Numerous fixes for basic STM32 SDIO DMA access

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@2279 42af7a65-404d-4744-a932-0658087f49c3

2 files changed, 16 insertions, 0 deletions

diff --git a/nuttx/arch/arm/src/common/up_initialize.c b/nuttx/arch/arm/src/common/up_initialize.c
index 995a319e6..d12a23de1 100644
--- a/nuttx/arch/arm/src/common/up_initialize.c
+++ b/nuttx/arch/arm/src/common/up_initialize.c
@@ -124,6 +124,19 @@ void up_initialize(void)
 
   up_irqinitialize();
 
+  /* Initialize the DMA subsystem if the weak function stm32_dmainitialize has been
+   * brought into the build
+   */
+
+#ifdef CONFIG_ARCH_DMA
+#ifdef CONFIG_HAVE_WEAKFUNCTIONS
+  if (up_dmainitialize)
+#endif
+    {
+      up_dmainitialize();
+    }
+#endif
+
   /* Initialize the system timer interrupt */
 
 #if !defined(CONFIG_SUPPRESS_INTERRUPTS) && !defined(CONFIG_SUPPRESS_TIMER_INTS)
diff --git a/nuttx/arch/arm/src/common/up_internal.h b/nuttx/arch/arm/src/common/up_internal.h
index ee5864794..9abf4a0b6 100644
--- a/nuttx/arch/arm/src/common/up_internal.h
+++ b/nuttx/arch/arm/src/common/up_internal.h
@@ -156,6 +156,9 @@ extern void up_boot(void);
 extern void up_copystate(uint32 *dest, uint32 *src);
 extern void up_decodeirq(uint32 *regs);
 extern void up_irqinitialize(void);
+#ifdef CONFIG_ARCH_DMA
+extern void weak_function up_dmainitialize(void);
+#endif
 extern int  up_saveusercontext(uint32 *saveregs);
 extern void up_fullcontextrestore(uint32 *restoreregs) __attribute__ ((noreturn));
 extern void up_switchcontext(uint32 *saveregs, uint32 *restoreregs);