ARM: sunxi: DT: Add stdout-path property

Add UART aliases and stdout-path property for all the Allwinner boards so that
we won't have to rely on the bootargs' console= value, while working with
legacy bootloaders.

While we're at it, also remove the mentions of earlyprintk in the bootargs,
that will remove our default bootargs entirely, and allow the kernel to boot on
a system even if DEBUG_LL is configured for another system.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>

42 files changed, 280 insertions, 7 deletions

diff --git a/arch/arm/boot/dts/sun4i-a10-a1000.dts b/arch/arm/boot/dts/sun4i-a10-a1000.dts
index 648626bc58a1..f03281434e59 100644
--- a/arch/arm/boot/dts/sun4i-a10-a1000.dts
+++ b/arch/arm/boot/dts/sun4i-a10-a1000.dts
@@ -58,6 +58,14 @@
 	model = "Mele A1000";
 	compatible = "mele,a1000", "allwinner,sun4i-a10";
 
+	aliases {
+		serial0 = &uart0;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
 	leds {
 		compatible = "gpio-leds";
 		pinctrl-names = "default";
diff --git a/arch/arm/boot/dts/sun4i-a10-ba10-tvbox.dts b/arch/arm/boot/dts/sun4i-a10-ba10-tvbox.dts
index bebb803a9456..1a3c7ddc538a 100644
--- a/arch/arm/boot/dts/sun4i-a10-ba10-tvbox.dts
+++ b/arch/arm/boot/dts/sun4i-a10-ba10-tvbox.dts
@@ -54,6 +54,14 @@
 / {
 	model = "BA10 tvbox";
 	compatible = "allwinner,ba10-tvbox", "allwinner,sun4i-a10";
+
+	aliases {
+		serial0 = &uart0;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
 };
 
 &ehci0 {
diff --git a/arch/arm/boot/dts/sun4i-a10-chuwi-v7-cw0825.dts b/arch/arm/boot/dts/sun4i-a10-chuwi-v7-cw0825.dts
index 97fca89eb92b..35fb163827de 100644
--- a/arch/arm/boot/dts/sun4i-a10-chuwi-v7-cw0825.dts
+++ b/arch/arm/boot/dts/sun4i-a10-chuwi-v7-cw0825.dts
@@ -54,6 +54,14 @@
 / {
 	model = "Chuwi V7 CW0825";
 	compatible = "chuwi,v7-cw0825", "allwinner,sun4i-a10";
+
+	aliases {
+		serial0 = &uart0;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
 };
 
 &ehci1 {
diff --git a/arch/arm/boot/dts/sun4i-a10-cubieboard.dts b/arch/arm/boot/dts/sun4i-a10-cubieboard.dts
index 07c2f64b14ee..0ba67d79c2b4 100644
--- a/arch/arm/boot/dts/sun4i-a10-cubieboard.dts
+++ b/arch/arm/boot/dts/sun4i-a10-cubieboard.dts
@@ -57,6 +57,14 @@
 	model = "Cubietech Cubieboard";
 	compatible = "cubietech,a10-cubieboard", "allwinner,sun4i-a10";
 
+	aliases {
+		serial0 = &uart0;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
 	leds {
 		compatible = "gpio-leds";
 		pinctrl-names = "default";
diff --git a/arch/arm/boot/dts/sun4i-a10-gemei-g9.dts b/arch/arm/boot/dts/sun4i-a10-gemei-g9.dts
index 0c7345380793..fbd638a38018 100644
--- a/arch/arm/boot/dts/sun4i-a10-gemei-g9.dts
+++ b/arch/arm/boot/dts/sun4i-a10-gemei-g9.dts
@@ -56,6 +56,14 @@
 / {
 	model = "Gemei G9 Tablet";
 	compatible = "gemei,g9", "allwinner,sun4i-a10";
+
+	aliases {
+		serial0 = &uart0;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
 };
 
 /*
diff --git a/arch/arm/boot/dts/sun4i-a10-hackberry.dts b/arch/arm/boot/dts/sun4i-a10-hackberry.dts
index 3cb067ed8715..f4437883fba7 100644
--- a/arch/arm/boot/dts/sun4i-a10-hackberry.dts
+++ b/arch/arm/boot/dts/sun4i-a10-hackberry.dts
@@ -58,6 +58,14 @@
 	model = "Miniand Hackberry";
 	compatible = "miniand,hackberry", "allwinner,sun4i-a10";
 
+	aliases {
+		serial0 = &uart0;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
 	reg_emac_3v3: emac-3v3 {
 		compatible = "regulator-fixed";
 		regulator-name = "emac-3v3";
diff --git a/arch/arm/boot/dts/sun4i-a10-hyundai-a7hd.dts b/arch/arm/boot/dts/sun4i-a10-hyundai-a7hd.dts
index c88382aacc36..9f06b1805058 100644
--- a/arch/arm/boot/dts/sun4i-a10-hyundai-a7hd.dts
+++ b/arch/arm/boot/dts/sun4i-a10-hyundai-a7hd.dts
@@ -53,6 +53,14 @@
 / {
 	model = "Hyundai A7HD";
 	compatible = "hyundai,a7hd", "allwinner,sun4i-a10";
+
+	aliases {
+		serial0 = &uart0;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
 };
 
 &ehci1 {
diff --git a/arch/arm/boot/dts/sun4i-a10-inet97fv2.dts b/arch/arm/boot/dts/sun4i-a10-inet97fv2.dts
index ab3bbc13db1c..e19ef52f3579 100644
--- a/arch/arm/boot/dts/sun4i-a10-inet97fv2.dts
+++ b/arch/arm/boot/dts/sun4i-a10-inet97fv2.dts
@@ -56,6 +56,14 @@
 / {
 	model = "INet-97F Rev 02";
 	compatible = "primux,inet97fv2", "allwinner,sun4i-a10";
+
+	aliases {
+		serial0 = &uart0;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
 };
 
 &ehci0 {
diff --git a/arch/arm/boot/dts/sun4i-a10-marsboard.dts b/arch/arm/boot/dts/sun4i-a10-marsboard.dts
index 9ee86a700c2b..00c54d2a1824 100644
--- a/arch/arm/boot/dts/sun4i-a10-marsboard.dts
+++ b/arch/arm/boot/dts/sun4i-a10-marsboard.dts
@@ -57,6 +57,14 @@
 	model = "HAOYU Electronics Marsboard A10";
 	compatible = "haoyu,a10-marsboard", "allwinner,sun4i-a10";
 
+	aliases {
+		serial0 = &uart0;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
 	leds {
 		compatible = "gpio-leds";
 		pinctrl-names = "default";
diff --git a/arch/arm/boot/dts/sun4i-a10-mini-xplus.dts b/arch/arm/boot/dts/sun4i-a10-mini-xplus.dts
index dce9a341516b..0f24914c1a6e 100644
--- a/arch/arm/boot/dts/sun4i-a10-mini-xplus.dts
+++ b/arch/arm/boot/dts/sun4i-a10-mini-xplus.dts
@@ -57,6 +57,14 @@
 / {
 	model = "PineRiver Mini X-Plus";
 	compatible = "pineriver,mini-xplus", "allwinner,sun4i-a10";
+
+	aliases {
+		serial0 = &uart0;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
 };
 
 &ehci0 {
diff --git a/arch/arm/boot/dts/sun4i-a10-mk802.dts b/arch/arm/boot/dts/sun4i-a10-mk802.dts
index e9a6886f0d51..0f1c99133c9c 100644
--- a/arch/arm/boot/dts/sun4i-a10-mk802.dts
+++ b/arch/arm/boot/dts/sun4i-a10-mk802.dts
@@ -53,6 +53,14 @@
 / {
 	model = "MK802";
 	compatible = "allwinner,mk802", "allwinner,sun4i-a10";
+
+	aliases {
+		serial0 = &uart0;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
 };
 
 &ehci0 {
diff --git a/arch/arm/boot/dts/sun4i-a10-mk802ii.dts b/arch/arm/boot/dts/sun4i-a10-mk802ii.dts
index 802eda494d1c..f97aa6f523f4 100644
--- a/arch/arm/boot/dts/sun4i-a10-mk802ii.dts
+++ b/arch/arm/boot/dts/sun4i-a10-mk802ii.dts
@@ -53,6 +53,14 @@
 / {
 	model = "MK802ii";
 	compatible = "allwinner,mk802ii", "allwinner,sun4i-a10";
+
+	aliases {
+		serial0 = &uart0;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
 };
 
 &ehci0 {
diff --git a/arch/arm/boot/dts/sun4i-a10-olinuxino-lime.dts b/arch/arm/boot/dts/sun4i-a10-olinuxino-lime.dts
index 03350dff42b1..5840d5e16b99 100644
--- a/arch/arm/boot/dts/sun4i-a10-olinuxino-lime.dts
+++ b/arch/arm/boot/dts/sun4i-a10-olinuxino-lime.dts
@@ -56,6 +56,14 @@
 	model = "Olimex A10-OLinuXino-LIME";
 	compatible = "olimex,a10-olinuxino-lime", "allwinner,sun4i-a10";
 
+	aliases {
+		serial0 = &uart0;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
 	leds {
 		compatible = "gpio-leds";
 		pinctrl-names = "default";
diff --git a/arch/arm/boot/dts/sun4i-a10-pcduino.dts b/arch/arm/boot/dts/sun4i-a10-pcduino.dts
index 6923ca75eb4a..be6948e41648 100644
--- a/arch/arm/boot/dts/sun4i-a10-pcduino.dts
+++ b/arch/arm/boot/dts/sun4i-a10-pcduino.dts
@@ -58,6 +58,13 @@
 	model = "LinkSprite pcDuino";
 	compatible = "linksprite,a10-pcduino", "allwinner,sun4i-a10";
 
+	aliases {
+		serial0 = &uart0;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
 
 	leds {
 		compatible = "gpio-leds";
diff --git a/arch/arm/boot/dts/sun5i-a10s-auxtek-t004.dts b/arch/arm/boot/dts/sun5i-a10s-auxtek-t004.dts
index 6c6fef780984..ceb0582ac90d 100644
--- a/arch/arm/boot/dts/sun5i-a10s-auxtek-t004.dts
+++ b/arch/arm/boot/dts/sun5i-a10s-auxtek-t004.dts
@@ -55,6 +55,14 @@
 	model = "Auxtek t004 A10s hdmi tv-stick";
 	compatible = "allwinner,auxtek-t004", "allwinner,sun5i-a10s";
 
+	aliases {
+		serial0 = &uart0;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
 	leds {
 		compatible = "gpio-leds";
 		pinctrl-names = "default";
diff --git a/arch/arm/boot/dts/sun5i-a10s-mk802.dts b/arch/arm/boot/dts/sun5i-a10s-mk802.dts
index b21af87d9eae..e1a11e1d967d 100644
--- a/arch/arm/boot/dts/sun5i-a10s-mk802.dts
+++ b/arch/arm/boot/dts/sun5i-a10s-mk802.dts
@@ -54,6 +54,14 @@
 	model = "MK802-A10s";
 	compatible = "allwinner,a10s-mk802", "allwinner,sun5i-a10s";
 
+	aliases {
+		serial0 = &uart0;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
 	leds {
 		compatible = "gpio-leds";
 		pinctrl-names = "default";
diff --git a/arch/arm/boot/dts/sun5i-a10s-olinuxino-micro.dts b/arch/arm/boot/dts/sun5i-a10s-olinuxino-micro.dts
index aa88ee887381..85a8745fffb3 100644
--- a/arch/arm/boot/dts/sun5i-a10s-olinuxino-micro.dts
+++ b/arch/arm/boot/dts/sun5i-a10s-olinuxino-micro.dts
@@ -65,6 +65,10 @@
 		serial2 = &uart3;
 	};
 
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
 	leds {
 		compatible = "gpio-leds";
 		pinctrl-names = "default";
diff --git a/arch/arm/boot/dts/sun5i-a10s-r7-tv-dongle.dts b/arch/arm/boot/dts/sun5i-a10s-r7-tv-dongle.dts
index d42ce170e640..9980969d0986 100644
--- a/arch/arm/boot/dts/sun5i-a10s-r7-tv-dongle.dts
+++ b/arch/arm/boot/dts/sun5i-a10s-r7-tv-dongle.dts
@@ -56,6 +56,14 @@
 	model = "R7 A10s hdmi tv-stick";
 	compatible = "allwinner,r7-tv-dongle", "allwinner,sun5i-a10s";
 
+	aliases {
+		serial0 = &uart0;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
 	leds {
 		compatible = "gpio-leds";
 		pinctrl-names = "default";
diff --git a/arch/arm/boot/dts/sun5i-a13-hsg-h702.dts b/arch/arm/boot/dts/sun5i-a13-hsg-h702.dts
index b59255a445bc..adf78a234ffb 100644
--- a/arch/arm/boot/dts/sun5i-a13-hsg-h702.dts
+++ b/arch/arm/boot/dts/sun5i-a13-hsg-h702.dts
@@ -59,6 +59,10 @@
 	aliases {
 		serial0 = &uart1;
 	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
 };
 
 &cpu0 {
diff --git a/arch/arm/boot/dts/sun5i-a13-olinuxino-micro.dts b/arch/arm/boot/dts/sun5i-a13-olinuxino-micro.dts
index bdb0a094223f..4a00bcee9272 100644
--- a/arch/arm/boot/dts/sun5i-a13-olinuxino-micro.dts
+++ b/arch/arm/boot/dts/sun5i-a13-olinuxino-micro.dts
@@ -61,6 +61,10 @@
 		serial0 = &uart1;
 	};
 
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
 	leds {
 		compatible = "gpio-leds";
 		pinctrl-names = "default";
diff --git a/arch/arm/boot/dts/sun5i-a13-olinuxino.dts b/arch/arm/boot/dts/sun5i-a13-olinuxino.dts
index d09c57b4905b..44401565533f 100644
--- a/arch/arm/boot/dts/sun5i-a13-olinuxino.dts
+++ b/arch/arm/boot/dts/sun5i-a13-olinuxino.dts
@@ -63,6 +63,10 @@
 		serial0 = &uart1;
 	};
 
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
 	leds {
 		compatible = "gpio-leds";
 		pinctrl-names = "default";
diff --git a/arch/arm/boot/dts/sun6i-a31-app4-evb1.dts b/arch/arm/boot/dts/sun6i-a31-app4-evb1.dts
index 98a74da02fd7..b7b1df4be460 100644
--- a/arch/arm/boot/dts/sun6i-a31-app4-evb1.dts
+++ b/arch/arm/boot/dts/sun6i-a31-app4-evb1.dts
@@ -58,8 +58,12 @@
 	model = "Allwinner A31 APP4 EVB1 Evaluation Board";
 	compatible = "allwinner,app4-evb1", "allwinner,sun6i-a31";
 
+	aliases {
+		serial0 = &uart0;
+	};
+
 	chosen {
-		bootargs = "earlyprintk console=ttyS0,115200";
+		stdout-path = "serial0:115200n8";
 	};
 };
 
diff --git a/arch/arm/boot/dts/sun6i-a31-colombus.dts b/arch/arm/boot/dts/sun6i-a31-colombus.dts
index d6e925c381a3..95d7ec2b2955 100644
--- a/arch/arm/boot/dts/sun6i-a31-colombus.dts
+++ b/arch/arm/boot/dts/sun6i-a31-colombus.dts
@@ -58,8 +58,12 @@
 	model = "WITS A31 Colombus Evaluation Board";
 	compatible = "wits,colombus", "allwinner,sun6i-a31";
 
+	aliases {
+		serial0 = &uart0;
+	};
+
 	chosen {
-		bootargs = "earlyprintk console=ttyS0,115200";
+		stdout-path = "serial0:115200n8";
 	};
 };
 
diff --git a/arch/arm/boot/dts/sun6i-a31-hummingbird.dts b/arch/arm/boot/dts/sun6i-a31-hummingbird.dts
index 25a3ef49bb71..1e820bc0c768 100644
--- a/arch/arm/boot/dts/sun6i-a31-hummingbird.dts
+++ b/arch/arm/boot/dts/sun6i-a31-hummingbird.dts
@@ -58,8 +58,12 @@
 	model = "Merrii A31 Hummingbird";
 	compatible = "merrii,a31-hummingbird", "allwinner,sun6i-a31";
 
+	aliases {
+		serial0 = &uart0;
+	};
+
 	chosen {
-		bootargs = "earlyprintk console=ttyS0,115200";
+		stdout-path = "serial0:115200n8";
 	};
 
 	wifi_pwrseq: wifi_pwrseq {
diff --git a/arch/arm/boot/dts/sun6i-a31-i7.dts b/arch/arm/boot/dts/sun6i-a31-i7.dts
index 049d3a6c09f2..ce37d69d3416 100644
--- a/arch/arm/boot/dts/sun6i-a31-i7.dts
+++ b/arch/arm/boot/dts/sun6i-a31-i7.dts
@@ -56,8 +56,12 @@
 	model = "Mele I7 Quad top set box";
 	compatible = "mele,i7", "allwinner,sun6i-a31";
 
+	aliases {
+		serial0 = &uart0;
+	};
+
 	chosen {
-		bootargs = "console=ttyS0,115200";
+		stdout-path = "serial0:115200n8";
 	};
 
 	leds {
diff --git a/arch/arm/boot/dts/sun6i-a31-m9.dts b/arch/arm/boot/dts/sun6i-a31-m9.dts
index 5cbbbd696b00..29f5fc717b4f 100644
--- a/arch/arm/boot/dts/sun6i-a31-m9.dts
+++ b/arch/arm/boot/dts/sun6i-a31-m9.dts
@@ -56,8 +56,12 @@
 	model = "Mele M9 / A1000G Quad top set box";
 	compatible = "mele,m9", "allwinner,sun6i-a31";
 
+	aliases {
+		serial0 = &uart0;
+	};
+
 	chosen {
-		bootargs = "earlyprintk console=ttyS0,115200";
+		stdout-path = "serial0:115200n8";
 	};
 
 	leds {
diff --git a/arch/arm/boot/dts/sun6i-a31s-cs908.dts b/arch/arm/boot/dts/sun6i-a31s-cs908.dts
index 3f0cc8c58df8..68cb2bf39988 100644
--- a/arch/arm/boot/dts/sun6i-a31s-cs908.dts
+++ b/arch/arm/boot/dts/sun6i-a31s-cs908.dts
@@ -53,6 +53,14 @@
 / {
 	model = "CSQ CS908 top set box";
 	compatible = "csq,cs908", "allwinner,sun6i-a31s";
+
+	aliases {
+		serial0 = &uart0;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
 };
 
 &ehci0 {
diff --git a/arch/arm/boot/dts/sun7i-a20-bananapi.dts b/arch/arm/boot/dts/sun7i-a20-bananapi.dts
index 6d1faf069e7e..b952ac445504 100644
--- a/arch/arm/boot/dts/sun7i-a20-bananapi.dts
+++ b/arch/arm/boot/dts/sun7i-a20-bananapi.dts
@@ -65,6 +65,10 @@
 		serial2 = &uart7;
 	};
 
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
 	leds {
 		compatible = "gpio-leds";
 		pinctrl-names = "default";
diff --git a/arch/arm/boot/dts/sun7i-a20-bananapro.dts b/arch/arm/boot/dts/sun7i-a20-bananapro.dts
index fb89fe7ed21b..9d9027f25a44 100644
--- a/arch/arm/boot/dts/sun7i-a20-bananapro.dts
+++ b/arch/arm/boot/dts/sun7i-a20-bananapro.dts
@@ -55,6 +55,16 @@
 	model = "LeMaker Banana Pro";
 	compatible = "lemaker,bananapro", "allwinner,sun7i-a20";
 
+	aliases {
+		serial0 = &uart0;
+		serial1 = &uart2;
+		serial2 = &uart7;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
 	leds {
 		compatible = "gpio-leds";
 		pinctrl-names = "default";
diff --git a/arch/arm/boot/dts/sun7i-a20-cubieboard2.dts b/arch/arm/boot/dts/sun7i-a20-cubieboard2.dts
index 8c847eb70cad..3c817ac9360b 100644
--- a/arch/arm/boot/dts/sun7i-a20-cubieboard2.dts
+++ b/arch/arm/boot/dts/sun7i-a20-cubieboard2.dts
@@ -59,6 +59,14 @@
 	model = "Cubietech Cubieboard2";
 	compatible = "cubietech,cubieboard2", "allwinner,sun7i-a20";
 
+	aliases {
+		serial0 = &uart0;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
 	leds {
 		compatible = "gpio-leds";
 		pinctrl-names = "default";
diff --git a/arch/arm/boot/dts/sun7i-a20-cubietruck.dts b/arch/arm/boot/dts/sun7i-a20-cubietruck.dts
index 5af1df795f3c..613a19e63e58 100644
--- a/arch/arm/boot/dts/sun7i-a20-cubietruck.dts
+++ b/arch/arm/boot/dts/sun7i-a20-cubietruck.dts
@@ -59,6 +59,14 @@
 	model = "Cubietech Cubietruck";
 	compatible = "cubietech,cubietruck", "allwinner,sun7i-a20";
 
+	aliases {
+		serial0 = &uart0;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
 	leds {
 		compatible = "gpio-leds";
 		pinctrl-names = "default";
diff --git a/arch/arm/boot/dts/sun7i-a20-hummingbird.dts b/arch/arm/boot/dts/sun7i-a20-hummingbird.dts
index 8c30e126abe6..d3f15c2e721e 100644
--- a/arch/arm/boot/dts/sun7i-a20-hummingbird.dts
+++ b/arch/arm/boot/dts/sun7i-a20-hummingbird.dts
@@ -67,6 +67,10 @@
 		serial4 = &uart5;
 	};
 
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
 	reg_mmc3_vdd: mmc3_vdd {
 		compatible = "regulator-fixed";
 		pinctrl-names = "default";
diff --git a/arch/arm/boot/dts/sun7i-a20-i12-tvbox.dts b/arch/arm/boot/dts/sun7i-a20-i12-tvbox.dts
index c11574c2b931..3f99b3f222a7 100644
--- a/arch/arm/boot/dts/sun7i-a20-i12-tvbox.dts
+++ b/arch/arm/boot/dts/sun7i-a20-i12-tvbox.dts
@@ -57,6 +57,14 @@
 	model = "I12 / Q5 / QT840A A20 tvbox";
 	compatible = "allwinner,i12-tvbox", "allwinner,sun7i-a20";
 
+	aliases {
+		serial0 = &uart0;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
 	leds {
 		compatible = "gpio-leds";
 		pinctrl-names = "default";
diff --git a/arch/arm/boot/dts/sun7i-a20-m3.dts b/arch/arm/boot/dts/sun7i-a20-m3.dts
index 44ba67dfb494..f2fb26e7d6e5 100644
--- a/arch/arm/boot/dts/sun7i-a20-m3.dts
+++ b/arch/arm/boot/dts/sun7i-a20-m3.dts
@@ -59,6 +59,14 @@
 	model = "Mele M3";
 	compatible = "mele,m3", "allwinner,sun7i-a20";
 
+	aliases {
+		serial0 = &uart0;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
 	leds {
 		compatible = "gpio-leds";
 		pinctrl-names = "default";
diff --git a/arch/arm/boot/dts/sun7i-a20-olinuxino-lime.dts b/arch/arm/boot/dts/sun7i-a20-olinuxino-lime.dts
index 68efd2f33307..6592cb21e32c 100644
--- a/arch/arm/boot/dts/sun7i-a20-olinuxino-lime.dts
+++ b/arch/arm/boot/dts/sun7i-a20-olinuxino-lime.dts
@@ -60,6 +60,14 @@
 	model = "Olimex A20-OLinuXino-LIME";
 	compatible = "olimex,a20-olinuxino-lime", "allwinner,sun7i-a20";
 
+	aliases {
+		serial0 = &uart0;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
 	leds {
 		compatible = "gpio-leds";
 		pinctrl-names = "default";
diff --git a/arch/arm/boot/dts/sun7i-a20-olinuxino-lime2.dts b/arch/arm/boot/dts/sun7i-a20-olinuxino-lime2.dts
index 5e57157f742d..3a7a2c2b488c 100644
--- a/arch/arm/boot/dts/sun7i-a20-olinuxino-lime2.dts
+++ b/arch/arm/boot/dts/sun7i-a20-olinuxino-lime2.dts
@@ -57,6 +57,14 @@
 	model = "Olimex A20-OLinuXino-LIME2";
 	compatible = "olimex,a20-olinuxino-lime2", "allwinner,sun7i-a20";
 
+	aliases {
+		serial0 = &uart0;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
 	leds {
 		compatible = "gpio-leds";
 		pinctrl-names = "default";
diff --git a/arch/arm/boot/dts/sun7i-a20-olinuxino-micro.dts b/arch/arm/boot/dts/sun7i-a20-olinuxino-micro.dts
index f6f06311e25b..82802b6cb192 100644
--- a/arch/arm/boot/dts/sun7i-a20-olinuxino-micro.dts
+++ b/arch/arm/boot/dts/sun7i-a20-olinuxino-micro.dts
@@ -68,6 +68,10 @@
 		spi1 = &spi2;
 	};
 
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
 	leds {
 		compatible = "gpio-leds";
 		pinctrl-names = "default";
diff --git a/arch/arm/boot/dts/sun7i-a20-pcduino3-nano.dts b/arch/arm/boot/dts/sun7i-a20-pcduino3-nano.dts
index 632b8a9e092f..810c5f764595 100644
--- a/arch/arm/boot/dts/sun7i-a20-pcduino3-nano.dts
+++ b/arch/arm/boot/dts/sun7i-a20-pcduino3-nano.dts
@@ -55,6 +55,14 @@
 	model = "LinkSprite pcDuino3 Nano";
 	compatible = "linksprite,pcduino3-nano", "allwinner,sun7i-a20";
 
+	aliases {
+		serial0 = &uart0;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
 	leds {
 		compatible = "gpio-leds";
 		pinctrl-names = "default";
diff --git a/arch/arm/boot/dts/sun7i-a20-pcduino3.dts b/arch/arm/boot/dts/sun7i-a20-pcduino3.dts
index 09ec96b2b7d7..cd05267781fb 100644
--- a/arch/arm/boot/dts/sun7i-a20-pcduino3.dts
+++ b/arch/arm/boot/dts/sun7i-a20-pcduino3.dts
@@ -59,6 +59,14 @@
 	model = "LinkSprite pcDuino3";
 	compatible = "linksprite,pcduino3", "allwinner,sun7i-a20";
 
+	aliases {
+		serial0 = &uart0;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
 	leds {
 		compatible = "gpio-leds";
 		pinctrl-names = "default";
diff --git a/arch/arm/boot/dts/sun7i-a20-wexler-tab7200.dts b/arch/arm/boot/dts/sun7i-a20-wexler-tab7200.dts
index ea133bd3dd87..2ad3b09dcb6f 100644
--- a/arch/arm/boot/dts/sun7i-a20-wexler-tab7200.dts
+++ b/arch/arm/boot/dts/sun7i-a20-wexler-tab7200.dts
@@ -57,6 +57,14 @@
 / {
 	model = "Wexler TAB7200";
 	compatible = "wexler,tab7200", "allwinner,sun7i-a20";
+
+	aliases {
+		serial0 = &uart0;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
 };
 
 &cpu0 {
diff --git a/arch/arm/boot/dts/sun8i-a23-ippo-q8h-v5.dts b/arch/arm/boot/dts/sun8i-a23-ippo-q8h-v5.dts
index 4cb25f8267c8..f5658d123f9b 100644
--- a/arch/arm/boot/dts/sun8i-a23-ippo-q8h-v5.dts
+++ b/arch/arm/boot/dts/sun8i-a23-ippo-q8h-v5.dts
@@ -64,7 +64,7 @@
 	};
 
 	chosen {
-		bootargs = "earlyprintk console=ttyS0,115200";
+		stdout-path = "serial0:115200n8";
 	};
 };
 
diff --git a/arch/arm/boot/dts/sun9i-a80-optimus.dts b/arch/arm/boot/dts/sun9i-a80-optimus.dts
index c6ca116c59d2..e463138a4d04 100644
--- a/arch/arm/boot/dts/sun9i-a80-optimus.dts
+++ b/arch/arm/boot/dts/sun9i-a80-optimus.dts
@@ -64,7 +64,7 @@
 	};
 
 	chosen {
-		bootargs = "earlyprintk console=ttyS0,115200";
+		stdout-path = "serial0:115200n8";
 	};
 
 	leds {