Re: HP6xx kernel panic at bootup

[Kristoffer E. <kri...@ho...>]

Greetings,

I've made io.c more or less obselete. And just using the generic mv_ it 
works like it did before. No luck booting from CF card though, still getting 
frozen/timeouts. It feels like its unable to communicate with the CF card 
aside from obtaining id,size information. The first error states that its 
unable to detect partitions.

Getting this when __irq_demux isnt defined in irq.h
arch/sh/cchips/hd6446x/hd64461/built-in.o(.text+0x22c): In function 
`hd64461_irq_demux':
: undefined reference to `__irq_demux'

At compile I get this message
arch/sh/cchips/hd6446x/hd64461/setup.c: In function `hd64461_irq_demux':
arch/sh/cchips/hd6446x/hd64461/setup.c:125: warning: implicit declaration of 
function `__irq_demux'

which in turn comes from this line.
return __irq_demux(irq);

Replacing with hd64461_irq_demux(irq) works just fine.

Best wishes
Kristoffer

>From: Paul Mundt <le...@li...>
>To: Kristoffer Ericson <kri...@ho...>
>CC: lin...@li...
>Subject: Re: HP6xx kernel panic at bootup
>Date: Tue, 13 Mar 2007 08:37:07 +0900
>
>On Mon, Mar 12, 2007 at 08:49:00PM +0000, Kristoffer Ericson wrote:
> > The only part of the Kernel panic I can see is just the data dump, which
> > doesnt help you much. (adresses running from 1c80: -> 1fe0).
> >
> > I believe its somehow related to the PATA driver, but hard to be sure.
> >
>Yes, you should be using the MMIO address, the problem is that you're
>using the PIO address and it's completely unhandled by your I/O routines.
>
> > +static struct resource cf_ide_resources[] = {
> > +              [0] = {
> > +	              .start = 0x1f0,
> > +		      .end   = 0x1f0 + 8,
> > +		      .flags = IORESOURCE_IO,
> > +		      },
> > +	      [1] = {
> > +	              .start = 0x3f6,
> > +		      .end   = 0x3f7,
> > +		      .flags = IORESOURCE_IO,
> > +		    },
>
>So change these to the MMIO address, and switch to IORESOURCE_MEM.
>
> > +static int __init hp6xx_devices_setup(void)
> > +{
> > + return platform_add_devices(hp6xx_devices,ARRAY_SIZE(hp6xx_devices));
> > +}
> > +
> > static void __init hp6xx_setup(char **cmdline_p)
> > {
> > 	u8 v8;
> > 	u16 v;
> >
> > +        device_initcall(hp6xx_devices_setup);
> > +
>
>Move this after hp6xx_devices_setup().
>
> > diff --git a/include/asm-sh/irq.h b/include/asm-sh/irq.h
> > index 29d4fb9..eaf77fe 100644
> > --- a/include/asm-sh/irq.h
> > +++ b/include/asm-sh/irq.h
> > @@ -190,7 +190,7 @@ static inline int generic_irq_demux(int
> >
> > #define irq_canonicalize(irq)	(irq)
> > #define irq_demux(irq)		sh_mv.mv_irq_demux(irq)
> > -
> > +#define __irq_demux(irq)        (irq)
> > #ifdef CONFIG_4KSTACKS
> > extern void irq_ctx_init(int cpu);
> > extern void irq_ctx_exit(int cpu);
> >
>What is using this?

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