--- zzzz-none-000/linux-2.6.28.10/drivers/usb/host/ehci-hub.c	2009-05-02 18:54:43.000000000 +0000
+++ puma5-6360-529/linux-2.6.28.10/drivers/usb/host/ehci-hub.c	2011-08-02 08:41:15.000000000 +0000
@@ -713,6 +713,26 @@
 			status |= 1 << USB_PORT_FEAT_C_RESET;
 			ehci->reset_done [wIndex] = 0;
 
+#ifdef CONFIG_FUSIV_VX180
+			/* == AVM/WK 20110801 FIX: improved PEC Error prevention   ==
+			**		               do very short PHY reset during USB reset **
+ 			** - (works for Brother Printers, too)
+ 			*/
+			{
+				int val = *((volatile int *)0xb90000dc);
+
+				// Reinit Phy Port 
+				val |= ((wIndex == 0) ?  0x00000010: 0x00000020);
+				*((volatile int *)0xb90000dc) = val;
+
+				udelay(200);
+
+				val &= ~((wIndex == 0) ? 0x00000010: 0x00000020);
+
+				*((volatile int *)0xb90000dc) = val;
+				udelay(500);
+			}
+#endif
 			/* force reset to complete */
 			ehci_writel(ehci, temp & ~(PORT_RWC_BITS | PORT_RESET),
 					status_reg);
@@ -727,6 +747,51 @@
 				goto error;
 			}
 
+#ifdef CONFIG_FUSIV_VX180
+			/* == AVM/WK 20110601 improved Workaround for Ikanos VX180 ==
+			* Phy reinit recovers from PEC error
+			* Will retry USB reset
+			*/
+			msleep(5);
+			{
+				unsigned temp2 = ehci_readl (ehci, status_reg);
+				if (temp2 & PORT_PEC) {
+					int val = *((volatile int *)0xb90000dc);
+
+					temp = ehci_readl (ehci, status_reg);
+					ehci_err (ehci, "AVM EHCI PEC Recovery for port %d, val %x\n", (wIndex + 1), temp);
+
+					/* Reinit Phy Port */
+					val &= ~((wIndex == 0) ? 0x00000002: 0x00000004);
+					*((volatile int *)0xb90000dc) = val;
+					msleep(5);
+
+					val |= ((wIndex == 0) ?  0x00000010: 0x00000020);
+					*((volatile int *)0xb90000dc) = val;
+					msleep(50);
+
+					val &= ~((wIndex == 0) ? 0x00000010: 0x00000020);
+					*((volatile int *)0xb90000dc) = val;
+					msleep(50);
+
+					val |= ((wIndex == 0) ?  0x00000002: 0x00000004);
+					*((volatile int *)0xb90000dc) = val;
+					msleep(5);
+
+					ehci_writel(ehci, PORT_PEC|(temp2 & ~(PORT_RWC_BITS)), status_reg);
+
+					/* let's repeat USB reset */
+					goto error;
+				}
+				/* == AVM/WK 20110601 FIX: Handle spurious disconnects ==*/
+				if ((temp2 & (PORT_CSC|PORT_CONNECT)) == (PORT_CSC|PORT_CONNECT)) {
+					ehci_err (ehci, "AVM EHCI spurious disconnect after reset port %d, val %x\n", (wIndex + 1), temp2);
+					/* let's repeat USB reset */
+					ehci_writel(ehci, PORT_CSC|(temp2 & ~(PORT_RWC_BITS)), status_reg);
+					goto error;
+				}
+			}
+#endif
 			/* see what we found out */
 			temp = check_reset_complete (ehci, wIndex, status_reg,
 					ehci_readl(ehci, status_reg));