diff options
Diffstat (limited to 'doc/device-tree-bindings/chosen.txt')
| -rw-r--r-- | doc/device-tree-bindings/chosen.txt | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/doc/device-tree-bindings/chosen.txt b/doc/device-tree-bindings/chosen.txt index bf9a30a8f9..5625d210e8 100644 --- a/doc/device-tree-bindings/chosen.txt +++ b/doc/device-tree-bindings/chosen.txt @@ -41,3 +41,25 @@ Example reg = <0xf00 0x10>; }; }; + +u-boot,spl-boot-order property +------------------------------ + +In a system using an SPL stage and having multiple boot sources +(e.g. SPI NOR flash, on-board eMMC and a removable SD-card), the boot +device may be probed by reading the image and verifying an image +signature. + +If the SPL is configured through the device-tree, the boot-order can +be configured with the spl-boot-order property under the /chosen node. +Each list element of the property should specify a device to be probed +in the order they are listed: references (i.e. implicit paths), a full +path or an alias is expected for each entry. + +Example +------- +/ { + chosen { + u-boot,spl-boot-order = &sdmmc, "/sdhci@fe330000"; + }; +}; |