target/linux/ubicom32/files/arch/ubicom32/include/asm/memory_map.h

   1 /*
   2  * arch/ubicom32/include/asm/memory_map.h
   3  *   Machine memory maps/
   4  *
   5  * (C) Copyright 2009, Ubicom, Inc.
   6  *
   7  * This file is part of the Ubicom32 Linux Kernel Port.
   8  *
   9  * The Ubicom32 Linux Kernel Port is free software: you can redistribute
  10  * it and/or modify it under the terms of the GNU General Public License
  11  * as published by the Free Software Foundation, either version 2 of the
  12  * License, or (at your option) any later version.
  13  *
  14  * The Ubicom32 Linux Kernel Port is distributed in the hope that it
  15  * will be useful, but WITHOUT ANY WARRANTY; without even the implied
  16  * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
  17  * the GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with the Ubicom32 Linux Kernel Port.  If not,
  21  * see <http://www.gnu.org/licenses/>.
  22  *
  23  * Ubicom32 implementation derived from (with many thanks):
  24  *   arch/m68knommu
  25  *   arch/blackfin
  26  *   arch/parisc
  27  */
  28 #ifndef _ASM_UBICOM32_MEMORY_MAP_H
  29 #define _ASM_UBICOM32_MEMORY_MAP_H
  30
  31 /*
  32  * Memory Size
  33  */
  34 #define OCM_SECTOR_SIZE 0x00008000              /* 32K */
  35
  36 #if defined(CONFIG_UBICOM32_V3)
  37 #define OCMSIZE 0x00030000      /* 192K on-chip RAM for both program and data */
  38 #elif defined(CONFIG_UBICOM32_V4)
  39 #define OCMSIZE 0x0003C000      /* 240K on-chip RAM for both program and data */
  40 #else
  41 #error "Unknown IP5K silicon"
  42 #endif
  43
  44 #define OCMSTART        0x3ffc0000 /* alias from 0x03000000 for easy
  45                                     * jump to/from SDRAM */
  46 #define OCMEND          (OCMSTART + OCMSIZE)
  47
  48 #define SDRAMSTART      0x40000000
  49
  50 #define KERNELSTART     (SDRAMSTART + 0x00400000)
  51
  52 #define FLASHSTART      0x60000000
  53
  54 /*
  55  * CODELOADER / OS_SYSCALL OCM Reservations
  56  * Don't change these unless you know what you are doing.
  57  */
  58 #define CODELOADER_SIZE  0x30
  59 #define CODELOADER_BEGIN OCMSTART /* Must be OCM start for gdb to work. */
  60 #define CODELOADER_END   (CODELOADER_BEGIN + CODELOADER_SIZE)
  61
  62 #define OS_SYSCALL_BEGIN CODELOADER_END /* system_call at this address */
  63 #define OS_SYSCALL_SIZE  (512 - CODELOADER_SIZE)
  64 #define OS_SYSCALL_END   (OS_SYSCALL_BEGIN + OS_SYSCALL_SIZE)
  65
  66 #endif /* _ASM_UBICOM32_MEMORY_MAP_H */