cortexm system control register definitions

[Simon Kallweit]

really small patch to add system control register definitions (used for 
sleep mode)

this time with the patch attached, sorry about the previous mail!
diff --git a/packages/hal/cortexm/arch/current/ChangeLog b/packages/hal/cortexm/arch/current/ChangeLog
index b3f1968..d11862d 100644
--- a/packages/hal/cortexm/arch/current/ChangeLog
+++ b/packages/hal/cortexm/arch/current/ChangeLog
@@ -1,3 +1,7 @@
+2009-02-27  Simon Kallweit  <simon.kallw...@intefo.ch>
+
+	* include/hal_io.h: Added system control register definitions 
+
 2009-02-13  Nick Garnett  <ni...@ecoscentric.com>
 
 	* include/hal_arch.h: Add include for var_arch.h.
diff --git a/packages/hal/cortexm/arch/current/include/hal_io.h b/packages/hal/cortexm/arch/current/include/hal_io.h
index 559b99e..02259f1 100644
--- a/packages/hal/cortexm/arch/current/include/hal_io.h
+++ b/packages/hal/cortexm/arch/current/include/hal_io.h
@@ -190,6 +190,12 @@
 #define CYGARC_REG_NVIC_AIRCR_VECTCLRACTIVE     BIT_(1)
 #define CYGARC_REG_NVIC_AIRCR_VECTRESET         BIT_(0)
 
+// SCR
+
+#define CYGARC_REG_NVIC_SCR_SLEEPONEXIT         BIT_(1)
+#define CYGARC_REG_NVIC_SCR_DEEPSLEEP           BIT_(2)
+#define CYGARC_REG_NVIC_SCR_SEVONPEND           BIT_(4)
+
 // SHCSR
 
 #define CYGARC_REG_NVIC_SHCSR_USGFAULTENA       BIT_(18)