ARM: rockchip: enable arm-global-timer

RK2928 and RK3066 contain a dw_apb timer component, while the rk3188 uses
a slightly similar but still different timer component. But all of them
support the ARM-global-timer that got added as clocksource driver recently.

So enable support for it to get a working clocksource for rk3188.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>

2 files changed, 9 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/rk3xxx.dtsi b/arch/arm/boot/dts/rk3xxx.dtsi
index fd3e47699e54..0fcbcfd67de2 100644
--- a/arch/arm/boot/dts/rk3xxx.dtsi
+++ b/arch/arm/boot/dts/rk3xxx.dtsi
@@ -41,6 +41,13 @@
                         cache-level = <2>;
                 };
 
+                global-timer@1013c200 {
+                        compatible = "arm,cortex-a9-global-timer";
+                        reg = <0x1013c200 0x20>;
+                        interrupts = <GIC_PPI 11 0x304>;
+                        clocks = <&dummy150m>;
+                };
+
                 local-timer@1013c600 {
                         compatible = "arm,cortex-a9-twd-timer";
                         reg = <0x1013c600 0x20>;
diff --git a/arch/arm/mach-rockchip/Kconfig b/arch/arm/mach-rockchip/Kconfig
index 25ee12b21f01..6fef4647b6fe 100644
--- a/arch/arm/mach-rockchip/Kconfig
+++ b/arch/arm/mach-rockchip/Kconfig
@@ -11,6 +11,8 @@ config ARCH_ROCKCHIP
         select COMMON_CLK
         select GENERIC_CLOCKEVENTS
         select DW_APB_TIMER_OF
+        select ARM_GLOBAL_TIMER
+        select CLKSRC_ARM_GLOBAL_TIMER_SCHED_CLOCK
         help
           Support for Rockchip's Cortex-A9 Single-to-Quad-Core-SoCs
           containing the RK2928, RK30xx and RK31xx series.