[Skiboot] [PATCH 1/2] FSP/CUPD: Device tree documentation for firmware information

[Vasant Hegde]

Lets document the firmware version related device tree properties.

Signed-off-by: Vasant Hegde <hegdevasant at linux.vnet.ibm.com>
---
 doc/device-tree/ibm,opal/firmware.txt |   27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)
 create mode 100644 doc/device-tree/ibm,opal/firmware.txt

diff --git a/doc/device-tree/ibm,opal/firmware.txt b/doc/device-tree/ibm,opal/firmware.txt
new file mode 100644
index 0000000..c022079
--- /dev/null
+++ b/doc/device-tree/ibm,opal/firmware.txt
@@ -0,0 +1,27 @@
+System Firmware
+---------------
+
+The 'firmware' node under 'ibm,opal' lists system and OPAL firmware version.
+
+firmware {
+	symbol-map = <0x0 0x300ac650 0x0 0x1b3f5>;
+	compatible = "ibm,opal-firmware";
+	ml-version = [4d 4c 20 46 57 37 37 30 2e 32 30 20 46 57 37 37 30 2e 32 30 20 46 57 37 37 30 2e 32 30];
+	mi-version = <0x4d49205a 0x4c373730 0x5f303735 0x205a4c37 0x37305f30 0x3735205a 0x4c373730 0x5f303735>;
+	version = "skiboot-5.0-rc2";
+	phandle = <0x8e>;
+	linux,phandle = <0x8e>;
+};
+
+'compatible' property describes OPAL compatibility.
+
+'symbol-map' property describes OPAL symbol start address and size.
+
+'version' property describes OPAL version.
+
+'mi-version' property describes Microcode Image.
+
+'ml-version' property describes Microcode Level.
+
+MI/ML format:
+ <ML/MI> <T side version> <P side version> <boot side version>