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Groups > linux.kernel > #1413892 > unrolled thread
| Started by | Aaro Koskinen <aaro.koskinen@iki.fi> |
|---|---|
| First post | 2016-06-05 00:30 +0200 |
| Last post | 2016-06-09 21:10 +0200 |
| Articles | 4 — 2 participants |
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[PATCH] Documentation/devicetree: document cavium-pip rx-delay/tx-delay properties Aaro Koskinen <aaro.koskinen@iki.fi> - 2016-06-05 00:30 +0200
Re: [PATCH] Documentation/devicetree: document cavium-pip rx-delay/tx-delay properties Rob Herring <robh@kernel.org> - 2016-06-08 21:20 +0200
Re: [PATCH] Documentation/devicetree: document cavium-pip rx-delay/tx-delay properties Aaro Koskinen <aaro.koskinen@iki.fi> - 2016-06-08 22:00 +0200
Re: [PATCH] Documentation/devicetree: document cavium-pip rx-delay/tx-delay properties Rob Herring <robh@kernel.org> - 2016-06-09 21:10 +0200
| From | Aaro Koskinen <aaro.koskinen@iki.fi> |
|---|---|
| Date | 2016-06-05 00:30 +0200 |
| Subject | [PATCH] Documentation/devicetree: document cavium-pip rx-delay/tx-delay properties |
| Message-ID | <rGseS-6NZ-7@gated-at.bofh.it> |
Document cavium-pip rx-delay/tx-delay properties. Currently the board
specific values need to be hardcoded in the platform code, which we
want to avoid when moving to DT-only booting.
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
---
Documentation/devicetree/bindings/net/cavium-pip.txt | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/Documentation/devicetree/bindings/net/cavium-pip.txt b/Documentation/devicetree/bindings/net/cavium-pip.txt
index 7dbd158..edbf411 100644
--- a/Documentation/devicetree/bindings/net/cavium-pip.txt
+++ b/Documentation/devicetree/bindings/net/cavium-pip.txt
@@ -37,6 +37,10 @@ Properties for PIP port which is a child the PIP interface:
- phy-handle: Optional, see ethernet.txt file in the same directory.
+- rx-delay: Delay value for RGMII receive clock. Optional. Disabled if 0.
+
+- tx-delay: Delay value for RGMII transmit clock. Optional. Disabled if 0.
+
Example:
pip@11800a0000000 {
--
2.7.2
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| From | Rob Herring <robh@kernel.org> |
|---|---|
| Date | 2016-06-08 21:20 +0200 |
| Subject | Re: [PATCH] Documentation/devicetree: document cavium-pip rx-delay/tx-delay properties |
| Message-ID | <rHRbc-4cI-11@gated-at.bofh.it> |
| In reply to | #1413892 |
On Sun, Jun 05, 2016 at 01:24:02AM +0300, Aaro Koskinen wrote:
> Document cavium-pip rx-delay/tx-delay properties. Currently the board
> specific values need to be hardcoded in the platform code, which we
> want to avoid when moving to DT-only booting.
>
> Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
> ---
> Documentation/devicetree/bindings/net/cavium-pip.txt | 4 ++++
> 1 file changed, 4 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/net/cavium-pip.txt b/Documentation/devicetree/bindings/net/cavium-pip.txt
> index 7dbd158..edbf411 100644
> --- a/Documentation/devicetree/bindings/net/cavium-pip.txt
> +++ b/Documentation/devicetree/bindings/net/cavium-pip.txt
> @@ -37,6 +37,10 @@ Properties for PIP port which is a child the PIP interface:
>
> - phy-handle: Optional, see ethernet.txt file in the same directory.
>
> +- rx-delay: Delay value for RGMII receive clock. Optional. Disabled if 0.
> +
> +- tx-delay: Delay value for RGMII transmit clock. Optional. Disabled if 0.
What are the units? Use standard unit suffix if in ns, us, etc.
> +
> Example:
>
> pip@11800a0000000 {
> --
> 2.7.2
>
> --
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| From | Aaro Koskinen <aaro.koskinen@iki.fi> |
|---|---|
| Date | 2016-06-08 22:00 +0200 |
| Subject | Re: [PATCH] Documentation/devicetree: document cavium-pip rx-delay/tx-delay properties |
| Message-ID | <rHRNU-4rG-25@gated-at.bofh.it> |
| In reply to | #1417785 |
Hi, On Wed, Jun 08, 2016 at 02:18:42PM -0500, Rob Herring wrote: > On Sun, Jun 05, 2016 at 01:24:02AM +0300, Aaro Koskinen wrote: > > Document cavium-pip rx-delay/tx-delay properties. Currently the board > > specific values need to be hardcoded in the platform code, which we > > want to avoid when moving to DT-only booting. > > > > Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi> > > --- > > Documentation/devicetree/bindings/net/cavium-pip.txt | 4 ++++ > > 1 file changed, 4 insertions(+) > > > > diff --git a/Documentation/devicetree/bindings/net/cavium-pip.txt b/Documentation/devicetree/bindings/net/cavium-pip.txt > > index 7dbd158..edbf411 100644 > > --- a/Documentation/devicetree/bindings/net/cavium-pip.txt > > +++ b/Documentation/devicetree/bindings/net/cavium-pip.txt > > @@ -37,6 +37,10 @@ Properties for PIP port which is a child the PIP interface: > > > > - phy-handle: Optional, see ethernet.txt file in the same directory. > > > > +- rx-delay: Delay value for RGMII receive clock. Optional. Disabled if 0. > > + > > +- tx-delay: Delay value for RGMII transmit clock. Optional. Disabled if 0. > > What are the units? Use standard unit suffix if in ns, us, etc. This is a raw register value, and the mapping to actual delay varies depending on HW, AFAIK. A.
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| From | Rob Herring <robh@kernel.org> |
|---|---|
| Date | 2016-06-09 21:10 +0200 |
| Subject | Re: [PATCH] Documentation/devicetree: document cavium-pip rx-delay/tx-delay properties |
| Message-ID | <rIdv3-27R-3@gated-at.bofh.it> |
| In reply to | #1417828 |
On Wed, Jun 8, 2016 at 2:51 PM, Aaro Koskinen <aaro.koskinen@iki.fi> wrote: > Hi, > > On Wed, Jun 08, 2016 at 02:18:42PM -0500, Rob Herring wrote: >> On Sun, Jun 05, 2016 at 01:24:02AM +0300, Aaro Koskinen wrote: >> > Document cavium-pip rx-delay/tx-delay properties. Currently the board >> > specific values need to be hardcoded in the platform code, which we >> > want to avoid when moving to DT-only booting. >> > >> > Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi> >> > --- >> > Documentation/devicetree/bindings/net/cavium-pip.txt | 4 ++++ >> > 1 file changed, 4 insertions(+) >> > >> > diff --git a/Documentation/devicetree/bindings/net/cavium-pip.txt b/Documentation/devicetree/bindings/net/cavium-pip.txt >> > index 7dbd158..edbf411 100644 >> > --- a/Documentation/devicetree/bindings/net/cavium-pip.txt >> > +++ b/Documentation/devicetree/bindings/net/cavium-pip.txt >> > @@ -37,6 +37,10 @@ Properties for PIP port which is a child the PIP interface: >> > >> > - phy-handle: Optional, see ethernet.txt file in the same directory. >> > >> > +- rx-delay: Delay value for RGMII receive clock. Optional. Disabled if 0. >> > + >> > +- tx-delay: Delay value for RGMII transmit clock. Optional. Disabled if 0. >> >> What are the units? Use standard unit suffix if in ns, us, etc. > > This is a raw register value, and the mapping to actual delay varies > depending on HW, AFAIK. Then state that in the description. Rob
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