Re: 2.5.74-mm1

[Wiktor Wodecki <wodecki@gmx.de>]

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On Thu, Jul 03, 2003 at 11:14:01PM +0100, Russell King wrote:
> On Thu, Jul 03, 2003 at 11:49:21PM +0200, Wiktor Wodecki wrote:
> > On Thu, Jul 03, 2003 at 03:15:29PM +0100, Russell King wrote:
> > > Ok, Wiktor has tried removing these 6 patches, and his problem persists.
> > > According to bk revtool, these 6 patches are the only changes which
> > > went in for to pcmcia from .73 to .74.
> > > 
> > > If anyone else is having similar problems, they need to report them so
> > > we can obtain more data points - I suspect some other change in some other
> > > subsystem broke PCMCIA for Wiktor.
> > > 
> > > Wiktor - short of anyone else responding, you could try reversing each
> > > of the nightly -bk patches from .74 to .73 and work out which set of
> > > changes broke it.
> > 
> > it broke with the 2.5.73-rc2 patch. I assume it was:
> 
> Ok, looking at the -bk1-bk2 incremental patch, there's a couple of
> possibilities:
> 
> - changes to the x86 PCI code
> - changes to yenta_socket.c to add different overrides
> - add burst support to yenta_socket.c for TI bridges
> - add ISA interrupt routing work-around for TI bridges
> 
> I think the number one suspect is probably the final one.  Could you try
> reversing this patch please?

gotcha, with this one reverted 2.5.73-bk2 boots up fine

> 
> diff -urN linux-2.5.73-bk1/drivers/pcmcia/ti113x.h linux-2.5.73-bk2/drivers/pcmcia/ti113x.h
> --- linux-2.5.73-bk1/drivers/pcmcia/ti113x.h	2003-06-22 11:32:41.000000000 -0700
> +++ linux-2.5.73-bk2/drivers/pcmcia/ti113x.h	2003-06-24 13:06:59.000000000 -0700
> @@ -175,6 +175,27 @@
>  	new = reg & ~I365_INTR_ENA;
>  	if (new != reg)
>  		exca_writeb(socket, I365_INTCTL, new);
> +
> +	/*
> +	 * If ISA interrupts don't work, then fall back to routing card
> +	 * interrupts to the PCI interrupt of the socket.
> +	 */
> +	if (!socket->socket.irq_mask) {
> +		int irqmux, devctl;
> +
> +		printk (KERN_INFO "ti113x: Routing card interrupts to PCI\n");
> +
> +		devctl = config_readb(socket, TI113X_DEVICE_CONTROL);
> +		devctl &= ~TI113X_DCR_IMODE_MASK;
> +
> +		irqmux = config_readl(socket, TI122X_IRQMUX);
> +		irqmux = (irqmux & ~0x0f) | 0x02; /* route INTA */
> +		irqmux = (irqmux & ~0xf0) | 0x20; /* route INTB */
> +
> +		config_writel(socket, TI122X_IRQMUX, irqmux);
> +		config_writeb(socket, TI113X_DEVICE_CONTROL, devctl);
> +	}
> +
>  	socket->socket.ss_entry->init = ti_init;
>  	return 0;
>  }
> 
> 
> 
> -- 
> Russell King (rmk@arm.linux.org.uk)                The developer of ARM Linux
>              http://www.arm.linux.org.uk/personal/aboutme.html

-- 
Regards,

Wiktor Wodecki

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