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 <[email protected]> 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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