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Add the operating-points-v2 table with CPU frequency steps from 200MHz to 1.25GHz to k3-am62l3.dtsi Configure CPU clocks to reference the SCMI clock controller for frequency scaling This enables proper CPU frequency scaling capabilities for the AM62L SoC using the ARM SCMI protocol to interact with the power management firmware. Signed-off-by: Dhruva Gole --- arch/arm64/boot/dts/ti/k3-am62l-wakeup.dtsi | 5 +++ arch/arm64/boot/dts/ti/k3-am62l3.dtsi | 47 +++++++++++++++++++++++++= ++++ 2 files changed, 52 insertions(+) diff --git a/arch/arm64/boot/dts/ti/k3-am62l-wakeup.dtsi b/arch/arm64/boot/= dts/ti/k3-am62l-wakeup.dtsi index 61bfcdcfc66ea8d802a36ed43cd01fbbf3decc70..a42ccd0d2fcc4d204cae81508f8= 39c44ce83f558 100644 --- a/arch/arm64/boot/dts/ti/k3-am62l-wakeup.dtsi +++ b/arch/arm64/boot/dts/ti/k3-am62l-wakeup.dtsi @@ -127,6 +127,11 @@ chipid: chipid@14 { bootph-all; }; =20 + opp_efuse_table: syscon@18 { + compatible =3D "ti,am62-opp-efuse-table", "syscon"; + reg =3D <0x18 0x4>; + }; + cpsw_mac_syscon: ethernet-mac-syscon@2000 { compatible =3D "ti,am62p-cpsw-mac-efuse", "syscon"; reg =3D <0x2000 0x8>; diff --git a/arch/arm64/boot/dts/ti/k3-am62l3.dtsi b/arch/arm64/boot/dts/ti= /k3-am62l3.dtsi index da220b85151227c63f59b2b8ec48ae2ebb37e7bf..f7146421918f7037c6a192cc476= 5e8814a508afc 100644 --- a/arch/arm64/boot/dts/ti/k3-am62l3.dtsi +++ b/arch/arm64/boot/dts/ti/k3-am62l3.dtsi @@ -39,6 +39,8 @@ cpu0: cpu@0 { d-cache-line-size =3D <64>; d-cache-sets =3D <128>; next-level-cache =3D <&l2_0>; + operating-points-v2 =3D <&a53_opp_table>; + clocks =3D <&scmi_clk 356>; }; =20 cpu1: cpu@1 { @@ -53,6 +55,8 @@ cpu1: cpu@1 { d-cache-line-size =3D <64>; d-cache-sets =3D <128>; next-level-cache =3D <&l2_0>; + operating-points-v2 =3D <&a53_opp_table>; + clocks =3D <&scmi_clk 356>; }; }; =20 @@ -64,4 +68,47 @@ l2_0: l2-cache0 { cache-line-size =3D <64>; cache-sets =3D <256>; }; + + a53_opp_table: opp-table { + compatible =3D "operating-points-v2-ti-cpu"; + opp-shared; + syscon =3D <&opp_efuse_table>; + + opp-200000000 { + opp-hz =3D /bits/ 64 <200000000>; + opp-supported-hw =3D <0x01 0x0007>; + clock-latency-ns =3D <6000000>; + }; + + opp-400000000 { + opp-hz =3D /bits/ 64 <400000000>; + opp-supported-hw =3D <0x01 0x0007>; + clock-latency-ns =3D <6000000>; + }; + + opp-600000000 { + opp-hz =3D /bits/ 64 <600000000>; + opp-supported-hw =3D <0x01 0x0007>; + clock-latency-ns =3D <6000000>; + }; + + opp-800000000 { + opp-hz =3D /bits/ 64 <800000000>; + opp-supported-hw =3D <0x01 0x0007>; + clock-latency-ns =3D <6000000>; + }; + + opp-1000000000 { + opp-hz =3D /bits/ 64 <1000000000>; + opp-supported-hw =3D <0x01 0x0006>; + clock-latency-ns =3D <6000000>; + }; + + opp-1250000000 { + opp-hz =3D /bits/ 64 <1250000000>; + opp-supported-hw =3D <0x01 0x0003>; + clock-latency-ns =3D <6000000>; + opp-suspend; + }; + }; }; --=20 2.34.1