linux-stable/arch/arm64/boot/dts/cavium/thunder-88xx.dtsi
Marc Zyngier f2a89d3b2b arm64: dts: Fix broken architected timer interrupt trigger
The ARM architected timer specification mandates that the interrupt
associated with each timer is level triggered (which corresponds to
the "counter >= comparator" condition).

A number of DTs are being remarkably creative, declaring the interrupt
to be edge triggered. A quick look at the TRM for the corresponding ARM
CPUs clearly shows that this is wrong, and I've corrected those.
For non-ARM designs (and in the absence of a publicly available TRM),
I've made them active low as well, which can't be completely wrong
as the GIC cannot disinguish between level low and level high.

The respective maintainers are of course welcome to prove me wrong.

While I was at it, I took the liberty to fix a couple of related issue,
such as some spurious affinity bits on ThunderX, and their complete
absence on ls1043a (both of which seem to be related to copy-pasting
from other DTs).

Acked-by: Duc Dang <dhdang@apm.com>
Acked-by: Carlo Caione <carlo@endlessm.com>
Acked-by: Michal Simek <michal.simek@xilinx.com>
Acked-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Acked-by: Dinh Nguyen <dinguyen@opensource.altera.com>
Acked-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2016-09-14 22:47:22 +02:00

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/*
* Cavium Thunder DTS file - Thunder SoC description
*
* Copyright (C) 2014, Cavium Inc.
*
* This file is dual-licensed: you can use it either under the terms
* of the GPL 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.
*
* You should have received a copy of the GNU General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
* MA 02110-1301 USA
*
* 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.
*/
/ {
compatible = "cavium,thunder-88xx";
interrupt-parent = <&gic0>;
#address-cells = <2>;
#size-cells = <2>;
psci {
compatible = "arm,psci-0.2";
method = "smc";
};
cpus {
#address-cells = <2>;
#size-cells = <0>;
cpu@000 {
device_type = "cpu";
compatible = "cavium,thunder", "arm,armv8";
reg = <0x0 0x000>;
enable-method = "psci";
};
cpu@001 {
device_type = "cpu";
compatible = "cavium,thunder", "arm,armv8";
reg = <0x0 0x001>;
enable-method = "psci";
};
cpu@002 {
device_type = "cpu";
compatible = "cavium,thunder", "arm,armv8";
reg = <0x0 0x002>;
enable-method = "psci";
};
cpu@003 {
device_type = "cpu";
compatible = "cavium,thunder", "arm,armv8";
reg = <0x0 0x003>;
enable-method = "psci";
};
cpu@004 {
device_type = "cpu";
compatible = "cavium,thunder", "arm,armv8";
reg = <0x0 0x004>;
enable-method = "psci";
};
cpu@005 {
device_type = "cpu";
compatible = "cavium,thunder", "arm,armv8";
reg = <0x0 0x005>;
enable-method = "psci";
};
cpu@006 {
device_type = "cpu";
compatible = "cavium,thunder", "arm,armv8";
reg = <0x0 0x006>;
enable-method = "psci";
};
cpu@007 {
device_type = "cpu";
compatible = "cavium,thunder", "arm,armv8";
reg = <0x0 0x007>;
enable-method = "psci";
};
cpu@008 {
device_type = "cpu";
compatible = "cavium,thunder", "arm,armv8";
reg = <0x0 0x008>;
enable-method = "psci";
};
cpu@009 {
device_type = "cpu";
compatible = "cavium,thunder", "arm,armv8";
reg = <0x0 0x009>;
enable-method = "psci";
};
cpu@00a {
device_type = "cpu";
compatible = "cavium,thunder", "arm,armv8";
reg = <0x0 0x00a>;
enable-method = "psci";
};
cpu@00b {
device_type = "cpu";
compatible = "cavium,thunder", "arm,armv8";
reg = <0x0 0x00b>;
enable-method = "psci";
};
cpu@00c {
device_type = "cpu";
compatible = "cavium,thunder", "arm,armv8";
reg = <0x0 0x00c>;
enable-method = "psci";
};
cpu@00d {
device_type = "cpu";
compatible = "cavium,thunder", "arm,armv8";
reg = <0x0 0x00d>;
enable-method = "psci";
};
cpu@00e {
device_type = "cpu";
compatible = "cavium,thunder", "arm,armv8";
reg = <0x0 0x00e>;
enable-method = "psci";
};
cpu@00f {
device_type = "cpu";
compatible = "cavium,thunder", "arm,armv8";
reg = <0x0 0x00f>;
enable-method = "psci";
};
cpu@100 {
device_type = "cpu";
compatible = "cavium,thunder", "arm,armv8";
reg = <0x0 0x100>;
enable-method = "psci";
};
cpu@101 {
device_type = "cpu";
compatible = "cavium,thunder", "arm,armv8";
reg = <0x0 0x101>;
enable-method = "psci";
};
cpu@102 {
device_type = "cpu";
compatible = "cavium,thunder", "arm,armv8";
reg = <0x0 0x102>;
enable-method = "psci";
};
cpu@103 {
device_type = "cpu";
compatible = "cavium,thunder", "arm,armv8";
reg = <0x0 0x103>;
enable-method = "psci";
};
cpu@104 {
device_type = "cpu";
compatible = "cavium,thunder", "arm,armv8";
reg = <0x0 0x104>;
enable-method = "psci";
};
cpu@105 {
device_type = "cpu";
compatible = "cavium,thunder", "arm,armv8";
reg = <0x0 0x105>;
enable-method = "psci";
};
cpu@106 {
device_type = "cpu";
compatible = "cavium,thunder", "arm,armv8";
reg = <0x0 0x106>;
enable-method = "psci";
};
cpu@107 {
device_type = "cpu";
compatible = "cavium,thunder", "arm,armv8";
reg = <0x0 0x107>;
enable-method = "psci";
};
cpu@108 {
device_type = "cpu";
compatible = "cavium,thunder", "arm,armv8";
reg = <0x0 0x108>;
enable-method = "psci";
};
cpu@109 {
device_type = "cpu";
compatible = "cavium,thunder", "arm,armv8";
reg = <0x0 0x109>;
enable-method = "psci";
};
cpu@10a {
device_type = "cpu";
compatible = "cavium,thunder", "arm,armv8";
reg = <0x0 0x10a>;
enable-method = "psci";
};
cpu@10b {
device_type = "cpu";
compatible = "cavium,thunder", "arm,armv8";
reg = <0x0 0x10b>;
enable-method = "psci";
};
cpu@10c {
device_type = "cpu";
compatible = "cavium,thunder", "arm,armv8";
reg = <0x0 0x10c>;
enable-method = "psci";
};
cpu@10d {
device_type = "cpu";
compatible = "cavium,thunder", "arm,armv8";
reg = <0x0 0x10d>;
enable-method = "psci";
};
cpu@10e {
device_type = "cpu";
compatible = "cavium,thunder", "arm,armv8";
reg = <0x0 0x10e>;
enable-method = "psci";
};
cpu@10f {
device_type = "cpu";
compatible = "cavium,thunder", "arm,armv8";
reg = <0x0 0x10f>;
enable-method = "psci";
};
cpu@200 {
device_type = "cpu";
compatible = "cavium,thunder", "arm,armv8";
reg = <0x0 0x200>;
enable-method = "psci";
};
cpu@201 {
device_type = "cpu";
compatible = "cavium,thunder", "arm,armv8";
reg = <0x0 0x201>;
enable-method = "psci";
};
cpu@202 {
device_type = "cpu";
compatible = "cavium,thunder", "arm,armv8";
reg = <0x0 0x202>;
enable-method = "psci";
};
cpu@203 {
device_type = "cpu";
compatible = "cavium,thunder", "arm,armv8";
reg = <0x0 0x203>;
enable-method = "psci";
};
cpu@204 {
device_type = "cpu";
compatible = "cavium,thunder", "arm,armv8";
reg = <0x0 0x204>;
enable-method = "psci";
};
cpu@205 {
device_type = "cpu";
compatible = "cavium,thunder", "arm,armv8";
reg = <0x0 0x205>;
enable-method = "psci";
};
cpu@206 {
device_type = "cpu";
compatible = "cavium,thunder", "arm,armv8";
reg = <0x0 0x206>;
enable-method = "psci";
};
cpu@207 {
device_type = "cpu";
compatible = "cavium,thunder", "arm,armv8";
reg = <0x0 0x207>;
enable-method = "psci";
};
cpu@208 {
device_type = "cpu";
compatible = "cavium,thunder", "arm,armv8";
reg = <0x0 0x208>;
enable-method = "psci";
};
cpu@209 {
device_type = "cpu";
compatible = "cavium,thunder", "arm,armv8";
reg = <0x0 0x209>;
enable-method = "psci";
};
cpu@20a {
device_type = "cpu";
compatible = "cavium,thunder", "arm,armv8";
reg = <0x0 0x20a>;
enable-method = "psci";
};
cpu@20b {
device_type = "cpu";
compatible = "cavium,thunder", "arm,armv8";
reg = <0x0 0x20b>;
enable-method = "psci";
};
cpu@20c {
device_type = "cpu";
compatible = "cavium,thunder", "arm,armv8";
reg = <0x0 0x20c>;
enable-method = "psci";
};
cpu@20d {
device_type = "cpu";
compatible = "cavium,thunder", "arm,armv8";
reg = <0x0 0x20d>;
enable-method = "psci";
};
cpu@20e {
device_type = "cpu";
compatible = "cavium,thunder", "arm,armv8";
reg = <0x0 0x20e>;
enable-method = "psci";
};
cpu@20f {
device_type = "cpu";
compatible = "cavium,thunder", "arm,armv8";
reg = <0x0 0x20f>;
enable-method = "psci";
};
};
timer {
compatible = "arm,armv8-timer";
interrupts = <1 13 4>,
<1 14 4>,
<1 11 4>,
<1 10 4>;
};
pmu {
compatible = "cavium,thunder-pmu", "arm,armv8-pmuv3";
interrupts = <1 7 4>;
};
soc {
compatible = "simple-bus";
#address-cells = <2>;
#size-cells = <2>;
ranges;
refclk50mhz: refclk50mhz {
compatible = "fixed-clock";
#clock-cells = <0>;
clock-frequency = <50000000>;
clock-output-names = "refclk50mhz";
};
gic0: interrupt-controller@8010,00000000 {
compatible = "arm,gic-v3";
#interrupt-cells = <3>;
#address-cells = <2>;
#size-cells = <2>;
ranges;
interrupt-controller;
reg = <0x8010 0x00000000 0x0 0x010000>, /* GICD */
<0x8010 0x80000000 0x0 0x600000>; /* GICR */
interrupts = <1 9 0xf04>;
its: gic-its@8010,00020000 {
compatible = "arm,gic-v3-its";
msi-controller;
reg = <0x8010 0x20000 0x0 0x200000>;
};
};
uaa0: serial@87e0,24000000 {
compatible = "arm,pl011", "arm,primecell";
reg = <0x87e0 0x24000000 0x0 0x1000>;
interrupts = <1 21 4>;
clocks = <&refclk50mhz>;
clock-names = "apb_pclk";
};
uaa1: serial@87e0,25000000 {
compatible = "arm,pl011", "arm,primecell";
reg = <0x87e0 0x25000000 0x0 0x1000>;
interrupts = <1 22 4>;
clocks = <&refclk50mhz>;
clock-names = "apb_pclk";
};
};
};