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Add a document to describe file system firmware loader binding information. Signed-off-by: Tien Fong Chee <tien.fong.chee@intel.com> Reviewed-by: Simon Glass <sjg@chromium.org>
48 lines
1.4 KiB
Text
48 lines
1.4 KiB
Text
* File system firmware loader
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Required properties:
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--------------------
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- compatible: should contain "u-boot,fs-loader"
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- phandlepart: which block storage device and partition the image loading from,
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this property is required for mmc, usb and sata. This is unsigned
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32-bit array. For example phandlepart=<&mmc_0 1>, meaning use
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that MMC0 node pointer, partition 1.
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- mdtpart: which partition of ubi the image loading from, this property is
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required for ubi and mounting.
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- ubivol: which volume of ubi the image loading from, this property is required
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for ubi and mounting.
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Example of storage device and partition search set for mmc, usb, sata and
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ubi in device tree source as shown in below:
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Example of storage type and device partition search set for mmc, usb,
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sata and ubi as shown in below:
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Example for mmc:
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fs_loader0: fs-loader@0 {
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u-boot,dm-pre-reloc;
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compatible = "u-boot,fs-loader";
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phandlepart = <&mmc_0 1>;
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};
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Example for usb:
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fs_loader1: fs-loader@1 {
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u-boot,dm-pre-reloc;
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compatible = "u-boot,fs-loader";
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phandlepart = <&usb0 1>;
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};
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Example for sata:
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fs_loader2: fs-loader@2 {
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u-boot,dm-pre-reloc;
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compatible = "u-boot,fs-loader";
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phandlepart = <&sata0 1>;
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};
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Example for ubi:
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fs_loader3: fs-loader@3 {
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u-boot,dm-pre-reloc;
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compatible = "u-boot,fs-loader";
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mtdpart = "UBI",
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ubivol = "ubi0";
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};
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