[PATCH v2 1/8] ARM: dts: dra7: Initialize USB_DPLL

Tero Kristo t-kristo at ti.com
Mon Mar 10 09:28:35 EDT 2014


On 03/10/2014 02:49 PM, Roger Quadros wrote:
> USB_DPLL must be initialized and locked at boot so that
> USB modules can work.
>
> Program USB_DLL_M2 output to half rate as well.
>
> Patch depends on
> https://www.mail-archive.com/linux-omap@vger.kernel.org/msg101300.html
>
> CC: Mike Turquette <mturquette at linaro.org>
> CC: Tero Kristo <t-kristo at ti.com>
> Signed-off-by: Roger Quadros <rogerq at ti.com>
> ---
>   arch/arm/boot/dts/dra7.dtsi | 8 ++++++++
>   1 file changed, 8 insertions(+)
>
> diff --git a/arch/arm/boot/dts/dra7.dtsi b/arch/arm/boot/dts/dra7.dtsi
> index 597979b..f376923 100644
> --- a/arch/arm/boot/dts/dra7.dtsi
> +++ b/arch/arm/boot/dts/dra7.dtsi
> @@ -815,3 +815,11 @@
>   };
>
>   /include/ "dra7xx-clocks.dtsi"
> +
> +&dpll_usb_ck {
> +        default-rate = <960000000>;
> +};
> +
> +&dpll_usb_m2_ck {
> +	default-rate = <480000000>;
> +};
>

You can add these directly under the dra7xx-clocks.dtsi file as well, as 
I don't think anybody needs to modify these. And the properties can be 
added directly under the nodes themselves.

However, this patch can't be acked yet as we have no feedback from Mike 
for the default-rate proposal.

-Tero




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