Hi Riley,
On 15 February 2017 at 17:31, Riley Baird riley@openmailbox.org wrote:
Hi Simon,
I've tried porting u-boot to the veyron-speedy Chromebook, based upon the veyron-minnie patch.
I've attached a patch with my changes to this email.
However, when I boot, all I get is a black screen. So, I have some questions:
- Does u-boot show output to the laptop's screen, or do I have to make
a serial console?
It should show on both if all is well.
- If I have to make a serial console, where do I do this/what is the
pin layout?
You need a servo connector on the board - see here: https://www.chromium.org/chromium-os/servo
- Do I just have to sign u-boot-dtb.img with vbutil_kernel before
dd-ing it onto a USB, or do I have to do something else to make the right image?
I normally start up U-Boot from scratch, but it sounds like you are chain-loading it.
In that case I'm not sure what to do as I have not tried it. Your steps sound correct.
I've copied Tomeu who may know how to do this. If you figure it out it would be great to get a patch to README.rockchip.
Regards, Simon