[PATCH 0/7] Add support for AmLogic GXBB clock controller

Neil Armstrong narmstrong at baylibre.com
Fri Jun 10 02:12:18 PDT 2016


On 06/10/2016 02:32 AM, Michael Turquette wrote:
> This series is based on the AmLogic Meson8b rewrite/cleanup[0]. The
> AmLogic GXBB is an ARMv8-based SoC, fed by a 24MHZ xtal, and it provides
> several PLLs, muxes dividers and gates to drive CPUs and peripherals.
> 
> While based on the Meson8b clock controller driver, this series adds
> supports for Multi-phase Locked Loops (mpll) and support for PLLs with
> fractional rates.
> 
> This series introduces the clock controller driver for the gxbb,
> including the DT binding description and accompanying change in the gxbb
> dtsi. Only three clocks are exposed via the headers in the dt-bindings
> include-chroot. More can be added later, but since these values
> represent an ABI I wanted to start small. I'm not sure about the names
> for the gate clocks, so I especially tried to avoid putting those in the
> binding (with the exception of the Ethernet gate, which Kevin has needed
> for a while).
> 
> Notably missing from this driver are the branch clocks (e.g. the mess of
> muxes and dividers that come after the PLLs and MPLLs). I could have
> guessed how things were wired up from the resources available to me, but
> I'm hoping to get some improved documentation soon and then I'll go back
> and fill them in.
> 
> [0] http://lkml.kernel.org/g/1465518467-23939-1-git-send-email-mturquette@baylibre.com
> 
> Michael Turquette (7):
>   clk: meson: add peripheral gate macro
>   clk: meson: add mpll support
>   clk: meson: fractional pll support
>   clk: gxbb: Document bindings for the GXBB clock controller
>   clk: gxbb: add AmLogic GXBB clk controller driver
>   arm64: amlogic: select gxbb clk driver
>   arm64: dts: gxbb clock controller
> 
>  .../bindings/clock/amlogic,gxbb-clkc.txt           |  36 +
>  arch/arm64/Kconfig.platforms                       |   2 +
>  arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi        |   7 +
>  drivers/clk/meson/Kconfig                          |   7 +
>  drivers/clk/meson/Makefile                         |   3 +-
>  drivers/clk/meson/clk-mpll.c                       |  94 ++
>  drivers/clk/meson/clk-pll.c                        |  32 +-
>  drivers/clk/meson/clkc.h                           |  39 +
>  drivers/clk/meson/gxbb.c                           | 954 +++++++++++++++++++++
>  drivers/clk/meson/gxbb.h                           | 271 ++++++
>  include/dt-bindings/clock/gxbb-clkc.h              |  12 +
>  11 files changed, 1454 insertions(+), 3 deletions(-)
>  create mode 100644 Documentation/devicetree/bindings/clock/amlogic,gxbb-clkc.txt
>  create mode 100644 drivers/clk/meson/clk-mpll.c
>  create mode 100644 drivers/clk/meson/gxbb.c
>  create mode 100644 drivers/clk/meson/gxbb.h
>  create mode 100644 include/dt-bindings/clock/gxbb-clkc.h
> 

Mike,

I did not receive the 5/7 on the mailing list, can you resend ?

Neil




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