[RFC PATCH 7/8] ARM: dts: qcom: msm8960: add L2 cache scaling

[Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>]

Populate L2 cache node with clock, supplies and OPP information to
facilitate scaling L2 frequency.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
---
 arch/arm/boot/dts/qcom/qcom-msm8960-cdp.dts   |   5 +
 .../qcom/qcom-msm8960-samsung-expressatt.dts  |   5 +
 arch/arm/boot/dts/qcom/qcom-msm8960.dtsi      | 124 +++++++++++++++++-
 3 files changed, 133 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/qcom/qcom-msm8960-cdp.dts b/arch/arm/boot/dts/qcom/qcom-msm8960-cdp.dts
index cba0d1e460a1..2f73f058d855 100644
--- a/arch/arm/boot/dts/qcom/qcom-msm8960-cdp.dts
+++ b/arch/arm/boot/dts/qcom/qcom-msm8960-cdp.dts
@@ -336,6 +336,11 @@ pm8921_ncp: ncp {
 	};
 };
 
+&L2 {
+	vdd-mem-supply = <&pm8921_l24>;
+	vdd-dig-supply = <&pm8921_s3>;
+};
+
 /* eMMC */
 &sdcc1 {
 	status = "okay";
diff --git a/arch/arm/boot/dts/qcom/qcom-msm8960-samsung-expressatt.dts b/arch/arm/boot/dts/qcom/qcom-msm8960-samsung-expressatt.dts
index 6bc02bf25120..7132255c7003 100644
--- a/arch/arm/boot/dts/qcom/qcom-msm8960-samsung-expressatt.dts
+++ b/arch/arm/boot/dts/qcom/qcom-msm8960-samsung-expressatt.dts
@@ -321,6 +321,11 @@ pm8921_ncp: ncp {
 	};
 };
 
+&L2 {
+	vdd-mem-supply = <&pm8921_l24>;
+	vdd-dig-supply = <&pm8921_s3>;
+};
+
 &usb_hs1_phy {
 	v3p3-supply = <&pm8921_l3>;
 	v1p8-supply = <&pm8921_l4>;
diff --git a/arch/arm/boot/dts/qcom/qcom-msm8960.dtsi b/arch/arm/boot/dts/qcom/qcom-msm8960.dtsi
index 65065276c885..48b3962dd4fb 100644
--- a/arch/arm/boot/dts/qcom/qcom-msm8960.dtsi
+++ b/arch/arm/boot/dts/qcom/qcom-msm8960.dtsi
@@ -2,6 +2,7 @@
 /dts-v1/;
 
 #include <dt-bindings/interrupt-controller/arm-gic.h>
+#include <dt-bindings/clock/qcom,krait-cc.h>
 #include <dt-bindings/clock/qcom,gcc-msm8960.h>
 #include <dt-bindings/reset/qcom,gcc-msm8960.h>
 #include <dt-bindings/clock/qcom,lcc-msm8960.h>
@@ -41,9 +42,130 @@ cpu@1 {
 		};
 
 		L2: l2-cache {
-			compatible = "cache";
+			compatible = "qcom,krait-l2-cache", "cache";
 			cache-level = <2>;
 			cache-unified;
+			clocks = <&kraitcc KRAIT_L2>;
+			#interconnect-cells = <1>;
+			operating-points-v2 = <&l2_opp_table>;
+
+			l2_opp_table: opp-table-l2 {
+				compatible = "operating-points-v2";
+
+				opp-384000000 {
+					opp-hz = /bits/ 64 <384000000>;
+					opp-microvolt = <1050000 1050000 1150000>,
+							<1050000 1050000 1150000>;
+				};
+
+				opp-432000000 {
+					opp-hz = /bits/ 64 <432000000>;
+					opp-microvolt = <1050000 1050000 1150000>,
+							<1050000 1050000 1150000>;
+				};
+
+				opp-486000000 {
+					opp-hz = /bits/ 64 <486000000>;
+					opp-microvolt = <1050000 1050000 1150000>,
+							<1050000 1050000 1150000>;
+				};
+
+				opp-540000000 {
+					opp-hz = /bits/ 64 <540000000>;
+					opp-microvolt = <1050000 1050000 1150000>,
+							<1050000 1050000 1150000>;
+				};
+
+				opp-594000000 {
+					opp-hz = /bits/ 64 <594000000>;
+					opp-microvolt = <1050000 1050000 1150000>,
+							<1050000 1050000 1150000>;
+				};
+
+				opp-648000000 {
+					opp-hz = /bits/ 64 <648000000>;
+					opp-microvolt = <1050000 1050000 1150000>,
+							<1050000 1050000 1150000>;
+				};
+
+				opp-702000000 {
+					opp-hz = /bits/ 64 <702000000>;
+					opp-microvolt = <1050000 1050000 1050000>,
+							<1050000 1050000 1050000>;
+				};
+
+				opp-756000000 {
+					opp-hz = /bits/ 64 <756000000>;
+					opp-microvolt = <1150000 1150000 1150000>,
+							<1150000 1150000 1150000>;
+				};
+
+				opp-810000000 {
+					opp-hz = /bits/ 64 <810000000>;
+					opp-microvolt = <1150000 1150000 1150000>,
+							<1150000 1150000 1150000>;
+				};
+
+				opp-864000000 {
+					opp-hz = /bits/ 64 <864000000>;
+					opp-microvolt = <1150000 1150000 1150000>,
+							<1150000 1150000 1150000>;
+				};
+
+				opp-918000000 {
+					opp-hz = /bits/ 64 <918000000>;
+					opp-microvolt = <1150000 1150000 1150000>,
+							<1150000 1150000 1150000>;
+				};
+
+				opp-972000000 {
+					opp-hz = /bits/ 64 <972000000>;
+					opp-microvolt = <1150000 1150000 1150000>,
+							<1150000 1150000 1150000>;
+				};
+
+				opp-1026000000 {
+					opp-hz = /bits/ 64 <1026000000>;
+					opp-microvolt = <1150000 1150000 1150000>,
+							<1150000 1150000 1150000>;
+				};
+
+				opp-1080000000 {
+					opp-hz = /bits/ 64 <1080000000>;
+					opp-microvolt = <1150000 1150000 1150000>,
+							<1150000 1150000 1150000>;
+				};
+
+				opp-1134000000 {
+					opp-hz = /bits/ 64 <1134000000>;
+					opp-microvolt = <1150000 1150000 1150000>,
+							<1150000 1150000 1150000>;
+				};
+
+				opp-1188000000 {
+					opp-hz = /bits/ 64 <1188000000>;
+					opp-microvolt = <1150000 1150000 1150000>,
+							<1150000 1150000 1150000>;
+				};
+
+				opp-1242000000 {
+					opp-hz = /bits/ 64 <1242000000>;
+					opp-microvolt = <1150000 1150000 1150000>,
+							<1150000 1150000 1150000>;
+				};
+
+				opp-1296000000 {
+					opp-hz = /bits/ 64 <1296000000>;
+					opp-microvolt = <1150000 1150000 1150000>,
+							<1150000 1150000 1150000>;
+				};
+
+				opp-1350000000 {
+					opp-hz = /bits/ 64 <1350000000>;
+					opp-microvolt = <1150000 1150000 1150000>,
+							<1150000 1150000 1150000>;
+				};
+			};
 		};
 	};
 
-- 
2.39.2