While making modifications to legacy software we have found writes to reserved/undocumented registers. Maybe these are from an early datasheet or errata?
Both writes are to the host PCI configuration space (bus=0, dev=0, fxn=0)
// PCI Bridge Option
0x40 = 0x00000004;
// PCI PIMOSA
0x98 = 0xC0000003;
Does anyone recognize what these register writes are doing?
Thanks,
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Those registers are definitely not from the MPC8270 PCI configuration space. If your software was really written for the MPC8270, you should remove those writes.
Regards,
Bulat
Those registers are definitely not from the MPC8270 PCI configuration space. If your software was really written for the MPC8270, you should remove those writes.
Regards,
Bulat