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fix for IRQs from slave controller not working on some machines

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git-svn-id: svn://kolibrios.org@1025 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
Evgeny Grechnikov (Diamond) 2009-02-08 10:40:40 +00:00
parent bb204a2689
commit cefa38b9f8
1 changed files with 3 additions and 1 deletions
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4
kernel/trunk/kernel.asm
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@ -569,7 +569,9 @@ high_code:
; Enable timer IRQ (IRQ0) and hard drives IRQs (IRQ14, IRQ15) ; Enable timer IRQ (IRQ0) and hard drives IRQs (IRQ14, IRQ15)
; they are used: when partitions are scanned, hd_read relies on timer ; they are used: when partitions are scanned, hd_read relies on timer
mov al, 0xFE ; Also enable IRQ2, because in some configurations
; IRQs from slave controller are not delivered until IRQ2 on master is enabled
mov al, 0xFA
out 0x21, al out 0x21, al
mov al, 0x3F mov al, 0x3F
out 0xA1, al out 0xA1, al