There is another uart next to the console uart used by vendor uboot and
kernel, enable it and document its location.

Signed-off-by: Andreas Kemnade <andr...@kemnade.info>
---
 arch/arm/boot/dts/e60k02.dtsi              |  6 ++++++
 arch/arm/boot/dts/imx6sl-tolino-shine3.dts | 13 ++++++++++++-
 arch/arm/boot/dts/imx6sll-kobo-clarahd.dts | 13 ++++++++++++-
 3 files changed, 30 insertions(+), 2 deletions(-)

diff --git a/arch/arm/boot/dts/e60k02.dtsi b/arch/arm/boot/dts/e60k02.dtsi
index 3af1ab4458ef..cfb239d5186a 100644
--- a/arch/arm/boot/dts/e60k02.dtsi
+++ b/arch/arm/boot/dts/e60k02.dtsi
@@ -278,6 +278,12 @@
 };
 
 &uart1 {
+       /* J4, through-hole */
+       status = "okay";
+};
+
+&uart4 {
+       /* TP198, next to J4, SMD pads */
        status = "okay";
 };
 
diff --git a/arch/arm/boot/dts/imx6sl-tolino-shine3.dts 
b/arch/arm/boot/dts/imx6sl-tolino-shine3.dts
index 62d2ebda04ff..e3f1e8d79528 100644
--- a/arch/arm/boot/dts/imx6sl-tolino-shine3.dts
+++ b/arch/arm/boot/dts/imx6sl-tolino-shine3.dts
@@ -94,7 +94,6 @@
                        MX6SL_PAD_KEY_ROW7__GPIO4_IO07          0x79
                        MX6SL_PAD_ECSPI2_MOSI__GPIO4_IO13       0x79
                        MX6SL_PAD_KEY_COL5__GPIO4_IO02          0x79
-                       MX6SL_PAD_KEY_ROW6__GPIO4_IO05          0x79
                >;
        };
 
@@ -160,6 +159,13 @@
                >;
        };
 
+       pinctrl_uart4: uart4grp {
+               fsl,pins = <
+                       MX6SL_PAD_KEY_ROW6__UART4_TX_DATA 0x1b0b1
+                       MX6SL_PAD_KEY_COL6__UART4_RX_DATA 0x1b0b1
+               >;
+       };
+
        pinctrl_usbotg1: usbotg1grp {
                fsl,pins = <
                        MX6SL_PAD_EPDC_PWRCOM__USB_OTG1_ID 0x17059
@@ -300,6 +306,11 @@
        pinctrl-0 = <&pinctrl_uart1>;
 };
 
+&uart4 {
+       pinctrl-names = "default";
+       pinctrl-0 = <&pinctrl_uart4>;
+};
+
 &usdhc2 {
        pinctrl-names = "default", "state_100mhz", "state_200mhz", "sleep";
        pinctrl-0 = <&pinctrl_usdhc2>;
diff --git a/arch/arm/boot/dts/imx6sll-kobo-clarahd.dts 
b/arch/arm/boot/dts/imx6sll-kobo-clarahd.dts
index 7214d1c98249..90b32f5eb529 100644
--- a/arch/arm/boot/dts/imx6sll-kobo-clarahd.dts
+++ b/arch/arm/boot/dts/imx6sll-kobo-clarahd.dts
@@ -104,7 +104,6 @@
                        MX6SLL_PAD_KEY_ROW7__GPIO4_IO07         0x79
                        MX6SLL_PAD_ECSPI2_MOSI__GPIO4_IO13      0x79
                        MX6SLL_PAD_KEY_COL5__GPIO4_IO02         0x79
-                       MX6SLL_PAD_KEY_ROW6__GPIO4_IO05         0x79
                >;
        };
 
@@ -170,6 +169,13 @@
                >;
        };
 
+       pinctrl_uart4: uart4grp {
+               fsl,pins = <
+                       MX6SLL_PAD_KEY_ROW6__UART4_DCE_TX 0x1b0b1
+                       MX6SLL_PAD_KEY_COL6__UART4_DCE_RX 0x1b0b1
+               >;
+       };
+
        pinctrl_usbotg1: usbotg1grp {
                fsl,pins = <
                        MX6SLL_PAD_EPDC_PWR_COM__USB_OTG1_ID 0x17059
@@ -302,6 +308,11 @@
        pinctrl-0 = <&pinctrl_uart1>;
 };
 
+&uart4 {
+       pinctrl-names = "default";
+       pinctrl-0 = <&pinctrl_uart4>;
+};
+
 &usdhc2 {
        pinctrl-names = "default", "state_100mhz", "state_200mhz","sleep";
        pinctrl-0 = <&pinctrl_usdhc2>;
-- 
2.20.1

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