Hi, I installed Coreboot with SeaBIOS on a Supermicro X11SSH-LN4F. The stock BIOS can read two NVMe drives in a Dual m.2 splitter card inserted in the middle slot 5 on the motherboard. But coreboot can not. In the coreboot nconfig menu there is no setting that will enable bifurcation of the x8 slot to x4x4.
Is this something that is configurable in any way?
/Tomas
On Tue, Apr 11, 2023 at 11:10 PM Tomas tomas@fritiofson.se wrote:
Hi, I installed Coreboot with SeaBIOS on a Supermicro X11SSH-LN4F. The stock BIOS can read two NVMe drives in a Dual m.2 splitter card inserted in the middle slot 5 on the motherboard. But coreboot can not. In the coreboot nconfig menu there is no setting that will enable bifurcation of the x8 slot to x4x4.
Is this something that is configurable in any way?
HI Tomas
The patch below might give you directions or ideas.
I don't have the hardware in question, so mostly guessing based on the comments in the file. If you have lspci output from OEM boot, it could help.
Kyösti
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Kyösti Mälkki -
Tomas