The fact that all supported boards use the same 33MHz crystal is a co-incidence. The Zynq PS support a range of crystal freqs so the hardcoded setting should be removed from the dtsi. Re-implement it on the board level.
This prepares support for Zynq boards with different crystal frequencies (e.g. the Digilent ZYBO). Signed-off-by: Peter Crosthwaite <crosthwaite.pe...@gmail.com> --- Im guessing long term this should be converted to a fixed clock. But I think this at least steps in that direction. --- arch/arm/boot/dts/zynq-7000.dtsi | 1 - arch/arm/boot/dts/zynq-parallella.dts | 4 ++++ arch/arm/boot/dts/zynq-zc702.dts | 4 ++++ arch/arm/boot/dts/zynq-zc706.dts | 4 ++++ arch/arm/boot/dts/zynq-zed.dts | 4 ++++ 5 files changed, 16 insertions(+), 1 deletion(-) diff --git a/arch/arm/boot/dts/zynq-7000.dtsi b/arch/arm/boot/dts/zynq-7000.dtsi index ce2ef5b..ee3e5d6 100644 --- a/arch/arm/boot/dts/zynq-7000.dtsi +++ b/arch/arm/boot/dts/zynq-7000.dtsi @@ -243,7 +243,6 @@ clkc: clkc@100 { #clock-cells = <1>; compatible = "xlnx,ps7-clkc"; - ps-clk-frequency = <33333333>; fclk-enable = <0>; clock-output-names = "armpll", "ddrpll", "iopll", "cpu_6or4x", "cpu_3or2x", "cpu_2x", "cpu_1x", "ddr2x", "ddr3x", diff --git a/arch/arm/boot/dts/zynq-parallella.dts b/arch/arm/boot/dts/zynq-parallella.dts index e1f51ca..cd84d45 100644 --- a/arch/arm/boot/dts/zynq-parallella.dts +++ b/arch/arm/boot/dts/zynq-parallella.dts @@ -83,3 +83,7 @@ &uart1 { status = "okay"; }; + +&clkc { + ps-clk-frequency = <33333333>; +}; diff --git a/arch/arm/boot/dts/zynq-zc702.dts b/arch/arm/boot/dts/zynq-zc702.dts index 94e2cda..24dcece 100644 --- a/arch/arm/boot/dts/zynq-zc702.dts +++ b/arch/arm/boot/dts/zynq-zc702.dts @@ -135,3 +135,7 @@ &uart1 { status = "okay"; }; + +&clkc { + ps-clk-frequency = <33333333>; +}; diff --git a/arch/arm/boot/dts/zynq-zc706.dts b/arch/arm/boot/dts/zynq-zc706.dts index a8bbdfb..7b88399 100644 --- a/arch/arm/boot/dts/zynq-zc706.dts +++ b/arch/arm/boot/dts/zynq-zc706.dts @@ -114,3 +114,7 @@ &uart1 { status = "okay"; }; + +&clkc { + ps-clk-frequency = <33333333>; +}; diff --git a/arch/arm/boot/dts/zynq-zed.dts b/arch/arm/boot/dts/zynq-zed.dts index 697779a..4662da2 100644 --- a/arch/arm/boot/dts/zynq-zed.dts +++ b/arch/arm/boot/dts/zynq-zed.dts @@ -46,3 +46,7 @@ &uart1 { status = "okay"; }; + +&clkc { + ps-clk-frequency = <33333333>; +}; -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/