LOCAL / arm64: dts: Add the support for memory busfreq on Exynos5433-based tm2 board

This patch adds the memory and PPMU dt node to support the generic exynos
memory bus frequency driver by using DEVFREQ / DEVFREQ-Event framework.

Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>

diff --git a/arch/arm64/boot/dts/exynos/exynos5433-tm2.dts b/arch/arm64/boot/dts/exynos/exynos5433-tm2.dts
index 4d1a761..0ce7fbc 100644 (file)
--- a/arch/arm64/boot/dts/exynos/exynos5433-tm2.dts
+++ b/arch/arm64/boot/dts/exynos/exynos5433-tm2.dts
@@ -807,6 +807,82 @@
        };
 };
 
+&ppmu_d0_cpu {
+       status = "okay";
+
+       events {
+               ppmu_d0_cpu_3: ppmu-event3-d0-cpu {
+                       event-name = "ppmu-event3-d0-cpu";
+               };
+       };
+};
+
+&ppmu_d0_general {
+       status = "okay";
+
+       events {
+               ppmu_d0_general_0: ppmu-event0-d0-general {
+                       event-name = "ppmu-event0-d0-general";
+               };
+       };
+};
+
+&ppmu_d0_rt {
+       status = "okay";
+
+       events {
+               ppmu_d0_rt_3: ppmu-event3-d0-rt {
+                       event-name = "ppmu-event3-d0-rt";
+               };
+       };
+};
+
+&ppmu_d1_cpu {
+       status = "okay";
+
+       events {
+               ppmu_d1_cpu_3: ppmu-event3-d1-cpu {
+                       event-name = "ppmu-event3-d1-cpu";
+               };
+       };
+};
+
+&ppmu_d1_general {
+       status = "okay";
+
+       events {
+               ppmu_d1_general_0: ppmu-event0-d1-general {
+                       event-name = "ppmu-event0-d1-general";
+               };
+       };
+};
+
+&ppmu_d1_rt {
+       status = "okay";
+
+       events {
+               ppmu_d1_rt_3: ppmu-event3-d1-rt {
+                       event-name = "ppmu-event3-d1-rt";
+               };
+       };
+};
+
+&memory_bus_int {
+       devfreq-events = <&ppmu_d0_general_0>,
+                        <&ppmu_d1_general_0>;
+       vdd-mem-supply = <&buck4_reg>;
+       exynos,saturation-ratio = <10>;
+       status = "okay";
+};
+
+&memory_bus_mif {
+       devfreq-events = <&ppmu_d0_cpu_3>,
+                        <&ppmu_d1_cpu_3>;
+       vdd-mem-supply = <&buck1_reg>;
+       exynos,saturation-ratio = <10>;
+       status = "okay";
+};
+
 &xxti {
        clock-frequency = <24000000>;
 };