Sudeep KarkadaNagesha 183912d352
of: move of_get_cpu_node implementation to DT core library ...
This patch moves the generalized implementation of of_get_cpu_node from
PowerPC to DT core library, thereby adding support for retrieving cpu
node for a given logical cpu index on any architecture.
The CPU subsystem can now use this function to assign of_node in the
cpu device while registering CPUs.
It is recommended to use these helper function only in pre-SMP/early
initialisation stages to retrieve CPU device node pointers in logical
ordering. Once the cpu devices are registered, it can be retrieved easily
from cpu device of_node which avoids unnecessary parsing and matching.
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org >
Cc: Grant Likely <grant.likely@linaro.org >
Acked-by: Rob Herring <rob.herring@calxeda.com >
Signed-off-by: Sudeep KarkadaNagesha <sudeep.karkadanagesha@arm.com >
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