First cut at DMA code

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@2142 42af7a65-404d-4744-a932-0658087f49c3

configs/stm3210e-eval/src/up_boot.c

@@ -72,6 +72,15 @@
 
 void stm32_boardinitialize(void)
 {
+  /* Initialize the DMA subsystem if the weak function stm32_dmainitialize has been
+   * brought into the build
+   */
+
+  if (stm32_dmainitialize)
+    {
+      stm32_dmainitialize();
+    }
+
   /* Configure SPI chip selects if 1) SPI is not disabled, and 2) the weak function
    * stm32_spiinitialize() has been brought into the link.
    */