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53 Commits

Author SHA1 Message Date
Bin Meng
cb5cbfd503 dm: cpu: Test against cpu_ops->get_info in cpu_get_info() 
In cpu_get_info() it wrongly tests against cpu_ops->get_desc to see
if it is NULL. It should test against cpu_ops->get_info.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
 2015-07-14 18:03:15 -06:00
Bin Meng
166c3984e6 dm: cpu: Fix undefined ENOSYS build error 
Include <errno.h> otherwise ENOSYS is undefined.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
 2015-07-14 18:03:15 -06:00
Simon Glass
11f4dc1583 dm: Implement a CPU uclass 
It is useful to be able to keep track of the available CPUs in a multi-CPU
system. This uclass is mostly intended for use with SMP systems.

The uclass provides methods for getting basic information about each CPU.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
 2015-04-29 21:02:33 -06:00