On Fri, 2016-09-23 at 17:38 +0100, Sudeep Holla wrote:
Commit f225d39d3093 ("vexpress: Check TC2 firmware support before defaulting to nonsec booting") added support to check if the firmware on TC2 is configured appropriately before booting in nonsec/hyp mode.
However when booting in non-secure/hyp mode, CCI control must be done in secure firmware and can't be done in non-secure/hyp mode. In order to ensure that, this patch disables the cci slave port inteface so that it is not accessed at all.
Cc: Jon Medhurst tixy@linaro.org Acked-by: Marc Zyngier marc.zyngier@arm.com Signed-off-by: Sudeep Holla sudeep.holla@arm.com
This works for me (unsurprisingly) when booting in secure mode. What kernel and firmware config do I need to use for non-sec mode? I tried vexpress_defconfig, with bits 12 and 13 cleared in SCC: 0x700 but I get nothing out the console after "Starting kernel ..."