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| author | Konstantin Aladyshev <aladyshev@nicevt.ru> | 2013-01-25 19:20:51 +0400 |
|---|---|---|
| committer | Patrick Georgi <patrick@georgi-clan.de> | 2013-02-11 08:27:51 +0100 |
| commit | 3d990ffc88f5d54f32de28cc6a2a87f490bd701a (patch) | |
| tree | 389177173d571a5e8f337b2c5e1ac9f3dfd2fcd4 /src/mainboard/asus/a8n_e | |
| parent | 96e3035a1f9f6ade63d31c4f5e6f806df609f5c1 (diff) | |
Supermicro H8QGI: Substract 1 from MMCONF range limit
MMCONF space is defined by two config parameters:
MMCONF_BASE_ADDRESS (0xF800 0000)
MMCONF_BUS_NUMBER (64)
Coreboot allocates 1MB per bus, so MMCONF limit should be:
0xF800 0000 + 64*(0x0010 0000) - 1 = 0xFBFF FFFF
Current code does not have (-1) component, this makes MMCONF limit
equal 0xFC00 FFFF. Not 0xFC00 0000, because according to BKDG
lower two bytes of MMIO limit always equal 0xFFFF:
MMIOLimit = {MMIOLimitRegister[47:16], FFFFh}.
Add (-1) to correct this issue.
No functionality change has been experienced. The five times
slower RAM speed compared to the proprietary vendor BIOS still
remains.
Change-Id: I2c6494c28bb8d36e54ceb2aa7d8d965b0103cbe9
Signed-off-by: Konstantin Aladyshev <aladyshev@nicevt.ru>
Reviewed-on: http://review.coreboot.org/2193
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martin.roth@se-eng.com>
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
Diffstat (limited to 'src/mainboard/asus/a8n_e')
0 files changed, 0 insertions, 0 deletions