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| author | Patrick Delaunay <patrick.delaunay@st.com> | 2020-05-25 12:19:42 +0200 |
|---|---|---|
| committer | Patrick Delaunay <patrick.delaunay@st.com> | 2020-07-07 16:01:23 +0200 |
| commit | 6f2e0ad1945a188d39e759f7b87a66cc9274ecc1 (patch) | |
| tree | eae377e93b1a76502eae8916382ac66a658dc2f9 | |
| parent | 95bd49a5aa8bd7b1018e7de1ff547efa54552e62 (diff) | |
| download | u-boot-6f2e0ad1945a188d39e759f7b87a66cc9274ecc1.tar.gz | |
ARM: dts: stm32: add cpufreq support on stm32mp15x
This commit adds cpufreq support on stm32mp15x SOC. STM32 cpufreq uses
operating points V2 bindings (no legacy). Nvmem cells have to be used to
know the chip version and then which OPPs are available. Note that STM32
cpufreq driver is mainly based on "cpufreq-dt" driver.
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
| -rw-r--r-- | arch/arm/dts/stm32mp151.dtsi | 21 | ||||
| -rw-r--r-- | arch/arm/dts/stm32mp157c-ed1.dts | 8 | ||||
| -rw-r--r-- | arch/arm/dts/stm32mp15xx-dkx.dtsi | 8 |
3 files changed, 37 insertions, 0 deletions
diff --git a/arch/arm/dts/stm32mp151.dtsi b/arch/arm/dts/stm32mp151.dtsi index 75d2c0d296e..d5216a18313 100644 --- a/arch/arm/dts/stm32mp151.dtsi +++ b/arch/arm/dts/stm32mp151.dtsi @@ -20,6 +20,24 @@ clock-frequency = <650000000>; device_type = "cpu"; reg = <0>; + operating-points-v2 = <&cpu0_opp_table>; + nvmem-cells = <&part_number_otp>; + nvmem-cell-names = "part_number"; + }; + }; + + cpu0_opp_table: cpu0-opp-table { + compatible = "operating-points-v2"; + opp-shared; + opp-650000000 { + opp-hz = /bits/ 64 <650000000>; + opp-microvolt = <1200000>; + opp-supported-hw = <0x1>; + }; + opp-800000000 { + opp-hz = /bits/ 64 <800000000>; + opp-microvolt = <1350000>; + opp-supported-hw = <0x2>; }; }; @@ -1522,6 +1540,9 @@ reg = <0x5c005000 0x400>; #address-cells = <1>; #size-cells = <1>; + part_number_otp: part_number_otp@4 { + reg = <0x4 0x1>; + }; ts_cal1: calib@5c { reg = <0x5c 0x2>; }; diff --git a/arch/arm/dts/stm32mp157c-ed1.dts b/arch/arm/dts/stm32mp157c-ed1.dts index 186dc467544..c4c1202789d 100644 --- a/arch/arm/dts/stm32mp157c-ed1.dts +++ b/arch/arm/dts/stm32mp157c-ed1.dts @@ -107,6 +107,14 @@ }; }; +&cpu0{ + cpu-supply = <&vddcore>; +}; + +&cpu1{ + cpu-supply = <&vddcore>; +}; + &dac { pinctrl-names = "default"; pinctrl-0 = <&dac_ch1_pins_a &dac_ch2_pins_a>; diff --git a/arch/arm/dts/stm32mp15xx-dkx.dtsi b/arch/arm/dts/stm32mp15xx-dkx.dtsi index 7589c6f9dc5..e7a46e7b5fb 100644 --- a/arch/arm/dts/stm32mp15xx-dkx.dtsi +++ b/arch/arm/dts/stm32mp15xx-dkx.dtsi @@ -116,6 +116,14 @@ status = "okay"; }; +&cpu0{ + cpu-supply = <&vddcore>; +}; + +&cpu1{ + cpu-supply = <&vddcore>; +}; + ðernet0 { status = "okay"; pinctrl-0 = <ðernet0_rgmii_pins_a>; |