>Number: 120017
>Category: usb
>Synopsis: CS5536 (AMD Geode) USB 2.0 quirk
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: freebsd-usb
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Sat Jan 26 20:10:02 UTC 2008
>Closed-Date:
>Last-Modified:
>Originator: Ivan Voras
>Release: 7-STABLE
>Organization:
>Environment:
FreeBSD ursaminor.cosmos 7.0-PRERELEASE FreeBSD 7.0-PRERELEASE #3: Fri Jan 25
00:20:32 CET 2008 [EMAIL PROTECTED]:/usr/obj/usr/src/sys/URSAMINOR i386
>Description:
A quirk has to be made so USB 2.0 (EHCI) works on CS5536 (embedded AMD Geode
companion chip) controller.
>How-To-Repeat:
Boot FreeBSD 7 or 8 on a suitable machine (e.g. fit-pc), observe the message
"ehci0: pre-2.0 USB rev".
>Fix:
Patch supplied.
Patch attached with submission follows:
--- patch.txt begins here ---
--- usb_/ehci_pci.c 2008-01-26 18:42:11.000000000 +0100
+++ usb/ehci_pci.c 2008-01-26 18:50:20.000000000 +0100
@@ -99,6 +99,8 @@
/* AMD */
#define PCI_EHCI_DEVICEID_8111 0x10227463
static const char *ehci_device_8111 = "AMD 8111 USB 2.0 controller";
+#define PCI_EHCI_DEVICEID_CS5536 0x20951022
+static const char *ehci_device_cs5536 = "AMD CS5536 (Geode) USB 2.0
controller";
/* ATI */
#define PCI_EHCI_DEVICEID_SB200 0x43451002
@@ -214,6 +216,8 @@
return (ehci_device_m5239);
case PCI_EHCI_DEVICEID_8111:
return (ehci_device_8111);
+ case PCI_EHCI_DEVICEID_CS5536:
+ return (ehci_device_cs5536);
case PCI_EHCI_DEVICEID_SB200:
return (ehci_device_sb200);
case PCI_EHCI_DEVICEID_SB400:
@@ -293,6 +297,10 @@
case PCI_USBREV_1_1:
sc->sc_bus.usbrev = USBREV_UNKNOWN;
device_printf(self, "pre-2.0 USB rev\n");
+ if (pci_get_devid(self) == PCI_EHCI_DEVICEID_CS5536) {
+ device_printf(self, "Quirk for CS5536 USB 2.0
enabled\n");
+ break;
+ }
return ENXIO;
case PCI_USBREV_2_0:
sc->sc_bus.usbrev = USBREV_2_0;
--- patch.txt ends here ---
>Release-Note:
>Audit-Trail:
>Unformatted:
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