[PATCH v5 6/6] doc: dtbinding: Update documentation for Generic Firmware loader

[Christian Marangi <ansuelsmth@gmail.com>]

Update documentation for Generic Firmware loader, generalize it from FS
specific and add new property and example for FIP loader.

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
---
 .../misc/{fs_loader.txt => fw_loader.txt}         | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)
 rename doc/device-tree-bindings/misc/{fs_loader.txt => fw_loader.txt} (77%)

diff --git a/doc/device-tree-bindings/misc/fs_loader.txt b/doc/device-tree-bindings/misc/fw_loader.txt
similarity index 77%
rename from doc/device-tree-bindings/misc/fs_loader.txt
rename to doc/device-tree-bindings/misc/fw_loader.txt
index 542be4b25a0a..44d9c076ebb8 100644
--- a/doc/device-tree-bindings/misc/fs_loader.txt
+++ b/doc/device-tree-bindings/misc/fw_loader.txt
@@ -1,9 +1,9 @@
-* File system firmware loader
+* Generic Firmware loader
 
 Required properties:
 --------------------
 
-- compatible: should contain "u-boot,fs-loader"
+- compatible: should contain "u-boot,fs-loader" or "u-boot,fip-loader"
 - phandlepart: which block storage device and partition the image loading from,
 	       this property is required for mmc, usb and sata. This is unsigned
 	       32-bit array. For example phandlepart=<&mmc_0 1>, meaning use
@@ -12,6 +12,8 @@ Required properties:
 	   required for ubi and mounting.
 - ubivol: which volume of ubi the image loading from, this property is required
 	  for ubi and mounting.
+- partoffset: valid ONLY for "u-boot,fip-loader". Offset of the partition to
+	      parse the FIP parition from.
 
 Example of storage device and partition search set for mmc, usb, sata and
 ubi in device tree source as shown in below:
@@ -46,3 +48,12 @@ ubi in device tree source as shown in below:
 		mtdpart = "UBI",
 		ubivol = "ubi0";
 	};
+
+	Example for FIP from eMMC:
+	fs_loader4: fip-loader@4 {
+		bootph-all;
+		compatible = "u-boot,fip-loader";
+		phandlepart = <&mmc0 0>;
+		partoffset = <0x100>;
+	};
+
-- 
2.53.0