include/grub/mips/loongson.h

   1 /*
   2  *  GRUB  --  GRand Unified Bootloader
   3  *  Copyright (C) 2010  Free Software Foundation, Inc.
   4  *
   5  *  GRUB is free software: you can redistribute it and/or modify
   6  *  it under the terms of the GNU General Public License as published by
   7  *  the Free Software Foundation, either version 3 of the License, or
   8  *  (at your option) any later version.
   9  *
  10  *  GRUB is distributed in the hope that it will be useful,
  11  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  *  GNU General Public License for more details.
  14  *
  15  *  You should have received a copy of the GNU General Public License
  16  *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
  17  */
  18
  19 #ifndef GRUB_LOONGSON_CPU_HEADER
  20 #define GRUB_LOONGSON_CPU_HEADER        1
  21
  22 #include <grub/cpu/mips.h>
  23
  24 #define GRUB_CPU_LOONGSON_FLASH_START            0xbfc00000
  25 #define GRUB_CPU_LOONGSON_FLASH_TLB_REFILL       0xbfc00200
  26 #define GRUB_CPU_LOONGSON_FLASH_CACHE_ERROR      0xbfc00300
  27 #define GRUB_CPU_LOONGSON_FLASH_OTHER_EXCEPTION  0xbfc00380
  28
  29 #define GRUB_CPU_LOONGSON_DDR2_BASE              0xaffffe00
  30 #define GRUB_CPU_LOONGSON_DDR2_REG1_HI_8BANKS    0x00000001
  31 #define GRUB_CPU_LOONGSON_DDR2_REG_SIZE          0x8
  32 #define GRUB_CPU_LOONGSON_DDR2_REG_STEP          0x10
  33
  34 #define GRUB_CPU_LOONGSON_COP0_CACHE_CONFIG GRUB_CPU_REGISTER_WRAP($16)
  35 #define GRUB_CPU_LOONGSON_COP0_CACHE_CONFIG_ILINESIZE 0x10
  36 #define GRUB_CPU_LOONGSON_COP0_CACHE_CONFIG_DLINESIZE 0x8
  37 #define GRUB_CPU_LOONGSON_COP0_CACHE_DSIZE_SHIFT 6
  38 #define GRUB_CPU_LOONGSON_COP0_CACHE_ISIZE_SHIFT 9
  39 #define GRUB_CPU_LOONGSON_COP0_CACHE_SIZE_MASK  0x7
  40 #define GRUB_CPU_LOONGSON_COP0_CACHE_SIZE_OFFSET 12
  41
  42 #define GRUB_CPU_LOONGSON_COP0_I_INDEX_INVALIDATE 0
  43 #define GRUB_CPU_LOONGSON_COP0_D_INDEX_TAG_STORE  9
  44 #define GRUB_CPU_LOONGSON_COP0_S_INDEX_TAG_STORE  11
  45
  46 #define GRUB_CPU_LOONGSON_COP0_I_INDEX_BIT_OFFSET 5
  47 #define GRUB_CPU_LOONGSON_COP0_D_INDEX_BIT_OFFSET 5
  48 #define GRUB_CPU_LOONGSON_COP0_S_INDEX_BIT_OFFSET 5
  49
  50 #define GRUB_CPU_LOONGSON_CACHE_ACCELERATED 7
  51 #define GRUB_CPU_LOONGSON_CACHE_UNCACHED 2
  52 #define GRUB_CPU_LOONGSON_CACHE_CACHED 3
  53 #define GRUB_CPU_LOONGSON_CACHE_TYPE_MASK 7
  54 #define GRUB_CPU_LOONGSON_CACHE_LINE_SIZE_LOG_SMALL 4
  55 #define GRUB_CPU_LOONGSON_CACHE_LINE_SIZE_LOG_BIG 5
  56 #define GRUB_CPU_LOONGSON_CACHE_LINE_SIZE_SMALL 16
  57 #define GRUB_CPU_LOONGSON_CACHE_LINE_SIZE_BIG 32
  58
  59 #define GRUB_CPU_LOONGSON_I_CACHE_LOG_WAYS 2
  60 #define GRUB_CPU_LOONGSON_D_CACHE_LOG_WAYS 2
  61 #define GRUB_CPU_LOONGSON_S_CACHE_LOG_WAYS 2
  62
  63 /* FIXME: determine dynamically.  */
  64 #define GRUB_CPU_LOONGSON_SECONDARY_CACHE_LOG_SIZE 19
  65
  66 #define GRUB_CPU_LOONGSON_COP0_BADVADDR GRUB_CPU_REGISTER_WRAP($8)
  67 #define GRUB_CPU_LOONGSON_COP0_CAUSE GRUB_CPU_REGISTER_WRAP($13)
  68 #define GRUB_CPU_LOONGSON_COP0_EPC GRUB_CPU_REGISTER_WRAP($14)
  69 #define GRUB_CPU_LOONGSON_COP0_PRID GRUB_CPU_REGISTER_WRAP($15)
  70 #define GRUB_CPU_LOONGSON_COP0_CACHE_TAGLO GRUB_CPU_REGISTER_WRAP($28)
  71 #define GRUB_CPU_LOONGSON_COP0_CACHE_TAGHI GRUB_CPU_REGISTER_WRAP($29)
  72
  73 #define GRUB_CPU_LOONGSON_LIOCFG   0xbfe00108
  74 #define GRUB_CPU_LOONGSON_ROM_DELAY_OFFSET 2
  75 #define GRUB_CPU_LOONGSON_ROM_DELAY_MASK 0x1f
  76 #define GRUB_CPU_LOONGSON_CORECFG   0xbfe00180
  77 #define GRUB_CPU_LOONGSON_CORECFG_DISABLE_DDR2_SPACE 0x100
  78 #define GRUB_CPU_LOONGSON_CORECFG_BUFFER_CPU 0x200
  79
  80 #define GRUB_CPU_LOONGSON_PCI_HIT1_SEL_LO   0xbfe00150
  81 #define GRUB_CPU_LOONGSON_PCI_HIT1_SEL_HI   0xbfe00154
  82
  83 #define GRUB_CPU_LOONGSON_GPIOCFG  0xbfe00120
  84 #define GRUB_CPU_YEELOONG_SHUTDOWN_GPIO 1
  85
  86 #endif