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Subject[RFC PATCH 1/2] Documentation: devicetree: root node board-revision property documentation
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 <>
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

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