From: Primoz Fiser <primoz.fiser@norik.com>
To: Shawn Guo <shawnguo@kernel.org>,
Sascha Hauer <s.hauer@pengutronix.de>,
Pengutronix Kernel Team <kernel@pengutronix.de>,
Fabio Estevam <festevam@gmail.com>, Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>
Cc: imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
upstream@lists.phytec.de
Subject: [PATCH v2 1/2] arm64: dts: freescale: imx93-phyboard-nash: Add jtag overlay
Date: Tue, 28 Oct 2025 12:58:19 +0100 [thread overview]
Message-ID: <20251028115820.3165399-1-primoz.fiser@norik.com> (raw)
Add overlay to enable JTAG pins on the board's JTAG (X41) connector.
Signed-off-by: Primoz Fiser <primoz.fiser@norik.com>
---
Changes in v2:
- add suggested explanation comment
Link to v1: https://lore.kernel.org/all/20251007084028.1125185-1-primoz.fiser@norik.com/
arch/arm64/boot/dts/freescale/Makefile | 2 ++
.../freescale/imx93-phyboard-nash-jtag.dtso | 31 +++++++++++++++++++
2 files changed, 33 insertions(+)
create mode 100644 arch/arm64/boot/dts/freescale/imx93-phyboard-nash-jtag.dtso
diff --git a/arch/arm64/boot/dts/freescale/Makefile b/arch/arm64/boot/dts/freescale/Makefile
index 34a81d34de39..33151065684f 100644
--- a/arch/arm64/boot/dts/freescale/Makefile
+++ b/arch/arm64/boot/dts/freescale/Makefile
@@ -357,10 +357,12 @@ 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
+ >;
+ };
+};
--
2.34.1
next reply other threads:[~2025-10-28 11:58 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-10-28 11:58 Primoz Fiser [this message]
2025-10-28 11:58 ` [PATCH v2 2/2] arm64: dts: freescale: imx93-phyboard-nash: Add pwm-fan overlay Primoz Fiser
2025-11-16 9:42 ` [PATCH v2 1/2] arm64: dts: freescale: imx93-phyboard-nash: Add jtag overlay Shawn Guo
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