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authorStefan Wahren <stefan.wahren@i2se.com>2017-05-29 13:57:24 +0200
committerDavid S. Miller <davem@davemloft.net>2017-05-30 13:57:32 -0400
commit6a1db289d00b58ee5dec2e9139a92582e55ae8a8 (patch)
treea35637b4a94e2b66fd15d182d12543bb047bcd11 /Documentation
parent1820827949201041b233dbe7ac5b5c518944b9dd (diff)
downloadlinux-6a1db289d00b58ee5dec2e9139a92582e55ae8a8.tar.bz2
dt-bindings: qca7000: append UART interface to binding
This merges the serdev binding for the QCA7000 UART driver (Ethernet over UART) into the existing document. Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/devicetree/bindings/net/qca,qca7000.txt32
1 files changed, 32 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/net/qca,qca7000.txt b/Documentation/devicetree/bindings/net/qca,qca7000.txt
index a37f65678399..6d9efb2eb9a5 100644
--- a/Documentation/devicetree/bindings/net/qca,qca7000.txt
+++ b/Documentation/devicetree/bindings/net/qca,qca7000.txt
@@ -54,3 +54,35 @@ ssp2: spi@80014000 {
local-mac-address = [ A0 B0 C0 D0 E0 F0 ];
};
};
+
+(b) Ethernet over UART
+
+In order to use the QCA7000 as UART slave it must be defined as a child of a
+UART master in the device tree. It is possible to preconfigure the UART
+settings of the QCA7000 firmware, but it's not possible to change them during
+runtime.
+
+Required properties:
+- compatible : Should be "qca,qca7000"
+
+Optional properties:
+- local-mac-address : see ./ethernet.txt
+- current-speed : current baud rate of QCA7000 which defaults to 115200
+ if absent, see also ../serial/slave-device.txt
+
+UART Example:
+
+/* Freescale i.MX28 UART */
+auart0: serial@8006a000 {
+ compatible = "fsl,imx28-auart", "fsl,imx23-auart";
+ reg = <0x8006a000 0x2000>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&auart0_2pins_a>;
+ status = "okay";
+
+ qca7000: ethernet {
+ compatible = "qca,qca7000";
+ local-mac-address = [ A0 B0 C0 D0 E0 F0 ];
+ current-speed = <38400>;
+ };
+};