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Do as the comment suggests and determine the bus space based on the last

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bus we actually mapped at rather than always based on the last bus we
encountered while moving upward in the tree. Otherwise we might use the
wrong bus space in case the bridge directly underneath the nexus doesn't
require mapping, i.e. was skipped as it's the case for ssm(4) nodes.
This commit is contained in:
Marius Strobl 2010-04-10 10:44:41 +00:00
parent b4ab02b842
commit 15edea2038
1 changed files with 5 additions and 8 deletions
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13
sys/sparc64/sparc64/ofw_machdep.c
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@ -186,13 +186,10 @@ OF_decode_addr(phandle_t node, int bank, int *space, bus_addr_t *addr)
name[sizeof(name) - 1] = '\0';
goto skip;
}
if (lbus != bus) {
if (OF_getprop(bus, "#size-cells", &szc,
sizeof(szc)) == -1)
szc = 1;
if (szc < 1 || szc > 2)
return (ENXIO);
}
if (OF_getprop(bus, "#size-cells", &szc, sizeof(szc)) == -1)
szc = 1;
if (szc < 1 || szc > 2)
return (ENXIO);
nbank /= sizeof(banks[0]) * (addrc + paddrc + szc);
bank = 0;
for (i = 0; i < nbank; i++) {
@ -232,9 +229,9 @@ OF_decode_addr(phandle_t node, int bank, int *space, bus_addr_t *addr)
}
if (i == nbank)
return (ENXIO);
lbus = bus;
skip:
addrc = paddrc;
lbus = bus;
bus = pbus;
}