diff --git a/mcux/README b/mcux/README
index f6aba901f0..8dca1b104f 100644
--- a/mcux/README
+++ b/mcux/README
@@ -244,6 +244,13 @@ Patch List:
    - PR: https://github.com/zephyrproject-rtos/hal_nxp/pull/597
    - This patch is in hal_nxp but is not in mcux-sdk-ng 25.09.00.
 
+  - hal/nxp: s32K344: flash_c40: add C40 features, IP aliases
+   - Commit: https://github.com/zephyrproject-rtos/hal_nxp/pull/618/commits/64395f565184964bbf21e247df6ca88dc4d7cf83
+   - This patch is in hal_nxp but is not in mcux-sdk-ng 25.09.00.
+     This patch was merged after PR https://github.com/zephyrproject-rtos/hal_nxp/pull/618/commits was created.
+     Also since the additions about C40 Flash geometry in S32K344_features.h and defining local Flash Aliases in
+     S32K344_glue_mcux.h, are for S32K344 SoC so they are not present in the mcusdk-core repo.
+
 Note:
    - The SAI driver should not be updated during hal_nxp updates, since the latest SAI driver will cause runtime issues
      on MCXN947 for Zephyr I2S-related test cases.
diff --git a/mcux/mcux-sdk-ng/drivers/flash_c40/fsl_c40_flash.c b/mcux/mcux-sdk-ng/drivers/flash_c40/fsl_c40_flash.c
index 31395a57cf..133c19e8f9 100644
--- a/mcux/mcux-sdk-ng/drivers/flash_c40/fsl_c40_flash.c
+++ b/mcux/mcux-sdk-ng/drivers/flash_c40/fsl_c40_flash.c
@@ -818,7 +818,7 @@ status_t FLASH_Erase(flash_config_t *config, uint32_t start, uint32_t lengthInBy
 
 status_t FLASH_Program(flash_config_t *config, uint32_t start, uint32_t *src, uint32_t lengthInBytes)
 {
-    status_t ret;
+    status_t ret = kStatus_FLASH_Success;
     size_t chunkSize;
     size_t sizeLeft = lengthInBytes;
     uint8_t *src8 = (uint8_t *) src;
diff --git a/s32/mcux/devices/S32K344/S32K344_features.h b/s32/mcux/devices/S32K344/S32K344_features.h
index 6b2dd951df..92f64dd253 100644
--- a/s32/mcux/devices/S32K344/S32K344_features.h
+++ b/s32/mcux/devices/S32K344/S32K344_features.h
@@ -236,4 +236,13 @@
 /* @brief Memory map has offset between subsystems. */
 #define FSL_FEATURE_MEMORY_HAS_ADDRESS_OFFSET (1)
 
+/* FLASH Module features */
+
+/* @brief Code flash (PFLASH) implemented as 1 MiB blocks */
+#define FSL_FEATURE_FLASH_C40_BLOCK_SIZE_CODE     (1024u * 1024u)
+/* @brief Code flash (PFLASH) has 4 blocks of 1 MiB each total size = 4 MiB */
+#define FSL_FEATURE_FLASH_C40_BLOCK_COUNT_CODE    (4u)
+/* @brief Data flash (DFLASH) window: 256 KiB */
+#define FSL_FEATURE_FLASH_C40_BLOCK_SIZE_DATA     (256u * 1024u)
+
 #endif /* _S32K344_FEATURES_H_ */
diff --git a/s32/mcux/devices/S32K344/S32K344_glue_mcux.h b/s32/mcux/devices/S32K344/S32K344_glue_mcux.h
index fe58a8084c..ddb1675386 100644
--- a/s32/mcux/devices/S32K344/S32K344_glue_mcux.h
+++ b/s32/mcux/devices/S32K344/S32K344_glue_mcux.h
@@ -208,4 +208,24 @@
 #define FLEXIO_BASE_PTRS                        IP_FLEXIO_BASE_PTRS
 /** Interrupt vectors for the FLEXIO peripheral type */
 #define FLEXIO_IRQS                              { FLEXIO_IRQn }
+
+/* FLASH - Peripheral instance base addresses */
+/** Peripheral FLASH base address */
+#define FLASH_BASE                               IP_FLASH_BASE
+/** Peripheral FLASH base pointer */
+#define FLASH                                    IP_FLASH
+/** Array initializer of FLASH peripheral base addresses */
+#define FLASH_BASE_ADDRS                         IP_FLASH_BASE_ADDRS
+/** Array initializer of FLASH peripheral base pointers */
+#define FLASH_BASE_PTRS                          IP_FLASH_BASE_PTRS
+
+/* PFLASH - Peripheral instance base addresses */
+/** Peripheral PFLASH base address */
+#define PFLASH_BASE                              IP_PFLASH_BASE
+/** Peripheral PFLASH base pointer */
+#define PFLASH                                   IP_PFLASH
+/** Array initializer of PFLASH peripheral base addresses */
+#define PFLASH_BASE_ADDRS                        IP_PFLASH_BASE_ADDRS
+/** Array initializer of PFLASH peripheral base pointers */
+#define PFLASH_BASE_PTRS                         IP_PFLASH_BASE_PTRS
 #endif  /* _S32K344_GLUE_MCUX_H_ */