From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Date: Wed, 30 Aug 2017 10:16:06 +0000 (+0200)
Subject: arm64: dts: marvell: add UART muxing on Armada 7K/8K
X-Git-Tag: v4.15-rc1~75^2~16^2~16
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=9e83bbdb6fc3414a46ce92ceafa53f0067bc1f57;p=thirdparty%2Fkernel%2Flinux.git

arm64: dts: marvell: add UART muxing on Armada 7K/8K

This commit adds the relevant details in the Armada 7K/8K Device Tree
to properly mux the UART used for the serial console. Since there is
basically only one possible muxing for the UART0 on the AP, the muxing
configuration is described in armada-ap806.dtsi, and selected from the
individual boards (other boards could be using a different UART).

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
---

diff --git a/arch/arm64/boot/dts/marvell/armada-7040-db.dts b/arch/arm64/boot/dts/marvell/armada-7040-db.dts
index 9c3bdf87e5433..64a8e020c09de 100644
--- a/arch/arm64/boot/dts/marvell/armada-7040-db.dts
+++ b/arch/arm64/boot/dts/marvell/armada-7040-db.dts
@@ -124,6 +124,8 @@
 
 &uart0 {
 	status = "okay";
+	pinctrl-0 = <&uart0_pins>;
+	pinctrl-names = "default";
 };
 
 
diff --git a/arch/arm64/boot/dts/marvell/armada-8040-db.dts b/arch/arm64/boot/dts/marvell/armada-8040-db.dts
index 0d7b2ae466100..2a9b68ea73924 100644
--- a/arch/arm64/boot/dts/marvell/armada-8040-db.dts
+++ b/arch/arm64/boot/dts/marvell/armada-8040-db.dts
@@ -139,6 +139,8 @@
 /* Accessible over the mini-USB CON9 connector on the main board */
 &uart0 {
 	status = "okay";
+	pinctrl-0 = <&uart0_pins>;
+	pinctrl-names = "default";
 };
 
 
diff --git a/arch/arm64/boot/dts/marvell/armada-8040-mcbin.dts b/arch/arm64/boot/dts/marvell/armada-8040-mcbin.dts
index acf5c7d16d79b..e7a7cbee2fe4f 100644
--- a/arch/arm64/boot/dts/marvell/armada-8040-mcbin.dts
+++ b/arch/arm64/boot/dts/marvell/armada-8040-mcbin.dts
@@ -101,6 +101,8 @@
 
 &uart0 {
 	status = "okay";
+	pinctrl-0 = <&uart0_pins>;
+	pinctrl-names = "default";
 };
 
 &ap_sdhci0 {
diff --git a/arch/arm64/boot/dts/marvell/armada-ap806.dtsi b/arch/arm64/boot/dts/marvell/armada-ap806.dtsi
index 4d360713ed124..1eb51e015002e 100644
--- a/arch/arm64/boot/dts/marvell/armada-ap806.dtsi
+++ b/arch/arm64/boot/dts/marvell/armada-ap806.dtsi
@@ -263,6 +263,11 @@
 
 				ap_pinctrl: pinctrl {
 					compatible = "marvell,ap806-pinctrl";
+
+					uart0_pins: uart0-pins {
+						marvell,pins = "mpp11", "mpp19";
+						marvell,function = "uart0";
+					};
 				};
 
 				ap_gpio: gpio {