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Wysocki" , Viresh Kumar , Lee Jones , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Nishanth Menon , Vignesh Raghavendra , Tero Kristo CC: Vibhore Vardhan , , , , , Bryan Brattlof X-Mailer: b4 0.13.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=3800; i=bb@ti.com; h=from:subject:message-id; bh=FZHOMpGaEYP5IB+9r4ZvFHZhBO9oepJfS8PBFrnej8M=; b=owNCWmg5MUFZJlNZuKejSQAAaP///vf5+2u0e9rzv/P3++//b/rn6dc/2/Mz/3vu197z62awA RsYkPRAAAAAADIGgAaAyANAABoGhoAAHqAAAAPUD1Gh6TJ6QGjaaTynkIgA0GgADQGgGgyNADQG h6gyDQABmoDTymhkAGmmTRtTIANADRtTQMmgPU0aPUOhkaNDQBppiaAyNMjTQNMg0yaaaGIAMgM jIAMmjRkDRkyANAA00GmQaGINDQAIE2CVISOBxmCSBwYWEix1m/Pnok2upFe4gWtDwwBK4agMx5 UDlE0W4xlDAyDwSZUQJtkaMr1I0BHImeLOxRE4nWrCMpeqwyxAIEVRZFiY+2qQkFqXcnz5UudBm guPPcktcqNHd9YrXYgAuxQFky7xzWbD6CsSp51PSwJ+FenRJqoFDHw5Ncv1hm5vtRoCWdPQTQM1 E7PlKdOt+IzmAJQhgLzCf59H0khUlGKJ/HFpUwkwwmcEb3ByZEGQMPQUT0o98IM4H4Ikyp+4vK7 GTzbdwTDYKKQ4iX6xiqFwEZvLUJotOiS9AoYnaEIkMqUveaIRpqEfzjVdKCoKO/kLPqm85ZE2DB HoUn0rQfoB8b7q7lSAXwrEBy9nXXFwxxymYAwUbMkTz3Ykr6fcPCtYxJ6iLeV844LctcwrzZ+2U XLTBpJEAcyJ/i7kinChIXFPRpI= X-Developer-Key: i=bb@ti.com; a=openpgp; fpr=D3D177E40A38DF4D1853FEEF41B90D5D71D56CE0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240612_094216_876139_E7D71EF0 X-CRM114-Status: GOOD ( 11.59 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org To help reduce power consumption, reduce the frequency of the CPU cores when they sit idle by specifying their supported OPP entries. Signed-off-by: Bryan Brattlof --- arch/arm64/boot/dts/ti/k3-am62a-wakeup.dtsi | 5 +++ arch/arm64/boot/dts/ti/k3-am62a7-sk.dts | 9 +++++ arch/arm64/boot/dts/ti/k3-am62a7.dtsi | 51 +++++++++++++++++++++++++++++ 3 files changed, 65 insertions(+) diff --git a/arch/arm64/boot/dts/ti/k3-am62a-wakeup.dtsi b/arch/arm64/boot/dts/ti/k3-am62a-wakeup.dtsi index 98043e9aa316b..bf16b29c3953b 100644 --- a/arch/arm64/boot/dts/ti/k3-am62a-wakeup.dtsi +++ b/arch/arm64/boot/dts/ti/k3-am62a-wakeup.dtsi @@ -13,6 +13,11 @@ wkup_conf: syscon@43000000 { #size-cells = <1>; ranges = <0x00 0x00 0x43000000 0x20000>; + opp_efuse_table: syscon@18 { + compatible = "ti,am62-opp-efuse-table", "syscon"; + reg = <0x18 0x4>; + }; + chipid: chipid@14 { compatible = "ti,am654-chipid"; reg = <0x14 0x4>; diff --git a/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts b/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts index f241637a5642a..852a066585d6d 100644 --- a/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts +++ b/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts @@ -59,6 +59,15 @@ wkup_r5fss0_core0_memory_region: r5f-dma-memory@9c900000 { }; }; + opp-table { + /* Add 1.4GHz OPP for am62p5-sk board. Requires VDD_CORE at 0v85 */ + opp-1400000000 { + opp-hz = /bits/ 64 <1400000000>; + opp-supported-hw = <0x01 0x0004>; + clock-latency-ns = <6000000>; + }; + }; + vmain_pd: regulator-0 { /* TPS25750 PD CONTROLLER OUTPUT */ compatible = "regulator-fixed"; diff --git a/arch/arm64/boot/dts/ti/k3-am62a7.dtsi b/arch/arm64/boot/dts/ti/k3-am62a7.dtsi index f86a23404e6dd..b77390b66efa5 100644 --- a/arch/arm64/boot/dts/ti/k3-am62a7.dtsi +++ b/arch/arm64/boot/dts/ti/k3-am62a7.dtsi @@ -48,6 +48,8 @@ cpu0: cpu@0 { d-cache-line-size = <64>; d-cache-sets = <128>; next-level-cache = <&L2_0>; + operating-points-v2 = <&a53_opp_table>; + clocks = <&k3_clks 135 0>; }; cpu1: cpu@1 { @@ -62,6 +64,8 @@ cpu1: cpu@1 { d-cache-line-size = <64>; d-cache-sets = <128>; next-level-cache = <&L2_0>; + operating-points-v2 = <&a53_opp_table>; + clocks = <&k3_clks 136 0>; }; cpu2: cpu@2 { @@ -76,6 +80,8 @@ cpu2: cpu@2 { d-cache-line-size = <64>; d-cache-sets = <128>; next-level-cache = <&L2_0>; + operating-points-v2 = <&a53_opp_table>; + clocks = <&k3_clks 137 0>; }; cpu3: cpu@3 { @@ -90,6 +96,51 @@ cpu3: cpu@3 { d-cache-line-size = <64>; d-cache-sets = <128>; next-level-cache = <&L2_0>; + operating-points-v2 = <&a53_opp_table>; + clocks = <&k3_clks 138 0>; + }; + }; + + a53_opp_table: opp-table { + compatible = "operating-points-v2-ti-cpu"; + opp-shared; + syscon = <&wkup_conf>; + + opp-200000000 { + opp-hz = /bits/ 64 <200000000>; + opp-supported-hw = <0x01 0x0007>; + clock-latency-ns = <6000000>; + }; + + opp-400000000 { + opp-hz = /bits/ 64 <400000000>; + opp-supported-hw = <0x01 0x0007>; + clock-latency-ns = <6000000>; + }; + + opp-600000000 { + opp-hz = /bits/ 64 <600000000>; + opp-supported-hw = <0x01 0x0007>; + clock-latency-ns = <6000000>; + }; + + opp-800000000 { + opp-hz = /bits/ 64 <800000000>; + opp-supported-hw = <0x01 0x0007>; + clock-latency-ns = <6000000>; + }; + + opp-1000000000 { + opp-hz = /bits/ 64 <1000000000>; + opp-supported-hw = <0x01 0x0006>; + clock-latency-ns = <6000000>; + }; + + opp-1250000000 { + opp-hz = /bits/ 64 <1250000000>; + opp-supported-hw = <0x01 0x0004>; + clock-latency-ns = <6000000>; + opp-suspend; }; };