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authormarcel <marcel@FreeBSD.org>2006-04-27 04:53:18 +0000
committermarcel <marcel@FreeBSD.org>2006-04-27 04:53:18 +0000
commit3f80cf7f437d30b42728ffd142b4bef840fa2881 (patch)
treea05893996312945000ca541017afdd0a02a4ebca /sys/dev/pci
parentc2110a62a2fdffa6158d62f603418c8a17d58b9f (diff)
downloadFreeBSD-src-3f80cf7f437d30b42728ffd142b4bef840fa2881.zip
FreeBSD-src-3f80cf7f437d30b42728ffd142b4bef840fa2881.tar.gz
The size of I/O ranges can be anything from 16 bytes to 2G bytes.
Lower the minimum for memory mapped I/O from 32 bytes to 16 bytes. This fixes bus enumeration on ia64 now that the Diva auxiliary serial port is attached to.
Diffstat (limited to 'sys/dev/pci')
-rw-r--r--sys/dev/pci/pci.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/sys/dev/pci/pci.c b/sys/dev/pci/pci.c
index 08fd995..c51db37 100644
--- a/sys/dev/pci/pci.c
+++ b/sys/dev/pci/pci.c
@@ -860,12 +860,12 @@ pci_add_map(device_t pcib, device_t bus, device_t dev,
* isn't clear, we know we have a BAR that doesn't conform to the
* spec, so ignore it. Also, sanity check the size of the data
* areas to the type of memory involved. Memory must be at least
- * 32 bytes in size, while I/O ranges must be at least 4.
+ * 16 bytes in size, while I/O ranges must be at least 4.
*/
if ((testval & 0x1) == 0x1 &&
(testval & 0x2) != 0)
return (barlen);
- if ((type == SYS_RES_MEMORY && ln2size < 5) ||
+ if ((type == SYS_RES_MEMORY && ln2size < 4) ||
(type == SYS_RES_IOPORT && ln2size < 2))
return (barlen);
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