Re: HP6xx kernel panic at bootup

[Paul M. <le...@li...>]

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?