soc: nxp: imx93: fix system tick idle issue on m33

yongxu-wang15 · fabiobaltieri · commit 969ff6fddf50 · 2025-08-04T11:54:50.000+01:00
clear SLEEP_HOLD_EN bit to make sure m33 system tick
works fine in idle task

Signed-off-by: Yongxu Wang &lt;yongxu.wang@nxp.com&gt;
diff --git a/soc/nxp/imx/imx9/imx93/m33/soc.c b/soc/nxp/imx/imx9/imx93/m33/soc.c
@@ -17,5 +17,8 @@ void soc_early_init_hook(void)
 	GPIO2->PCNS = 0x0;
 	GPIO3->PCNS = 0x0;
 	GPIO4->PCNS = 0x0;
+
+	/* keep system tick work fine during idle task */
+	GPC_CTRL_CM33->CM_MISC &= ~GPC_CPU_CTRL_CM_MISC_SLEEP_HOLD_EN_MASK;
 }
 #endif

Original file line number	Diff line number	Diff line change
`@@ -17,5 +17,8 @@ void soc_early_init_hook(void)`
`17`	`17`	`GPIO2->PCNS = 0x0;`
`18`	`18`	`GPIO3->PCNS = 0x0;`
`19`	`19`	`GPIO4->PCNS = 0x0;`
	`20`	`+`
	`21`	`+ /* keep system tick work fine during idle task */`
	`22`	`+ GPC_CTRL_CM33->CM_MISC &= ~GPC_CPU_CTRL_CM_MISC_SLEEP_HOLD_EN_MASK;`
`20`	`23`	`}`
`21`	`24`	`#endif`