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sparc64 address-congruence property

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The Machine Description (MD) property "address-congruence-offset" is
optional. According to the MD specification the value is assumed 0UL when
not present. This caused early boot failure on T5.

Signed-off-by: Bob Picco <bob.picco@oracle.com>
CC: sparclinux@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
bob picco 2013-06-11 14:54:51 -04:00 committed by David S. Miller
parent d72ee6be58
commit 771a37ff4d
1 changed files with 8 additions and 1 deletions
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9
arch/sparc/mm/init_64.c
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@ -1098,7 +1098,14 @@ static int __init grab_mblocks(struct mdesc_handle *md)
m->size = *val;
val = mdesc_get_property(md, node,
"address-congruence-offset", NULL);
m->offset = *val;
/* The address-congruence-offset property is optional.
* Explicity zero it be identifty this.
*/
if (val)
m->offset = *val;
else
m->offset = 0UL;
numadbg("MBLOCK[%d]: base[%llx] size[%llx] offset[%llx]\n",
count - 1, m->base, m->size, m->offset);