This is now a minimal set of patches needed to make it possible to experiment with a firmware ROM from real hardware. After finding out that the board firmware does not probe PCI devices but expects them at known fixed addresses we only need to change the address of the macio device to get the firmware correctly map it. This allows dropping workarounds in previous versions for this and now only the minimal set of patches are included to get the firmware loaded and do something. (Also excluded the grackle revision and machine ID pathes for now that may be needed as the firmware accesses these but seems to go further without them so until we hit a problem we can live without it, although I wonder if this causes us unnecessary debugging later so unless they cause regressions they could be merged).
I still don't get video output but at least it talks to the GPU chip now so it can be debugged and improved (this will either need emulating the correct chip the firmware has a driver for or an OF compliant ROM for the emulated card). As before the I2C part (patches 6-8) is RFC and unfinished but the first 5 patches should be good enough now. I hope someone can take care of I2C, I can look at the ati-vga side later. Regards, BALATON Zoltan BALATON Zoltan (8): mac_oldworld: Allow loading binary ROM image mac_newworld: Allow loading binary ROM image mac_oldworld: Drop a variable, use get_system_memory() directly mac_oldworld: Drop some variables mac_oldworld: Change PCI address of macio to match real hardware i2c: Match parameters of i2c_start_transfer and i2c_send_recv WIP macio/cuda: Attempt to add i2c support mac_oldworld: Add SPD data to cover RAM hw/display/sm501.c | 2 +- hw/i2c/core.c | 34 +++++++------- hw/i2c/ppc4xx_i2c.c | 2 +- hw/misc/macio/cuda.c | 76 ++++++++++++++++++++++++++++++- hw/ppc/mac.h | 2 - hw/ppc/mac_newworld.c | 22 +++++---- hw/ppc/mac_oldworld.c | 86 +++++++++++++++++++++++------------- include/hw/i2c/i2c.h | 4 +- include/hw/misc/macio/cuda.h | 1 + 9 files changed, 167 insertions(+), 62 deletions(-) -- 2.21.3
