From: Tien Fong Chee tien.fong.chee@intel.com
Add a document to describe file system firmware loader binding information.
Signed-off-by: Tien Fong Chee tien.fong.chee@intel.com --- doc/device-tree-bindings/misc/fs_loader.txt | 48 +++++++++++++++++++++++++++ 1 files changed, 48 insertions(+), 0 deletions(-) create mode 100644 doc/device-tree-bindings/misc/fs_loader.txt
diff --git a/doc/device-tree-bindings/misc/fs_loader.txt b/doc/device-tree-bindings/misc/fs_loader.txt new file mode 100644 index 0000000..4b3bb62 --- /dev/null +++ b/doc/device-tree-bindings/misc/fs_loader.txt @@ -0,0 +1,48 @@ +File system firmware loader + +Required properties: +- compatible: should contain "fs_loader" +- storage_device: which storage device loading from, could be: + - mmc, usb, sata, and ubi. +- devpart: which storage device and partition the image loading from, + this property is required for mmc, usb and sata. +- mdtpart: which partition of ubi the image loading from, this property is + required for ubi. +- ubivol: which volume of ubi the image loading from, this proprety is required + for ubi. + +=> Example of default storage device partition search set for mmc, usb, sata and +ubi in device tree source as shown in below: + +Example for mmc: +fs_loader { + u-boot,dm-pre-reloc; + compatible = "fs_loader"; + storage_device = "mmc"; + devpart = "0:1"; +}; + +Example for usb: +fs_loader { + u-boot,dm-pre-reloc; + compatible = "fs_loader"; + storage_device = "usb"; + devpart = "0:1"; +}; + +Example for sata: +fs_loader { + u-boot,dm-pre-reloc; + compatible = "fs_loader"; + storage_device = "sata"; + devpart = "0:1"; +}; + +Example for ubi: +fs_loader { + u-boot,dm-pre-reloc; + compatible = "fs_loader"; + storage_device = "ubi"; + mtdpart = "UBI", + ubivol = "ubi0"; +};