diff mbox series

[v3,2/3] ARM: dts: imx6qdl-tqma6: add ERR006687 hardware workaround for "a" variant

Message ID 20211122113740.2348-2-matthias.schiffer@ew.tq-group.com (mailing list archive)
State New, archived
Headers show
Series [v3,1/3] dt-bindings: arm: fsl: add TQ-Systems boards based on i.MX6Q/QP/DL | expand

Commit Message

Matthias Schiffer Nov. 22, 2021, 11:37 a.m. UTC
The TQMa6x "a" has a workaround for ERR006687 implemented in hardware.
Add the required pinmuxing and related setup to make use of this.

As board DTS files based on the TQMa6x SoMs will define their own
pinmuxing for the FEC ethernet controller as well, we can't apply this
pin group unconditionally; instead, it is the responsibility of the
board DTs derived from imx6qdl-tqma6a.dtsi to include this group.

Signed-off-by: Matthias Schiffer <matthias.schiffer@ew.tq-group.com>
---

v2: no changes
v3: changed commit title

 arch/arm/boot/dts/imx6qdl-tqma6a.dtsi | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)
diff mbox series

Patch

diff --git a/arch/arm/boot/dts/imx6qdl-tqma6a.dtsi b/arch/arm/boot/dts/imx6qdl-tqma6a.dtsi
index b679bec78e6c..bfb67da64b96 100644
--- a/arch/arm/boot/dts/imx6qdl-tqma6a.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-tqma6a.dtsi
@@ -4,6 +4,12 @@ 
  * Copyright 2013-2017 Markus Niebel <Markus.Niebel@tq-group.com>
  */
 
+&fec {
+	interrupts-extended = <&gpio1 6 IRQ_TYPE_LEVEL_HIGH>,
+			      <&intc 0 119 IRQ_TYPE_LEVEL_HIGH>;
+	fsl,err006687-workaround-present;
+};
+
 &i2c1 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_i2c1>;
@@ -26,3 +32,17 @@ 
 		pagesize = <32>;
 	};
 };
+
+&iomuxc {
+	/*
+	 * This pinmuxing is required for the ERR006687 workaround. Board
+	 * DTS files that enable the FEC controller with
+	 * fsl,err006687-workaround-present must include this group.
+	 */
+	pinctrl_enet_fix: enetfixgrp {
+		fsl,pins = <
+			/* ENET ping patch */
+			MX6QDL_PAD_GPIO_6__ENET_IRQ 0x000b1
+		>;
+	};
+};