[PATCH v2] arm64: dts: rockchip: Add basic DVFS support for RK3368
From: Romain Perier <hidden>
Date: 2017-08-18 12:17:01
Also in:
linux-devicetree, linux-rockchip
Subsystem:
the rest · Maintainer:
Linus Torvalds
This adds and enable the operating points that have been tested and are currently supported by the SoC. This also adds clocks for ARMCLKL and ARMCLKB. Signed-off-by: Romain Perier <redacted> --- Changes in v2: - Switched to binding v2 for operating-points - Improved commit message - Rebased onto linux-next arch/arm64/boot/dts/rockchip/rk3368.dtsi | 75 +++++++++++++++++++++++++++++++- 1 file changed, 73 insertions(+), 2 deletions(-)
diff --git a/arch/arm64/boot/dts/rockchip/rk3368.dtsi b/arch/arm64/boot/dts/rockchip/rk3368.dtsi
index b6f234f10585..7f42a9111062 100644
--- a/arch/arm64/boot/dts/rockchip/rk3368.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3368.dtsi@@ -113,7 +113,8 @@ compatible = "arm,cortex-a53", "arm,armv8"; reg = <0x0 0x0>; enable-method = "psci"; - + clocks = <&cru ARMCLKL>; + operating-points-v2 = <&cluster0_opp>; #cooling-cells = <2>; /* min followed by max */ };
@@ -122,6 +123,8 @@ compatible = "arm,cortex-a53", "arm,armv8"; reg = <0x0 0x1>; enable-method = "psci"; + clocks = <&cru ARMCLKL>; + operating-points-v2 = <&cluster0_opp>; }; cpu_l2: cpu at 2 {
@@ -129,6 +132,8 @@ compatible = "arm,cortex-a53", "arm,armv8"; reg = <0x0 0x2>; enable-method = "psci"; + clocks = <&cru ARMCLKL>; + operating-points-v2 = <&cluster0_opp>; }; cpu_l3: cpu at 3 {
@@ -136,6 +141,8 @@ compatible = "arm,cortex-a53", "arm,armv8"; reg = <0x0 0x3>; enable-method = "psci"; + clocks = <&cru ARMCLKL>; + operating-points-v2 = <&cluster0_opp>; }; cpu_b0: cpu at 100 {
@@ -143,7 +150,8 @@ compatible = "arm,cortex-a53", "arm,armv8"; reg = <0x0 0x100>; enable-method = "psci"; - + clocks = <&cru ARMCLKB>; + operating-points-v2 = <&cluster1_opp>; #cooling-cells = <2>; /* min followed by max */ };
@@ -152,6 +160,8 @@ compatible = "arm,cortex-a53", "arm,armv8"; reg = <0x0 0x101>; enable-method = "psci"; + clocks = <&cru ARMCLKB>; + operating-points-v2 = <&cluster1_opp>; }; cpu_b2: cpu at 102 {
@@ -159,6 +169,8 @@ compatible = "arm,cortex-a53", "arm,armv8"; reg = <0x0 0x102>; enable-method = "psci"; + clocks = <&cru ARMCLKB>; + operating-points-v2 = <&cluster1_opp>; }; cpu_b3: cpu at 103 {
@@ -166,9 +178,68 @@ compatible = "arm,cortex-a53", "arm,armv8"; reg = <0x0 0x103>; enable-method = "psci"; + clocks = <&cru ARMCLKB>; + operating-points-v2 = <&cluster1_opp>; }; }; + cluster0_opp: opp-table0 { + compatible = "operating-points-v2"; + opp-shared; + + opp00 { + opp-hz = /bits/ 64 <312000000>; + opp-microvolt = <950000>; + clock-latency-ns = <40000>; + }; + opp01 { + opp-hz = /bits/ 64 <408000000>; + opp-microvolt = <950000>; + }; + opp02 { + opp-hz = /bits/ 64 <600000000>; + opp-microvolt = <950000>; + }; + opp03 { + opp-hz = /bits/ 64 <816000000>; + opp-microvolt = <1025000>; + }; + opp04 { + opp-hz = /bits/ 64 <1008000000>; + opp-microvolt = <1125000>; + }; + }; + + cluster1_opp: opp-table1 { + compatible = "operating-points-v2"; + opp-shared; + + opp00 { + opp-hz = /bits/ 64 <312000000>; + opp-microvolt = <950000>; + clock-latency-ns = <40000>; + }; + opp01 { + opp-hz = /bits/ 64 <408000000>; + opp-microvolt = <950000>; + }; + opp02 { + opp-hz = /bits/ 64 <600000000>; + opp-microvolt = <950000>; + }; + opp03 { + opp-hz = /bits/ 64 <816000000>; + opp-microvolt = <975000>; + }; + opp04 { + opp-hz = /bits/ 64 <1008000000>; + opp-microvolt = <1050000>; + }; + }; + + + + amba { compatible = "simple-bus"; #address-cells = <2>;
--
2.11.0