[PATCH] bootwrapper: Enable non-secure access to the CCI

We boot the kernel in non-secure mode and by default access to the CCI device is not enabled for non-secure access, so we must enable this if we want Linux to manage CPU hotplug on big.LITTLE models.

Signed-off-by: Jon Medhurst tixy@linaro.org --- semi_loader.c | 2 ++ 1 file changed, 2 insertions(+)

diff --git a/semi_loader.c b/semi_loader.c index f8be94d..f9d36e5 100644 --- a/semi_loader.c +++ b/semi_loader.c @@ -263,6 +263,8 @@ static void init_cci(unsigned cci) /* Wait while change pending bit of status register is set */ while(io32(cci+0xc) & 0x1) {} + + io32(cci+0x8) = 1; /* Enable non-secure access to CCI */ }

static void configure_from_fdt(struct loader_info *info)