I just tried the above patch and the warning doesn't show up at boot
anymore. I tried unplugging and plugging in a flash drive / keyboard and
saw no issues in dmesg.
I mentioned it in a previous email, but just as a friendly reminder this
patch is still needed to allow you to boot with a disabled FIQ:
diff --git a/drivers/usb/host/dwc_otg/dwc_otg_hcd_intr.c
b/drivers/usb/host/dwc_otg/dwc_otg_hcd_intr.c
index 19abea0..78172ea 100644
--- a/drivers/usb/host/dwc_otg/dwc_otg_hcd_intr.c
+++ b/drivers/usb/host/dwc_otg/dwc_otg_hcd_intr.c
@@ -742,8 +742,10 @@ int32_t dwc_otg_hcd_handle_sof_intr(dwc_otg_hcd_t *
hcd)
}
/* Clear interrupt */
- //gintsts.b.sofintr = 1;
- //DWC_WRITE_REG32(&hcd->core_if->core_global_regs->gintsts,
gintsts.d32);
+ if (!fiq_fix_enable) {
+ gintsts.b.sofintr = 1;
+ DWC_WRITE_REG32(&hcd->core_if->core_global_regs->gintsts,
gintsts.d32);
+ }
return 1;
}
On Tue, Feb 25, 2014 at 4:31 PM, Gilles Chanteperdrix <
[email protected]> wrote:
> On 02/25/2014 10:09 PM, Gregory Dymarek wrote:
> > So the frame freeze I got on my version is on line 145 in here:
> > https://github.com/raspberrypi/linux/blob/rpi-3.8.y/kernel/irq/handle.c
> >
> > The dwc_otg_hcd_handle_intr is here:
> >
> https://github.com/raspberrypi/linux/blob/rpi-3.8.y/drivers/usb/host/dwc_otg/dwc_otg_hcd_intr.c
> >
> >
> > Is the line 523 the problem?
> > local_fiq_enable();
>
> Please try the following patch:
>
> diff --git a/arch/arm/include/asm/ipipe_hwirq.h
> b/arch/arm/include/asm/ipipe_hwirq.h
> index 6b864aa..bd8cda1 100644
> --- a/arch/arm/include/asm/ipipe_hwirq.h
> +++ b/arch/arm/include/asm/ipipe_hwirq.h
> @@ -200,9 +200,9 @@ static inline void hard_local_irq_restore(unsigned
> long x)
> ipipe_unstall_root(); \
> } while (0)
>
> -#define local_fiq_enable() ipipe_unstall_root()
> +#define local_fiq_enable() hard_local_fiq_enable_notrace()
>
> -#define local_fiq_disable() ipipe_stall_root()
> +#define local_fiq_disable() hard_local_fiq_disable_notrace()
>
> #define arch_local_irq_restore(flags) \
> do { \
>
>
> --
> Gilles.
>
> _______________________________________________
> Xenomai mailing list
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> http://www.xenomai.org/mailman/listinfo/xenomai
>
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