From: Kevin O'Connor <kevin@koconnor.net>
Date: Fri, 27 Dec 2013 18:34:55 +0000 (-0500)
Subject: xhci: Use 64bit writes to ERDP register.
X-Git-Tag: rel-1.7.5-rc1~67
X-Git-Url: http://xenbits.xensource.com/gitweb?a=commitdiff_plain;h=6bdc59fbca7e9279023aecde6c6b1c2a3fab152c;p=seabios.git

xhci: Use 64bit writes to ERDP register.

At least some real-world XHCI controllers expect a 64bit write to the
ERDP register.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
---

diff --git a/src/hw/usb-xhci.c b/src/hw/usb-xhci.c
index dc98e5d..d0df6ee 100644
--- a/src/hw/usb-xhci.c
+++ b/src/hw/usb-xhci.c
@@ -379,6 +379,7 @@ static void xhci_process_events(struct usb_xhci_s *xhci)
         u32 addr = (u32)(&ir->erdp_low);
         u32 erdp = (u32)(evts->ring + nidx);
         pci_writel(addr, erdp);
+        pci_writel((u32)(&ir->erdp_high), 0);
     }
 }