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authorPrimoz Fiser <primoz.fiser@norik.com>2025-10-28 14:58:19 +0300
committerShawn Guo <shawnguo@kernel.org>2025-11-16 12:41:18 +0300
commitaf21bfd1f7ce1cc05d0ee2e698efba28e4cc6c6b (patch)
tree0ce9613616f9721e3f661b5809a4310e68e08812
parent3b0bf0659551e9df4f3d28a5ce92ea1c51f275a2 (diff)
downloadlinux-af21bfd1f7ce1cc05d0ee2e698efba28e4cc6c6b.tar.xz
arm64: dts: freescale: imx93-phyboard-nash: Add jtag overlay
Add overlay to enable JTAG pins on the board's JTAG (X41) connector. Signed-off-by: Primoz Fiser <primoz.fiser@norik.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
-rw-r--r--arch/arm64/boot/dts/freescale/Makefile2
-rw-r--r--arch/arm64/boot/dts/freescale/imx93-phyboard-nash-jtag.dtso31
2 files changed, 33 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/freescale/Makefile b/arch/arm64/boot/dts/freescale/Makefile
index 1512f0d437cf..ac24c563c3c8 100644
--- a/arch/arm64/boot/dts/freescale/Makefile
+++ b/arch/arm64/boot/dts/freescale/Makefile
@@ -380,10 +380,12 @@ dtb-$(CONFIG_ARCH_MXC) += imx93-kontron-bl-osm-s.dtb
dtb-$(CONFIG_ARCH_MXC) += imx93-phyboard-nash.dtb
dtb-$(CONFIG_ARCH_MXC) += imx93-phyboard-segin.dtb
+imx93-phyboard-nash-jtag-dtbs += imx93-phyboard-nash.dtb imx93-phyboard-nash-jtag.dtbo
imx93-phyboard-nash-peb-wlbt-07-dtbs += imx93-phyboard-nash.dtb imx93-phyboard-nash-peb-wlbt-07.dtbo
imx93-phyboard-segin-peb-eval-01-dtbs += imx93-phyboard-segin.dtb imx93-phyboard-segin-peb-eval-01.dtbo
imx93-phyboard-segin-peb-wlbt-05-dtbs += imx93-phyboard-segin.dtb imx93-phyboard-segin-peb-wlbt-05.dtbo
imx93-phycore-rpmsg-dtbs += imx93-phyboard-nash.dtb imx93-phyboard-segin.dtb imx93-phycore-rpmsg.dtbo
+dtb-$(CONFIG_ARCH_MXC) += imx93-phyboard-nash-jtag.dtb
dtb-$(CONFIG_ARCH_MXC) += imx93-phyboard-nash-peb-wlbt-07.dtb
dtb-$(CONFIG_ARCH_MXC) += imx93-phyboard-segin-peb-eval-01.dtb
dtb-$(CONFIG_ARCH_MXC) += imx93-phyboard-segin-peb-wlbt-05.dtb
diff --git a/arch/arm64/boot/dts/freescale/imx93-phyboard-nash-jtag.dtso b/arch/arm64/boot/dts/freescale/imx93-phyboard-nash-jtag.dtso
new file mode 100644
index 000000000000..89f93dca3208
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/imx93-phyboard-nash-jtag.dtso
@@ -0,0 +1,31 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (C) 2025 PHYTEC Messtechnik GmbH
+ * Author: Primoz Fiser <primoz.fiser@norik.com>
+ */
+
+#include "imx93-pinfunc.h"
+
+/dts-v1/;
+/plugin/;
+
+/*
+ * NOTE: Bind pinctrl_jtag to gpio2 so that the pinctrl settings are applied.
+ * JTAG itself has no dedicated driver, so without attaching it to an active
+ * device node (like gpio2), the pinmux configuration would not take effect.
+ */
+&gpio2 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_jtag>;
+};
+
+&iomuxc {
+ pinctrl_jtag: jtaggrp {
+ fsl,pins = <
+ MX93_PAD_GPIO_IO24__JTAG_MUX_TDO 0x31e
+ MX93_PAD_GPIO_IO25__JTAG_MUX_TCK 0x31e
+ MX93_PAD_GPIO_IO26__JTAG_MUX_TDI 0x31e
+ MX93_PAD_GPIO_IO27__JTAG_MUX_TMS 0x31e
+ >;
+ };
+};