diff --git a/build/libraries/mi/common/mi_dma_patch.c b/build/libraries/mi/common/mi_dma_patch.c
new file mode 100644
index 0000000..b5827ab
--- /dev/null
+++ b/build/libraries/mi/common/mi_dma_patch.c
@@ -0,0 +1,190 @@
+
+#include <nitro.h>
+#include <mi_dma.h>
+
+
+#define MI_CNT_RECV16(size)        ( MI_DMA_IMM16ENABLE | MI_DMA_SRC_FIX | MI_DMA_DEST_INC | ((size)/2) )
+#define MI_CNT_RECV32(size)        ( MI_DMA_IMM32ENABLE | MI_DMA_SRC_FIX | MI_DMA_DEST_INC | ((size)/4) )
+#define MI_CNT_RECV16_IF(size)     ( MI_CNT_RECV16((size)) | MI_DMA_IF_ENABLE )
+#define MI_CNT_RECV32_IF(size)     ( MI_CNT_RECV32((size)) | MI_DMA_IF_ENABLE )
+
+
+/*---------------------------------------------------------------------------*
+  Name:         MI_DmaRecv32
+
+  Description:  send u32 data to fixed address
+                sync 32bit version
+
+  Arguments:    dmaNo : DMA channel No.
+                src   : data stream to send
+                dest  : destination address. not incremented
+                size  : size (byte)
+
+  Returns:      None
+ *---------------------------------------------------------------------------*/
+void MI_DmaRecv32(u32 dmaNo, const void *src, volatile void *dest, u32 size)
+{
+    vu32   *dmaCntp;
+
+    MIi_ASSERT_DMANO(dmaNo);
+    MIi_ASSERT_MUL4(size);
+    MIi_ASSERT_SIZE(dmaNo, size / 4);
+    MIi_ASSERT_SRC_ALIGN4(src);
+    MIi_ASSERT_DEST_ALIGN4(dest);
+    MIi_WARNING_ADDRINTCM(src, size);
+    MIi_WARNING_ADDRINTCM(dest, size);
+
+    //---- check DMA0 source address
+    MIi_CheckDma0SourceAddress(dmaNo, (u32)src, size, MI_DMA_SRC_FIX);
+
+    if (size == 0)
+    {
+        return;
+    }
+
+    MIi_Wait_BeforeDMA(dmaCntp, dmaNo);
+    MIi_DmaSetParams_wait(dmaNo, (u32)src, (u32)dest, MI_CNT_RECV32(size));
+    MIi_Wait_AfterDMA(dmaCntp);
+}
+
+
+/*---------------------------------------------------------------------------*
+  Name:         MI_DmaRecv16
+
+  Description:  send u16 data to fixed address
+                sync 16bit version
+
+  Arguments:    dmaNo : DMA channel No.
+                src   : data stream to send
+                dest  : destination address. not incremented
+                size  : size (byte)
+
+  Returns:      None
+ *---------------------------------------------------------------------------*/
+void MI_DmaRecv16(u32 dmaNo, const void *src, volatile void *dest, u32 size)
+{
+    vu32   *dmaCntp;
+
+    MIi_ASSERT_DMANO(dmaNo);
+    MIi_ASSERT_MUL2(size);
+    MIi_ASSERT_SIZE(dmaNo, size / 2);
+    MIi_ASSERT_SRC_ALIGN2(src);
+    MIi_ASSERT_DEST_ALIGN2(dest);
+    MIi_WARNING_ADDRINTCM(src, size);
+    MIi_WARNING_ADDRINTCM(dest, size);
+
+    if (size == 0)
+    {
+        return;
+    }
+
+    //---- check DMA0 source address
+    MIi_CheckDma0SourceAddress(dmaNo, (u32)src, size, MI_DMA_SRC_FIX);
+
+    MIi_Wait_BeforeDMA(dmaCntp, dmaNo);
+    MIi_DmaSetParams_wait(dmaNo, (u32)src, (u32)dest, MI_CNT_RECV16(size));
+    MIi_Wait_AfterDMA(dmaCntp);
+}
+
+
+/*---------------------------------------------------------------------------*
+  Name:         MI_DmaRecv32Async
+
+  Description:  send u32 data to fixed address
+                async 32bit version
+
+  Arguments:    dmaNo : DMA channel No.
+                src   : data stream to send
+                dest  : destination address. not incremented
+                size  : size (byte)
+                callback : callback function called finish DMA
+                arg      : callback argument
+
+  Returns:      None
+ *---------------------------------------------------------------------------*/
+void MI_DmaRecv32Async(u32 dmaNo, const void *src, volatile void *dest, u32 size,
+                       MIDmaCallback callback, void *arg)
+{
+    MIi_ASSERT_DMANO(dmaNo);
+    MIi_ASSERT_MUL4(size);
+    MIi_ASSERT_SIZE(dmaNo, size / 4);
+    MIi_ASSERT_SRC_ALIGN4(src);
+    MIi_ASSERT_DEST_ALIGN4(dest);
+    MIi_WARNING_ADDRINTCM(src, size);
+    MIi_WARNING_ADDRINTCM(dest, size);
+
+    //---- check DMA0 source address
+    MIi_CheckDma0SourceAddress(dmaNo, (u32)src, size, MI_DMA_SRC_FIX);
+
+    if (size == 0)
+    {
+        MIi_CallCallback(callback, arg);
+    }
+    else
+    {
+        MI_WaitDma(dmaNo);
+
+        if (callback)
+        {
+            OSi_EnterDmaCallback(dmaNo, callback, arg);
+            MIi_DmaSetParams(dmaNo, (u32)src, (u32)dest, MI_CNT_RECV32_IF(size));
+        }
+        else
+        {
+            MIi_DmaSetParams(dmaNo, (u32)src, (u32)dest, MI_CNT_RECV32(size));
+        }
+    }
+}
+
+
+/*---------------------------------------------------------------------------*
+  Name:         MI_DmaRecv16Async
+
+  Description:  send u16 data to fixed address
+                async 16bit version
+
+  Arguments:    dmaNo : DMA channel No.
+                src   : data stream to send
+                dest  : destination address. not incremented
+                size  : size (byte)
+                callback : callback function called finish DMA
+                arg      : callback argument
+
+  Returns:      None
+ *---------------------------------------------------------------------------*/
+void MI_DmaRecv16Async(u32 dmaNo, const void *src, volatile void *dest, u32 size,
+                       MIDmaCallback callback, void *arg)
+{
+    MIi_ASSERT_DMANO(dmaNo);
+    MIi_ASSERT_MUL2(size);
+    MIi_ASSERT_SIZE(dmaNo, size / 2);
+    MIi_ASSERT_SRC_ALIGN2(src);
+    MIi_ASSERT_DEST_ALIGN2(dest);
+    MIi_WARNING_ADDRINTCM(src, size);
+    MIi_WARNING_ADDRINTCM(dest, size);
+
+    //---- check DMA0 source address
+    MIi_CheckDma0SourceAddress(dmaNo, (u32)src, size, MI_DMA_SRC_FIX);
+
+    if (size == 0)
+    {
+        MIi_CallCallback(callback, arg);
+    }
+    else
+    {
+        MI_WaitDma(dmaNo);
+
+        if (callback)
+        {
+            OSi_EnterDmaCallback(dmaNo, callback, arg);
+            MIi_DmaSetParams(dmaNo, (u32)src, (u32)dest, MI_CNT_RECV16_IF(size));
+        }
+        else
+        {
+            MIi_DmaSetParams(dmaNo, (u32)src, (u32)dest, MI_CNT_RECV16(size));
+        }
+    }
+}
+
+
+