lkml.org 
[lkml]   [2015]   [Mar]   [25]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 2/3] ARM: dts: sun6i: Add cpu clock reference and operating points to dtsi
Date
The cpu core is clocked from the "cpu" clock. Add a reference to it
in the first cpu node. Also add "cpu0" label to the node.

The operating points were taken from the a list compiled by Maxime Ripard,
which is based on A31 FEX files from the sunxi-boards repository. Not all
boards have the same settings. The settings in this patch are the ones
shared by A/B/C revisions, plus the default clock setting from u-boot.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
---
arch/arm/boot/dts/sun6i-a31.dtsi | 14 +++++++++++++-
1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/sun6i-a31.dtsi b/arch/arm/boot/dts/sun6i-a31.dtsi
index 6d29eab5fe32..9a68acc1070f 100644
--- a/arch/arm/boot/dts/sun6i-a31.dtsi
+++ b/arch/arm/boot/dts/sun6i-a31.dtsi
@@ -96,10 +96,22 @@
#address-cells = <1>;
#size-cells = <0>;

- cpu@0 {
+ cpu0: cpu@0 {
compatible = "arm,cortex-a7";
device_type = "cpu";
reg = <0>;
+ clocks = <&cpu>;
+ clock-latency = <244144>; /* 8 32k periods */
+ operating-points = <
+ /* kHz uV */
+ 1008000 1200000
+ 864000 1200000
+ 720000 1100000
+ 480000 1000000
+ >;
+ #cooling-cells = <2>;
+ cooling-min-level = <0>;
+ cooling-max-level = <3>;
};

cpu@1 {
--
2.1.4


\
 
 \ /
  Last update: 2015-03-25 22:21    [W:0.033 / U:1.240 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site