Found it!
The i.MX6QuadPlus has two pairs of PREs, which use the extended
section of the iRAM. The Classic does not have any PREs or extended
iRAM:
pre1: pre@21c8000 {
compatible = "fsl,imx6qp-pre";
<snip>
fsl,iram = <&ocram2>;
};
pre3: pre@21ca000 {
compatible = "fsl,imx6qp-pre";
<snip>
fsl,iram = <&ocram3>;
};
The CODA (VPU) driver uses the common section of iRAM:
vpu: vpu@2040000 {
compatible = "cnm,coda960";
<snip>
iram = <&ocram>;
};
The VPU or the PREs are overrunning their assigned iRAM area. How do I
know? Because if I change the PRE iRAM order, the problem disappears!
PRE1: ocram2 change to ocram3
PRE2: ocram2 change to ocram3
PRE3: ocram3 change to ocram2
PRE4: ocram3 change to ocram2
Sven
