Date: 22 Mar 2000 06:39:12 +0100 From: Dag-Erling Smorgrav <des@flood.ping.uio.no> To: hackers@freebsd.org Subject: IBM Netfinity 5600 Message-ID: <xzpbt47a7i7.fsf@flood.ping.uio.no>
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The following patch adds support for the host to pci bridge on IBM's
new Netfinity 5600. It's based on the 3.4-RELEASE code, I don't know
if it'll apply to 4.0 or 5.0. It's also quite a hack; I guess what
you'd really want to do is either use NBUS instead of 2, or extract
some kind of "correct" value from the chipset. Also, I have no idea
what the chipset's real name is.
Without the patch, the second (64-bit) PCI bus will not work, which is
kind of a bummer since the first (32-bit) PCI bus only has two slots.
For the curious, this was hacked up and tested on Netfinity 5600
assembly no. 52, which we have on loan from IBM to replace two downed
servers (the disk enclosure died on us - never buy Trimm again!). It's
a lovely little thang, I'd absolutely *love* to have a truckload of
them in my server room...
Kudos to Zippy for pointing us in the right direction.
Index: pcisupport.c
===================================================================
RCS file: /home/ncvs/src/sys/pci/pcisupport.c,v
retrieving revision 1.86.2.13
diff -u -r1.86.2.13 pcisupport.c
--- pcisupport.c 1999/11/01 22:48:34 1.86.2.13
+++ pcisupport.c 2000/03/22 05:30:07
@@ -233,8 +233,14 @@
}
#endif
}
-
+/* Hackety-hack-hack */
+static void
+fixbushigh_nf5600(pcici_t tag)
+{
+ tag->secondarybus = tag->subordinatebus = 2;
+}
+
static const char*
chipset_probe (pcici_t tag, pcidi_t type)
{
@@ -242,6 +248,10 @@
char *descr;
switch (type) {
+ /* IBM Netfinity 5600 */
+ case 0x00091166:
+ fixbushigh_nf5600(tag);
+ return ("IBM Netfinity 5600 host to PCI bridge");
/* Intel -- vendor 0x8086 */
case 0x00088086:
/* Silently ignore this one! What is it, anyway ??? */
DES (half past six aye emm, still at work...)
--
Dag-Erling Smorgrav - des@flood.ping.uio.no
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