[PATCH 0/5] Add Core Divider clock support for Armada 370/XP

[ezequiel.garcia@free-electrons.com (Ezequiel Garcia)]

(Ccing forgotten mvebu maintainers)

On Wed, Sep 25, 2013 at 06:28:17PM -0300, Ezequiel Garcia wrote:
> This patchset adds support for a set of clocks available in Armada 370/XP
> known as "Core Divider" clocks.
> 
> These are a set of gatable clocks, derived from a fixed PLL at
> a configurable ratio. Although this patchset adds support for the more
> general case, we only support one of the clocks, namely the NAND ECC clock.
> 
> With this infrastructure in place, the addition of the rest of the clocks
> would be fairly easy.
> 
> In addition, the NAND clock is added as a fixed-ratio from the NAND ECC clock,
> to model accurately the SoC clock tree.
> 
> A pictorical representation of the clock tree would be:
> 
>     PLL
>     |
>     |
>     ---------------------
>     |			|
>     |			|
>     NAND ECC clock	...
>     |
>     |
>     NAND clock
> 
> This patchset is based on v3.12-rc2. Any opinions are highly appreciated.
> 
> Thanks!
> 
> Ezequiel Garcia (5):
>   clk: mvebu: Add core-divider clock
>   ARM: mvebu: Add Core Divider clock device-tree binding
>   ARM: mvebu: Add a 2 GHz fixed-clock Armada 370/XP
>   ARM: mvebu: Add the core-divider clock to Armada 370/XP
>   ARM: mvebu: Add NAND clock to Armada 370/XP
> 
>  .../bindings/clock/mvebu-corediv-clock.txt         |  19 ++
>  arch/arm/boot/dts/armada-370-xp.dtsi               |  25 +++
>  drivers/clk/mvebu/Kconfig                          |   5 +
>  drivers/clk/mvebu/Makefile                         |   1 +
>  drivers/clk/mvebu/clk-corediv.c                    | 209 +++++++++++++++++++++
>  5 files changed, 259 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/clock/mvebu-corediv-clock.txt
>  create mode 100644 drivers/clk/mvebu/clk-corediv.c
> 
> -- 
> 1.8.1.5
> 

-- 
Ezequiel Garc?a, Free Electrons
Embedded Linux, Kernel and Android Engineering
http://free-electrons.com