reactos/boot/armllb/hw/versatile/hwinfo.c

   1 /*
   2  * PROJECT:         ReactOS Boot Loader
   3  * LICENSE:         BSD - See COPYING.ARM in the top level directory
   4  * FILE:            boot/armllb/hw/versatile/hwinfo.c
   5  * PURPOSE:         LLB Hardware Info Routines
   6  * PROGRAMMERS:     ReactOS Portable Systems Group
   7  */
   8
   9 #include "precomp.h"
  10
  11 #define PL031_RTC_DR                (LlbHwVersaRtcBase + 0x00)
  12 static const ULONG LlbHwVersaRtcBase = 0x101E8000;
  13
  14 ULONG
  15 NTAPI
  16 LlbHwGetBoardType(VOID)
  17 {
  18     return MACH_TYPE_VERSATILE_PB;
  19 }
  20
  21 ULONG
  22 NTAPI
  23 LlbHwGetPClk(VOID)
  24 {
  25     return 24000000;
  26 }
  27
  28 ULONG
  29 NTAPI
  30 LlbHwGetTmr0Base(VOID)
  31 {
  32     return 0x101E2000;
  33 }
  34
  35 ULONG
  36 NTAPI
  37 LlbHwGetSerialUart(VOID)
  38 {
  39     return 0;
  40 }
  41
  42 //
  43 // Versatile Memory Map
  44 //
  45 // 0x00000000 - 0x000000FF ARM Vectors                              [  1 KB]
  46 // 0x00000100 - 0x000001FF ATAG Structures                          [  1 KB]
  47 // 0x00000200 - 0x0000FFFF ARM STACK                                [ 62 KB]
  48 // 0x00010000 - 0x0001FFFF ARM LLB                                  [ 64 KB]
  49 // 0x00020000 - 0x0009FFFF ARM OS LOADER                            [512 KB]
  50 // 0x000A0000 - 0x000FFFFF ARM FRAMEBUFFER                          [384 KB]
  51 // 0x00100000 - 0x007FFFFF OS LOADER FREE/UNUSED                    [  7 MB]
  52 // 0x00800000 - 0x017FFFFF KERNEL, HAL, INITIAL DRIVER LOAD ADDR    [ 16 MB]
  53 // 0x01800000 - 0x037FFFFF RAM DISK                                 [ 32 MB]
  54 // 0x03800000 - 0x07FFFFFF FREE RAM                                 [ 72 MB]
  55 // 0x08000000 - 0x0FFFFFFF FREE RAM IF 256MB DEVICE                 [128 MB]
  56 // 0x10000000 - 0x1FFFFFFF MMIO DEVICES                             [256 MB]
  57 BIOS_MEMORY_MAP LlbHwVersaMemoryMap[] =
  58 {
  59     {0x00000000, 0x00000100, BiosMemoryReserved,   0},
  60     {0x00000100, 0x00000100, BiosMemoryBootStrap,  0},
  61     {0x00000200, 0x0000FE00, BiosMemoryBootStrap,  0},
  62     {0x00010000, 0x00010000, BiosMemoryBootStrap,  0},
  63     {0x00020000, 0x00080000, BiosMemoryBootLoader, 0},
  64     {0x000A0000, 0x00060000, BiosMemoryBootLoader, 0},
  65     {0x00100000, 0x01700000, BiosMemoryUsable,     0},
  66     {0x01800000, 0x02000000, BiosMemoryReserved,   0},
  67     {0x10000000, 0x10000000, BiosMemoryReserved,   0},
  68     {0, 0, 0, 0}
  69 };
  70
  71 VOID
  72 NTAPI
  73 LlbHwBuildMemoryMap(IN PBIOS_MEMORY_MAP MemoryMap)
  74 {
  75     PBIOS_MEMORY_MAP MapEntry;
  76     ULONG Base, Size, FsBase, FsSize;
  77
  78     /* Parse hardware memory map */
  79     MapEntry = LlbHwVersaMemoryMap;
  80     while (MapEntry->Length)
  81     {
  82         /* Add this entry */
  83         LlbAllocateMemoryEntry(MapEntry->Type, MapEntry->BaseAddress, MapEntry->Length);
  84
  85         /* Move to the next one */
  86         MapEntry++;
  87     }
  88
  89     /* Query memory and RAMDISK information */
  90     LlbEnvGetMemoryInformation(&Base, &Size);
  91     LlbEnvGetRamDiskInformation(&FsBase, &FsSize);
  92
  93     /* Add-in the size of the ramdisk */
  94     Base = FsBase + FsSize;
  95
  96     /* Subtract size of ramdisk and anything else before it */
  97     Size -= Base;
  98
  99     /* Allocate an entry for it */
 100     LlbAllocateMemoryEntry(BiosMemoryUsable, Base, Size);
 101 }
 102
 103 ULONG
 104 LlbHwRtcRead(VOID)
 105 {
 106     /* Read RTC value */
 107     return READ_REGISTER_ULONG(PL031_RTC_DR);
 108 }
 109 /* EOF */