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Allow 'no static device mappings' to potentially work. It's not clear that

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every arm system must have some static mappings to work correctly (although
currently they all do), so remove some panic() calls (which would never
been seen anyway, because they would happen before a console is available).
This commit is contained in:
Ian Lepore 2014-01-06 16:07:27 +00:00
parent fdadb971af
commit 62a70ef64d
1 changed files with 6 additions and 10 deletions
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16
sys/arm/arm/devmap.c
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@ -67,11 +67,8 @@ arm_devmap_lastaddr()
if (akva_devmap_idx > 0)
return (akva_devmap_vaddr);
if (devmap_table == NULL)
panic("arm_devmap_lastaddr(): No devmap table registered.");
lowaddr = ARM_VECTORS_HIGH;
for (pd = devmap_table; pd->pd_size != 0; ++pd) {
for (pd = devmap_table; pd != NULL && pd->pd_size != 0; ++pd) {
if (lowaddr > pd->pd_va)
lowaddr = pd->pd_va;
}
@ -145,22 +142,21 @@ arm_devmap_bootstrap(vm_offset_t l1pt, const struct arm_devmap_entry *table)
{
const struct arm_devmap_entry *pd;
devmap_bootstrap_done = true;
/*
* If given a table pointer, use it, else ensure a table was previously
* registered. This happens early in boot, and there's a good chance
* the panic message won't be seen, but there's not much we can do.
* If given a table pointer, use it. Otherwise, if a table was
* previously registered, use it. Otherwise, no work to do.
*/
if (table != NULL)
devmap_table = table;
else if (devmap_table == NULL)
panic("arm_devmap_bootstrap(): No devmap table registered");
return;
for (pd = devmap_table; pd->pd_size != 0; ++pd) {
pmap_map_chunk(l1pt, pd->pd_va, pd->pd_pa, pd->pd_size,
pd->pd_prot,pd->pd_cache);
}
devmap_bootstrap_done = true;
}
/*