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+#ifndef CYGONCE_VAR_CACHE_H
+#define CYGONCE_VAR_CACHE_H
+//=============================================================================
+//
+//      var_cache.h
+//
+//      Variant HAL cache control API
+//
+//=============================================================================
+//####COPYRIGHTBEGIN####
+//                                                                          
+// -------------------------------------------                              
+// The contents of this file are subject to the Red Hat eCos Public License 
+// Version 1.1 (the "License"); you may not use this file except in         
+// compliance with the License.  You may obtain a copy of the License at    
+// http://www.redhat.com/                                                   
+//                                                                          
+// Software distributed under the License is distributed on an "AS IS"      
+// basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.  See the 
+// License for the specific language governing rights and limitations under 
+// the License.                                                             
+//                                                                          
+// The Original Code is eCos - Embedded Configurable Operating System,      
+// released September 30, 1998.                                             
+//                                                                          
+// The Initial Developer of the Original Code is Red Hat.                   
+// Portions created by Red Hat are                                          
+// Copyright (C) 1998, 1999, 2000 Red Hat, Inc.                             
+// All Rights Reserved.                                                     
+// -------------------------------------------                              
+//                                                                          
+//####COPYRIGHTEND####
+//=============================================================================
+//#####DESCRIPTIONBEGIN####
+//
+// Author(s):   nickg
+// Contributors:nickg, jskov
+// Date:        2000-04-02
+// Purpose:     Variant cache control API
+// Description: The macros defined here provide the HAL APIs for handling
+//              cache control operations on the PPC60x variant CPUs.
+// Usage:       Is included via the architecture cache header:
+//              #include <cyg/hal/hal_cache.h>
+//              ...
+//
+//####DESCRIPTIONEND####
+//
+//=============================================================================
+
+#include <pkgconf/hal.h>
+#include <cyg/infra/cyg_type.h>
+
+#include <cyg/hal/ppc_regs.h>
+
+#include <cyg/hal/plf_cache.h>
+
+
+//-----------------------------------------------------------------------------
+// Cache dimensions
+
+// Data cache
+#define HAL_DCACHE_SIZE                 4096    // Size of data cache in bytes
+#define HAL_DCACHE_LINE_SIZE            16      // Size of a data cache line
+#define HAL_DCACHE_WAYS                 2       // Associativity of the cache
+
+// Instruction cache
+#define HAL_ICACHE_SIZE                 4096    // Size of cache in bytes
+#define HAL_ICACHE_LINE_SIZE            16      // Size of a cache line
+#define HAL_ICACHE_WAYS                 2       // Associativity of the cache
+
+#define HAL_DCACHE_SETS (HAL_DCACHE_SIZE/(HAL_DCACHE_LINE_SIZE*HAL_DCACHE_WAYS))
+#define HAL_ICACHE_SETS (HAL_ICACHE_SIZE/(HAL_ICACHE_LINE_SIZE*HAL_ICACHE_WAYS))
+
+//-----------------------------------------------------------------------------
+// Global control of data cache
+
+// Enable the data cache
+#define HAL_DCACHE_ENABLE()
+
+// Disable the data cache
+#define HAL_DCACHE_DISABLE()
+
+// Invalidate the entire cache
+#define HAL_DCACHE_INVALIDATE_ALL()
+
+// Synchronize the contents of the cache with memory.
+#define HAL_DCACHE_SYNC()
+
+// Query the state of the data cache
+#define HAL_DCACHE_IS_ENABLED(_state_)          \
+    CYG_MACRO_START                             \
+    (_state_) = 0;                              \
+    CYG_MACRO_END
+
+// Set the data cache refill burst size
+//#define HAL_DCACHE_BURST_SIZE(_size_)
+
+// Set the data cache write mode
+//#define HAL_DCACHE_WRITE_MODE( _mode_ )
+
+//#define HAL_DCACHE_WRITETHRU_MODE       0
+//#define HAL_DCACHE_WRITEBACK_MODE       1
+
+// Load the contents of the given address range into the data cache
+// and then lock the cache so that it stays there.
+//#define HAL_DCACHE_LOCK(_base_, _size_)
+
+// Undo a previous lock operation
+//#define HAL_DCACHE_UNLOCK(_base_, _size_)
+
+// Unlock entire cache
+//#define HAL_DCACHE_UNLOCK_ALL()
+
+//-----------------------------------------------------------------------------
+// Data cache line control
+
+// Allocate cache lines for the given address range without reading its
+// contents from memory.
+//#define HAL_DCACHE_ALLOCATE( _base_ , _size_ )
+
+// Write dirty cache lines to memory and invalidate the cache entries
+// for the given address range.
+//#define HAL_DCACHE_FLUSH( _base_ , _size_ )
+
+// Invalidate cache lines in the given range without writing to memory.
+//#define HAL_DCACHE_INVALIDATE( _base_ , _size_ )
+
+// Write dirty cache lines to memory for the given address range.
+//#define HAL_DCACHE_STORE( _base_ , _size_ )
+
+// Preread the given range into the cache with the intention of reading
+// from it later.
+//#define HAL_DCACHE_READ_HINT( _base_ , _size_ )
+
+// Preread the given range into the cache with the intention of writing
+// to it later.
+//#define HAL_DCACHE_WRITE_HINT( _base_ , _size_ )
+
+// Allocate and zero the cache lines associated with the given range.
+//#define HAL_DCACHE_ZERO( _base_ , _size_ )
+
+//-----------------------------------------------------------------------------
+// Global control of Instruction cache
+
+// Enable the instruction cache
+#define HAL_ICACHE_ENABLE()
+
+// Disable the instruction cache
+#define HAL_ICACHE_DISABLE()
+
+// Invalidate the entire cache
+#define HAL_ICACHE_INVALIDATE_ALL()
+
+// Synchronize the contents of the cache with memory.
+#define HAL_ICACHE_SYNC()
+
+// Query the state of the instruction cache
+#define HAL_ICACHE_IS_ENABLED(_state_)          \
+    CYG_MACRO_START                             \
+    (_state_) = 0;                              \
+    CYG_MACRO_END
+
+// Set the instruction cache refill burst size
+//#define HAL_ICACHE_BURST_SIZE(_size_)
+
+// Load the contents of the given address range into the instruction cache
+// and then lock the cache so that it stays there.
+//#define HAL_ICACHE_LOCK(_base_, _size_)
+
+// Undo a previous lock operation
+//#define HAL_ICACHE_UNLOCK(_base_, _size_)
+
+// Unlock entire cache
+//#define HAL_ICACHE_UNLOCK_ALL()
+
+//-----------------------------------------------------------------------------
+// Instruction cache line control
+
+// Invalidate cache lines in the given range without writing to memory.
+//#define HAL_ICACHE_INVALIDATE( _base_ , _size_ )
+
+//-----------------------------------------------------------------------------
+#endif // ifndef CYGONCE_VAR_CACHE_H
+// End of var_cache.h