the source tree?
Iru Cai
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