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Date: Mon, 1 Dec 2014 10:25:49 +1000 From: Peter Crosthwaite <crosthwaitepeter@...il.com> To: linux-kernel@...r.kernel.org, devicetree@...r.kernel.org Cc: michals@...inx.com, sorenb@...inx.com, steven.wang@...ilentinc.com Subject: [PATCH v3 2/3] arm: dts: zynq: Move crystal freq. to board level 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). Acked-by: Soren Brinkmann <soren.brinkmann@...inx.com> Signed-off-by: Peter Crosthwaite <crosthwaite.peter@...il.com> --- Changed since v1: Alphabetize node ordering (Soren review) 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 | 1 + 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, 13 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 0429bbd..b5792cab 100644 --- a/arch/arm/boot/dts/zynq-parallella.dts +++ b/arch/arm/boot/dts/zynq-parallella.dts @@ -35,6 +35,7 @@ }; &clkc { + ps-clk-frequency = <33333333>; fclk-enable = <0xf>; }; diff --git a/arch/arm/boot/dts/zynq-zc702.dts b/arch/arm/boot/dts/zynq-zc702.dts index 94e2cda..280f02d 100644 --- a/arch/arm/boot/dts/zynq-zc702.dts +++ b/arch/arm/boot/dts/zynq-zc702.dts @@ -42,6 +42,10 @@ status = "okay"; }; +&clkc { + ps-clk-frequency = <33333333>; +}; + &gem0 { status = "okay"; phy-mode = "rgmii-id"; diff --git a/arch/arm/boot/dts/zynq-zc706.dts b/arch/arm/boot/dts/zynq-zc706.dts index a8bbdfb..34f7812 100644 --- a/arch/arm/boot/dts/zynq-zc706.dts +++ b/arch/arm/boot/dts/zynq-zc706.dts @@ -29,6 +29,10 @@ }; +&clkc { + ps-clk-frequency = <33333333>; +}; + &gem0 { status = "okay"; phy-mode = "rgmii-id"; diff --git a/arch/arm/boot/dts/zynq-zed.dts b/arch/arm/boot/dts/zynq-zed.dts index 697779a..1c7cc99 100644 --- a/arch/arm/boot/dts/zynq-zed.dts +++ b/arch/arm/boot/dts/zynq-zed.dts @@ -29,6 +29,10 @@ }; +&clkc { + ps-clk-frequency = <33333333>; +}; + &gem0 { status = "okay"; phy-mode = "rgmii-id"; -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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