[coreboot] Remaining Config.lb refactoring
c-d.hailfinger.devel.2006 at gmx.net
Tue Apr 21 13:19:34 CEST 2009
the following mainboard Config.lb have not been refactored yet because
they have not that much in common with other boards:
asus/m2v-mx_se/Config.lb (512 kB XIP, different size calculation)
technologic/ts5300/Config.lb (32 kB XIP)
digitallogic/msm586seg/Config.lb (32 kB XIP)
emulation/qemu-x86/Config.lb (32 kB XIP, no fallback)
iei/juki-511p/Config.lb (64 kB XIP, no fallback)
To be honest, XIP size calculation seems pretty arbitrary to me. Some
boards use 32 kB, some 64 kB, the majority uses 128 kB and one single
board uses 512 kB.
AFAICS for ROMCC boards, making XIP larger than cache will result in
cache misses, but won't corrupt anything.
For CAR boards, having CAR+XIP exceed cache size will result in
corruption. That means startup code should automatically calculate
maximum XIP size. As a side benefit, calculating XIP stuff can be
eliminated from these boards.
Can someone explain why the qemu-x86 and the IEI juki-511p targets do
not have fallback options?
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