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ARM64: SoC changes for 3.18

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Starting with 3.18, we are merging SoC-specific changes for arm64 through
 the arm-soc tree, like we have been doing for arm32.
 
 This time, there is only one set of changes, adding support for the
 Cavium "Thunder" Soc family. Since the changes are relatively small,
 this includes Kconfig, defconfig and DT changes.
 
 If all goes well, we will never require adding actual C source code
 for platform support in arm64, given that the architecture is more
 clearly defined and we have moved out a lot of the platform specifics
 into device drivers for arm32 already.
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Merge tag 'arm64-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM64 SoC changes from Arnd Bergmann:
 "Starting with 3.18, we are merging SoC-specific changes for arm64
  through the arm-soc tree, like we have been doing for arm32.

  This time, there is only one set of changes, adding support for the
  Cavium "Thunder" Soc family.  Since the changes are relatively small,
  this includes Kconfig, defconfig and DT changes.

  If all goes well, we will never require adding actual C source code
  for platform support in arm64, given that the architecture is more
  clearly defined and we have moved out a lot of the platform specifics
  into device drivers for arm32 already"

* tag 'arm64-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  arm64, defconfig: Enable Cavium Thunder SoC in defconfig
  arm64, thunder: Add Kconfig option for Cavium Thunder SoC Family
  arm64, thunder: Document devicetree bindings for Cavium Thunder SoC
  arm64, thunder: Add initial dts for Cavium Thunder SoC
This commit is contained in:
Linus Torvalds 2014-10-08 17:40:02 -04:00
commit d5935b07da
7 changed files with 486 additions and 0 deletions
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10
Documentation/devicetree/bindings/arm/cavium-thunder.txt Normal file
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@ -0,0 +1,10 @@
Cavium Thunder platform device tree bindings
--------------------------------------------
Boards with Cavium's Thunder SoC shall have following properties.
Root Node
---------
Required root node properties:
- compatible = "cavium,thunder-88xx";

1
Documentation/devicetree/bindings/arm/cpus.txt
View File

@ -166,6 +166,7 @@ nodes to be present and contain the properties described below.
"arm,cortex-r5"
"arm,cortex-r7"
"brcm,brahma-b15"
"cavium,thunder"
"faraday,fa526"
"intel,sa110"
"intel,sa1100"

5
arch/arm64/Kconfig
View File

@ -135,6 +135,11 @@ source "kernel/Kconfig.freezer"
menu "Platform selection"
config ARCH_THUNDER
bool "Cavium Inc. Thunder SoC Family"
help
This enables support for Cavium's Thunder Family of SoCs.
config ARCH_VEXPRESS
bool "ARMv8 software model (Versatile Express)"
select ARCH_REQUIRE_GPIOLIB

1
arch/arm64/boot/dts/Makefile
View File

@ -1,3 +1,4 @@
dtb-$(CONFIG_ARCH_THUNDER) += thunder-88xx.dtb
dtb-$(CONFIG_ARCH_VEXPRESS) += rtsm_ve-aemv8a.dtb foundation-v8.dtb
dtb-$(CONFIG_ARCH_XGENE) += apm-mustang.dtb

67
arch/arm64/boot/dts/thunder-88xx.dts Normal file
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@ -0,0 +1,67 @@
/*
* Cavium Thunder DTS file - Thunder board 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.
*/
/dts-v1/;
/include/ "thunder-88xx.dtsi"
/ {
model = "Cavium ThunderX CN88XX board";
compatible = "cavium,thunder-88xx";
aliases {
serial0 = &uaa0;
serial1 = &uaa1;
};
memory@00000000 {
device_type = "memory";
reg = <0x0 0x00000000 0x0 0x80000000>;
};
};

401
arch/arm64/boot/dts/thunder-88xx.dtsi Normal file
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@ -0,0 +1,401 @@
/*
* 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 0xff01>,
<1 14 0xff01>,
<1 11 0xff01>,
<1 10 0xff01>;
};
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>;
interrupt-controller;
reg = <0x8010 0x00000000 0x0 0x010000>, /* GICD */
<0x8010 0x80000000 0x0 0x600000>; /* GICR */
interrupts = <1 9 0xf04>;
};
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";
};
};
};

1
arch/arm64/configs/defconfig
View File

@ -32,6 +32,7 @@ CONFIG_MODULES=y
CONFIG_MODULE_UNLOAD=y
# CONFIG_BLK_DEV_BSG is not set
# CONFIG_IOSCHED_DEADLINE is not set
CONFIG_ARCH_THUNDER=y
CONFIG_ARCH_VEXPRESS=y
CONFIG_ARCH_XGENE=y
CONFIG_SMP=y