[U-Boot] [PATCH 0/8] x86: Support off-chip graphics card on Intel Crown Bay

Bin Meng bmeng.cn at gmail.com
Fri Oct 23 03:48:21 CEST 2015


Hi Simon,

On Fri, Oct 23, 2015 at 9:42 AM, Simon Glass <sjg at chromium.org> wrote:
> Hi Bin,
>
> On 22 October 2015 at 19:41, Bin Meng <bmeng.cn at gmail.com> wrote:
>> On Fri, Oct 23, 2015 at 9:39 AM, Bin Meng <bmeng.cn at gmail.com> wrote:
>>> Previously when I started to look at the graphics support on Intel
>>> Crown Bay, I tried to debug IGD and off-chip graphics card but none
>>> of their vgabios can run under U-Boot. Later with a bug fixed in the
>>> 16-bit real mode and 32-bit protected mode switch, IGD vgabios can
>>> run successfully but these two PCIe graphics cards I have at hand
>>> still don't work.
>>>
>>> With recent bug fixes as an attempt to support SeaBIOS, I started to
>>> look at them again, and this time finally got both of them work.
>>> It turns out we need completely disable IGD on TunnelCreek chipset,
>>> and also get i8254 timer counter 1 set up corretly.
>>>
>>> This series also fixes several nits in the i8259/i8254 codes.
>>>
>>> In case someone is interested, the two PCIe graphics card I used for
>>> testing are:
>>>
>>
>> Looks git has eliminated my commit message somehow ..
>>
>> Here they are:
>>
>> #1: XGI Technology Inc., vendor ID 0x18ca, device ID 0x0027
>> #2: Matrox Electronics Systems Ltd., vendor ID 0x102b, device ID 0x2527
>
> Yes, # at the start of a line means a comment :-)

Ah, yes! I must be brain-dead :)

>
> Regards,
> Simon

Regards,
Bin


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