packages/hal/arm/mx25/karo/v1_0/include/plf_io.h

   1 #ifndef CYGONCE_HAL_ARM_BOARD_PLF_IO_H
   2 #define CYGONCE_HAL_ARM_BOARD_PLF_IO_H
   3
   4 //=============================================================================
   5 //
   6 //      plf_io.h
   7 //
   8 //      Platform specific support (register layout, etc)
   9 //
  10 //=============================================================================
  11 //####ECOSGPLCOPYRIGHTBEGIN####
  12 // -------------------------------------------
  13 // This file is part of eCos, the Embedded Configurable Operating System.
  14 // Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
  15 //
  16 // eCos is free software; you can redistribute it and/or modify it under
  17 // the terms of the GNU General Public License as published by the Free
  18 // Software Foundation; either version 2 or (at your option) any later version.
  19 //
  20 // eCos is distributed in the hope that it will be useful, but WITHOUT ANY
  21 // WARRANTY; without even the implied warranty of MERCHANTABILITY or
  22 // FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  23 // for more details.
  24 //
  25 // You should have received a copy of the GNU General Public License along
  26 // with eCos; if not, write to the Free Software Foundation, Inc.,
  27 // 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
  28 //
  29 // As a special exception, if other files instantiate templates or use macros
  30 // or inline functions from this file, or you compile this file and link it
  31 // with other works to produce a work based on this file, this file does not
  32 // by itself cause the resulting work to be covered by the GNU General Public
  33 // License. However the source code for this file must still be made available
  34 // in accordance with section (3) of the GNU General Public License.
  35 //
  36 // This exception does not invalidate any other reasons why a work based on
  37 // this file might be covered by the GNU General Public License.
  38 //
  39 // Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
  40 // at http://sources.redhat.com/ecos/ecos-license/
  41 // -------------------------------------------
  42 //####ECOSGPLCOPYRIGHTEND####
  43 //=============================================================================
  44
  45 #include <cyg/hal/karo_tx25.h>
  46 #include <cyg/hal/hal_soc.h>
  47 #include <redboot.h>
  48
  49 #ifdef RAM_BANK1_SIZE
  50 #define CYGHWR_REDBOOT_LINUX_ATAG_MEM(_p_)                                                      \
  51         CYG_MACRO_START                                                                                                 \
  52         {                                                                                                                               \
  53                 extern unsigned int system_rev;                                                         \
  54                 /* Next ATAG_MEM. */                                                                            \
  55                 _p_->hdr.size = (sizeof(struct tag_mem32) +                                     \
  56                                                   sizeof(struct tag_header))/sizeof(long);      \
  57                 _p_->hdr.tag = ATAG_MEM;                                                                        \
  58                 /* Round up so there's only one bit set in the memory size.     \
  59                 * Don't double it if it's already a power of two, though.       \
  60                 */                                                                                                                      \
  61                 _p_->u.mem.size  = 1<<hal_msbindex(RAM_BANK0_SIZE);                     \
  62                 if (_p_->u.mem.size < RAM_BANK0_SIZE)                                           \
  63                                  _p_->u.mem.size <<= 1;                                                         \
  64                 _p_->u.mem.start = RAM_BANK0_BASE;                                                      \
  65                                                                                                                                         \
  66                 _p_ = (struct tag *)((long *)_p_ + _p_->hdr.size);                      \
  67                                                                                                                                         \
  68                 /* Next ATAG_MEM. */                                                                            \
  69                 _p_->hdr.size = (sizeof(struct tag_mem32) +                                     \
  70                                                   sizeof(struct tag_header))/sizeof(long);      \
  71                 _p_->hdr.tag = ATAG_MEM;                                                                        \
  72                 /* Round up so there's only one bit set in the memory size.     \
  73                 * Don't double it if it's already a power of two, though.       \
  74                 */                                                                                                                      \
  75                 _p_->u.mem.size  = 1<<hal_msbindex(RAM_BANK1_SIZE);                     \
  76                 if (_p_->u.mem.size < RAM_BANK1_SIZE)                                           \
  77                                  _p_->u.mem.size <<= 1;                                                         \
  78                 _p_->u.mem.start = RAM_BANK1_BASE;                                                      \
  79                                                                                                                                         \
  80                 _p_ = (struct tag *)((long *)_p_ + _p_->hdr.size);                      \
  81                                                                                                                                         \
  82                 _p_->hdr.size = ((sizeof(struct tag_revision)) +                        \
  83                                                   sizeof(struct tag_header))/sizeof(long);      \
  84                 _p_->hdr.tag = ATAG_REVISION;                                                           \
  85                 _p_->u.revision.rev = system_rev;                                                       \
  86         }                                                                                                                               \
  87         CYG_MACRO_END
  88 #else
  89 #define CYGHWR_REDBOOT_LINUX_ATAG_MEM(_p_)                                                      \
  90         CYG_MACRO_START                                                                                                 \
  91         {                                                                                                                               \
  92                 extern unsigned int system_rev;                                                         \
  93                 /* Next ATAG_MEM. */                                                                            \
  94                 _p_->hdr.size = (sizeof(struct tag_mem32) +                                     \
  95                                                   sizeof(struct tag_header))/sizeof(long);      \
  96                 _p_->hdr.tag = ATAG_MEM;                                                                        \
  97                 /* Round up so there's only one bit set in the memory size.     \
  98                 * Don't double it if it's already a power of two, though.       \
  99                 */                                                                                                                      \
 100                 _p_->u.mem.size  = 1<<hal_msbindex(RAM_BANK0_SIZE);                     \
 101                 if (_p_->u.mem.size < RAM_BANK0_SIZE)                                           \
 102                                  _p_->u.mem.size <<= 1;                                                         \
 103                 _p_->u.mem.start = RAM_BANK0_BASE;                                                      \
 104                                                                                                                                         \
 105                 _p_ = (struct tag *)((long *)_p_ + _p_->hdr.size);                      \
 106                                                                                                                                         \
 107                 _p_->hdr.size = ((sizeof(struct tag_revision)) +                        \
 108                                                   sizeof(struct tag_header))/sizeof(long);      \
 109                 _p_->hdr.tag = ATAG_REVISION;                                                           \
 110                 _p_->u.revision.rev = system_rev;                                                       \
 111         }                                                                                                                               \
 112         CYG_MACRO_END
 113 #endif
 114
 115 #endif // CYGONCE_HAL_ARM_BOARD_PLF_IO_H