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    SubjectRe: 2.5.74-mm1
    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?

    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

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