Aren
/
NetBSD
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

On the first read of the DEVCONFIG PCI config register, sparc64 systems 

seem to return all 1s. The second read is ok, though. So, as a workaround,
read it twice. From Manuel Bouyer.
This commit is contained in:
fvdl 2003-04-25 16:02:52 +00:00
parent 3ba2d8197a
commit 5aecd7c8fc
1 changed files with 7 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
sys/dev/pci/ahc_pci.c
View File

@ -39,7 +39,7 @@
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGES.
*
* $Id: ahc_pci.c,v 1.39 2003/04/19 19:34:23 fvdl Exp $
* $Id: ahc_pci.c,v 1.40 2003/04/25 16:02:52 fvdl Exp $
*
* //depot/aic7xxx/aic7xxx/aic7xxx_pci.c#57 $
*
@ -852,6 +852,12 @@ ahc_pci_attach(parent, self, aux)
*/
ahc_intr_enable(ahc, FALSE);
/*
* XXX somehow reading this once fails on some sparc64 systems.
* This may be a problem in the sparc64 PCI code. Doing it
* twice works around it.
*/
devconfig = pci_conf_read(pa->pa_pc, pa->pa_tag, DEVCONFIG);
devconfig = pci_conf_read(pa->pa_pc, pa->pa_tag, DEVCONFIG);
/*