This is a note to let you know that I've just added the patch titled riscv: dts: microchip: mpfs-icicle: Fix serial console to the 5.14-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: riscv-dts-microchip-mpfs-icicle-fix-serial-console.patch and it can be found in the queue-5.14 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit a8db92ca333a395d49f52109e8a2326238b7767f Author: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx> Date: Thu Aug 26 15:19:39 2021 +0200 riscv: dts: microchip: mpfs-icicle: Fix serial console [ Upstream commit cbba17870881cd17bca24673ccb72859431da5bd ] Currently, nothing is output on the serial console, unless "console=ttyS0,115200n8" or "earlycon" are appended to the kernel command line. Enable automatic console selection using chosen/stdout-path by adding a proper alias, and configure the expected serial rate. While at it, add aliases for the other three serial ports, which are provided on the same micro-USB connector as the first one. Fixes: 0fa6107eca4186ad ("RISC-V: Initial DTS for Microchip ICICLE board") Signed-off-by: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx> Reviewed-by: Bin Meng <bmeng.cn@xxxxxxxxx> Reviewed-by: Conor Dooley <conor.dooley@xxxxxxxxxxxxx> Signed-off-by: Palmer Dabbelt <palmerdabbelt@xxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/arch/riscv/boot/dts/microchip/microchip-mpfs-icicle-kit.dts b/arch/riscv/boot/dts/microchip/microchip-mpfs-icicle-kit.dts index baea7d204639..b254c60589a1 100644 --- a/arch/riscv/boot/dts/microchip/microchip-mpfs-icicle-kit.dts +++ b/arch/riscv/boot/dts/microchip/microchip-mpfs-icicle-kit.dts @@ -16,10 +16,14 @@ aliases { ethernet0 = &emac1; + serial0 = &serial0; + serial1 = &serial1; + serial2 = &serial2; + serial3 = &serial3; }; chosen { - stdout-path = &serial0; + stdout-path = "serial0:115200n8"; }; cpus {