[OpenBIOS] [PATCHv2 0/6] ppc: ESCC fixups (MacOS related)

[Programmingkid]

On Feb 20, 2016, at 12:18 PM, Mark Cave-Ayland wrote:

> This patchset is really a roll-up/rework of ESCC patches posted by Hervé and John
> along with a general tidy-up of the ESCC channel code and addition of DBDMA
> properties.
> 
> The most interesting change with this patchset is that a basic OS 9.2 image
> with just OT extensions enabled now hangs in QEMU in a loop constantly polling
> ESCC registers rather than crashing into MacsBug.

Do you know which ESCC register that Mac OS 9 is polling? If you do then making a patch that changes the value of this register to something Mac OS 9 expects can be done.