I have a need to wait in the M3 code on resume for a indicator from the power module that we have enough power to start up the rest of the chip.
This happened to be on gpio 2 module. Now When I try to access that module the chip halts. or something I don't have a jtag so I'm not sure what the issue really is.
For testing I access the registers in the init code on the M3 as that is run just after the code is loaded and the chip has power and clocks to the gpio 2 for sure. but it still fails. first access and the M3 is gone.
I have a previous question about the memmory map seen from the M3 here http://e2e.ti.com/support/arm/sitara_arm/f/791/t/351141.aspx
I really would like to know what it can and can not do.
