From 2440d29d2ae2b4f3b1d1ae87c8130351793d6df6 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Thu, 18 Feb 2016 14:23:31 +0100 Subject: ARM: dts: realview: support all the RealView EB board variants 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 Cc: Peter Maydell Cc: Marc Zyngier Acked-by: Arnd Bergmann Signed-off-by: Linus Walleij --- arch/arm/boot/dts/arm-realview-eb-11mp.dts | 74 ++++++++++++++++++++++++++++++ 1 file changed, 74 insertions(+) create mode 100644 arch/arm/boot/dts/arm-realview-eb-11mp.dts (limited to 'arch/arm/boot/dts/arm-realview-eb-11mp.dts') diff --git a/arch/arm/boot/dts/arm-realview-eb-11mp.dts b/arch/arm/boot/dts/arm-realview-eb-11mp.dts new file mode 100644 index 000000000000..87ff602a2a2d --- /dev/null +++ b/arch/arm/boot/dts/arm-realview-eb-11mp.dts @@ -0,0 +1,74 @@ +/* + * Copyright 2016 Linaro Ltd + * + * 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 "arm-realview-eb-mp.dtsi" + +/ { + model = "ARM RealView Emulation Baseboard with ARM11MPCore Rev C"; + arm,hbi = <0x146>; + + /* + * This is the ARM11 MPCore tile (HBI-0146) used with the RealView EB. + * Reference: ARM DUI 0318F + * + * To run this machine with QEMU, specify the following: + * qemu-system-arm -M realview-eb-mpcore -smp cpus=4 + */ + cpus { + #address-cells = <1>; + #size-cells = <0>; + enable-method = "arm,realview-smp"; + + MP11_0: cpu@0 { + device_type = "cpu"; + compatible = "arm,arm11mpcore"; + reg = <0>; + next-level-cache = <&L2>; + }; + + MP11_1: cpu@1 { + device_type = "cpu"; + compatible = "arm,arm11mpcore"; + reg = <1>; + next-level-cache = <&L2>; + }; + + MP11_2: cpu@2 { + device_type = "cpu"; + compatible = "arm,arm11mpcore"; + reg = <2>; + next-level-cache = <&L2>; + }; + + MP11_3: cpu@3 { + device_type = "cpu"; + compatible = "arm,arm11mpcore"; + reg = <3>; + next-level-cache = <&L2>; + }; + }; +}; + +&pmu { + interrupt-affinity = <&MP11_0>, <&MP11_1>, <&MP11_2>, <&MP11_3>; +}; -- cgit v1.2.3