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| author | Leonard Crestez <leonard.crestez@nxp.com> | 2019-04-12 16:10:03 +0200 |
|---|---|---|
| committer | Shawn Guo <shawnguo@kernel.org> | 2019-04-22 03:26:05 +0200 |
| commit | e85c9d0faa75049290f626c70f1374a1bd6d1b24 (patch) | |
| tree | a9fe59a185678d5e3d77a48cc161d35e8dadf70b /arch | |
| parent | arm64: dts: imx8qxp-mek: Add i2c1 with pca9646 (diff) | |
| download | linux-e85c9d0faa75049290f626c70f1374a1bd6d1b24.tar.xz linux-e85c9d0faa75049290f626c70f1374a1bd6d1b24.zip | |
arm64: dts: imx8mm: Add cpufreq properties
This is very similar to imx8mq cpufreq-dt support.
Operating points are from datasheet:
https://www.nxp.com/docs/en/data-sheet/IMX8MMCEC.pdf
Higher opps were omitted (just like imx8mq) because it requires checking
speed grade from OCOTP fuses.
Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm64/boot/dts/freescale/imx8mm.dtsi | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/freescale/imx8mm.dtsi b/arch/arm64/boot/dts/freescale/imx8mm.dtsi index de3498c2dd44..6b407a94c06e 100644 --- a/arch/arm64/boot/dts/freescale/imx8mm.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8mm.dtsi @@ -48,32 +48,44 @@ device_type = "cpu"; compatible = "arm,cortex-a53"; reg = <0x0>; + clock-latency = <61036>; /* two CLK32 periods */ + clocks = <&clk IMX8MM_CLK_ARM>; enable-method = "psci"; next-level-cache = <&A53_L2>; + operating-points-v2 = <&a53_opp_table>; }; A53_1: cpu@1 { device_type = "cpu"; compatible = "arm,cortex-a53"; reg = <0x1>; + clock-latency = <61036>; /* two CLK32 periods */ + clocks = <&clk IMX8MM_CLK_ARM>; enable-method = "psci"; next-level-cache = <&A53_L2>; + operating-points-v2 = <&a53_opp_table>; }; A53_2: cpu@2 { device_type = "cpu"; compatible = "arm,cortex-a53"; reg = <0x2>; + clock-latency = <61036>; /* two CLK32 periods */ + clocks = <&clk IMX8MM_CLK_ARM>; enable-method = "psci"; next-level-cache = <&A53_L2>; + operating-points-v2 = <&a53_opp_table>; }; A53_3: cpu@3 { device_type = "cpu"; compatible = "arm,cortex-a53"; reg = <0x3>; + clock-latency = <61036>; /* two CLK32 periods */ + clocks = <&clk IMX8MM_CLK_ARM>; enable-method = "psci"; next-level-cache = <&A53_L2>; + operating-points-v2 = <&a53_opp_table>; }; A53_L2: l2-cache0 { @@ -81,6 +93,24 @@ }; }; + a53_opp_table: opp-table { + compatible = "operating-points-v2"; + opp-shared; + + opp-1200000000 { + opp-hz = /bits/ 64 <1200000000>; + opp-microvolt = <850000>; + clock-latency-ns = <150000>; + }; + + opp-1600000000 { + opp-hz = /bits/ 64 <1600000000>; + opp-microvolt = <900000>; + clock-latency-ns = <150000>; + opp-suspend; + }; + }; + memory@40000000 { device_type = "memory"; reg = <0x0 0x40000000 0 0x80000000>; |