[PATCH] serial: 8250: Add Armada 38x earlycon support

[Rosen Penev]

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@xxxxxxxxx>
---
 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