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-rw-r--r--Documentation/devicetree/bindings/soc/microchip/microchip,mpfs-sys-controller.yaml11
1 files changed, 8 insertions, 3 deletions
diff --git a/Documentation/devicetree/bindings/soc/microchip/microchip,mpfs-sys-controller.yaml b/Documentation/devicetree/bindings/soc/microchip/microchip,mpfs-sys-controller.yaml
index f699772fedf3..b0dae51e1d42 100644
--- a/Documentation/devicetree/bindings/soc/microchip/microchip,mpfs-sys-controller.yaml
+++ b/Documentation/devicetree/bindings/soc/microchip/microchip,mpfs-sys-controller.yaml
@@ -10,9 +10,14 @@ maintainers:
- Conor Dooley <conor.dooley@microchip.com>
description: |
- The PolarFire SoC system controller is communicated with via a mailbox.
- This document describes the bindings for the client portion of that mailbox.
+ PolarFire SoC devices include a microcontroller acting as the system controller,
+ which provides "services" to the main processor and to the FPGA fabric. These
+ services include hardware rng, reprogramming of the FPGA and verfification of the
+ eNVM contents etc. More information on these services can be found online, at
+ https://onlinedocs.microchip.com/pr/GUID-1409CF11-8EF9-4C24-A94E-70979A688632-en-US-1/index.html
+ Communication with the system controller is done via a mailbox, of which the client
+ portion is documented here.
properties:
mboxes:
@@ -29,7 +34,7 @@ additionalProperties: false
examples:
- |
- syscontroller: syscontroller {
+ syscontroller {
compatible = "microchip,mpfs-sys-controller";
mboxes = <&mbox 0>;
};