# HG changeset patch
# User msalter
# Date 1039617593 0
# Node ID a6cede66ea36db3179aac50e41d605e897df211f
# Parent  f615c6e30a2516158207c6118c69a9e5cd9751e6
ARM hal_io tweak

diff --git a/packages/hal/arm/arch/current/ChangeLog b/packages/hal/arm/arch/current/ChangeLog
--- a/packages/hal/arm/arch/current/ChangeLog
+++ b/packages/hal/arm/arch/current/ChangeLog
@@ -1,3 +1,8 @@
+2002-12-11  Mark Salter  <msalter@redhat.com>
+
+	* include/hal_io.h: Allow variant or platform HALs to override
+	default IO macros.
+
 2002-11-12  Mark Salter  <msalter@redhat.com>
 
 	* src/arm_stub.c (target_ins): Account for PC prefetch when PC is
diff --git a/packages/hal/arm/arch/current/include/hal_io.h b/packages/hal/arm/arch/current/include/hal_io.h
--- a/packages/hal/arm/arch/current/include/hal_io.h
+++ b/packages/hal/arm/arch/current/include/hal_io.h
@@ -79,6 +79,9 @@
 
 typedef volatile CYG_ADDRWORD HAL_IO_REGISTER;
 
+//-----------------------------------------------------------------------------
+// HAL IO macros.
+#ifndef HAL_IO_MACROS_DEFINED
 
 //-----------------------------------------------------------------------------
 // BYTE Register access.
@@ -288,6 +291,11 @@ typedef volatile CYG_ADDRWORD HAL_IO_REG
         ((volatile CYG_WORD32 *)(_register_))[_i_] = (_buf_)[_i_];      \
     CYG_MACRO_END
 
+
+#define HAL_IO_MACROS_DEFINED
+
+#endif // !HAL_IO_MACROS_DEFINED
+
 // Enforce a flow "barrier" to prevent optimizing compiler from reordering 
 // operations.
 #define HAL_IO_BARRIER()