Re: [Qemu-devel] PreP kernels boot using Qemu

[Aurelien Jarno <aurelien@aurel32.net>]

Rob Landley a écrit :
> On Saturday 27 October 2007 3:07:05 am Aurelien Jarno wrote:
>> Rob Landley a écrit :
>>> On Monday 22 October 2007 11:28:10 am Aurelien Jarno wrote:
>>>> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
>>>>
>>>> diff --git a/arch/ppc/syslib/i8259.c b/arch/ppc/syslib/i8259.c
>>>> index 1e5a00a..559f27c 100644
>>>> --- a/arch/ppc/syslib/i8259.c
>>>> +++ b/arch/ppc/syslib/i8259.c
>>>> @@ -127,6 +127,7 @@ static void i8259_unmask_irq(unsigned int irq_nr)
>>>>  static struct irq_chip i8259_pic = {
>>>>  	.typename	= " i8259    ",
>>>>  	.mask		= i8259_mask_irq,
>>>> +	.disable	= i8259_mask_irq,
>>>>  	.unmask		= i8259_unmask_irq,
>>>>  	.mask_ack	= i8259_mask_and_ack_irq,
>>>>  };
>>> Using mdm's qemu target platform and the 4k bios that supplies a device
>>> tree, I applied this but it didn't make any difference in the ne2k-pci
>>> adapter (not that I noticed).  It still doesn't bind to anything during
>>> bootup.  (There's no eth0.)
>> You need this patch to get the *ISA* NE2000 card working, the PCI one
>> still doesn't work.
> 
> Hmmm, Milton's ppc_qemu patch forgot to add PPC_QEMU to the ISA dependency 
> list along with PREP and CHRP.  Let's see, patch that, switch on the config 
> symbol, build in that driver and...  Nope:
> 
>> ne.c:v1.10 9/23/94 Donald Becker (becker@scyld.com)
>> Last modified Nov 1, 2000 by Paul Gortmaker
>> NE*000 ethercard probe at 0x300: failed to detect IRQ line.
> 
> I still have no eth0.

You have to build the NE2000 driver as a module, and pass irq=9 io=0x300
when loading it.

> I just confirmed that arch/powerpc/sysdev/i8259.c has:
> static struct irq_chip i8259_pic = {
>         .typename       = " i8259    ",
>         .mask           = i8259_mask_irq,
>         .disable        = i8259_mask_irq,
>         .unmask         = i8259_unmask_irq,
>         .mask_ack       = i8259_mask_and_ack_irq,
> };
> 
> Since your patch was to /arch/ppc instead...
> 

I have posted two patches, one for ppc and one for powerpc. I have send
both of them upstream

-- 
  .''`.  Aurelien Jarno	            | GPG: 1024D/F1BCDB73
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