hi,
i saw Nico's git for the developing the big.LITTLE's cluster power control for MP. In the kernel code. the cluster's first man need enable the CCI's port and snooping for the cluster in non-secure world; In CCI-400's spec, it says need to set the Secure Access Register (0x90008) bit 0 so that we can enable non-secure access to CCI-400 registers.
On fast model, i added the code in boot-wrapper to set bit_0 for CCI's Secure Access Register; but after set this bit, the boot-wrapper code cannot change to hypervisor mode successfully.
On fast model, can we use CCI's secure access register? Current i use the fast model version is: FE000-KT-00002-r7p1-80rel0.tgz, so if it's related with the fast model's version?
Also, could u kindly point out there have boot-swapper's git for reference?