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. NOTE: for OS 9 testers, QEMU's default G4 CPU for mac99 seems buggy and always crashes into MacsBug. Make sure that you have the interpreter.fs patch applied and run QEMU with -cpu G3. Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> v2: - Switch channel offsets over to match http://nandra.segv.jp/NetBSD/G4.dump-device-tree.txt (fixes serial port on Linux) - Fix DBDMA region size to 0x100 Mark Cave-Ayland (6): escc.c: rename offset to index ppc: fix ESCC reg properties escc.c: tidy-up legacy and non-legacy codepaths escc.c: add empty slot-names property to serial ports escc.c: add DBDMA addresses to reg property escc.c: add DBDMA interrupt properties openbios-devel/drivers/escc.c | 92 +++++++++++++++++++++++++---------------- 1 file changed, 56 insertions(+), 36 deletions(-) -- 1.7.10.4