linux-kernel - [PATCH 1/4] arm64: dts: marvell: espressobin-ultra: enable UART output by default

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Message-Id: <20210927154159.2168500-1-robert.marko@sartura.hr>
Date:   Mon, 27 Sep 2021 17:41:56 +0200
From:   Robert Marko <robert.marko@...tura.hr>
To:     andrew@...n.ch, gregory.clement@...tlin.com,
        sebastian.hesselbarth@...il.com, robh+dt@...nel.org,
        linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     Robert Marko <robert.marko@...tura.hr>
Subject: [PATCH 1/4] arm64: dts: marvell: espressobin-ultra: enable UART output by default

Since Espressobin Ultra board has a microUSB port
with the onboard USB to UART connected to it to be
used as a debug UART it makes no sense to require
the bootloader to pass console args to the kernel in
order to get console working.

So, use the "stdout-path" property to enable the UART
output on the microUSB port by default.

Signed-off-by: Robert Marko <robert.marko@...tura.hr>
---
 arch/arm64/boot/dts/marvell/armada-3720-espressobin-ultra.dts | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm64/boot/dts/marvell/armada-3720-espressobin-ultra.dts b/arch/arm64/boot/dts/marvell/armada-3720-espressobin-ultra.dts
index c5eb3604dd5b..c1770ceff3c1 100644
--- a/arch/arm64/boot/dts/marvell/armada-3720-espressobin-ultra.dts
+++ b/arch/arm64/boot/dts/marvell/armada-3720-espressobin-ultra.dts
@@ -15,6 +15,10 @@ / {
 	compatible = "globalscale,espressobin-ultra", "marvell,armada3720",
 		     "marvell,armada3710";
 
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
 	aliases {
 		/* ethernet1 is WAN port */
 		ethernet1 = &switch0port5;
-- 
2.31.1