Re: HP6xx kernel panic at bootup

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

Greetings,

I've changed the code to use MMIO instead.
.start 0xb5000000 + 0x1f0
.end  0xb5000000 + 0x1f7

and

.start 0xb50001fe
.end 0xb50001ff

with MEM instead of IO.

It now detects the ATA1 properly, but goes into an endles loop with :
ata1: soft resetting port
ata1.00 : configured for PIO         <--- ???
ata1 : EH complete
ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen
ata1.00: cmd 20/00:08:00:00:00/00:00:00:00:00/e0 tag 0 cdb 0x0 data 4096 in
               res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
ata1: soft resetting port

Suggestions?

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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