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From: | Gailu Singh |
Subject: | Re: 8250 memory mapped UART |
Date: | Wed, 1 Mar 2017 15:21:59 +0530 |
Hi,
On 03/01/2017 08:00 AM, Andrei Borzenkov wrote:
> please test patches from Matthias Lange
>
> https://lists.gnu.org/archive/html/grub-devel/2017-02/ msg00104.html
>
>
> On Wed, Mar 1, 2017 at 9:15 AM, Gailu Singh <address@hidden> wrote:
>> Hi Experts,
>>
>> I am using GRUB2 on intel apollo lake board. This board does not have IO
>> mapped uart instead it has 8250 memory mapped UART.
Could you share some details about the board?
>> GRUB2 does not recognize memory mapped uart and gives error ("serial port
>> COM0 not found). There is a 8250 memory mapped driver available in coreboot.
>> Is it possible to port that driver to Grub2?
My patch set adds support for 8250 MMIO PCI cards. Is the UART on your
board connected via PCI?
Best,
Matthias.
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