On Thu, Mar 31, 2005 at 01:47:30PM -0700, Dale Farnsworth wrote:
[snip]
> ===================================================================
> --- linux-2.5-usb-405.orig/arch/ppc/platforms/4xx/redwood5.c
> +++ linux-2.5-usb-405/arch/ppc/platforms/4xx/redwood5.c
> @@ -52,8 +52,18 @@
> void __init
> redwood5_setup_arch(void)
> {
> + u32 mask;
> +
> ppc4xx_setup_arch();
>
> + /*
> + * Set up USB interrupt as positive polarity and level-sensitive.
> + * Firmware should do this, but apparently does not.
> + */
> + mask = 1 << (31 - USB0_IRQ);
> + mtdcr(DCRN_UIC_PR(UIC0), mfdcr(DCRN_UIC_PR(UIC0)) | mask);
> + mtdcr(DCRN_UIC_TR(UIC0), mfdcr(DCRN_UIC_TR(UIC0)) & ~mask);
> +
> #ifdef CONFIG_DEBUG_BRINGUP
> printk("\n");
> printk("machine\t: %s\n", PPC4xx_MACHINE_NAME);
Dale, please, don't mess with UIC registers directly, there is a
cleaner way to set this up.
Take a look at how this is done in other 4xx ports
(ppc4xx_core_uic_cfg & ppc4xx_uic_ext_irq_cfg).
--
Eugene
