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authorStefan Agner <stefan.agner@toradex.com>2018-04-17 13:09:38 +0200
committerMarcel Ziswiler <marcel.ziswiler@toradex.com>2018-12-24 01:27:32 +0100
commit7f785ef455acb05d283eefec8b5c4308236c3050 (patch)
tree1fbc67b862a359ba7d4c69f6d40a68349e09a93f
parent72919eb5f9e7a9aeb5fc1c2aa694b07994fb5a8d (diff)
ARM: dts: imx6: add required RS-485 properties
To operate RS-485 on Toradex Carrier Boards a low active RTS signal is required. Furthermore, a low active RTS signal requires the receiver to be active (this seems to be a hardware limitation of the i.MX UART). Signed-off-by: Stefan Agner <stefan.agner@toradex.com> Acked-by: Max Krummenacher <max.krummenacher@toradex.com>
-rw-r--r--arch/arm/boot/dts/imx6dl-colibri-cam-eval-v3.dts2
-rw-r--r--arch/arm/boot/dts/imx6dl-colibri-eval-v3.dts2
-rw-r--r--arch/arm/boot/dts/imx6qdl-apalis-eval.dtsi2
-rw-r--r--arch/arm/boot/dts/imx6qdl-apalis-ixora-v1.1.dtsi2
-rw-r--r--arch/arm/boot/dts/imx6qdl-apalis-ixora.dtsi2
5 files changed, 10 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/imx6dl-colibri-cam-eval-v3.dts b/arch/arm/boot/dts/imx6dl-colibri-cam-eval-v3.dts
index f755412a33bc..53f91680517b 100644
--- a/arch/arm/boot/dts/imx6dl-colibri-cam-eval-v3.dts
+++ b/arch/arm/boot/dts/imx6dl-colibri-cam-eval-v3.dts
@@ -267,6 +267,8 @@
status = "okay";
#if 0
linux,rs485-enabled-at-boot-time;
+ rs485-rts-active-low;
+ rs485-rx-during-tx;
#endif
};
diff --git a/arch/arm/boot/dts/imx6dl-colibri-eval-v3.dts b/arch/arm/boot/dts/imx6dl-colibri-eval-v3.dts
index 6889d3f316e2..866c943d1423 100644
--- a/arch/arm/boot/dts/imx6dl-colibri-eval-v3.dts
+++ b/arch/arm/boot/dts/imx6dl-colibri-eval-v3.dts
@@ -264,6 +264,8 @@
status = "okay";
#if 0
linux,rs485-enabled-at-boot-time;
+ rs485-rts-active-low;
+ rs485-rx-during-tx;
#endif
};
diff --git a/arch/arm/boot/dts/imx6qdl-apalis-eval.dtsi b/arch/arm/boot/dts/imx6qdl-apalis-eval.dtsi
index 5ae46e87e264..4650dc98b997 100644
--- a/arch/arm/boot/dts/imx6qdl-apalis-eval.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-apalis-eval.dtsi
@@ -372,6 +372,8 @@
status = "okay";
#if 0
linux,rs485-enabled-at-boot-time;
+ rs485-rts-active-low;
+ rs485-rx-during-tx;
#endif
};
diff --git a/arch/arm/boot/dts/imx6qdl-apalis-ixora-v1.1.dtsi b/arch/arm/boot/dts/imx6qdl-apalis-ixora-v1.1.dtsi
index 709c1b8f0f66..9b4c65530b7a 100644
--- a/arch/arm/boot/dts/imx6qdl-apalis-ixora-v1.1.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-apalis-ixora-v1.1.dtsi
@@ -372,6 +372,8 @@
status = "okay";
#if 0
linux,rs485-enabled-at-boot-time;
+ rs485-rts-active-low;
+ rs485-rx-during-tx;
#endif
};
diff --git a/arch/arm/boot/dts/imx6qdl-apalis-ixora.dtsi b/arch/arm/boot/dts/imx6qdl-apalis-ixora.dtsi
index bcb607689117..91c617a8ef5f 100644
--- a/arch/arm/boot/dts/imx6qdl-apalis-ixora.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-apalis-ixora.dtsi
@@ -342,6 +342,8 @@
status = "okay";
#if 0
linux,rs485-enabled-at-boot-time;
+ rs485-rts-active-low;
+ rs485-rx-during-tx;
#endif
};