[SeaBIOS] IDT issue

[Naresh G. Solanki]

As per the document

http://www.intel.com/content/www/us/en/intelligent-systems/queens-bay/atom-e6xx-boot-requirements-app-note.html

Table 15 specifies about how to enable 0xE0000/0xF0000 segment.
As per that I have enabled the segment. Is that OK.

.


On Thu, Mar 19, 2015 at 7:12 PM, Kevin O'Connor <kevin at koconnor.net> wrote:

> On Thu, Mar 19, 2015 at 06:59:19PM +0530, Naresh G. Solanki wrote:
> > Hi,
> >
> > With respect to the auto reset issue,
> >
> > I did detailed memory test on my board and found the following
> > 0xA0000 - 0xBFFFF & 0xE0000 - 0xFFFFF region is not writable and every
> byte
> > reads as 0xFF.
>
> 0xA0000-0xC0000 is the legacy vga range, it's not normally mapped to
> memory, and can not (in normal cicrcumstances) be used as memory.
>
> The 0xC0000-0x100000 region is the historic BIOS and option rom
> location.  It almost certainly can be used as memory on your board,
> but it's common for chipsets to have some magic bit that makes the
> region read-only.  So, I think you need to find that magic bit and set
> it properly.
>
> -Kevin
>



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