clk: add support for clocks provided by SCP(System Control Processor)

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On some ARM based systems, a separate Cortex-M based System Control
Processor(SCP) provides the overall power, clock, reset and system
control. System Control and Power Interface(SCPI) Message Protocol
is defined for the communication between the Application Cores(AP)
and the SCP.

This patch adds support for the clocks provided by SCP using SCPI
protocol.

Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Cc: Mike Turquette <mturquette@baylibre.com>
Cc: Liviu Dudau <Liviu.Dudau@arm.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Jon Medhurst (Tixy) <tixy@linaro.org>
Cc: linux-clk@vger.kernel.org

...

This commit is contained in:

Sudeep Holla 2015-03-30 10:59:52 +01:00

parent 8cb7cf56c9

commit cd52c2a4b5

4 changed files with 324 additions and 0 deletions

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10

drivers/clk/Kconfig

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1

drivers/clk/Makefile

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312

drivers/clk/clk-scpi.c

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