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

[Mugunthan V N]

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 at 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?

Regards
Mugunthan V N

> +
> +
> +Datasheet can be found:
> +http://www.ti.com/product/DP83867IR/datasheet
> diff --git a/include/dt-bindings/net/ti-dp83867.h b/include/dt-bindings/net/ti-dp83867.h
> new file mode 100644
> index 0000000..5c592fb
> --- /dev/null
> +++ b/include/dt-bindings/net/ti-dp83867.h
> @@ -0,0 +1,35 @@
> +/*
> + * TI DP83867 PHY drivers
> + *
> + * SPDX-License-Identifier:	GPL-2.0
> + *
> + */
> +
> +#ifndef _DT_BINDINGS_TI_DP83867_H
> +#define _DT_BINDINGS_TI_DP83867_H
> +
> +/* PHY CTRL bits */
> +#define DP83867_PHYCR_FIFO_DEPTH_3_B_NIB	0x00
> +#define DP83867_PHYCR_FIFO_DEPTH_4_B_NIB	0x01
> +#define DP83867_PHYCR_FIFO_DEPTH_6_B_NIB	0x02
> +#define DP83867_PHYCR_FIFO_DEPTH_8_B_NIB	0x03
> +
> +/* RGMIIDCTL internal delay for rx and tx */
> +#define	DP83867_RGMIIDCTL_250_PS	0x0
> +#define	DP83867_RGMIIDCTL_500_PS	0x1
> +#define	DP83867_RGMIIDCTL_750_PS	0x2
> +#define	DP83867_RGMIIDCTL_1_NS		0x3
> +#define	DP83867_RGMIIDCTL_1_25_NS	0x4
> +#define	DP83867_RGMIIDCTL_1_50_NS	0x5
> +#define	DP83867_RGMIIDCTL_1_75_NS	0x6
> +#define	DP83867_RGMIIDCTL_2_00_NS	0x7
> +#define	DP83867_RGMIIDCTL_2_25_NS	0x8
> +#define	DP83867_RGMIIDCTL_2_50_NS	0x9
> +#define	DP83867_RGMIIDCTL_2_75_NS	0xa
> +#define	DP83867_RGMIIDCTL_3_00_NS	0xb
> +#define	DP83867_RGMIIDCTL_3_25_NS	0xc
> +#define	DP83867_RGMIIDCTL_3_50_NS	0xd
> +#define	DP83867_RGMIIDCTL_3_75_NS	0xe
> +#define	DP83867_RGMIIDCTL_4_00_NS	0xf
> +
> +#endif
>