summaryrefslogtreecommitdiff
path: root/arch/arm/boot/dts/arm-realview-eb-11mp.dts
diff options
context:
space:
mode:
authorLinus Walleij <linus.walleij@linaro.org>2016-02-18 16:23:31 +0300
committerLinus Walleij <linus.walleij@linaro.org>2016-04-04 11:58:04 +0300
commit2440d29d2ae2b4f3b1d1ae87c8130351793d6df6 (patch)
tree23cde20c8ff62dbd19fbbffa727ce3fb4b45970f /arch/arm/boot/dts/arm-realview-eb-11mp.dts
parent95109b8b4d425d48c802acfc5c6e38f55c6e7fb5 (diff)
downloadlinux-2440d29d2ae2b4f3b1d1ae87c8130351793d6df6.tar.xz
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 <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>
Diffstat (limited to 'arch/arm/boot/dts/arm-realview-eb-11mp.dts')
-rw-r--r--arch/arm/boot/dts/arm-realview-eb-11mp.dts74
1 files changed, 74 insertions, 0 deletions
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>;
+};