arm64: dts: hi3660: Add CPU frequency scaling support

Add two CPU OPP tables, one table is corresponding to one cluster,
which allow CPU frequency scaling on hi3660 platforms.

Signed-off-by: Leo Yan <leo.yan@linaro.org>
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>

diff --git a/arch/arm64/boot/dts/hisilicon/hi3660.dtsi b/arch/arm64/boot/dts/hisilicon/hi3660.dtsi
index 3a3bcff..a39da09 100644 (file)
--- a/arch/arm64/boot/dts/hisilicon/hi3660.dtsi
+++ b/arch/arm64/boot/dts/hisilicon/hi3660.dtsi
@@ -62,6 +62,8 @@
                        next-level-cache = <&A53_L2>;
                        cpu-idle-states = <&CPU_SLEEP &CLUSTER_SLEEP_0>;
                        capacity-dmips-mhz = <592>;
+                       clocks = <&stub_clock HI3660_CLK_STUB_CLUSTER0>;
+                       operating-points-v2 = <&cluster0_opp>;
                };
 
                cpu1: cpu@1 {
@@ -72,6 +74,8 @@
                        next-level-cache = <&A53_L2>;
                        cpu-idle-states = <&CPU_SLEEP &CLUSTER_SLEEP_0>;
                        capacity-dmips-mhz = <592>;
+                       clocks = <&stub_clock HI3660_CLK_STUB_CLUSTER0>;
+                       operating-points-v2 = <&cluster0_opp>;
                };
 
                cpu2: cpu@2 {
@@ -82,6 +86,8 @@
                        next-level-cache = <&A53_L2>;
                        cpu-idle-states = <&CPU_SLEEP &CLUSTER_SLEEP_0>;
                        capacity-dmips-mhz = <592>;
+                       clocks = <&stub_clock HI3660_CLK_STUB_CLUSTER0>;
+                       operating-points-v2 = <&cluster0_opp>;
                };
 
                cpu3: cpu@3 {
@@ -92,6 +98,8 @@
                        next-level-cache = <&A53_L2>;
                        cpu-idle-states = <&CPU_SLEEP &CLUSTER_SLEEP_0>;
                        capacity-dmips-mhz = <592>;
+                       clocks = <&stub_clock HI3660_CLK_STUB_CLUSTER0>;
+                       operating-points-v2 = <&cluster0_opp>;
                };
 
                cpu4: cpu@100 {
@@ -102,6 +110,8 @@
                        next-level-cache = <&A73_L2>;
                        cpu-idle-states = <&CPU_SLEEP &CLUSTER_SLEEP_1>;
                        capacity-dmips-mhz = <1024>;
+                       clocks = <&stub_clock HI3660_CLK_STUB_CLUSTER1>;
+                       operating-points-v2 = <&cluster1_opp>;
                };
 
                cpu5: cpu@101 {
@@ -112,6 +122,8 @@
                        next-level-cache = <&A73_L2>;
                        cpu-idle-states = <&CPU_SLEEP &CLUSTER_SLEEP_1>;
                        capacity-dmips-mhz = <1024>;
+                       clocks = <&stub_clock HI3660_CLK_STUB_CLUSTER1>;
+                       operating-points-v2 = <&cluster1_opp>;
                };
 
                cpu6: cpu@102 {
@@ -122,6 +134,8 @@
                        next-level-cache = <&A73_L2>;
                        cpu-idle-states = <&CPU_SLEEP &CLUSTER_SLEEP_1>;
                        capacity-dmips-mhz = <1024>;
+                       clocks = <&stub_clock HI3660_CLK_STUB_CLUSTER1>;
+                       operating-points-v2 = <&cluster1_opp>;
                };
 
                cpu7: cpu@103 {
@@ -132,6 +146,8 @@
                        next-level-cache = <&A73_L2>;
                        cpu-idle-states = <&CPU_SLEEP &CLUSTER_SLEEP_1>;
                        capacity-dmips-mhz = <1024>;
+                       clocks = <&stub_clock HI3660_CLK_STUB_CLUSTER1>;
+                       operating-points-v2 = <&cluster1_opp>;
                };
 
                idle-states {
@@ -174,6 +190,76 @@
                };
        };
 
+       cluster0_opp: opp_table0 {
+               compatible = "operating-points-v2";
+               opp-shared;
+
+               opp00 {
+                       opp-hz = /bits/ 64 <533000000>;
+                       opp-microvolt = <700000>;
+                       clock-latency-ns = <300000>;
+               };
+
+               opp01 {
+                       opp-hz = /bits/ 64 <999000000>;
+                       opp-microvolt = <800000>;
+                       clock-latency-ns = <300000>;
+               };
+
+               opp02 {
+                       opp-hz = /bits/ 64 <1402000000>;
+                       opp-microvolt = <900000>;
+                       clock-latency-ns = <300000>;
+               };
+
+               opp03 {
+                       opp-hz = /bits/ 64 <1709000000>;
+                       opp-microvolt = <1000000>;
+                       clock-latency-ns = <300000>;
+               };
+
+               opp04 {
+                       opp-hz = /bits/ 64 <1844000000>;
+                       opp-microvolt = <1100000>;
+                       clock-latency-ns = <300000>;
+               };
+       };
+
+       cluster1_opp: opp_table1 {
+               compatible = "operating-points-v2";
+               opp-shared;
+
+               opp10 {
+                       opp-hz = /bits/ 64 <903000000>;
+                       opp-microvolt = <700000>;
+                       clock-latency-ns = <300000>;
+               };
+
+               opp11 {
+                       opp-hz = /bits/ 64 <1421000000>;
+                       opp-microvolt = <800000>;
+                       clock-latency-ns = <300000>;
+               };
+
+               opp12 {
+                       opp-hz = /bits/ 64 <1805000000>;
+                       opp-microvolt = <900000>;
+                       clock-latency-ns = <300000>;
+               };
+
+               opp13 {
+                       opp-hz = /bits/ 64 <2112000000>;
+                       opp-microvolt = <1000000>;
+                       clock-latency-ns = <300000>;
+               };
+
+               opp14 {
+                       opp-hz = /bits/ 64 <2362000000>;
+                       opp-microvolt = <1100000>;
+                       clock-latency-ns = <300000>;
+               };
+       };
+
        gic: interrupt-controller@e82b0000 {
                compatible = "arm,gic-400";
                reg = <0x0 0xe82b1000 0 0x1000>, /* GICD */