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110 lines
3 KiB
C
110 lines
3 KiB
C
/*
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* PROJECT: ReactOS Boot Loader
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* LICENSE: BSD - See COPYING.ARM in the top level directory
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* FILE: boot/armllb/hw/versatile/hwinfo.c
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* PURPOSE: LLB Hardware Info Routines
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* PROGRAMMERS: ReactOS Portable Systems Group
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*/
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#include "precomp.h"
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#define PL031_RTC_DR (LlbHwVersaRtcBase + 0x00)
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static const ULONG LlbHwVersaRtcBase = 0x101E8000;
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ULONG
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NTAPI
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LlbHwGetBoardType(VOID)
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{
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return MACH_TYPE_VERSATILE_PB;
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}
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ULONG
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NTAPI
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LlbHwGetPClk(VOID)
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{
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return 24000000;
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}
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ULONG
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NTAPI
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LlbHwGetTmr0Base(VOID)
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{
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return 0x101E2000;
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}
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ULONG
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NTAPI
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LlbHwGetSerialUart(VOID)
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{
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return 0;
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}
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//
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// Versatile Memory Map
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//
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// 0x00000000 - 0x000000FF ARM Vectors [ 1 KB]
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// 0x00000100 - 0x000001FF ATAG Structures [ 1 KB]
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// 0x00000200 - 0x0000FFFF ARM STACK [ 62 KB]
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// 0x00010000 - 0x0001FFFF ARM LLB [ 64 KB]
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// 0x00020000 - 0x0009FFFF ARM OS LOADER [512 KB]
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// 0x000A0000 - 0x0013FFFF ARM FRAMEBUFFER [640 KB]
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// 0x00140000 - 0x007FFFFF OS LOADER FREE/UNUSED [ 6 MB]
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// 0x00800000 - 0x017FFFFF KERNEL, HAL, INITIAL DRIVER LOAD ADDR [ 16 MB]
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// 0x01800000 - 0x037FFFFF RAM DISK [ 32 MB]
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// 0x03800000 - 0x07FFFFFF FREE RAM [ 72 MB]
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// 0x08000000 - 0x0FFFFFFF FREE RAM IF 256MB DEVICE [128 MB]
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// 0x10000000 - 0x1FFFFFFF MMIO DEVICES [256 MB]
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BIOS_MEMORY_MAP LlbHwVersaMemoryMap[] =
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{
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{0x00000000, 0x00000100, BiosMemoryReserved, 0},
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{0x00000100, 0x00000100, BiosMemoryBootStrap, 0},
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{0x00000200, 0x0000FE00, BiosMemoryBootStrap, 0},
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{0x00010000, 0x00010000, BiosMemoryBootStrap, 0},
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{0x00020000, 0x00080000, BiosMemoryBootLoader, 0},
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{0x000A0000, 0x000A0000, BiosMemoryBootLoader, 0},
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{0x00140000, 0x016C0000, BiosMemoryUsable, 0},
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{0x01800000, 0x02000000, BiosMemoryReserved, 0},
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{0x10000000, 0x10000000, BiosMemoryReserved, 0},
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{0, 0, 0, 0}
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};
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VOID
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NTAPI
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LlbHwBuildMemoryMap(IN PBIOS_MEMORY_MAP MemoryMap)
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{
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PBIOS_MEMORY_MAP MapEntry;
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ULONG Base, Size, FsBase, FsSize;
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/* Parse hardware memory map */
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MapEntry = LlbHwVersaMemoryMap;
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while (MapEntry->Length)
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{
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/* Add this entry */
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LlbAllocateMemoryEntry(MapEntry->Type, MapEntry->BaseAddress, MapEntry->Length);
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/* Move to the next one */
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MapEntry++;
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}
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/* Query memory and RAMDISK information */
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LlbEnvGetMemoryInformation(&Base, &Size);
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LlbEnvGetRamDiskInformation(&FsBase, &FsSize);
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/* Add-in the size of the ramdisk */
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Base = FsBase + FsSize;
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/* Subtract size of ramdisk and anything else before it */
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Size -= Base;
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/* Allocate an entry for it */
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LlbAllocateMemoryEntry(BiosMemoryUsable, Base, Size);
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}
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ULONG
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LlbHwRtcRead(VOID)
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{
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/* Read RTC value */
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return READ_REGISTER_ULONG(PL031_RTC_DR);
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}
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/* EOF */
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