diff options
| author | Mark Kettenis <kettenis@cvs.openbsd.org> | 2006-02-26 20:39:17 +0000 |
|---|---|---|
| committer | Mark Kettenis <kettenis@cvs.openbsd.org> | 2006-02-26 20:39:17 +0000 |
| commit | 82beb2cf97d8e7b5cbd578e477548be4e076f0ff (patch) | |
| tree | f8791233e0cfb8e0b9debe54f41678fa13a1ae76 /sys/dev/pci | |
| parent | d6dd35175ccaf56a6ee14443cff56e0a9de5c026 (diff) | |
Disable alipm(4) on sparc64 if not running at the recommended 74KHz clock, to
avoid data_access_error exceptions.
ok deraadt@
Diffstat (limited to 'sys/dev/pci')
| -rw-r--r-- | sys/dev/pci/alipm.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/sys/dev/pci/alipm.c b/sys/dev/pci/alipm.c index 56265ed6314..ef362351b88 100644 --- a/sys/dev/pci/alipm.c +++ b/sys/dev/pci/alipm.c @@ -1,4 +1,4 @@ -/* $OpenBSD: alipm.c,v 1.7 2006/02/09 12:16:25 dlg Exp $ */ +/* $OpenBSD: alipm.c,v 1.8 2006/02/26 20:39:16 kettenis Exp $ */ /* * Copyright (c) 2005 Mark Kettenis @@ -207,6 +207,19 @@ alipm_attach(struct device *parent, struct device *self, void *aux) break; } +#ifdef __sparc64__ + /* + * XXX We get data_access_error exceptions on Blade 100 and + * Blade 150 machines with 233KHz clock. We should + * investigate wether changing the clock speed to 74KHz fixes + * the problem. + */ + if ((reg & ALIPM_SMB_HOSTC_CLOCK) != ALIPM_SMB_HOSTC_74K) { + printf(", disabling to avoid hardware failure\n"); + return; + } +#endif + printf("\n"); /* Attach I2C bus */ |