Re: Floppy disk working constantly [PATCH]

[Emmanuel Fleury <fleury@cs.auc.dk>]

Hi,

Richard B. Johnson did this patch for 2.4.22. And, I applied it and
tested it on both 2.4.22 and 2.6.0-test6. It seems to work.

Please apply this patch to both 2.4.22 and 2.6.0-test6.

-----------------
--- linux-2.4.22/arch/i386/boot/setup.S.orig    Fri Aug  2 20:39:42 2002
+++ linux-2.4.22/arch/i386/boot/setup.S Fri Oct  3 11:50:43 2003
@@ -59,6 +59,8 @@
 #define SIG1   0xAA55
 #define SIG2   0x5A5A

+FDC_MOTOR = 0x3f2
+FDC_MOTON = 0x10
 INITSEG  = DEF_INITSEG         # 0x9000, we move boot here, out of the
way
 SYSSEG   = DEF_SYSSEG          # 0x1000, system loaded at 0x10000
(65536).
 SETUPSEG = DEF_SETUPSEG                # 0x9020, this is the current
segment
@@ -776,6 +778,12 @@

        movb    $0xFB, %al                      # mask all irq's but
irq2 which
        outb    %al, $0x21                      # is cascaded
+
+       movl    $FDC_MOTOR, %edx                # FDC motor control
+       inb     %dx, %al                        # Get what's there
+       andb    $~FDC_MOTON, %al                # Reset motor bit
+       outb    %al, %dx                        # Turn OFF motor
+

 # Well, that certainly wasn't fun :-(. Hopefully it works, and we don't
 # need no steenking BIOS anyway (except for the initial loading :-).
------------

Regards
-- 
Emmanuel

`Right,' said Ford, `I'm going to have a look.'
He glanced round at the others. `Is no one going to say,
"No you can't possibly, let me go instead"?'
They all shook their heads. `Oh well.'
  -- Ford attempting to be heroic (Douglas Adams)