return translation;
}
- // On COREBOOT, use a heuristic to determine translation type.
+ // Otherwise use a heuristic to determine translation type.
u16 heads = GET_GLOBAL(drive_g->pchs.heads);
u16 cylinders = GET_GLOBAL(drive_g->pchs.cylinders);
u16 spt = GET_GLOBAL(drive_g->pchs.spt);
+ u64 sectors = GET_GLOBAL(drive_g->sectors);
+ u64 psectors = (u64)heads * cylinders * spt;
+ if (!heads || !cylinders || !spt || psectors > sectors)
+ // pchs doesn't look valid - use LBA.
+ return TRANSLATION_LBA;
if (cylinders <= 1024 && heads <= 16 && spt <= 63)
return TRANSLATION_NONE;
u8 translation = get_translation(drive_g);
SET_GLOBAL(drive_g->translation, translation);
- u8 ataid = GET_GLOBAL(drive_g->cntl_id);
- u8 channel = ataid / 2;
- u8 slave = ataid % 2;
u16 heads = GET_GLOBAL(drive_g->pchs.heads);
u16 cylinders = GET_GLOBAL(drive_g->pchs.cylinders);
u16 spt = GET_GLOBAL(drive_g->pchs.spt);
// clip to 1024 cylinders in lchs
if (cylinders > 1024)
cylinders = 1024;
- dprintf(1, "ata%d-%d: PCHS=%u/%d/%d translation=%s LCHS=%d/%d/%d\n"
- , channel, slave
+ dprintf(1, "drive %p: PCHS=%u/%d/%d translation=%s LCHS=%d/%d/%d s=%d\n"
+ , drive_g
, drive_g->pchs.cylinders, drive_g->pchs.heads, drive_g->pchs.spt
, desc
- , cylinders, heads, spt);
+ , cylinders, heads, spt
+ , (u32)sectors);
SET_GLOBAL(drive_g->lchs.heads, heads);
SET_GLOBAL(drive_g->lchs.cylinders, cylinders);