--- a/packages/hal/powerpc/ppc40x/current/include/var_intr.h
+++ b/packages/hal/powerpc/ppc40x/current/include/var_intr.h
@@ -34,11 +34,11 @@
 //#####DESCRIPTIONBEGIN####
 //
 // Author(s):   nickg
-// Contributors:nickg, jskov, jlarmour, hmt
+// Contributors:nickg, jskov, jlarmour, hmt, gthomas
 // Date:        2000-04-02
 // Purpose:     Variant interrupt support
 // Description: The macros defined here provide the HAL APIs for handling
-//              interrupts and the clock on the PPC60x variant CPUs.
+//              interrupts and the clock on the PPC40x variant CPUs.
 // Usage:       Is included via the architecture interrupt header:
 //              #include <cyg/hal/hal_intr.h>
 //              ...
@@ -47,7 +47,85 @@
 //
 //=============================================================================
 
-// No builtin interrupt controller in the PPC40x CPUs.
+
+// Special handling for additional exceptions
+
+#define CYGNUM_HAL_VECTOR_TIMERS            16   // Note: must handle all 3!
+#define CYGNUM_HAL_VECTOR_DATA_TLB_MISS     17
+#define CYGNUM_HAL_VECTOR_INSTR_TLB_MISS    18
+#define CYGNUM_HAL_VECTOR_DEBUG             32
+
+#define CYGNUM_HAL_VSR_MAX                  CYGNUM_HAL_VECTOR_DEBUG
+
+// Special handling for interrupts
+
+#define CYGHWR_HAL_INTERRUPT_CONTROLLER_ACCESS_DEFINED
+
+// Additional interrupt sources which are supported by the 40x
+#define CYGNUM_HAL_INTERRUPT_CRITICAL         2
+#define CYGNUM_HAL_INTERRUPT_SERIAL_RCV       3
+#define CYGNUM_HAL_INTERRUPT_SERIAL_XMT       4
+#define CYGNUM_HAL_INTERRUPT_JTAG_RCV         5
+#define CYGNUM_HAL_INTERRUPT_JTAG_XMT         6
+#define CYGNUM_HAL_INTERRUPT_DMA0             7
+#define CYGNUM_HAL_INTERRUPT_DMA1             8
+#define CYGNUM_HAL_INTERRUPT_DMA2             9
+#define CYGNUM_HAL_INTERRUPT_DMA3            10
+#define CYGNUM_HAL_INTERRUPT_EXT0            11
+#define CYGNUM_HAL_INTERRUPT_EXT1            12
+#define CYGNUM_HAL_INTERRUPT_EXT2            13
+#define CYGNUM_HAL_INTERRUPT_EXT3            14
+#define CYGNUM_HAL_INTERRUPT_EXT4            15
+#define CYGNUM_HAL_INTERRUPT_VAR_TIMER       16
+#define CYGNUM_HAL_INTERRUPT_FIXED_TIMER     17
+#define CYGNUM_HAL_INTERRUPT_WATCHDOG_TIMER  18
+
+#define CYGNUM_HAL_ISR_MAX                   CYGNUM_HAL_INTERRUPT_WATCHDOG_TIMER
+
+//--------------------------------------------------------------------------
+// Interrupt controller access
+
+externC void hal_ppc40x_interrupt_mask(int);
+externC void hal_ppc40x_interrupt_unmask(int);
+externC void hal_ppc40x_interrupt_acknowledge(int);
+externC void hal_ppc40x_interrupt_configure(int, int, int);
+externC void hal_ppc40x_interrupt_set_level(int, int);
+
+#define HAL_INTERRUPT_MASK( _vector_ )                     \
+    hal_ppc40x_interrupt_mask( _vector_ ) 
+#define HAL_INTERRUPT_UNMASK( _vector_ )                   \
+    hal_ppc40x_interrupt_unmask( _vector_ )
+#define HAL_INTERRUPT_ACKNOWLEDGE( _vector_ )              \
+    hal_ppc40x_interrupt_acknowledge( _vector_ )
+#define HAL_INTERRUPT_CONFIGURE( _vector_, _level_, _up_ ) \
+    hal_ppc40x_interrupt_configure( _vector_, _level_, _up_ )
+#define HAL_INTERRUPT_SET_LEVEL( _vector_, _level_ )       \
+    hal_ppc40x_interrupt_set_level( _vector_, _level_ )
+
+//--------------------------------------------------------------------------
+// Clock control
+
+externC void hal_ppc40x_clock_initialize(cyg_uint32);
+externC void hal_ppc40x_clock_read(cyg_uint32 *);
+externC void hal_ppc40x_clock_reset(cyg_uint32, cyg_uint32);
+externC void hal_ppc40x_delay_us(int);
+
+#define CYGHWR_HAL_CLOCK_DEFINED
+#define HAL_CLOCK_INITIALIZE( _period_ )   hal_ppc40x_clock_initialize( _period_ )
+#define HAL_CLOCK_RESET( _vec_, _period_ ) hal_ppc40x_clock_reset( _vec_, _period_ )
+#define HAL_CLOCK_READ( _pvalue_ )         hal_ppc40x_clock_read( _pvalue_ )
+#ifdef CYGVAR_KERNEL_COUNTERS_CLOCK_LATENCY
+#define HAL_CLOCK_LATENCY( _pvalue_ )      HAL_CLOCK_READ( (cyg_uint32 *)_pvalue_ )
+#endif
+
+#define HAL_DELAY_US(n) hal_ppc40x_delay_us(n)
+#define CYGNUM_HAL_INTERRUPT_RTC             CYGNUM_HAL_INTERRUPT_VAR_TIMER
+
+//-----------------------------------------------------------------------------
+// Symbols used by assembly code
+#define CYGARC_VARIANT_DEFS                                                     \
+    DEFINE(CYGNUM_HAL_VECTOR_TIMERS, CYGNUM_HAL_VECTOR_TIMERS);                 \
+    DEFINE(CYGNUM_HAL_INTERRUPT_VAR_TIMER,CYGNUM_HAL_INTERRUPT_VAR_TIMER);
 
 //-----------------------------------------------------------------------------
 #endif // ifndef CYGONCE_VAR_INTR_H