diff options
Diffstat (limited to 'drivers/of')
| -rw-r--r-- | drivers/of/of_reserved_mem.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/drivers/of/of_reserved_mem.c b/drivers/of/of_reserved_mem.c index 69b8117..daaaf93 100644 --- a/drivers/of/of_reserved_mem.c +++ b/drivers/of/of_reserved_mem.c @@ -170,6 +170,33 @@ static int __init __reserved_mem_alloc_size(unsigned long node, return 0; } +static const struct of_device_id __rmem_of_table_sentinel + __used __section(__reservedmem_of_table_end); + +/** + * res_mem_init_node() - call region specific reserved memory init code + */ +static int __init __reserved_mem_init_node(struct reserved_mem *rmem) +{ + extern const struct of_device_id __reservedmem_of_table[]; + const struct of_device_id *i; + + for (i = __reservedmem_of_table; i < &__rmem_of_table_sentinel; i++) { + reservedmem_of_init_fn initfn = i->data; + const char *compat = i->compatible; + + if (!of_flat_dt_is_compatible(rmem->fdt_node, compat)) + continue; + + if (initfn(rmem, rmem->fdt_node, rmem->name) == 0) { + pr_info("Reserved memory: initialized node %s, compatible id %s\n", + rmem->name, compat); + return 0; + } + } + return -ENOENT; +} + /** * fdt_init_reserved_mem - allocate and init all saved reserved memory regions */ @@ -184,5 +211,7 @@ void __init fdt_init_reserved_mem(void) if (rmem->size == 0) err = __reserved_mem_alloc_size(node, rmem->name, &rmem->base, &rmem->size); + if (err == 0) + __reserved_mem_init_node(rmem); } } |