From 6754f556103be5bd172263b1075ddbb7157afbad Mon Sep 17 00:00:00 2001 From: Mark Langsdorf Date: Mon, 28 Jan 2013 16:13:15 +0000 Subject: cpufreq / highbank: add support for highbank cpufreq Highbank processors depend on the external ECME to perform voltage management based on a requested frequency. Communication between the A9 cores and the ECME happens over the pl320 IPC channel. Signed-off-by: Mark Langsdorf Reviewed-by: Shawn Guo Reviewed-by: Mike Turquette Signed-off-by: Rafael J. Wysocki --- arch/arm/boot/dts/highbank.dts | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'arch/arm/boot') diff --git a/arch/arm/boot/dts/highbank.dts b/arch/arm/boot/dts/highbank.dts index 5927a8df5625..6aad34ad9517 100644 --- a/arch/arm/boot/dts/highbank.dts +++ b/arch/arm/boot/dts/highbank.dts @@ -37,6 +37,16 @@ next-level-cache = <&L2>; clocks = <&a9pll>; clock-names = "cpu"; + operating-points = < + /* kHz ignored */ + 1300000 1000000 + 1200000 1000000 + 1100000 1000000 + 800000 1000000 + 400000 1000000 + 200000 1000000 + >; + clock-latency = <100000>; }; cpu@901 { -- cgit v1.2.3