Initial revision

[karo-tx-redboot.git] / packages / hal / arm / mx27 / 3stack / v2_0 / include / plf_mmap.h

diff --git a/packages/hal/arm/mx27/3stack/v2_0/include/plf_mmap.h b/packages/hal/arm/mx27/3stack/v2_0/include/plf_mmap.h
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+++ b/packages/hal/arm/mx27/3stack/v2_0/include/plf_mmap.h
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+#ifndef CYGONCE_HAL_BOARD_PLATFORM_PLF_MMAP_H
+#define CYGONCE_HAL_BOARD_PLATFORM_PLF_MMAP_H
+//=============================================================================
+//
+//      plf_mmap.h
+//
+//      Platform specific memory map support
+//
+//=============================================================================
+//####ECOSGPLCOPYRIGHTBEGIN####
+// -------------------------------------------
+// This file is part of eCos, the Embedded Configurable Operating System.
+// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
+//
+// eCos is free software; you can redistribute it and/or modify it under
+// the terms of the GNU General Public License as published by the Free
+// Software Foundation; either version 2 or (at your option) any later version.
+//
+// eCos is distributed in the hope that it will be useful, but WITHOUT ANY
+// WARRANTY; without even the implied warranty of MERCHANTABILITY or
+// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+// for more details.
+//
+// You should have received a copy of the GNU General Public License along
+// with eCos; if not, write to the Free Software Foundation, Inc.,
+// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+//
+// As a special exception, if other files instantiate templates or use macros
+// or inline functions from this file, or you compile this file and link it
+// with other works to produce a work based on this file, this file does not
+// by itself cause the resulting work to be covered by the GNU General Public
+// License. However the source code for this file must still be made available
+// in accordance with section (3) of the GNU General Public License.
+//
+// This exception does not invalidate any other reasons why a work based on
+// this file might be covered by the GNU General Public License.
+//
+// Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
+// at http://sources.redhat.com/ecos/ecos-license/
+// -------------------------------------------
+//####ECOSGPLCOPYRIGHTEND####
+//===========================================================================
+
+#include <cyg/hal/hal_misc.h>
+
+// Get the pagesize for a particular virtual address:
+
+// This does not depend on the vaddr.
+#define HAL_MM_PAGESIZE( vaddr, pagesize ) CYG_MACRO_START      \
+    (pagesize) = SZ_1M;                                         \
+CYG_MACRO_END
+
+// Get the physical address from a virtual address:
+
+#define HAL_VIRT_TO_PHYS_ADDRESS( vaddr, paddr ) CYG_MACRO_START           \
+    cyg_uint32 _v_ = (cyg_uint32)(vaddr);                                  \
+    if ( _v_ < 128 * SZ_1M )          /* SDRAM */                           \
+        _v_ += 0xA00u * SZ_1M;                                             \
+    else if ( _v_ < 0xF00u * SZ_1M )                                       \
+        /* no change */ ;                                                  \
+    else if ( _v_ < 0xF01u * SZ_1M ) /* Boot ROM */                        \
+        _v_ -= 0xF00u * SZ_1M;                                             \
+    else                             /* Rest of it */                      \
+        /* no change */ ;                                                  \
+    (paddr) = _v_;                                                         \
+CYG_MACRO_END
+
+//---------------------------------------------------------------------------
+#endif // CYGONCE_HAL_BOARD_PLATFORM_PLF_MMAP_H