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-rw-r--r--arch/arm64/boot/dts/marvell/armada-3720-espressobin.dts12
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/marvell/armada-3720-espressobin.dts b/arch/arm64/boot/dts/marvell/armada-3720-espressobin.dts
index 2ce52ba74f73..bdfb5553ddb5 100644
--- a/arch/arm64/boot/dts/marvell/armada-3720-espressobin.dts
+++ b/arch/arm64/boot/dts/marvell/armada-3720-espressobin.dts
@@ -98,9 +98,21 @@
/* Exported on the micro USB connector J5 through an FTDI */
&uart0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart1_pins>;
status = "okay";
};
+/*
+ * Connector J17 and J18 expose a number of different features. Some pins are
+ * multiplexed. This is the case for instance for the following features:
+ * - UART1 (pin 24 = RX, pin 26 = TX). See armada-3720-db.dts for an example of
+ * how to enable it. Beware that the signals are 1.8V TTL.
+ * - I2C
+ * - SPI
+ * - MMC
+ */
+
/* J7 */
&usb3 {
status = "okay";
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