From: Sherry Sun <sherry.sun@nxp.com>
To: robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org,
Frank.Li@nxp.com, s.hauer@pengutronix.de, kernel@pengutronix.de,
festevam@gmail.com, hongxing.zhu@nxp.com
Cc: imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH] arm64: dts: imx95-15x15-evk: Disable PCIe bus in the default dts
Date: Tue, 17 Mar 2026 11:10:24 +0800 [thread overview]
Message-ID: <20260317031024.444157-1-sherry.sun@nxp.com> (raw)
Disable PCIe bus in the default dts to avoid the shared regulatory
between SDIO and PCIe buses, the random probe order between the two
buses may break the PCIe initialization sequence which cause PCIe
devices has probability of failing to detect.
Enable the SDIO WiFi in the default imx95-15x15-evk.dts, and add a
separate imx95-15x15-evk-pcie.dtso to enable PCIe bus.
Signed-off-by: Sherry Sun <sherry.sun@nxp.com>
---
arch/arm64/boot/dts/freescale/Makefile | 5 ++++-
.../boot/dts/freescale/imx95-15x15-evk-pcie.dtso | 15 +++++++++++++++
arch/arm64/boot/dts/freescale/imx95-15x15-evk.dts | 2 +-
3 files changed, 20 insertions(+), 2 deletions(-)
create mode 100644 arch/arm64/boot/dts/freescale/imx95-15x15-evk-pcie.dtso
diff --git a/arch/arm64/boot/dts/freescale/Makefile b/arch/arm64/boot/dts/freescale/Makefile
index c4e790a268ae..505efc9ebd58 100644
--- a/arch/arm64/boot/dts/freescale/Makefile
+++ b/arch/arm64/boot/dts/freescale/Makefile
@@ -471,7 +471,10 @@ dtb-$(CONFIG_ARCH_MXC) += imx95-19x19-evk-sof.dtb
dtb-$(CONFIG_ARCH_MXC) += imx95-toradex-smarc-dev.dtb
dtb-$(CONFIG_ARCH_MXC) += imx95-tqma9596sa-mb-smarc-2.dtb
-imx95-15x15-evk-pcie0-ep-dtbs = imx95-15x15-evk.dtb imx-pcie0-ep.dtbo
+imx95-15x15-evk-pcie-dtbs = imx95-15x15-evk.dtb imx95-15x15-evk-pcie.dtbo
+dtb-$(CONFIG_ARCH_MXC) += imx95-15x15-evk-pcie.dtb
+
+imx95-15x15-evk-pcie0-ep-dtbs = imx95-15x15-evk-pcie.dtb imx-pcie0-ep.dtbo
dtb-$(CONFIG_ARCH_MXC) += imx95-15x15-evk-pcie0-ep.dtb
imx95-19x19-evk-pcie0-ep-dtbs += imx95-19x19-evk.dtb imx-pcie0-ep.dtbo
imx95-19x19-evk-pcie1-ep-dtbs += imx95-19x19-evk.dtb imx-pcie1-ep.dtbo
diff --git a/arch/arm64/boot/dts/freescale/imx95-15x15-evk-pcie.dtso b/arch/arm64/boot/dts/freescale/imx95-15x15-evk-pcie.dtso
new file mode 100644
index 000000000000..42384e6233f3
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/imx95-15x15-evk-pcie.dtso
@@ -0,0 +1,15 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright 2026 NXP
+ */
+
+/dts-v1/;
+/plugin/;
+
+&pcie0 {
+ status = "okay";
+};
+
+&usdhc3 {
+ status = "disabled";
+};
diff --git a/arch/arm64/boot/dts/freescale/imx95-15x15-evk.dts b/arch/arm64/boot/dts/freescale/imx95-15x15-evk.dts
index 7eb12e7d5014..afd89ce3cc5b 100644
--- a/arch/arm64/boot/dts/freescale/imx95-15x15-evk.dts
+++ b/arch/arm64/boot/dts/freescale/imx95-15x15-evk.dts
@@ -557,7 +557,7 @@ &pcie0 {
vpcie-supply = <®_m2_pwr>;
vpcie3v3aux-supply = <®_m2_pwr>;
supports-clkreq;
- status = "okay";
+ status = "disabled";
};
&pcie0_ep {
--
2.37.1
next reply other threads:[~2026-03-17 3:09 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-17 3:10 Sherry Sun [this message]
2026-03-18 11:41 ` [PATCH] arm64: dts: imx95-15x15-evk: Disable PCIe bus in the default dts Daniel Baluta
2026-03-19 1:54 ` Sherry Sun
2026-03-18 22:40 ` Frank Li
2026-03-19 1:58 ` Sherry Sun
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20260317031024.444157-1-sherry.sun@nxp.com \
--to=sherry.sun@nxp.com \
--cc=Frank.Li@nxp.com \
--cc=conor+dt@kernel.org \
--cc=devicetree@vger.kernel.org \
--cc=festevam@gmail.com \
--cc=hongxing.zhu@nxp.com \
--cc=imx@lists.linux.dev \
--cc=kernel@pengutronix.de \
--cc=krzk+dt@kernel.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=robh@kernel.org \
--cc=s.hauer@pengutronix.de \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox