On Wed, Sep 17, 2003 at 09:58:07AM +0200, Niki Waibel wrote:
what about haveing bios savior + DoC in a mb _and_ connecting the bios savior switch to an address pin...
that way it should be possible to have enough room in the bios savior rom for doing everything. then the DoC could be activated...
i think that booting should start with the internal bios savior chip (with linuxbios). and then, at some stage (all init of mem and copying of bios savior rom done) the switch is "activated" (by a read of some address or sthg).
If you connect the switch to A18, you can have the ROM at 4G-256K (it's where the ROM resides normally) and the DoC at 4G-512K (or vice versa)...? I don't know if it really works but if it does, you can have existing LinuxBIOS code in the ROM and configure it to load kernel from the DoC. However I don't know what the advantage of it compaired to the IDE-CF configuration. -- Takeshi