From: Rosen Penev <rosenp@gmail.com>
To: linux-serial@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Jiri Slaby <jirislaby@kernel.org>,
linux-kernel@vger.kernel.org (open list:TTY LAYER AND SERIAL
DRIVERS)
Subject: [PATCH] serial: 8250: Add Armada 38x earlycon support
Date: Wed, 2 Sep 2026 15:17:09 -0700 [thread overview]
Message-ID: <20260902221709.340393-1-rosenp@gmail.com> (raw)
Register the Armada 38x UART compatible with the built-in 8250
earlycon implementation so stdout-path can enable an early console
without adding a generic ns16550a compatible to the device tree.
Keeping the vendor-specific compatible avoids exposing the UART to the
generic OF 8250 runtime driver while preserving the DesignWare driver
Armada-specific runtime handling.
Assisted-by: Codex:GPT-5
Signed-off-by: Rosen Penev <rosenp@gmail.com>
---
drivers/tty/serial/8250/8250_early.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/tty/serial/8250/8250_early.c b/drivers/tty/serial/8250/8250_early.c
index 44ec209f37c4..265d49850e15 100644
--- a/drivers/tty/serial/8250/8250_early.c
+++ b/drivers/tty/serial/8250/8250_early.c
@@ -175,6 +175,7 @@ EARLYCON_DECLARE(uart8250, early_serial8250_setup);
EARLYCON_DECLARE(uart, early_serial8250_setup);
OF_EARLYCON_DECLARE(ns16550, "ns16550", early_serial8250_setup);
OF_EARLYCON_DECLARE(ns16550a, "ns16550a", early_serial8250_setup);
+OF_EARLYCON_DECLARE(uart, "marvell,armada-38x-uart", early_serial8250_setup);
OF_EARLYCON_DECLARE(uart, "nvidia,tegra20-uart", early_serial8250_setup);
OF_EARLYCON_DECLARE(uart, "snps,dw-apb-uart", early_serial8250_setup);
--
2.55.0
reply other threads:[~2026-09-02 22:17 UTC|newest]
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