Board revision is hardware revision for board. Meaning of hardware revision is defined by device/SoM manufacturer and because of that it is defined as a string.
Board revision information can be stored in hardware identifier resistors, eFuses, EEPROM or some other device specific non-volatile storage. It is expected that bootloader will analyse board revision information and pass it in device tree to kernel. Signed-off-by: Vesa Jääskeläinen <[email protected]> --- Documentation/devicetree/booting-without-of.txt | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/devicetree/booting-without-of.txt b/Documentation/devicetree/booting-without-of.txt index fb74044..ae8f5ec 100644 --- a/Documentation/devicetree/booting-without-of.txt +++ b/Documentation/devicetree/booting-without-of.txt @@ -872,6 +872,7 @@ address which can extend beyond that limit. Additional properties for the root node: - serial-number : a string representing the device's serial number + - board-revision : a string representing the board's revision b) The /cpus node -- 2.1.4
