PERFORCE change 148417 for review

[Marius Strobl]

http://perforce.freebsd.org/chv.cgi?CH=148417

Change 148417 by marius at flak on 2008/08/25 18:35:31

	Annotate with Tomatillo revisions.

Affected files ...

.. //depot/projects/usiii/sparc64/pci/schizo.c#11 edit

Differences ...

==== //depot/projects/usiii/sparc64/pci/schizo.c#11 (text+ko) ====

@@ -354,7 +354,7 @@
 		reg |= STX_PCI_CTRL_ARB_PARK;
 	if (mode == SCHIZO_MODE_TOM) {
 		reg |= TOM_PCI_CTRL_PRM | TOM_PCI_CTRL_PRO | TOM_PCI_CTRL_PRL;
-		if (sc->sc_ver <= 1)
+		if (sc->sc_ver <= 1)	/* revision <= 2.0 */
 			reg |= TOM_PCI_CTRL_DTO_IEN;
 		else
 			reg |= STX_PCI_CTRL_PTO;
@@ -964,8 +964,8 @@
 			panic("%s: DMA does not sync", __func__);
 
 	/*
-	 * Tomatillo version <= 4 bridges additionally need a block
-	 * store as a workaround for a hardware bug.
+	 * Tomatillo revision <= 2.3 (i.e. version <= 4) bridges also
+	 *  need a block store as a workaround for a hardware bug.
 	 */
 	if (sc->sc_mode == SCHIZO_MODE_TOM && sc->sc_ver <= 4) {
 		critical_enter();