lkml.org 
[lkml]   [2014]   [Jun]   [19]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH v2 10/18] ARM: dts: dra7xx-clocks: Add missing 32khz clocks used for PHY
Hi Tero,

On Thursday 19 June 2014 04:46 PM, Tero Kristo wrote:
> On 05/29/2014 09:38 AM, Kishon Vijay Abraham I wrote:
>> Added missing 32khz clock used by PCIe PHY.
>> The documention for this node can be found @ ../bindings/clock/ti/gate.txt.
>
> You can drop the node documentation ref, and rather add a TRM reference about
> hardware details. Other than that, looks good to me.

You mean something like why 32KHz clock is used (**PRCM.PCIE_32K_GFCLK (based
on PRM.SYS_32K) for debounce and wakeup logic inside the PCIe1_PHY_RX**)? Or
something like **Figure 26-19. PCIe PHY Subsystem Integration of DRA TRM vE
shows how 32KHz clock is being used** ?

Thanks
Kishon

>
> -Tero
>
>>
>> Cc: Tony Lindgren <tony@atomide.com>
>> Cc: Rajendra Nayak <rnayak@ti.com>
>> Cc: Tero Kristo <t-kristo@ti.com>
>> Cc: Paul Walmsley <paul@pwsan.com>
>> Cc: Tony Lindgren <tony@atomide.com>
>> Cc: Rob Herring <robh+dt@kernel.org>
>> Cc: Pawel Moll <pawel.moll@arm.com>
>> Cc: Mark Rutland <mark.rutland@arm.com>
>> Cc: Kumar Gala <galak@codeaurora.org>
>> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
>> ---
>> arch/arm/boot/dts/dra7xx-clocks.dtsi | 8 ++++++++
>> 1 file changed, 8 insertions(+)
>>
>> diff --git a/arch/arm/boot/dts/dra7xx-clocks.dtsi
>> b/arch/arm/boot/dts/dra7xx-clocks.dtsi
>> index 44993ec..e1bd052 100644
>> --- a/arch/arm/boot/dts/dra7xx-clocks.dtsi
>> +++ b/arch/arm/boot/dts/dra7xx-clocks.dtsi
>> @@ -1165,6 +1165,14 @@
>> reg = <0x021c>, <0x0220>;
>> };
>>
>> + optfclk_pciephy_32khz: optfclk_pciephy_32khz@4a0093b0 {
>> + compatible = "ti,gate-clock";
>> + clocks = <&sys_32k_ck>;
>> + #clock-cells = <0>;
>> + reg = <0x13b0>;
>> + ti,bit-shift = <8>;
>> + };
>> +
>> optfclk_pciephy_div: optfclk_pciephy_div@4a00821c {
>> compatible = "ti,divider-clock";
>> clocks = <&apll_pcie_ck>;
>>
>


\
 
 \ /
  Last update: 2014-06-19 16:01    [W:1.433 / U:0.028 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site