Date: Wed, 12 Apr 2006 18:32:54 GMT From: Brian McGovern <mcgovern@beta.com> To: freebsd-gnats-submit@FreeBSD.org Subject: kern/95661: pci_pci still not correct for initializing cardbus on HP AMD laptop Message-ID: <200604121832.k3CIWsFq042801@www.freebsd.org> Resent-Message-ID: <200604121840.k3CIeFvn083118@freefall.freebsd.org>
next in thread | raw e-mail | index | archive | help
>Number: 95661
>Category: kern
>Synopsis: pci_pci still not correct for initializing cardbus on HP AMD laptop
>Confidential: no
>Severity: serious
>Priority: high
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Wed Apr 12 18:40:15 GMT 2006
>Closed-Date:
>Last-Modified:
>Originator: Brian McGovern
>Release: 6.1-RC1
>Organization:
>Environment:
FreeBSD bmcgover-hp-laptop 6.1-RC1 FreeBSD 6.1-RC1 #1: Wed Apr 12 14:27:07 EDT 2006 root@bmcgover-hp-laptop:/usr/src/sys/i386/compile/LAPTOP i386
>Description:
The BIOS on the system sets the wrong subordinate bus number (see patch). This causes cardbus cards not to be detected/attached properly on boot, or when inserted.
>How-To-Repeat:
Boot 6.1-RC1 kernel, insert cardbus card (e.g. Netgear WG511T)
>Fix:
Jung-uk Kim sent me the following patch based on 6.0-RELEASE that fixes the problem. It also appears to apply cleanly to 6.1-RC1.
Index: pci_pci.c
===================================================================
RCS file: /home/ncvs/src/sys/dev/pci/pci_pci.c,v
retrieving revision 1.37
diff -u -r1.37 pci_pci.c
--- pci_pci.c 29 Apr 2005 06:22:41 -0000 1.37
+++ pci_pci.c 11 Oct 2005 01:58:00 -0000
@@ -186,6 +186,14 @@
case 0x060513d7: /* Toshiba ???? */
sc->flags |= PCIB_SUBTRACTIVE;
break;
+
+ /* Compaq R3000 BIOS sets wrong subordinate bus number. */
+ case 0x00dd10de:
+ if (sc->subbus < 0xa) {
+ pci_write_config(dev, PCIR_SUBBUS_1, 0xa, 1);
+ sc->subbus = pci_read_config(dev, PCIR_SUBBUS_1, 1);
+ }
+ break;
}
/*
>Release-Note:
>Audit-Trail:
>Unformatted:
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200604121832.k3CIWsFq042801>