| Message ID | 1361175686-19400-17-git-send-email-thomas.abraham@linaro.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
Hi, On Mon, Feb 18, 2013 at 12:21 AM, Thomas Abraham <thomas.abraham@linaro.org> wrote: > The clock frequency of xxti and xusbxti clocks is dependent on the frequency of the > on-board oscillator that is used to generate these clocks. So allow the frequency > of these clocks to be specfied from device tree. > > Cc: Kukjin Kim <kgene.kim@samsung.com> > Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org> > --- > arch/arm/boot/dts/exynos4210-origen.dts | 12 ++++++++++++ > arch/arm/boot/dts/exynos4210-smdkv310.dts | 12 ++++++++++++ > arch/arm/boot/dts/exynos4210-trats.dts | 12 ++++++++++++ > arch/arm/boot/dts/exynos4412-odroidx.dts | 12 ++++++++++++ > arch/arm/boot/dts/exynos4412-origen.dts | 12 ++++++++++++ > arch/arm/boot/dts/exynos4412-smdk4412.dts | 12 ++++++++++++ > arch/arm/boot/dts/exynos5250-arndale.dts | 7 +++++++ > arch/arm/boot/dts/exynos5250-smdk5250.dts | 7 +++++++ > arch/arm/boot/dts/exynos5250-snow.dts | 7 +++++++ > arch/arm/boot/dts/exynos5440-ssdk5440.dts | 7 +++++++ > 10 files changed, 100 insertions(+), 0 deletions(-) > > diff --git a/arch/arm/boot/dts/exynos4210-origen.dts b/arch/arm/boot/dts/exynos4210-origen.dts > index 052606b..1b30bc8 100644 > --- a/arch/arm/boot/dts/exynos4210-origen.dts > +++ b/arch/arm/boot/dts/exynos4210-origen.dts > @@ -127,4 +127,16 @@ > linux,default-trigger = "heartbeat"; > }; > }; > + > + fixed-rate-clocks { > + xxti { > + compatible = "samsung,clock-xxti"; > + clock-frequency = <0>; > + }; > + > + xusbxti { > + compatible = "samsung,clock-xusbxti"; > + clock-frequency = <24000000>; > + }; > + }; Looks like xxti = 0 and xusbxti = 24MHz is the common frequencies on nearly all boards. It probably makes sense to add that to the defaults in dtsi, and override on the boards where it isn't the case. Saves some boilerplate code in the .dts files. -Olof -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/arch/arm/boot/dts/exynos4210-origen.dts b/arch/arm/boot/dts/exynos4210-origen.dts index 052606b..1b30bc8 100644 --- a/arch/arm/boot/dts/exynos4210-origen.dts +++ b/arch/arm/boot/dts/exynos4210-origen.dts @@ -127,4 +127,16 @@ linux,default-trigger = "heartbeat"; }; }; + + fixed-rate-clocks { + xxti { + compatible = "samsung,clock-xxti"; + clock-frequency = <0>; + }; + + xusbxti { + compatible = "samsung,clock-xusbxti"; + clock-frequency = <24000000>; + }; + }; }; diff --git a/arch/arm/boot/dts/exynos4210-smdkv310.dts b/arch/arm/boot/dts/exynos4210-smdkv310.dts index 2b1e03a..f52c86e 100644 --- a/arch/arm/boot/dts/exynos4210-smdkv310.dts +++ b/arch/arm/boot/dts/exynos4210-smdkv310.dts @@ -195,4 +195,16 @@ }; }; }; + + fixed-rate-clocks { + xxti { + compatible = "samsung,clock-xxti"; + clock-frequency = <12000000>; + }; + + xusbxti { + compatible = "samsung,clock-xusbxti"; + clock-frequency = <24000000>; + }; + }; }; diff --git a/arch/arm/boot/dts/exynos4210-trats.dts b/arch/arm/boot/dts/exynos4210-trats.dts index c346b64..9a14484 100644 --- a/arch/arm/boot/dts/exynos4210-trats.dts +++ b/arch/arm/boot/dts/exynos4210-trats.dts @@ -289,4 +289,16 @@ }; }; }; + + fixed-rate-clocks { + xxti { + compatible = "samsung,clock-xxti"; + clock-frequency = <0>; + }; + + xusbxti { + compatible = "samsung,clock-xusbxti"; + clock-frequency = <24000000>; + }; + }; }; diff --git a/arch/arm/boot/dts/exynos4412-odroidx.dts b/arch/arm/boot/dts/exynos4412-odroidx.dts index 0084d95..15dc0a3 100644 --- a/arch/arm/boot/dts/exynos4412-odroidx.dts +++ b/arch/arm/boot/dts/exynos4412-odroidx.dts @@ -94,4 +94,16 @@ serial@13830000 { status = "okay"; }; + + fixed-rate-clocks { + xxti { + compatible = "samsung,clock-xxti"; + clock-frequency = <0>; + }; + + xusbxti { + compatible = "samsung,clock-xusbxti"; + clock-frequency = <24000000>; + }; + }; }; diff --git a/arch/arm/boot/dts/exynos4412-origen.dts b/arch/arm/boot/dts/exynos4412-origen.dts index 31e14c4..a944611 100644 --- a/arch/arm/boot/dts/exynos4412-origen.dts +++ b/arch/arm/boot/dts/exynos4412-origen.dts @@ -415,4 +415,16 @@ }; }; }; + + fixed-rate-clocks { + xxti { + compatible = "samsung,clock-xxti"; + clock-frequency = <0>; + }; + + xusbxti { + compatible = "samsung,clock-xusbxti"; + clock-frequency = <24000000>; + }; + }; }; diff --git a/arch/arm/boot/dts/exynos4412-smdk4412.dts b/arch/arm/boot/dts/exynos4412-smdk4412.dts index 6ae4276..874beea 100644 --- a/arch/arm/boot/dts/exynos4412-smdk4412.dts +++ b/arch/arm/boot/dts/exynos4412-smdk4412.dts @@ -55,4 +55,16 @@ serial@13830000 { status = "okay"; }; + + fixed-rate-clocks { + xxti { + compatible = "samsung,clock-xxti"; + clock-frequency = <0>; + }; + + xusbxti { + compatible = "samsung,clock-xusbxti"; + clock-frequency = <24000000>; + }; + }; }; diff --git a/arch/arm/boot/dts/exynos5250-arndale.dts b/arch/arm/boot/dts/exynos5250-arndale.dts index 63572f9..5de019c 100644 --- a/arch/arm/boot/dts/exynos5250-arndale.dts +++ b/arch/arm/boot/dts/exynos5250-arndale.dts @@ -119,4 +119,11 @@ spi_2: spi@12d40000 { status = "disabled"; }; + + fixed-rate-clocks { + xxti { + compatible = "samsung,clock-xxti"; + clock-frequency = <24000000>; + }; + }; }; diff --git a/arch/arm/boot/dts/exynos5250-smdk5250.dts b/arch/arm/boot/dts/exynos5250-smdk5250.dts index 1391c31..f77bf3a 100644 --- a/arch/arm/boot/dts/exynos5250-smdk5250.dts +++ b/arch/arm/boot/dts/exynos5250-smdk5250.dts @@ -217,4 +217,11 @@ samsung,link-rate = <0x0a>; samsung,lane-count = <4>; }; + + fixed-rate-clocks { + xxti { + compatible = "samsung,clock-xxti"; + clock-frequency = <24000000>; + }; + }; }; diff --git a/arch/arm/boot/dts/exynos5250-snow.dts b/arch/arm/boot/dts/exynos5250-snow.dts index 47b6b84..babd9f9 100644 --- a/arch/arm/boot/dts/exynos5250-snow.dts +++ b/arch/arm/boot/dts/exynos5250-snow.dts @@ -44,4 +44,11 @@ usb@12110000 { samsung,vbus-gpio = <&gpx1 1 1 3 3>; }; + + fixed-rate-clocks { + xxti { + compatible = "samsung,clock-xxti"; + clock-frequency = <24000000>; + }; + }; }; diff --git a/arch/arm/boot/dts/exynos5440-ssdk5440.dts b/arch/arm/boot/dts/exynos5440-ssdk5440.dts index ee60c57..a21eb4c 100644 --- a/arch/arm/boot/dts/exynos5440-ssdk5440.dts +++ b/arch/arm/boot/dts/exynos5440-ssdk5440.dts @@ -27,4 +27,11 @@ spi { status = "disabled"; }; + + fixed-rate-clocks { + xtal { + compatible = "samsung,clock-xtal"; + clock-frequency = <50000000>; + }; + }; };
The clock frequency of xxti and xusbxti clocks is dependent on the frequency of the on-board oscillator that is used to generate these clocks. So allow the frequency of these clocks to be specfied from device tree. Cc: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org> --- arch/arm/boot/dts/exynos4210-origen.dts | 12 ++++++++++++ arch/arm/boot/dts/exynos4210-smdkv310.dts | 12 ++++++++++++ arch/arm/boot/dts/exynos4210-trats.dts | 12 ++++++++++++ arch/arm/boot/dts/exynos4412-odroidx.dts | 12 ++++++++++++ arch/arm/boot/dts/exynos4412-origen.dts | 12 ++++++++++++ arch/arm/boot/dts/exynos4412-smdk4412.dts | 12 ++++++++++++ arch/arm/boot/dts/exynos5250-arndale.dts | 7 +++++++ arch/arm/boot/dts/exynos5250-smdk5250.dts | 7 +++++++ arch/arm/boot/dts/exynos5250-snow.dts | 7 +++++++ arch/arm/boot/dts/exynos5440-ssdk5440.dts | 7 +++++++ 10 files changed, 100 insertions(+), 0 deletions(-)