1 files changed, 94 insertions, 0 deletions
diff --git a/bsps/arm/imxrt/nxp/devices/MIMXRT1052/drivers/fsl_flexram.c b/bsps/arm/imxrt/nxp/devices/MIMXRT1052/drivers/fsl_flexram.c
new file mode 100644
index 0000000000..898c0d897c
--- /dev/null
+++ b/bsps/arm/imxrt/nxp/devices/MIMXRT1052/drivers/fsl_flexram.c
@@ -0,0 +1,94 @@
+/*
+ * Copyright 2017-2019 NXP
+ * All rights reserved.
+ *
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include "fsl_flexram.h"
+
+/*******************************************************************************
+ * Definitions
+ ******************************************************************************/
+
+/* Component ID definition, used by tools. */
+#ifndef FSL_COMPONENT_ID
+#define FSL_COMPONENT_ID "platform.drivers.flexram"
+#endif
+
+/*******************************************************************************
+ * Prototypes
+ ******************************************************************************/
+/*!
+ * @brief Gets the instance from the base address to be used to gate or ungate the module clock
+ *
+ * @param base FLEXRAM base address
+ *
+ * @return The FLEXRAM instance
+ */
+static uint32_t FLEXRAM_GetInstance(FLEXRAM_Type *base);
+
+/*******************************************************************************
+ * Variables
+ ******************************************************************************/
+/*! @brief Pointers to FLEXRAM bases for each instance. */
+static FLEXRAM_Type *const s_flexramBases[] = FLEXRAM_BASE_PTRS;
+
+#if !(defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL)
+/*! @brief Pointers to FLEXRAM clocks for each instance. */
+static const clock_ip_name_t s_flexramClocks[] = FLEXRAM_CLOCKS;
+#endif /* FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL */
+
+/*******************************************************************************
+ * Code
+ ******************************************************************************/
+static uint32_t FLEXRAM_GetInstance(FLEXRAM_Type *base)
+{
+    uint32_t instance;
+
+    /* Find the instance index from base address mappings. */
+    for (instance = 0; instance < ARRAY_SIZE(s_flexramBases); instance++)
+    {
+        if (s_flexramBases[instance] == base)
+        {
+            break;
+        }
+    }
+
+    assert(instance < ARRAY_SIZE(s_flexramBases));
+
+    return instance;
+}
+
+/*!
+ * brief FLEXRAM module initialization function.
+ *
+ * param base FLEXRAM base address.
+ */
+void FLEXRAM_Init(FLEXRAM_Type *base)
+{
+#if !(defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL)
+    /* Ungate ENET clock. */
+    CLOCK_EnableClock(s_flexramClocks[FLEXRAM_GetInstance(base)]);
+#endif /* FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL */
+
+    /* enable all the interrupt status */
+    base->INT_STAT_EN |= (uint32_t)kFLEXRAM_InterruptStatusAll;
+    /* clear all the interrupt status */
+    base->INT_STATUS |= (uint32_t)kFLEXRAM_InterruptStatusAll;
+    /* disable all the interrpt */
+    base->INT_SIG_EN = 0U;
+}
+
+/*!
+ * brief Deinitializes the FLEXRAM.
+ *
+ */
+void FLEXRAN_Deinit(FLEXRAM_Type *base)
+{
+#if !(defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL)
+    /* Ungate ENET clock. */
+    CLOCK_DisableClock(s_flexramClocks[FLEXRAM_GetInstance(base)]);
+#endif /* FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL */
+}