2017 6:51 PM
To: Zheng Bao; coreboot@coreboot.org
Subject: Re: [coreboot] [Broadwell-U]How the eDP, DDI1, DDI2 are enabled?
On 10.08.2017 16:36, Zheng Bao wrote:
> Thanks. Your advice is quite helpful.
>
>
> I got the BMP and BSF, created a vBIOS which enables the DDI2 as DP. The
(All what
I remember from an Ivy Bridge VBT.)
Nico
>
>
> Zheng
>
>
> From: Nico Huber <nic...@gmx.de>
> Sent: Wednesday, August 9, 2017 6:29 PM
> To: Zheng Bao; coreboot@coreboot.org
> Subject: Re: [coreboot] [Broadwell-U]How th
<nic...@gmx.de>
Sent: Wednesday, August 9, 2017 6:29 PM
To: Zheng Bao; coreboot@coreboot.org
Subject: Re: [coreboot] [Broadwell-U]How the eDP, DDI1, DDI2 are enabled?
On 08.08.2017 05:39, Zheng Bao wrote:
> In text mode,
> only one display can be enabled.
>
>
> Can this
On 08.08.2017 05:39, Zheng Bao wrote:
> In text mode,
> only one display can be enabled.
>
>
> Can this enabled display port be DDI1 or DDI2?
>
> I just extracted VBIOS from BIOS provided on board. I assume the display
> ports are enabled based on the board settings.
>
> Can I just set
nable DDI1?
Thanks.
Zheng
From: Nico Huber <nic...@gmx.de>
Sent: Monday, August 7, 2017 9:32 AM
To: Zheng Bao; coreboot@coreboot.org
Subject: Re: [coreboot] [Broadwell-U]How the eDP, DDI1, DDI2 are enabled?
On 06.08.2017 05:18, Zheng Bao wrote:
&g
On 06.08.2017 05:18, Zheng Bao wrote:
At which stage do you want to enables these ports? in the OS? or during
boot? if the latter, which payload do you use?
Zheng: I want to enable these display port during boot. The payload is SeaBIOS.
You have to set your VGA BIOS to a VESA mode AFAIK. In
turday, August 5, 2017 12:17 PM
To: Zheng Bao; coreboot@coreboot.org
Subject: Re: [coreboot] [Broadwell-U]How the eDP, DDI1, DDI2 are enabled?
Hi Zheng,
On 04.08.2017 04:35, Zheng Bao wrote:
> I need to clarify my question.
>
> For Broadwell-U, are there internal 3 display ports? Is th
Hi Zheng,
On 04.08.2017 04:35, Zheng Bao wrote:
I need to clarify my question.
For Broadwell-U, are there internal 3 display ports? Is the first one set
statically as eDP?
the first (DDI0 or DDI-A) is eDP only. The other two can be used for DP,
HDMI/DVI or both (aka DP++ or dual-mode DP).
<coreboot-boun...@coreboot.org> on behalf of Zheng Bao
<fishb...@hotmail.com>
Sent: Wednesday, August 2, 2017 6:35 AM
To: coreboot@coreboot.org
Subject: [coreboot] [Broadwell-U]How the eDP, DDI1, DDI2 are enabled?
-
# Enable eDP Hotplug with 6ms pulse
-
# Enable eDP Hotplug with 6ms pulse
register "gpu_dp_d_hotplug" = "0x06"
# Enable DDI1 Hotplug with 6ms pulse
register "gpu_dp_b_hotplug" = "0x06"
# Enable DDI2 Hotplug with 6ms pulse
register "gpu_dp_c_hotplug" = "0x06"
# Set
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