sunxi: Enable non-secure access to RTC on sun6i (A31s)
On the A31s the RTC is by default secured. Thus when u-boot
loads the kernel in non-secure world, the RTC is unavailable. The
SoC has a TrustZone Protection Controller, which can be used to
enable non-secure access to the RTC.
On the A31 the TZPC doesn't seem to do anything, i.e. changes to
its register contents do not affect access to the RTC.
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
diff --git a/arch/arm/cpu/armv7/sunxi/Makefile b/arch/arm/cpu/armv7/sunxi/Makefile
index 76c7e55..459d5d8 100644
--- a/arch/arm/cpu/armv7/sunxi/Makefile
+++ b/arch/arm/cpu/armv7/sunxi/Makefile
@@ -28,6 +28,7 @@
obj-$(CONFIG_MACH_SUN7I) += clock_sun4i.o
obj-$(CONFIG_MACH_SUN8I) += clock_sun6i.o
obj-$(CONFIG_MACH_SUN9I) += clock_sun9i.o
+obj-$(CONFIG_MACH_SUN6I) += tzpc.o
obj-$(CONFIG_AXP152_POWER) += pmic_bus.o
obj-$(CONFIG_AXP209_POWER) += pmic_bus.o