soc: nxp: imx93: m33 early init for GPIO

M33 early init for GPIO for secure access configuration, so that driver can operate pins. Signed-off-by: Yangbo Lu <[email protected]> Signed-off-by: Chunlei Xu <[email protected]>
YoeDistro · Jan 15, 2025 · 314686e · 314686e
1 parent 66dceba
commit 314686e
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diff --git a/soc/nxp/imx/imx9/imx93/CMakeLists.txt b/soc/nxp/imx/imx9/imx93/CMakeLists.txt
@@ -10,5 +10,6 @@ if(CONFIG_SOC_MIMX9352_A55)
 elseif(CONFIG_SOC_MIMX9352_M33)
   zephyr_include_directories(.)
   zephyr_include_directories(m33)
+  zephyr_sources(m33/soc.c)
   set(SOC_LINKER_SCRIPT ${ZEPHYR_BASE}/include/zephyr/arch/arm/cortex_m/scripts/linker.ld CACHE INTERNAL "")
 endif()
diff --git a/soc/nxp/imx/imx9/imx93/Kconfig b/soc/nxp/imx/imx9/imx93/Kconfig
@@ -21,6 +21,7 @@ config SOC_MIMX9352_M33
 	select HAS_MCUX
 	select HAS_MCUX_IOMUXC if PINCTRL
 	select HAS_MCUX_CACHE
+	select SOC_EARLY_INIT_HOOK
 
 config MCUX_CORE_SUFFIX
 	default "_ca55" if SOC_MIMX9352_A55

diff --git a/soc/nxp/imx/imx9/imx93/m33/soc.c b/soc/nxp/imx/imx9/imx93/m33/soc.c
@@ -0,0 +1,21 @@
+/*
+ * Copyright 2025 NXP
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <zephyr/kernel.h>
+#include <zephyr/device.h>
+#include <zephyr/init.h>
+#include <soc.h>
+
+#ifdef CONFIG_SOC_EARLY_INIT_HOOK
+void soc_early_init_hook(void)
+{
+	/* Configure secure access to pin registers */
+	GPIO1->PCNS = 0x0;
+	GPIO2->PCNS = 0x0;
+	GPIO3->PCNS = 0x0;
+	GPIO4->PCNS = 0x0;
+}
+#endif