diff mbox series

[v3,8/8] arm64: dts: qcom: ipq9574: populate the opp table based on the eFuse

Message ID 5d1bf44de58db10a20d1b116c7fd4b073d01271e.1697600121.git.quic_varada@quicinc.com
State Superseded
Headers show
Series Enable cpufreq for IPQ5332 & IPQ9574 | expand

Commit Message

Varadarajan Narayanan Oct. 18, 2023, 9:29 a.m. UTC 
IPQ95xx SoCs have different OPPs available for the CPU based on
SoC variant. This can be determined from an eFuse register
present in the silicon.

Add support to read the eFuse and populate the OPPs based on it.

Frequency	1.2GHz	1.8GHz	1.5GHz	No	opp-supported-hw
					Limit
------------------------------------------------------------
936000000	1	1	1	1	0xf
1104000000	1	1	1	1	0xf
1200000000	1	1	1	1	0xf
1416000000	0	1	1	1	0x7
1488000000	0	1	1	1	0x7
1800000000	0	1	0	1	0x5
2208000000	0	0	0	1	0x1
-----------------------------------------------------------

Signed-off-by: Kathiravan T <quic_kathirav@quicinc.com>
Signed-off-by: Varadarajan Narayanan <quic_varada@quicinc.com>
---
v2:	cpu_speed_bin -> cpu-speed-bin in node name
	Move comment to commit log
---
 arch/arm64/boot/dts/qcom/ipq9574.dtsi | 21 ++++++++++++++++++++-
 1 file changed, 20 insertions(+), 1 deletion(-)

Comments

Konrad Dybcio Oct. 18, 2023, 8:10 p.m. UTC | #1 
On 10/18/23 11:29, Varadarajan Narayanan wrote:
> IPQ95xx SoCs have different OPPs available for the CPU based on
> SoC variant. This can be determined from an eFuse register
> present in the silicon.
> 
> Add support to read the eFuse and populate the OPPs based on it.
> 
> Frequency	1.2GHz	1.8GHz	1.5GHz	No	opp-supported-hw
> 					Limit
> ------------------------------------------------------------
> 936000000	1	1	1	1	0xf
> 1104000000	1	1	1	1	0xf
> 1200000000	1	1	1	1	0xf
> 1416000000	0	1	1	1	0x7
> 1488000000	0	1	1	1	0x7
> 1800000000	0	1	0	1	0x5
> 2208000000	0	0	0	1	0x1
> -----------------------------------------------------------
> 
> Signed-off-by: Kathiravan T <quic_kathirav@quicinc.com>
> Signed-off-by: Varadarajan Narayanan <quic_varada@quicinc.com>
> ---
> v2:	cpu_speed_bin -> cpu-speed-bin in node name
> 	Move comment to commit log
> ---
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>

Konrad
diff mbox series

Patch

diff --git a/arch/arm64/boot/dts/qcom/ipq9574.dtsi b/arch/arm64/boot/dts/qcom/ipq9574.dtsi
index cc84f25..5f83ee4 100644
--- a/arch/arm64/boot/dts/qcom/ipq9574.dtsi
+++ b/arch/arm64/boot/dts/qcom/ipq9574.dtsi
@@ -106,42 +106,56 @@ 
 	};
 
 	cpu_opp_table: opp-table-cpu {
-		compatible = "operating-points-v2";
+		compatible = "operating-points-v2-kryo-cpu";
 		opp-shared;
+		nvmem-cells = <&cpu_speed_bin>;
 
 		opp-936000000 {
 			opp-hz = /bits/ 64 <936000000>;
 			opp-microvolt = <725000>;
+			opp-supported-hw = <0xf>;
 			clock-latency-ns = <200000>;
 		};
 
 		opp-1104000000 {
 			opp-hz = /bits/ 64 <1104000000>;
 			opp-microvolt = <787500>;
+			opp-supported-hw = <0xf>;
+			clock-latency-ns = <200000>;
+		};
+
+		opp-1200000000 {
+			opp-hz = /bits/ 64 <1200000000>;
+			opp-microvolt = <862500>;
+			opp-supported-hw = <0xf>;
 			clock-latency-ns = <200000>;
 		};
 
 		opp-1416000000 {
 			opp-hz = /bits/ 64 <1416000000>;
 			opp-microvolt = <862500>;
+			opp-supported-hw = <0x7>;
 			clock-latency-ns = <200000>;
 		};
 
 		opp-1488000000 {
 			opp-hz = /bits/ 64 <1488000000>;
 			opp-microvolt = <925000>;
+			opp-supported-hw = <0x7>;
 			clock-latency-ns = <200000>;
 		};
 
 		opp-1800000000 {
 			opp-hz = /bits/ 64 <1800000000>;
 			opp-microvolt = <987500>;
+			opp-supported-hw = <0x5>;
 			clock-latency-ns = <200000>;
 		};
 
 		opp-2208000000 {
 			opp-hz = /bits/ 64 <2208000000>;
 			opp-microvolt = <1062500>;
+			opp-supported-hw = <0x1>;
 			clock-latency-ns = <200000>;
 		};
 	};
@@ -223,6 +237,11 @@ 
 			reg = <0x000a4000 0x5a1>;
 			#address-cells = <1>;
 			#size-cells = <1>;
+
+			cpu_speed_bin: cpu-speed-bin@15 {
+				reg = <0x15 0x2>;
+				bits = <7 2>;
+			};
 		};
 
 		cryptobam: dma-controller@704000 {