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diff --git a/lib/chibios-contrib/ext/mcux-sdk/devices/MIMXRT1052/drivers/fsl_flexram_allocate.h b/lib/chibios-contrib/ext/mcux-sdk/devices/MIMXRT1052/drivers/fsl_flexram_allocate.h
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index 000000000..e2310683a
--- /dev/null
+++ b/lib/chibios-contrib/ext/mcux-sdk/devices/MIMXRT1052/drivers/fsl_flexram_allocate.h
@@ -0,0 +1,99 @@
+/*
+ * Copyright 2019-2020 NXP
+ * All rights reserved.
+ *
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef _FSL_FLEXRAM_ALLOCATE_H_
+#define _FSL_FLEXRAM_ALLOCATE_H_
+
+#include "fsl_common.h"
+
+/*!
+ * @addtogroup flexram
+ * @{
+ */
+
+/******************************************************************************
+ * Definitions.
+ *****************************************************************************/
+
+/*! @name Driver version */
+/*@{*/
+/*! @brief SOC_FLEXRAM_ALLOCATE driver version 2.0.1. */
+#define FSL_SOC_FLEXRAM_ALLOCATE_DRIVER_VERSION (MAKE_VERSION(2, 0, 1))
+/*@}*/
+
+/*! @brief FLEXRAM bank type */
+enum
+{
+    kFLEXRAM_BankNotUsed = 0U, /*!< bank is not used */
+    kFLEXRAM_BankOCRAM   = 1U, /*!< bank is OCRAM */
+    kFLEXRAM_BankDTCM    = 2U, /*!< bank is DTCM */
+    kFLEXRAM_BankITCM    = 3U, /*!< bank is ITCM */
+};
+
+/*! @brief FLEXRAM bank allocate source */
+typedef enum _flexram_bank_allocate_src
+{
+    kFLEXRAM_BankAllocateThroughHardwareFuse = 0U, /*!< allocate ram through hardware fuse value */
+    kFLEXRAM_BankAllocateThroughBankCfg      = 1U, /*!< allocate ram through FLEXRAM_BANK_CFG */
+} flexram_bank_allocate_src_t;
+
+/*! @brief FLEXRAM allocate ocram, itcm, dtcm size */
+typedef struct _flexram_allocate_ram
+{
+    const uint8_t ocramBankNum; /*!< ocram banknumber which the SOC support */
+    const uint8_t dtcmBankNum;  /*!< dtcm bank number to allocate, the number should be power of 2 */
+    const uint8_t itcmBankNum;  /*!< itcm bank number to allocate, the number should be power of 2 */
+} flexram_allocate_ram_t;
+
+/*******************************************************************************
+ * APIs
+ ******************************************************************************/
+
+#if defined(__cplusplus)
+extern "C" {
+#endif
+
+/*!
+ * @brief FLEXRAM allocate on-chip ram for OCRAM,ITCM,DTCM
+ * This function is independent of FLEXRAM_Init, it can be called directly if ram re-allocate
+ * is needed.
+ * @param config allocate configuration.
+ * @retval kStatus_InvalidArgument the argument is invalid
+ *                 kStatus_Success allocate success
+ */
+status_t FLEXRAM_AllocateRam(flexram_allocate_ram_t *config);
+
+/*!
+ * @brief FLEXRAM set allocate on-chip ram source
+ * @param src bank config source select value.
+ */
+static inline void FLEXRAM_SetAllocateRamSrc(flexram_bank_allocate_src_t src)
+{
+    IOMUXC_GPR->GPR16 &= ~IOMUXC_GPR_GPR16_FLEXRAM_BANK_CFG_SEL_MASK;
+    IOMUXC_GPR->GPR16 |= IOMUXC_GPR_GPR16_FLEXRAM_BANK_CFG_SEL(src);
+}
+
+/*!
+ * @brief FLEXRAM configure TCM size
+ * This function  is used to set the TCM to the target size. If a odd bank number is used,
+ * a new banknumber will be used which is bigger than target value, application can set tcm
+ * size to the biggest bank number always, then boundary access error can be captured by flexram only.
+ * When access to the TCM memory boundary ,hardfault will raised by core.
+ * @param itcmBankNum itcm bank number to allocate
+ * @param dtcmBankNum dtcm bank number to allocate
+ *
+ */
+void FLEXRAM_SetTCMSize(uint8_t itcmBankNum, uint8_t dtcmBankNum);
+
+#if defined(__cplusplus)
+}
+#endif
+
+/*! @}*/
+
+#endif