diff --git a/documentation/asciidoc/computers/configuration/device-tree.adoc b/documentation/asciidoc/computers/configuration/device-tree.adoc
index 89c9fb68e..7a961173c 100644
--- a/documentation/asciidoc/computers/configuration/device-tree.adoc
+++ b/documentation/asciidoc/computers/configuration/device-tree.adoc
@@ -980,7 +980,7 @@ This sets an (exclusive) limit to the loaded device tree. By default the device
 If non-zero, turn on some extra logging for the firmware's device tree processing.
 
 `enable_uart`
-Enable the primary/console xref:configuration.adoc#configuring-uarts[UART] (ttyS0 on a Raspberry Pi 3, ttyAMA0 otherwise - unless swapped with an overlay such as miniuart-bt). If the primary UART is ttyAMA0 then enable_uart defaults to 1 (enabled), otherwise it defaults to 0 (disabled). This is because it is necessary to stop the core frequency from changing which would make ttyS0 unusable, so `enable_uart=1` implies core_freq=250 (unless force_turbo=1). In some cases this is a performance hit, so it is off by default. 
+Enable the primary/console xref:configuration.adoc#configuring-uarts[UART] (ttyS0 on a Raspberry Pi 3, 4, 400, Zero W and Zero 2 W, ttyAMA0 otherwise - unless swapped with an overlay such as miniuart-bt). If the primary UART is ttyAMA0 then `enable_uart` defaults to 1 (enabled), otherwise it defaults to 0 (disabled). This is because it is necessary to stop the core frequency from changing which would make ttyS0 unusable, so `enable_uart=1` implies `core_freq=250` (unless `force_turbo=1`). In some cases this is a performance hit, so it is off by default. 
 
 `overlay_prefix`
 Specifies a subdirectory/prefix from which to load overlays - defaults to "overlays/". Note the trailing "/". If desired you can add something after the final "/" to add a prefix to each file, although this is not likely to be needed.