soc: nxp: imxrt: clock imxrt1042 SOC at 528 MHz

iMXRT1042 SOC should be clocked at 528 MHz maximum. Correct the clock
setup to use the system PLL.

Fixes zephyrproject-rtos#70755

Signed-off-by: Daniel DeGrasse <daniel.degrasse@nxp.com>

Author: danieldegrasse

dts/arm/nxp/nxp_rt1040.dtsi

@@ -11,7 +11,7 @@
 };
 
 &sysclk {
-	clock-frequency = <500000000>;
+	clock-frequency = <528000000>;
 };
 
 &ccm {
@@ -20,10 +20,13 @@
 	};
 
 	arm-podf {
-		clock-div = <2>;
+		clock-div = <1>;
 	};
 };
 
+&gpt2 {
+	gptfreq = <33000000>;
+};
 
 / {
 	soc {

soc/nxp/imxrt/imxrt10xx/Kconfig

@@ -70,6 +70,7 @@ config SOC_MIMXRT1042
 	select CPU_HAS_FPU_DOUBLE_PRECISION
 	select CPU_HAS_ARM_MPU
 	select INIT_ARM_PLL
+	select INIT_SYS_PLL
 
 config SOC_MIMXRT1051
 	select HAS_MCUX_ENET

soc/nxp/imxrt/imxrt10xx/soc.c

@@ -186,8 +186,13 @@ static ALWAYS_INLINE void clock_init(void)
 	BUILD_ASSERT_PODF_IN_RANGE(ipg_podf, 1, 4);
 	CLOCK_SetDiv(kCLOCK_IpgDiv, DT_PROP(DT_CHILD(CCM_NODE, ipg_podf), clock_div) - 1);
 
+#ifdef CONFIG_SOC_MIMXRT1042
+	/* Set PRE_PERIPH_CLK to SYS_PLL */
+	CLOCK_SetMux(kCLOCK_PrePeriphMux, 0x0);
+#else
 	/* Set PRE_PERIPH_CLK to PLL1, 1200M */
 	CLOCK_SetMux(kCLOCK_PrePeriphMux, 0x3);
+#endif
 
 	/* Set PERIPH_CLK MUX to PRE_PERIPH_CLK */
 	CLOCK_SetMux(kCLOCK_PeriphMux, 0x0);