From: Lad Prabhakar <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx> Add OPP table for RZ/V2H(P) SoC. Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx> --- Note, this patch depends on [0] for frequency scaling to work. [0] https://lore.kernel.org/all/20240918135957.290101-1-prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx/ --- arch/arm64/boot/dts/renesas/r9a09g057.dtsi | 41 ++++++++++++++++++++++ 1 file changed, 41 insertions(+) diff --git a/arch/arm64/boot/dts/renesas/r9a09g057.dtsi b/arch/arm64/boot/dts/renesas/r9a09g057.dtsi index 1ad5a1b6917f..396c95bc1b4e 100644 --- a/arch/arm64/boot/dts/renesas/r9a09g057.dtsi +++ b/arch/arm64/boot/dts/renesas/r9a09g057.dtsi @@ -20,6 +20,39 @@ audio_extal_clk: audio-clk { clock-frequency = <0>; }; + /* + * The default cluster table is based on the assumption that the PLLCA55 clock + * frequency is set to 1.7GHz. The PLLCA55 clock frequency can be set to + * 1.7/1.6/1.5/1.1 GHz based on the BOOTPLLCA_0/1 pins (and additionally can be + * clocked to 1.8GHz as well). The table below should be overridden in the board + * DTS based on the PLLCA55 clock frequency. + */ + cluster0_opp: opp-table-0 { + compatible = "operating-points-v2"; + + opp-1700000000 { + opp-hz = /bits/ 64 <1700000000>; + opp-microvolt = <900000>; + clock-latency-ns = <300000>; + }; + opp-850000000 { + opp-hz = /bits/ 64 <850000000>; + opp-microvolt = <900000>; + clock-latency-ns = <300000>; + }; + opp-425000000 { + opp-hz = /bits/ 64 <425000000>; + opp-microvolt = <900000>; + clock-latency-ns = <300000>; + }; + opp-212500000 { + opp-hz = /bits/ 64 <212500000>; + opp-microvolt = <900000>; + clock-latency-ns = <300000>; + opp-suspend; + }; + }; + cpus { #address-cells = <1>; #size-cells = <0>; @@ -30,6 +63,8 @@ cpu0: cpu@0 { device_type = "cpu"; next-level-cache = <&L3_CA55>; enable-method = "psci"; + clocks = <&cpg CPG_CORE R9A09G057_CA55_0_CORE_CLK0>; + operating-points-v2 = <&cluster0_opp>; }; cpu1: cpu@100 { @@ -38,6 +73,8 @@ cpu1: cpu@100 { device_type = "cpu"; next-level-cache = <&L3_CA55>; enable-method = "psci"; + clocks = <&cpg CPG_CORE R9A09G057_CA55_0_CORE_CLK1>; + operating-points-v2 = <&cluster0_opp>; }; cpu2: cpu@200 { @@ -46,6 +83,8 @@ cpu2: cpu@200 { device_type = "cpu"; next-level-cache = <&L3_CA55>; enable-method = "psci"; + clocks = <&cpg CPG_CORE R9A09G057_CA55_0_CORE_CLK2>; + operating-points-v2 = <&cluster0_opp>; }; cpu3: cpu@300 { @@ -54,6 +93,8 @@ cpu3: cpu@300 { device_type = "cpu"; next-level-cache = <&L3_CA55>; enable-method = "psci"; + clocks = <&cpg CPG_CORE R9A09G057_CA55_0_CORE_CLK3>; + operating-points-v2 = <&cluster0_opp>; }; L3_CA55: cache-controller-0 { -- 2.43.0
