Hello,
Sometimes when I make request to mailbox properties channel I do not receive an answer back. So the buffer that I supply to mailbox has the same content after call. And wait bit in status register never turns to 0. Has anyone had such problem?
Also I would like to try to reset the whole mailbox device, but I didn't find the documentation that tells how to do so for raspberry. In BCM2835 manual it is said that these registers are not for general usage.
I tried to find something similar in TI manual for AM335** peripherals. It describes register SYSCONFIG where you can set 0-th bit to 1 to start reset. But this did not help me and after mailbox properties channel hangs first time I'm unable to reset it.