arm64: dts: marvell: add a comment on the cp110 slave node status

The cryptographic engine found on the cp110 slave is disabled by default
because of some known limitations. Add a comment to explain why it is
disabled by default.

Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>

diff --git a/arch/arm64/boot/dts/marvell/armada-cp110-slave.dtsi b/arch/arm64/boot/dts/marvell/armada-cp110-slave.dtsi
index 7e98c155cc6afd46e1cf3643ea2495f0cf6f60ed..385ac30d601299908b387c8e10dd49d56f7ab529 100644 (file)
--- a/arch/arm64/boot/dts/marvell/armada-cp110-slave.dtsi
+++ b/arch/arm64/boot/dts/marvell/armada-cp110-slave.dtsi
@@ -234,6 +234,13 @@
                                                  "ring2", "ring3", "eip";
                                clocks = <&cps_syscon0 1 26>;
                                dma-mask = <0xff 0xffffffff>;
+                               /*
+                                * The cryptographic engine found on the cp110
+                                * master is enabled by default at the SoC
+                                * level. Because it is not possible as of now
+                                * to enable two cryptographic engines in
+                                * parallel, disable this one by default.
+                                */
                                status = "disabled";
                        };
                };