From 33f9e4d3f6e270f067b5d0e5e392eaaea9c1bcf2 Mon Sep 17 00:00:00 2001
From: Andrew Scheller <andrew.scheller@raspberrypi.com>
Date: Wed, 5 Nov 2025 11:57:26 +0000
Subject: [PATCH] Flag enable_rp1_uart as being Pi5-only

...as only Pi 5 has an RP1 chip!
---
 documentation/asciidoc/computers/config_txt/boot.adoc | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/documentation/asciidoc/computers/config_txt/boot.adoc b/documentation/asciidoc/computers/config_txt/boot.adoc
index acdd553f1..786df5f5c 100644
--- a/documentation/asciidoc/computers/config_txt/boot.adoc
+++ b/documentation/asciidoc/computers/config_txt/boot.adoc
@@ -165,6 +165,8 @@ Default: `0x0`
 [[enable_rp1_uart]]
 ==== `enable_rp1_uart`
 
+Raspberry Pi 5 only.
+
 When set to `1`, firmware initialises RP1 UART0 to 115200bps and doesn't reset RP1 before starting the OS (separately configurable using `pciex4_reset=1`).
 This makes it easier to get UART output on the 40-pin header in early boot-code, for instance during bare-metal debug.