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authorLinus Walleij <linus.walleij@linaro.org>2016-09-08 11:17:14 +0200
committerLinus Walleij <linus.walleij@linaro.org>2016-09-09 14:51:32 +0200
commit6a29fa31cdcf9e2ddf74406bd084067b4917edcd (patch)
tree0e2ff6bc5c7498598921fd1ed515bc03d4a3d6ef /arch/arm/boot/dts/arm-realview-eb-bbrevd.dtsi
parentc4ad72560df11961d3e57fb0fadfe88a9863c9ad (diff)
ARM: dts: add device tree for the RealView EB Rev D
The RealView EB baseboard revision D is a special case as it appears to be undocumented in ARM official documents, while the Linux kernel still contains special code for handling it. commit be4f3c8691492934c8ee03dbecb3a3a865ac6cd6 "Add RealView/EB support for the LAN9118 Ethernet chip" adds support for the SMSC LAN9118 chip used on the D revision of the baseboard, but no other traces of hardware deviations for this variant can be found. This creates a separate top-level .dts file especially for this board version, so that it gets registered with the right type of ethernet controller. The ethernet controller modifications are then put into a separate .dtsi file so it can be overlaid on other EB variants using the revision D baseboard. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'arch/arm/boot/dts/arm-realview-eb-bbrevd.dtsi')
-rw-r--r--arch/arm/boot/dts/arm-realview-eb-bbrevd.dtsi45
1 files changed, 45 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/arm-realview-eb-bbrevd.dtsi b/arch/arm/boot/dts/arm-realview-eb-bbrevd.dtsi
new file mode 100644
index 000000000000..a79e1d1d30a7
--- /dev/null
+++ b/arch/arm/boot/dts/arm-realview-eb-bbrevd.dtsi
@@ -0,0 +1,45 @@
+/*
+ * 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.
+ */
+
+/ {
+ /* Introduce a fixed regulator for the new ethernet controller */
+ veth: fixedregulator@0 {
+ compatible = "regulator-fixed";
+ regulator-name = "veth";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-boot-on;
+ };
+};
+
+/*
+ * The revision D has a different ethernet controller that the elder boards:
+ * the older board uses LAN91C111 but the new one uses LAN9118.
+ */
+&ethernet {
+ compatible = "smsc,lan9118", "smsc,lan9115";
+ phy-mode = "mii";
+ smsc,irq-active-high;
+ smsc,irq-push-pull;
+ vdd33a-supply = <&veth>;
+ vddvario-supply = <&veth>;
+};