Re: [coreboot] w83627 uart port is not workable with coreboot in linux

[Zoran Stojsavljevic]

Hello Cheng,

It seems from 37000 feet (commercial plane altitude) view that you do not
have the following:
[1] Appropriate Linux drivers for your W83627dhg superIO enabled in .config
(make menuconfig options);
[2] These drivers (maybe) are missing from your Linux distro;
[3] If drivers are there, something fishy with these drivers, something
with them is not right/correct.

I have couple of questions here:
[1] Which Linux distro are you using?
[2] Could you attach your kernel .config file?
[3] Could you attach your dmesg traces/records?

Thank you,
Zoran

On Fri, Jul 22, 2016 at 12:14 PM, cheng yichen 
wrote:
> Hi all
>
> My platform is braswell SOC with W83627dhg superIO. In post stage I can
> get debug message over w83627 uart1(3f8/irq4). but after boot to linux,
> uart port is not woarkable. I test the function by minicom but I can't
> receive and send data. I can get uart information by dmesg command.
> How to initial it in corebooot?
> Thank you