Intel IM-Q35 Series User Manual
Page 65
IM-Q35 Mainboard
4-4
Bootblock Recovery Code Checkpoints
Ch eckp oin t
Descrip tion
E0
I nitialize t he flop py controlle r in the su per I/O. Som e int errupt vectors
are initialized. DMA controller is in itialized. 825 9 interrupt controller is
initia lize d. L 1 cache is en abled.
E9
Set up f loppy c ontroller a nd data. Att empt to r ead f rom flopp y.
EA
Ena ble AT API hard ware. Att empt to read from ARMD and ATA PI
CDROM.
EB
Disable A TAPI h ardware. Ju mp back t o checkpoint E9.
EF
Read error occurred on med ia. Ju mp b ack to checkpoint EB .
F0
Search f or pre-defin ed recovery file n ame in root directory.
F1
Recove ry f ile not f oun d.
F2
Start reading FAT tab le a nd ana lyze FAT t o f ind th e clusters occupied
by th e reco very file.
F3
Start re adin g th e recovery file clust er b y cluste r.
F5
Disable L1 cache.
FA
Check the validit y of t he r ecover y f ile conf iguration t o the current
conf igu ration of th e flash part.
FB
Make f lash writ e enable d th rough chipset and OEM sp ecific met hod.
Detect prop er flash pa rt. V er if y th at th e fou nd f lash p art size equals th e
r eco very file size.
F4
T he recovery file size does n ot eq ual th e found flash part size.
FC
Erase th e flash pa rt.
FD
Program th e flash part.
FF
T he flash has been u pd ated successf ully. Make flash writ e d isabled.
Disable AT API h ard ware. R est ore CPUID value back int o regist er.
Give control to F0 00 ROM at F000: FFF0h.
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