diff options
| author | Sherry Sun <sherry.sun@nxp.com> | 2026-05-07 14:53:29 +0800 |
|---|---|---|
| committer | Frank Li <Frank.Li@nxp.com> | 2026-05-19 14:14:10 -0400 |
| commit | bb97f6f67cc9c7d82aaee7eee9b9c0273050264e (patch) | |
| tree | 8e147b9112526615c3be7a7f00d3aceddb6c0eb5 | |
| parent | 0549cdb08a846babf44ea97a03d866dbcfc17873 (diff) | |
arm64: dts: imx95-15x15-evk: Disable PCIe bus in the default dts
Disable the PCIe bus in the default device tree to avoid shared
regulator conflicts between SDIO and PCIe buses. The non-deterministic
probe order between these two buses can break the PCIe initialization
sequence, causing PCIe devices to fail detection intermittently.
On i.MX95-15x15 EVK board, the M.2 connector is physically wired to both
USDHC3 and PCIe0, however the out-of-box module is SDIO IW612 WiFi, so
enable SDIO WiFi in the default imx95-15x15-evk.dts.
Add 'm2_usdhc' label to USDHC3 to support device tree overlay for PCIe
modules. Users who need PCIe can use imx95-15x15-evk-pcie.dtb (added in
a follow-up patch) which applies an overlay to enable PCIe and disable
USDHC3.
Signed-off-by: Sherry Sun <sherry.sun@nxp.com>
Signed-off-by: Frank Li <Frank.Li@nxp.com>
| -rw-r--r-- | arch/arm64/boot/dts/freescale/imx95-15x15-evk.dts | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/arm64/boot/dts/freescale/imx95-15x15-evk.dts b/arch/arm64/boot/dts/freescale/imx95-15x15-evk.dts index 7eb12e7d5014..e4649d7f9122 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 @@ vpcie-supply = <®_m2_pwr>; vpcie3v3aux-supply = <®_m2_pwr>; supports-clkreq; - status = "okay"; + status = "disabled"; }; &pcie0_ep { @@ -1137,7 +1137,7 @@ status = "okay"; }; -&usdhc3 { +m2_usdhc: &usdhc3 { bus-width = <4>; keep-power-in-suspend; mmc-pwrseq = <&usdhc3_pwrseq>; |