phosphor-ipmi-flash: A problem in BMC FW update over LPC

[CS20 KWLiu]

Hello Patrick:

We are currently trying to enable the BMC FW update over LPC on our platform (nuvoton BMC), but we encounter a problem with BIOS.

The BIOS engineer has reserved memory region as mmio space, but we couldn't see any data change in this region during run burn_my_bmc.

We have checked the BMC setting(in lpc_nuvoton.c and LDN SHM) but we couldn't identify the root cause of this problem.

Is there any settings we lost?

Thanks,
Joseph
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