The mikroBUS and Raspberry Pi B+ connector UARTs are behind an SC16IS752
SPI-UART bridge. Add it in order to be able to use these connectors.
Note: For UART flow control two pairs of jumpers need to be configured.
Signed-off-by: Andreas Färber <afaer...@suse.de>
---
arch/mips/boot/dts/img/pistachio_marduk.dts | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/arch/mips/boot/dts/img/pistachio_marduk.dts
b/arch/mips/boot/dts/img/pistachio_marduk.dts
index b0b6b534a41f..f682d0a5a3d9 100644
--- a/arch/mips/boot/dts/img/pistachio_marduk.dts
+++ b/arch/mips/boot/dts/img/pistachio_marduk.dts
@@ -159,6 +159,18 @@
<&gpio1 13 GPIO_ACTIVE_HIGH>,
<&gpio1 14 GPIO_ACTIVE_HIGH>;
+ sc16is752: uart@0 {
+ compatible = "nxp,sc16is752";
+ reg = <0>;
+ spi-max-frequency = <4000000>;
+ interrupt-parent = <&gpio0>;
+ interrupts = <11 IRQ_TYPE_EDGE_FALLING>;
+ clocks = <&ca8210>;
+
+ gpio-controller;
+ #gpio-cells = <2>;
+ };
+
ca8210: sixlowpan@4 {
compatible = "cascoda,ca8210";
reg = <4>;
--
2.16.4
