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diff --git a/target/linux/bcm27xx/image/distroconfig.txt b/target/linux/bcm27xx/image/distroconfig.txt
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+################################################################################
+# Bootloader configuration - distroconfig.txt
+################################################################################
+
+# Restore PL011 (ttyAMA0) to GPIOs 14 & 15, instead of Mini UART (ttyS0).
+# Mini UART is disabled by default unless "enable_uart=1" is specified,
+# which changes the core frequency to a fixed value and impacts performance.
+# See https://www.raspberrypi.org/documentation/configuration/uart.md
+[pi0w]
+dtoverlay=disable-bt
+[pi3]
+dtoverlay=disable-bt
+[pi4]
+dtoverlay=disable-bt