1 comment:
File src/mainboard/asus/a88xm-e/OemCustomize.c:
/* Set to 0x40 instead of 0xE0 to avoid the PCI resource allocation problems. */
InitPost->MemConfig.BottomIo = 0x40;
Here are the results of my today's research: 0xC0, 0xB0, 0xA0, 0x90, 0x80, 0x70, 0x60, 0x50, 0x40, 0x30, 0x28 - work great both with HD6670 and RX590 discrete GPU;
0x24, 0x20, 0x10, 0x00 - coreboot freezes before reaching a SeaBIOS.
Although 0x28 works great on A88XM-E, this border value may fail on some other AGESA board. As I'm spreading this fix across the multiple AGESA boards and would like it to be the same value, I've decided to pick 0x40 for some extra safety.
To view, visit change 30987. To unsubscribe, or for help writing mail filters, visit settings.