[U-Boot] [uboot][PATCH v3 1/2] net: phy: dp83867: Add device tree bindings and documentation

[Michal Simek <michal.simek@xilinx.com>]

On 7.4.2016 18:02, Dan Murphy wrote:
> Mugunthan
> 
> On 04/06/2016 11:45 PM, Mugunthan V N wrote:
>> On Wednesday 06 April 2016 05:07 PM, Dan Murphy wrote:
>>> Add the device tree bindings and the accompanying documentation
>>> for the TI DP83867 Giga bit ethernet phy driver.
>>>
>>> The original document was from:
>>>     [commit 2a10154abcb75ad0d7b6bfea6210ac743ec60897 from the Linux kernel]
>>>
>>> Signed-off-by: Dan Murphy <dmurphy@ti.com>
>>> ---
>>>
>>> v3 - Modify the binding to the kernel changed int -> internal for the delay - https://patchwork.ozlabs.org/patch/606595/
>>>
>>>  doc/device-tree-bindings/net/ti,dp83867.txt | 29 ++++++++++++++++++++++++
>>>  include/dt-bindings/net/ti-dp83867.h        | 35 +++++++++++++++++++++++++++++
>>>  2 files changed, 64 insertions(+)
>>>  create mode 100644 doc/device-tree-bindings/net/ti,dp83867.txt
>>>  create mode 100644 include/dt-bindings/net/ti-dp83867.h
>>>
>>> diff --git a/doc/device-tree-bindings/net/ti,dp83867.txt b/doc/device-tree-bindings/net/ti,dp83867.txt
>>> new file mode 100644
>>> index 0000000..0ec009c
>>> --- /dev/null
>>> +++ b/doc/device-tree-bindings/net/ti,dp83867.txt
>>> @@ -0,0 +1,29 @@
>>> +* Texas Instruments - dp83867 Giga bit ethernet phy
>>> +
>>> +Required properties:
>>> +	- ti,rx-internal-delay - RGMII Recieve Clock Delay - see dt-bindings/net/ti-dp83867.h
>>> +		for applicable values
>>> +	- ti,tx-internal-delay - RGMII Transmit Clock Delay - see dt-bindings/net/ti-dp83867.h
>>> +		for applicable values
>>> +	- ti,fifo-depth - Transmitt FIFO depth- see dt-bindings/net/ti-dp83867.h
>>> +		for applicable values
>>> +
>>> +Default child nodes are standard Ethernet PHY device
>>> +nodes as described in doc/devicetree/bindings/net/ethernet.txt
>>> +
>>> +Example:
>>> +
>>> +&mac {
>>> +	pinctrl-0 = <&davinci_mdio_default>;
>>> +	pinctrl-1 = <&davinci_mdio_sleep>;
>>> +	status = "okay";
>>> +
>>> +	ti,rx_internal_delay = <DP83867_RGMIIDCTL_1_50_NS>;
>>> +	ti,tx_internal_delay = <DP83867_RGMIIDCTL_2_50_NS>;
>>> +	ti,fifo_depth = <DP83867_PHYCR_FIFO_DEPTH_8_B_NIB>;
>>> +
>>> +};
>> This example should in phy node and not in mac node as per the linux
>> commmit mentioned above?
> 
> Are you saying that the code should look like this
> 
> &mac {
>      pinctrl-0 = <&davinci_mdio_default>;
>      pinctrl-1 = <&davinci_mdio_sleep>;
>      status = "okay";
>     phy-handle = <&ethernet_phy>;
> 
>     ethernet_phy: ethernet-phy at 0 {
>         reg = <0>;
>         ti,rx_int_delay = <DP83867_RGMIIDCTL_2_25_NS>;
>         ti,tx_int_delay = <DP83867_RGMIIDCTL_2_75_NS>;
>         ti,fifo_depth = <DP83867_PHYCR_FIFO_DEPTH_4_B_NIB>;
>     };
> 
> This is the way it is in the kernel.

First of all. Please rebase your 2/2 on the top of current branch.
sgmii support was added recently.

Here is what I use on zynqmp.
http://lists.denx.de/pipermail/u-boot/2016-April/250866.html
And it reflects the description above.

Thanks,
Michal