Adding upstream version 5.10.209.upstream/5.10.209upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 44 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/firmware/xilinx/xlnx,zynqmp-firmware.txt b/Documentation/devicetree/bindings/firmware/xilinx/xlnx,zynqmp-firmware.txt
new file mode 100644
index 000000000..18c3aea90
--- /dev/null
+++ b/Documentation/devicetree/bindings/firmware/xilinx/xlnx,zynqmp-firmware.txt
@@ -0,0 +1,44 @@
+-----------------------------------------------------------------
+Device Tree Bindings for the Xilinx Zynq MPSoC Firmware Interface
+-----------------------------------------------------------------
+
+The zynqmp-firmware node describes the interface to platform firmware.
+ZynqMP has an interface to communicate with secure firmware. Firmware
+driver provides an interface to firmware APIs. Interface APIs can be
+used by any driver to communicate to PMUFW(Platform Management Unit).
+These requests include clock management, pin control, device control,
+power management service, FPGA service and other platform management
+services.
+
+Required properties:
+ - compatible:	Must contain any of below:
+		"xlnx,zynqmp-firmware" for Zynq Ultrascale+ MPSoC
+		"xlnx,versal-firmware" for Versal
+ - method:	The method of calling the PM-API firmware layer.
+		Permitted values are:
+		  - "smc" : SMC #0, following the SMCCC
+		  - "hvc" : HVC #0, following the SMCCC
+
+-------
+Example
+-------
+
+Zynq Ultrascale+ MPSoC
+----------------------
+firmware {
+	zynqmp_firmware: zynqmp-firmware {
+		compatible = "xlnx,zynqmp-firmware";
+		method = "smc";
+		...
+	};
+};
+
+Versal
+------
+firmware {
+	versal_firmware: versal-firmware {
+		compatible = "xlnx,versal-firmware";
+		method = "smc";
+		...
+	};
+};