From: Nava kishore Manne <>

This patch Adds the new compatible string for ZynqMP SoC.

Signed-off-by: Nava kishore Manne <>
Changes for v6:
                -Added New compatiable string for ZynqMP SoC as
                 suggested by Rob Herring.
Changes for v5:
                -Mofified the compatible session.
Changes for v4:
                -Modified the ChangeLog comment.
Changes for v3:
                -Added changeLog comment.
Changes for v2:

 Documentation/devicetree/bindings/serial/cdns,uart.txt | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/serial/cdns,uart.txt 
index a3eb154..227bb77 100644
--- a/Documentation/devicetree/bindings/serial/cdns,uart.txt
+++ b/Documentation/devicetree/bindings/serial/cdns,uart.txt
@@ -1,7 +1,9 @@
 Binding for Cadence UART Controller
 Required properties:
-- compatible : should be "cdns,uart-r1p8", or "xlnx,xuartps"
+- compatible :
+  Use "xlnx,xuartps","cdns,uart-r1p8" for Zynq-7xxx SoC.
+  Use "xlnx,zynqmp-uart","cdns,uart-r1p12" for Zynq Ultrascale+ MPSoC.
 - reg: Should contain UART controller registers location and length.
 - interrupts: Should contain UART controller interrupts.
 - clocks: Must contain phandles to the UART clocks

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