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We now enable ramdisk support by calling RamDiskSwitchFromBios() to allow the ramdisk routines to take control of disk r/w.

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Unlike the x86 virtual-ramdisk, the ramdisk here is also used as boot device, not only system device.
Current FreeLDR output:
    Booting FreeLDR...
    FreeLoader v3.0 for ARM
    Bootargs: rdbase=0x2000000 rdsize=0x1400000
    This file system has cluster sizes bigger than 64k.
    FreeLoader does not support this.
    Press any key


svn path=/trunk/; revision=32169
This commit is contained in:
ReactOS Portable Systems Group 2008-02-06 19:15:46 +00:00
parent 5a83b091b5
commit 336ca7d838
1 changed files with 16 additions and 3 deletions
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19
reactos/boot/freeldr/freeldr/arch/arm/stubs.c
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@ -35,10 +35,23 @@ ArmDiskGetBootVolume(IN PULONG DriveNumber,
// //
ASSERT(gRamDiskBase); ASSERT(gRamDiskBase);
ASSERT(gRamDiskSize); ASSERT(gRamDiskSize);
//
// Use magic ramdisk drive number and count the number of 512-byte sectors
//
*DriveNumber = 0x49; *DriveNumber = 0x49;
*StartSector = 0; *StartSector = 0;
*SectorCount = gRamDiskSize * 512; *SectorCount = gRamDiskSize * 512;
//
// Ramdisk support is FAT-only for now
//
*FsType = FS_FAT; *FsType = FS_FAT;
//
// Now that ramdisk is enabled, use ramdisk routines
//
RamDiskSwitchFromBios();
return TRUE; return TRUE;
} }
@ -88,7 +101,7 @@ BOOLEAN
ArmDiskGetDriveGeometry(IN ULONG DriveNumber, ArmDiskGetDriveGeometry(IN ULONG DriveNumber,
OUT PGEOMETRY Geometry) OUT PGEOMETRY Geometry)
{ {
while (TRUE); ASSERT(FALSE);
return FALSE; return FALSE;
} }
@ -107,14 +120,14 @@ ArmDiskReadLogicalSectors(IN ULONG DriveNumber,
IN ULONG SectorCount, IN ULONG SectorCount,
IN PVOID Buffer) IN PVOID Buffer)
{ {
while (TRUE); ASSERT(FALSE);
return FALSE; return FALSE;
} }
ULONG ULONG
ArmDiskGetCacheableBlockCount(IN ULONG DriveNumber) ArmDiskGetCacheableBlockCount(IN ULONG DriveNumber)
{ {
while (TRUE); ASSERT(FALSE);
return FALSE; return FALSE;
} }