forked from Minki/linux
2440d29d2a
The ARM RealView Evaluation Baseboards are basically these:
- The original ARMv5 EB board with an ARM926EJ-S, ARM1136 or
ARM1176 core tile here described in arm-realview-eb.dts
no matter which of these core tiles is being used. This
can be emulated by QEMU "realview-eb" machine, which by
default will have the ARM926EJ-S core tile.
- The same board with one of three MPCore Core tiles:
ARM11MPCore, not to be confused with the similar ARM
PB11MPCore ARM11MPCore test system. This exist in
two revisions:
- Revision A modeled in arm-realview-eb-11mp.dts
- Revision B modeled arm-realview-eb-11mp-revb.dts
Revision B can be emulated by the QEMU
"realview-eb-mpcore" machine, but to match the hardware
also the argument -smp cpus=4 must be passed so that
it has four CPU cores, like the hardware.
There is also evidently from the code in the kernel a
Cortex-A9 core tile for the EB, and this is modeled in
arm-realview-eb-a9mp.dts based on the kernel boardfile.
I have not found a user guide for this EB core tile on
the ARM website and it seems uncommon. It is however
included for completeness.
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Peter Maydell <peter.maydell@linaro.org>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
71 lines
1.9 KiB
Plaintext
71 lines
1.9 KiB
Plaintext
/*
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* Copyright 2016 Linaro Ltd
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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/dts-v1/;
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#include "arm-realview-eb-mp.dtsi"
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/ {
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model = "ARM RealView EB Cortex A9 MPCore";
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/*
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* This is the Cortex A9 MPCore tile used with the
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* RealView EB.
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*/
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cpus {
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#address-cells = <1>;
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#size-cells = <0>;
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enable-method = "arm,realview-smp";
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A9_0: cpu@0 {
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device_type = "cpu";
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compatible = "arm,cortex-a9";
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reg = <0>;
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next-level-cache = <&L2>;
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};
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A9_1: cpu@1 {
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device_type = "cpu";
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compatible = "arm,cortex-a9";
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reg = <1>;
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next-level-cache = <&L2>;
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};
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A9_2: cpu@2 {
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device_type = "cpu";
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compatible = "arm,cortex-a9";
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reg = <2>;
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next-level-cache = <&L2>;
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};
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A9_3: cpu@3 {
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device_type = "cpu";
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compatible = "arm,cortex-a9";
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reg = <3>;
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next-level-cache = <&L2>;
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};
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};
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};
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&pmu {
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interrupt-affinity = <&A9_0>, <&A9_1>, <&A9_2>, <&A9_3>;
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};
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