bootstd: doc: Add documentation

Add documentation for this feature, including the commands and full
devicetree bindings.

Signed-off-by: Simon Glass <[email protected]>

1 files changed, 31 insertions, 0 deletions

diff --git a/doc/device-tree-bindings/bootmeth.txt b/doc/device-tree-bindings/bootmeth.txt
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+U-Boot standard boot methods (bootmeth)
+======================================
+
+This provides methods (called bootmeths) for locating bootflows on a boot
+device (bootdev). These are normally created as children of the bootstd device.
+
+Required properties:
+
+compatible:
+   "u-boot,distro-syslinux" - distro boot from a block device
+   "u-boot,distro-pxe" - distro boot from a network device
+   "u-boot,distro-efi" - EFI boot from an .efi file
+   "u-boot,efi-bootmgr" - EFI boot using boot manager (bootmgr)
+
+
+Example:
+
+	bootstd {
+		compatible = "u-boot,boot-std";
+
+		filename-prefixes = "/", "/boot/";
+		bootdev-order = "mmc2", "mmc1";
+
+		syslinux {
+			compatible = "u-boot,distro-syslinux";
+		};
+
+		efi {
+			compatible = "u-boot,distro-efi";
+		};
+	};