linux/arch/arm64/boot/dts/freescale/fsl-ls2080a.dtsi
Yuantian Tang 39a71db1e2 arm64: dts: ls208xa: add cpu idle support
ls208xa supports another cpu idle state which is pw20 which saves
more power when cpu is idle.
It was implemented through psci firmware.

Signed-off-by: Tang Yuantian <andy.tang@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2017-08-14 09:14:19 +08:00

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/*
* Device Tree Include file for Freescale Layerscape-2080A family SoC.
*
* Copyright 2014-2016 Freescale Semiconductor, Inc.
*
* Abhimanyu Saini <abhimanyu.saini@nxp.com>
* Bhupesh Sharma <bhupesh.sharma@freescale.com>
*
* This file is dual-licensed: you can use it either under the terms
* of the GPLv2 or the X11 license, at your option. Note that this dual
* licensing only applies to this file, and not this project as a
* whole.
*
* a) This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* Or, alternatively,
*
* b) Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use,
* copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following
* conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*/
#include "fsl-ls208xa.dtsi"
&cpu {
cpu0: cpu@0 {
device_type = "cpu";
compatible = "arm,cortex-a57";
reg = <0x0>;
clocks = <&clockgen 1 0>;
cpu-idle-states = <&CPU_PW20>;
next-level-cache = <&cluster0_l2>;
#cooling-cells = <2>;
};
cpu1: cpu@1 {
device_type = "cpu";
compatible = "arm,cortex-a57";
reg = <0x1>;
clocks = <&clockgen 1 0>;
cpu-idle-states = <&CPU_PW20>;
next-level-cache = <&cluster0_l2>;
};
cpu2: cpu@100 {
device_type = "cpu";
compatible = "arm,cortex-a57";
reg = <0x100>;
clocks = <&clockgen 1 1>;
cpu-idle-states = <&CPU_PW20>;
next-level-cache = <&cluster1_l2>;
#cooling-cells = <2>;
};
cpu3: cpu@101 {
device_type = "cpu";
compatible = "arm,cortex-a57";
reg = <0x101>;
clocks = <&clockgen 1 1>;
cpu-idle-states = <&CPU_PW20>;
next-level-cache = <&cluster1_l2>;
};
cpu4: cpu@200 {
device_type = "cpu";
compatible = "arm,cortex-a57";
reg = <0x200>;
clocks = <&clockgen 1 2>;
cpu-idle-states = <&CPU_PW20>;
next-level-cache = <&cluster2_l2>;
#cooling-cells = <2>;
};
cpu5: cpu@201 {
device_type = "cpu";
compatible = "arm,cortex-a57";
reg = <0x201>;
clocks = <&clockgen 1 2>;
cpu-idle-states = <&CPU_PW20>;
next-level-cache = <&cluster2_l2>;
};
cpu6: cpu@300 {
device_type = "cpu";
compatible = "arm,cortex-a57";
reg = <0x300>;
clocks = <&clockgen 1 3>;
next-level-cache = <&cluster3_l2>;
cpu-idle-states = <&CPU_PW20>;
#cooling-cells = <2>;
};
cpu7: cpu@301 {
device_type = "cpu";
compatible = "arm,cortex-a57";
reg = <0x301>;
clocks = <&clockgen 1 3>;
cpu-idle-states = <&CPU_PW20>;
next-level-cache = <&cluster3_l2>;
};
cluster0_l2: l2-cache0 {
compatible = "cache";
};
cluster1_l2: l2-cache1 {
compatible = "cache";
};
cluster2_l2: l2-cache2 {
compatible = "cache";
};
cluster3_l2: l2-cache3 {
compatible = "cache";
};
CPU_PW20: cpu-pw20 {
compatible = "arm,idle-state";
idle-state-name = "PW20";
arm,psci-suspend-param = <0x00010000>;
entry-latency-us = <2000>;
exit-latency-us = <2000>;
min-residency-us = <6000>;
};
};
&pcie1 {
reg = <0x00 0x03400000 0x0 0x00100000 /* controller registers */
0x10 0x00000000 0x0 0x00002000>; /* configuration space */
ranges = <0x81000000 0x0 0x00000000 0x10 0x00010000 0x0 0x00010000 /* downstream I/O */
0x82000000 0x0 0x40000000 0x10 0x40000000 0x0 0x40000000>; /* non-prefetchable memory */
};
&pcie2 {
reg = <0x00 0x03500000 0x0 0x00100000 /* controller registers */
0x12 0x00000000 0x0 0x00002000>; /* configuration space */
ranges = <0x81000000 0x0 0x00000000 0x12 0x00010000 0x0 0x00010000 /* downstream I/O */
0x82000000 0x0 0x40000000 0x12 0x40000000 0x0 0x40000000>; /* non-prefetchable memory */
};
&pcie3 {
reg = <0x00 0x03600000 0x0 0x00100000 /* controller registers */
0x14 0x00000000 0x0 0x00002000>; /* configuration space */
ranges = <0x81000000 0x0 0x00000000 0x14 0x00010000 0x0 0x00010000 /* downstream I/O */
0x82000000 0x0 0x40000000 0x14 0x40000000 0x0 0x40000000>; /* non-prefetchable memory */
};
&pcie4 {
reg = <0x00 0x03700000 0x0 0x00100000 /* controller registers */
0x16 0x00000000 0x0 0x00002000>; /* configuration space */
ranges = <0x81000000 0x0 0x00000000 0x16 0x00010000 0x0 0x00010000 /* downstream I/O */
0x82000000 0x0 0x40000000 0x16 0x40000000 0x0 0x40000000>; /* non-prefetchable memory */
};