/*
* PROJECT: ReactOS Boot Loader
- * LICENSE: GPL - See COPYING in the top level directory
+ * LICENSE: BSD - See COPYING.ARM in the top level directory
* FILE: boot/freeldr/arch/arm/marcharm.c
- * PURPOSE: Implements ARM-specific machine initialization
- * PROGRAMMERS: alex@winsiderss.com
+ * PURPOSE: Provides abstraction between the ARM Boot Loader and FreeLDR
+ * PROGRAMMERS: ReactOS Portable Systems Group
*/
/* INCLUDES *******************************************************************/
#include <freeldr.h>
+#define RGB565(r, g, b) (((r >> 3) << 11)| ((g >> 2) << 5)| ((b >> 3) << 0))
/* GLOBALS ********************************************************************/
-//
-// The only things we support
-//
-typedef enum _ARM_BOARD_TYPE
-{
- //
- // Marvell Feroceon-based SoC:
- // Buffalo Linkstation, KuroBox Pro, D-Link DS323 and others
- //
- ARM_FEROCEON = 1,
-} ARM_BOARD_TYPE;
-
-//
-// Compatible boot-loaders should return us this information
-//
-#define ARM_BOARD_CONFIGURATION_MAJOR_VERSION 1
-#define ARM_BOARD_CONFIGURATION_MINOR_VERSION 1
-typedef struct _ARM_BOARD_CONFIGURATION_BLOCK
-{
- ULONG MajorVersion;
- ULONG MinorVersion;
- ARM_BOARD_TYPE BoardType;
- ULONG TimerRegisterBase;
- ULONG UartRegisterBase;
- PBIOS_MEMORY_MAP MemoryMap;
- CHAR CommandLine[256];
-} ARM_BOARD_CONFIGURATION_BLOCK, *PARM_BOARD_CONFIGURATION_BLOCK;
+UCHAR BootStack[0x4000];
+PUCHAR BootStackEnd = &BootStack[0x3FFF];
+PARM_BOARD_CONFIGURATION_BLOCK ArmBoardBlock;
+ULONG BootDrive, BootPartition;
+VOID ArmPrepareForReactOS(IN BOOLEAN Setup);
+ADDRESS_RANGE ArmBoardMemoryMap[16];
+ULONG ArmBoardMemoryMapRangeCount;
+ULONG gDiskReadBuffer, gFileSysBuffer;
/* FUNCTIONS ******************************************************************/
-PARM_BOARD_CONFIGURATION_BLOCK ArmBoardBlock;
-
VOID
ArmInit(IN PARM_BOARD_CONFIGURATION_BLOCK BootContext)
{
+ ULONG i;
+
//
// Remember the pointer
//
ArmBoardBlock = BootContext;
//
- // Let's make sure we understand the boot-loader
+ // Let's make sure we understand the LLB
//
ASSERT(ArmBoardBlock->MajorVersion == ARM_BOARD_CONFIGURATION_MAJOR_VERSION);
ASSERT(ArmBoardBlock->MinorVersion == ARM_BOARD_CONFIGURATION_MINOR_VERSION);
//
// This should probably go away once we support more boards
//
- ASSERT(ArmBoardBlock->BoardType == ARM_FEROCEON);
+ ASSERT((ArmBoardBlock->BoardType == MACH_TYPE_FEROCEON) ||
+ (ArmBoardBlock->BoardType == MACH_TYPE_VERSATILE_PB) ||
+ (ArmBoardBlock->BoardType == MACH_TYPE_OMAP3_BEAGLE));
+
+ //
+ // Save data required for memory initialization
+ //
+ ArmBoardMemoryMapRangeCount = ArmBoardBlock->MemoryMapEntryCount;
+ ASSERT(ArmBoardMemoryMapRangeCount != 0);
+ ASSERT(ArmBoardMemoryMapRangeCount < 16);
+ for (i = 0; i < ArmBoardMemoryMapRangeCount; i++)
+ {
+ //
+ // Copy each entry
+ //
+ RtlCopyMemory(&ArmBoardMemoryMap[i],
+ &ArmBoardBlock->MemoryMap[i],
+ sizeof(ADDRESS_RANGE));
+ }
//
// Call FreeLDR's portable entrypoint with our command-line
BootMain(ArmBoardBlock->CommandLine);
}
+BOOLEAN
+ArmDiskNormalizeSystemPath(IN OUT PCHAR SystemPath,
+ IN unsigned Size)
+{
+ TuiPrintf("Called: %s\n", SystemPath);
+ while (TRUE);
+ return TRUE;
+}
+
+BOOLEAN
+ArmDiskGetBootPath(OUT PCHAR BootPath,
+ IN unsigned Size)
+{
+ PCCH Path = "ramdisk(0)";
+
+ /* Make sure enough space exists */
+ if (Size < sizeof(Path)) return FALSE;
+
+ /* On ARM platforms, the loader is always in RAM */
+ strcpy(BootPath, Path);
+ return TRUE;
+}
+
+PCONFIGURATION_COMPONENT_DATA
+ArmHwDetect(VOID)
+{
+ PCONFIGURATION_COMPONENT_DATA RootNode;
+
+ //
+ // Create the root node
+ //
+ FldrCreateSystemKey(&RootNode);
+
+ //
+ // TODO:
+ // There's no such thing as "PnP" on embedded hardware.
+ // The boot loader will send us a device tree, similar to ACPI
+ // or OpenFirmware device trees, and we will convert it to ARC.
+ //
+
+ //
+ // Register RAMDISK Device
+ //
+ RamDiskInitialize();
+
+ //
+ // Return the root node
+ //
+ return RootNode;
+}
+
+ULONG
+ArmMemGetMemoryMap(OUT PBIOS_MEMORY_MAP BiosMemoryMap,
+ IN ULONG MaxMemoryMapSize)
+{
+ //
+ // Return whatever the board returned to us (CS0 Base + Size and FLASH0)
+ //
+ RtlCopyMemory(BiosMemoryMap,
+ ArmBoardBlock->MemoryMap,
+ ArmBoardBlock->MemoryMapEntryCount * sizeof(BIOS_MEMORY_MAP));
+ return ArmBoardBlock->MemoryMapEntryCount;
+}
+
+VOID
+MachInit(IN PCCH CommandLine)
+{
+ //
+ // Setup board-specific ARM routines
+ //
+ switch (ArmBoardBlock->BoardType)
+ {
+ //
+ // Check for Feroceon-base boards
+ //
+ case MACH_TYPE_FEROCEON:
+ TuiPrintf("Not implemented\n");
+ while (TRUE);
+ break;
+
+ //
+ // Check for ARM Versatile PB boards
+ //
+ case MACH_TYPE_VERSATILE_PB:
+
+ /* Copy Machine Routines from Firmware Table */
+ MachVtbl.ConsPutChar = ArmBoardBlock->ConsPutChar;
+ MachVtbl.ConsKbHit = ArmBoardBlock->ConsKbHit;
+ MachVtbl.ConsGetCh = ArmBoardBlock->ConsGetCh;
+ MachVtbl.VideoClearScreen = ArmBoardBlock->VideoClearScreen;
+ MachVtbl.VideoSetDisplayMode = ArmBoardBlock->VideoSetDisplayMode;
+ MachVtbl.VideoGetDisplaySize = ArmBoardBlock->VideoGetDisplaySize;
+ MachVtbl.VideoGetBufferSize = ArmBoardBlock->VideoGetBufferSize;
+ MachVtbl.VideoSetTextCursorPosition = ArmBoardBlock->VideoSetTextCursorPosition;
+ MachVtbl.VideoSetTextCursorPosition = ArmBoardBlock->VideoSetTextCursorPosition;
+ MachVtbl.VideoHideShowTextCursor = ArmBoardBlock->VideoHideShowTextCursor;
+ MachVtbl.VideoPutChar = ArmBoardBlock->VideoPutChar;
+ MachVtbl.VideoCopyOffScreenBufferToVRAM = ArmBoardBlock->VideoCopyOffScreenBufferToVRAM;
+ MachVtbl.VideoIsPaletteFixed = ArmBoardBlock->VideoIsPaletteFixed;
+ MachVtbl.VideoSetPaletteColor = ArmBoardBlock->VideoSetPaletteColor;
+ MachVtbl.VideoGetPaletteColor = ArmBoardBlock->VideoGetPaletteColor;
+ MachVtbl.VideoSync = ArmBoardBlock->VideoSync;
+
+ /* Setup the disk and file system buffers */
+ gDiskReadBuffer = 0x00090000;
+ gFileSysBuffer = 0x00090000;
+ break;
+
+ //
+ // Check for TI OMAP3 boards
+ // For now that means only Beagle, but ZOOM and others should be ok too
+ //
+ case MACH_TYPE_OMAP3_BEAGLE:
+ TuiPrintf("Not implemented\n");
+ while (TRUE);
+ break;
+
+ default:
+ ASSERT(FALSE);
+ }
+
+ //
+ // Setup generic ARM routines for all boards
+ //
+ MachVtbl.PrepareForReactOS = ArmPrepareForReactOS;
+ MachVtbl.GetMemoryMap = ArmMemGetMemoryMap;
+ MachVtbl.HwDetect = ArmHwDetect;
+
+ //
+ // Setup disk I/O routines
+ //
+ MachVtbl.DiskGetBootPath = ArmDiskGetBootPath;
+ MachVtbl.DiskNormalizeSystemPath = ArmDiskNormalizeSystemPath;
+
+ //
+ // We can now print to the console
+ //
+ TuiPrintf("%s for ARM\n", GetFreeLoaderVersionString());
+ TuiPrintf("Bootargs: %s\n\n", CommandLine);
+}
projects / reactos.git / blobdiff