IMX95 failed to reparent can1

HenryHsu — Thu, 06 Aug 2026 03:09:16 GMT

I tried to enable can1

my device tree pin is follow imx95 evk, and disable &micfil

IMX95_PAD_PDM_CLK__AONMIX_TOP_CAN1_TX 0x39e

IMX95_PAD_PDM_BIT_STREAM0__AONMIX_TOP_CAN1_RX 0x39e

, but the following error occurred.

[ 9.968941] CAN device driver interface
[ 9.976800] scmi-pinctrl-imx scmi_dev.8: Error set config -13
[ 9.976814] scmi-pinctrl-imx scmi_dev.8: pin_config_set op failed for pin 121
[ 9.976893] clk: failed to reparent can1 to syspll1_pfd1_di: -1
[ 9.978973] Internal error: synchronous external abort: 0000000096000010 [#1] SMP
[ 9.978986] Modules linked in: flexcan(+) can_dev neoisp(+) at24 rpmsg_ctrl rpmsg_char pwm_fan enetc4_uio(O) fsl_ecat_enetc4 fsl_ecat_enetc_core moal(O) mlan(O) fuse
[ 9.979017] CPU: 5 UID: 0 PID: 357 Comm: (udev-worker) Tainted: G M O 6.18.2-rt3-1.0.0-1.0.0 #1 PREEMPT_RT
[ 9.979026] Tainted: [M]=MACHINE_CHECK, [O]=OOT_MODULE
[ 9.979028] Hardware name: Axiomtek i.MX95 scm136 board (DT)
[ 9.979031] pstate: 60400009 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[ 9.979035] pc : flexcan_read_le+0x0/0x20 [flexcan]
[ 9.979060] lr : flexcan_probe+0x454/0x834 [flexcan]
[ 9.979067] sp : ffff800086133820
[ 9.979069] x29: ffff800086133850 x28: ffff8000862b0000 x27: ffff000085a182a0

Does anyone know how to fix this?

Re: IMX95 failed to reparent can1

Zhiming_Liu — Thu, 06 Aug 2026 06:00:03 GMT

Hi @HenryHsu

Here is my previous test on i.MX95 EVK, please check your dts with below modifications.

dts modification:

Zhiming_Liu_2-1785995739657.png

diff --git a/arch/arm64/boot/dts/freescale/imx95-19x19-evk.dts b/arch/arm64/boot/dts/freescale/imx95-19x19-evk.dts
index ab7bd4fdaadf..5eb3011f0894 100644
--- a/arch/arm64/boot/dts/freescale/imx95-19x19-evk.dts
+++ b/arch/arm64/boot/dts/freescale/imx95-19x19-evk.dts
@@ -380,7 +380,7 @@ &flexcan1 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_flexcan1>;
 	xceiver-supply = <&reg_can1_stby>;
-	status = "disabled";
+	status = "okay";
 };
 
 &flexcan2 {
@@ -623,23 +623,23 @@ spidev0: spi@0 {
 	};
 };
 
-&micfil {
-	#sound-dai-cells = <0>;
-	pinctrl-names = "default", "sleep";
-	pinctrl-0 = <&pinctrl_pdm>;
-	pinctrl-1 = <&pinctrl_pdm_sleep>;
-	assigned-clocks = <&scmi_clk IMX95_CLK_AUDIOPLL1_VCO>,
-			  <&scmi_clk IMX95_CLK_AUDIOPLL2_VCO>,
-			  <&scmi_clk IMX95_CLK_AUDIOPLL1>,
-			  <&scmi_clk IMX95_CLK_AUDIOPLL2>,
-			  <&scmi_clk IMX95_CLK_PDM>;
-	assigned-clock-parents = <0>, <0>, <0>, <0>,
-				 <&scmi_clk IMX95_CLK_AUDIOPLL1>;
-	assigned-clock-rates = <3932160000>,
-			       <3612672000>, <393216000>,
-			       <361267200>, <49152000>;
-	status = "okay";
-};
+// &micfil {
+// 	#sound-dai-cells = <0>;
+// 	pinctrl-names = "default", "sleep";
+// 	pinctrl-0 = <&pinctrl_pdm>;
+// 	pinctrl-1 = <&pinctrl_pdm_sleep>;
+// 	assigned-clocks = <&scmi_clk IMX95_CLK_AUDIOPLL1_VCO>,
+// 			  <&scmi_clk IMX95_CLK_AUDIOPLL2_VCO>,
+// 			  <&scmi_clk IMX95_CLK_AUDIOPLL1>,
+// 			  <&scmi_clk IMX95_CLK_AUDIOPLL2>,
+// 			  <&scmi_clk IMX95_CLK_PDM>;
+// 	assigned-clock-parents = <0>, <0>, <0>, <0>,
+// 				 <&scmi_clk IMX95_CLK_AUDIOPLL1>;
+// 	assigned-clock-rates = <3932160000>,
+// 			       <3612672000>, <393216000>,
+// 			       <361267200>, <49152000>;
+// 	status = "okay";
+// };
 
 &mu7 {
 	status = "okay";
@@ -960,19 +960,19 @@ IMX95_PAD_GPIO_IO35__HSIOMIX_TOP_PCIE2_CLKREQ_B		0x4000031e
 		>;
 	};
 
-	pinctrl_pdm: pdmgrp {
-		fsl,pins = <
-			IMX95_PAD_PDM_CLK__AONMIX_TOP_PDM_CLK				0x31e
-			IMX95_PAD_PDM_BIT_STREAM0__AONMIX_TOP_PDM_BIT_STREAM_BIT0	0x31e
-		>;
-	};
+	// pinctrl_pdm: pdmgrp {
+	// 	fsl,pins = <
+	// 		IMX95_PAD_PDM_CLK__AONMIX_TOP_PDM_CLK				0x31e
+	// 		IMX95_PAD_PDM_BIT_STREAM0__AONMIX_TOP_PDM_BIT_STREAM_BIT0	0x31e
+	// 	>;
+	// };
 
-	pinctrl_pdm_sleep: pdmsleepgrp {
-		fsl,pins = <
-			IMX95_PAD_PDM_CLK__AONMIX_TOP_GPIO1_IO_BIT8			0x51e
-			IMX95_PAD_PDM_BIT_STREAM0__AONMIX_TOP_GPIO1_IO_BIT9		0x51e
-		>;
-	};
+	// pinctrl_pdm_sleep: pdmsleepgrp {
+	// 	fsl,pins = <
+	// 		IMX95_PAD_PDM_CLK__AONMIX_TOP_GPIO1_IO_BIT8			0x51e
+	// 		IMX95_PAD_PDM_BIT_STREAM0__AONMIX_TOP_GPIO1_IO_BIT9		0x51e
+	// 	>;
+	// };
 
 	pinctrl_ptn5110: ptn5110grp {
 		fsl,pins = <

system manager modification:

diff --git a/configs/mx95evk.cfg b/configs/mx95evk.cfg
index 9250d02..6722097 100755
--- a/configs/mx95evk.cfg
+++ b/configs/mx95evk.cfg
@@ -389,7 +389,7 @@ SYS                       ALL
 # Resources
 
 M7P                 OWNER  # CPUs must be first
-CAN_FD1             OWNER
+// CAN_FD1             OWNER
 FSB                 READONLY
 IRQSTEER_M7         OWNER
 LPIT1               OWNER
@@ -612,6 +612,7 @@ CAMERA5             OWNER
 CAMERA6             OWNER
 CAMERA7             OWNER
 CAMERA8             OWNER
+CAN_FD1             OWNER
 CAN_FD2             OWNER
 CAN_FD3             OWNER
 CAN_FD4             OWNER

Result:

Zhiming_Liu_3-1785995783165.png

Re: IMX95 failed to reparent can1

HenryHsu — Thu, 06 Aug 2026 06:37:47 GMT

Hi,Zhiming_Liu

Thank you for the reply.

you are right ,I need to change system manager config.

topic IMX95 failed to reparent can1 in i.MX Processors

IMX95 failed to reparent can1

Re: IMX95 failed to reparent can1

Re: IMX95 failed to reparent can1