ohci: Add missing cache-flush for hcca area

We need to cache-flush the hcca area after the initial memset, otherwise on the first hc_interrupt we might see an old $random value as done_head and try to interpret that as the address for a completed td (followed by chaos).

---
 drivers/usb/host/ohci-hcd.c | 1 +
 1 file changed, 1 insertion(+)

index 9bde2b2..ccbfc02 100644
@@ -2205,6 +2205,7 @@ int ohci_register(struct udevice *dev, struct ohci_regs *regs)
 	if (!ohci->hcca)
 		return -ENOMEM;
 	memset(ohci->hcca, 0, sizeof(struct ohci_hcca));
+	flush_dcache_hcca(ohci->hcca);
 
 	if (hc_reset(ohci) < 0)
 		return -EIO;

2.5.0

Dang, this came three hours after the release of 2015.10 ;-)

Oh well. Applied, thanks!