From efeedcf2a9137c9be0b833cb76b05315fe231197 Mon Sep 17 00:00:00 2001 From: AnilKumar Ch Date: Fri, 31 Aug 2012 15:07:20 +0530 Subject: ARM: dts: AM33XX: Add device tree OPP table Add DT OPP table for AM33XX family of devices. This data is decoded by OF with of_init_opp_table() helper function. Also adds cpu0 supply name to the corresponding dts files. cpu0-supply name is used by cpufreq-cpu0 driver to get the regulator pointer for voltage modifications. Signed-off-by: AnilKumar Ch Signed-off-by: Benoit Cousson --- arch/arm/boot/dts/am33xx.dtsi | 15 +++++++++++++++ 1 file changed, 15 insertions(+) (limited to 'arch/arm/boot/dts/am33xx.dtsi') diff --git a/arch/arm/boot/dts/am33xx.dtsi b/arch/arm/boot/dts/am33xx.dtsi index bb31bff01998..b4e3e4793b95 100644 --- a/arch/arm/boot/dts/am33xx.dtsi +++ b/arch/arm/boot/dts/am33xx.dtsi @@ -25,6 +25,21 @@ cpus { cpu@0 { compatible = "arm,cortex-a8"; + + /* + * 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 */ + clock-latency = <300000>; /* From omap-cpufreq driver */ }; }; -- cgit v1.2.3