diff options
| author | Dave Gerlach <d-gerlach@ti.com> | 2016-05-19 02:36:27 +0300 |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2016-06-10 14:58:07 +0300 |
| commit | 4317be1162108bcdf50dc53dfb48eac94dcff25c (patch) | |
| tree | bb245df3221e7d96042ca4b7e135072c370827ee /arch/arm/boot/dts/am33xx.dtsi | |
| parent | fb515b8e384d8b1a46c664c1ff6c57fdf4dcbd6c (diff) | |
| download | linux-4317be1162108bcdf50dc53dfb48eac94dcff25c.tar.xz | |
ARM: dts: am33xx: Move to operating-points-v2 table and ti-cpufreq driver
Drop the operating-points table present in am33xx.dtsi and add an
operating-points-v2 table with all OPPs available for all silicon
revisions along with necessary data for use by ti-cpufreq to selectively
enable the appropriate OPPs at runtime. Also, drop the voltage-tolerance
value and provide voltages for each OPP using the <target min max>
format instead.
Information from AM335x Data Manual, SPRS717i, Revised December 2015,
Table 5-7.
Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'arch/arm/boot/dts/am33xx.dtsi')
| -rw-r--r-- | arch/arm/boot/dts/am33xx.dtsi | 88 |
1 files changed, 75 insertions, 13 deletions
diff --git a/arch/arm/boot/dts/am33xx.dtsi b/arch/arm/boot/dts/am33xx.dtsi index 2661accdcd92..2625414b805a 100644 --- a/arch/arm/boot/dts/am33xx.dtsi +++ b/arch/arm/boot/dts/am33xx.dtsi @@ -45,19 +45,9 @@ device_type = "cpu"; reg = <0>; - /* - * To consider voltage drop between PMIC and SoC, - * tolerance value is reduced to 2% from 4% and - * voltage value is increased as a precaution. - */ - operating-points = < - /* kHz uV */ - 720000 1285000 - 600000 1225000 - 500000 1125000 - 275000 1125000 - >; - voltage-tolerance = <2>; /* 2 percentage */ + operating-points-v2 = <&cpu0_opp_table>; + ti,syscon-efuse = <&scm_conf 0x7fc 0x1fff 0>; + ti,syscon-rev = <&scm_conf 0x600>; clocks = <&dpll_mpu_ck>; clock-names = "cpu"; @@ -66,6 +56,78 @@ }; }; + cpu0_opp_table: opp_table0 { + compatible = "operating-points-v2"; + + /* + * The three following nodes are marked with opp-suspend + * because the can not be enabled simultaneously on a + * single SoC. + */ + opp50@300000000 { + opp-hz = /bits/ 64 <300000000>; + opp-microvolt = <950000 931000 969000>; + opp-supported-hw = <0x06 0x0010>; + opp-suspend; + }; + + opp100@275000000 { + opp-hz = /bits/ 64 <275000000>; + opp-microvolt = <1100000 1078000 1122000>; + opp-supported-hw = <0x01 0x00FF>; + opp-suspend; + }; + + opp100@300000000 { + opp-hz = /bits/ 64 <300000000>; + opp-microvolt = <1100000 1078000 1122000>; + opp-supported-hw = <0x06 0x0020>; + opp-suspend; + }; + + opp100@500000000 { + opp-hz = /bits/ 64 <500000000>; + opp-microvolt = <1100000 1078000 1122000>; + opp-supported-hw = <0x01 0xFFFF>; + }; + + opp100@600000000 { + opp-hz = /bits/ 64 <600000000>; + opp-microvolt = <1100000 1078000 1122000>; + opp-supported-hw = <0x06 0x0040>; + }; + + opp120@600000000 { + opp-hz = /bits/ 64 <600000000>; + opp-microvolt = <1200000 1176000 1224000>; + opp-supported-hw = <0x01 0xFFFF>; + }; + + opp120@720000000 { + opp-hz = /bits/ 64 <720000000>; + opp-microvolt = <1200000 1176000 1224000>; + opp-supported-hw = <0x06 0x0080>; + }; + + oppturbo@720000000 { + opp-hz = /bits/ 64 <720000000>; + opp-microvolt = <1260000 1234800 1285200>; + opp-supported-hw = <0x01 0xFFFF>; + }; + + oppturbo@800000000 { + opp-hz = /bits/ 64 <800000000>; + opp-microvolt = <1260000 1234800 1285200>; + opp-supported-hw = <0x06 0x0100>; + }; + + oppnitro@1000000000 { + opp-hz = /bits/ 64 <1000000000>; + opp-microvolt = <1325000 1298500 1351500>; + opp-supported-hw = <0x04 0x0200>; + }; + }; + pmu { compatible = "arm,cortex-a8-pmu"; interrupts = <3>; |