From 197b4fbd218a0a12573cdfcb011eeb3f00765d96 Mon Sep 17 00:00:00 2001 From: Phil Elwell Date: Fri, 17 Jul 2020 11:20:07 +0100 Subject: [PATCH] ARM: dts: Add UART skip-init properties for U-boot U-boot can get stuck trying to initialise UARTs that aren't mapped to the pin header. There is no reason for U-boot not to rely on the initialisation by the firmware, so tag both UARTs with the u-boot magic boolean property "skip-init". See: https://github.com/raspberrypi/linux/pull/3731 https://lists.denx.de/pipermail/u-boot/2017-April/285606.html Signed-off-by: Phil Elwell --- arch/arm/boot/dts/bcm270x-rpi.dtsi | 8 ++++++++ 1 file changed, 8 insertions(+) --- a/arch/arm/boot/dts/bcm270x-rpi.dtsi +++ b/arch/arm/boot/dts/bcm270x-rpi.dtsi @@ -102,6 +102,14 @@ }; }; +&uart0 { + skip-init; +}; + +&uart1 { + skip-init; +}; + &txp { status = "disabled"; };