cx88 WRITERM instruction

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Hi,

I'm trying to add precise timestamps to the cx88 driver but I
somehow fail to use the WRITERM instruction correctly. Has anyone
ever successfully used that RISC instruction? Is there a bit that
needs to be flipped to actually make it perform writes to the PCI
bus?

I know it is executed because I get a RISC_RD_BERR_INT if I
replace the third word with junk but no matter what I do the target
memory stays untouched (yes, it is coherent memory and I use the DMA
address).

Thanks,

  Daniel
--
To unsubscribe from this list: send the line "unsubscribe linux-media" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html


[Index of Archives]     [Linux Input]     [Video for Linux]     [Gstreamer Embedded]     [Mplayer Users]     [Linux USB Devel]     [Linux Audio Users]     [Linux Kernel]     [Linux SCSI]     [Yosemite Backpacking]
  Powered by Linux