diff options
| author | Martin Blumenstingl <martin.blumenstingl@googlemail.com> | 2018-11-30 02:00:43 +0300 |
|---|---|---|
| committer | Kevin Hilman <khilman@baylibre.com> | 2018-12-05 03:48:14 +0300 |
| commit | 622b9827b24df2269581716b9795ebb181b11fd3 (patch) | |
| tree | 27dd197f75d51ebde71643828b7f1732e3401c27 /arch/arm/boot/dts/meson8.dtsi | |
| parent | da38636393cea70d39237eeda2f63ec21f93aa00 (diff) | |
| download | linux-622b9827b24df2269581716b9795ebb181b11fd3.tar.xz | |
ARM: dts: meson: meson8: add the CPU OPP table
The values are taken from Amlogic's 3.10 kernel sources. Their sources
have a "meson8m2_n200_2G.dtd" which defines a different voltage table:
- 0.86V for 96MHz
- (values in between omitted)
- 1.14V for 1.992GHz
The reason for this is simply the hardware design because the voltage
regulator on this board is has a minimum output of 0.86V and a maximum
output of 1.14V. The recommended settings are added with this patch
instead of using the values that are only valid for one board.
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Diffstat (limited to 'arch/arm/boot/dts/meson8.dtsi')
| -rw-r--r-- | arch/arm/boot/dts/meson8.dtsi | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/meson8.dtsi b/arch/arm/boot/dts/meson8.dtsi index 2575a5835567..e5cd325d7ea8 100644 --- a/arch/arm/boot/dts/meson8.dtsi +++ b/arch/arm/boot/dts/meson8.dtsi @@ -64,6 +64,8 @@ reg = <0x200>; enable-method = "amlogic,meson8-smp"; resets = <&clkc CLKC_RESET_CPU0_SOFT_RESET>; + operating-points-v2 = <&cpu_opp_table>; + clocks = <&clkc CLKID_CPUCLK>; }; cpu1: cpu@201 { @@ -73,6 +75,8 @@ reg = <0x201>; enable-method = "amlogic,meson8-smp"; resets = <&clkc CLKC_RESET_CPU1_SOFT_RESET>; + operating-points-v2 = <&cpu_opp_table>; + clocks = <&clkc CLKID_CPUCLK>; }; cpu2: cpu@202 { @@ -82,6 +86,8 @@ reg = <0x202>; enable-method = "amlogic,meson8-smp"; resets = <&clkc CLKC_RESET_CPU2_SOFT_RESET>; + operating-points-v2 = <&cpu_opp_table>; + clocks = <&clkc CLKID_CPUCLK>; }; cpu3: cpu@203 { @@ -91,6 +97,72 @@ reg = <0x203>; enable-method = "amlogic,meson8-smp"; resets = <&clkc CLKC_RESET_CPU3_SOFT_RESET>; + operating-points-v2 = <&cpu_opp_table>; + clocks = <&clkc CLKID_CPUCLK>; + }; + }; + + cpu_opp_table: opp-table { + compatible = "operating-points-v2"; + opp-shared; + + opp-96000000 { + opp-hz = /bits/ 64 <96000000>; + opp-microvolt = <825000>; + }; + opp-192000000 { + opp-hz = /bits/ 64 <192000000>; + opp-microvolt = <825000>; + }; + opp-312000000 { + opp-hz = /bits/ 64 <312000000>; + opp-microvolt = <825000>; + }; + opp-408000000 { + opp-hz = /bits/ 64 <408000000>; + opp-microvolt = <825000>; + }; + opp-504000000 { + opp-hz = /bits/ 64 <504000000>; + opp-microvolt = <825000>; + }; + opp-600000000 { + opp-hz = /bits/ 64 <600000000>; + opp-microvolt = <850000>; + }; + opp-720000000 { + opp-hz = /bits/ 64 <720000000>; + opp-microvolt = <850000>; + }; + opp-816000000 { + opp-hz = /bits/ 64 <816000000>; + opp-microvolt = <875000>; + }; + opp-1008000000 { + opp-hz = /bits/ 64 <1008000000>; + opp-microvolt = <925000>; + }; + opp-1200000000 { + opp-hz = /bits/ 64 <1200000000>; + opp-microvolt = <975000>; + }; + opp-1416000000 { + opp-hz = /bits/ 64 <1416000000>; + opp-microvolt = <1025000>; + }; + opp-1608000000 { + opp-hz = /bits/ 64 <1608000000>; + opp-microvolt = <1100000>; + }; + opp-1800000000 { + status = "disabled"; + opp-hz = /bits/ 64 <1800000000>; + opp-microvolt = <1125000>; + }; + opp-1992000000 { + status = "disabled"; + opp-hz = /bits/ 64 <1992000000>; + opp-microvolt = <1150000>; }; }; |