netdev - Re: [PATCH 3/3] net: hisilicon: Add Fast Ethernet MAC driver

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Date:	Wed, 15 Jun 2016 18:08:11 +0800
From:	Dongpo Li <lidongpo@...ilicon.com>
To:	Rob Herring <robh@...nel.org>
CC:	<f.fainelli@...il.com>, <mark.rutland@....com>,
	<davem@...emloft.net>, <xuejiancheng@...ilicon.com>,
	<netdev@...r.kernel.org>, <devicetree@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 3/3] net: hisilicon: Add Fast Ethernet MAC driver



On 2016/6/15 6:31, Rob Herring wrote:
> On Mon, Jun 13, 2016 at 02:07:56PM +0800, Dongpo Li wrote:
>> This patch adds the Hisilicon Fast Ethernet MAC(FEMAC) driver.
>> The FEMAC supports max speed 100Mbps and has been used in many
>> Hisilicon SoC.
>>
>> Reviewed-by: Jiancheng Xue <xuejiancheng@...ilicon.com>
>> Signed-off-by: Dongpo Li <lidongpo@...ilicon.com>
>> ---
>>  .../devicetree/bindings/net/hisilicon-femac.txt    |   40 +
>>  drivers/net/ethernet/hisilicon/Kconfig             |   12 +
>>  drivers/net/ethernet/hisilicon/Makefile            |    1 +
>>  drivers/net/ethernet/hisilicon/hisi_femac.c        | 1015 ++++++++++++++++++++
>>  4 files changed, 1068 insertions(+)
>>  create mode 100644 Documentation/devicetree/bindings/net/hisilicon-femac.txt
>>  create mode 100644 drivers/net/ethernet/hisilicon/hisi_femac.c
>>
>> diff --git a/Documentation/devicetree/bindings/net/hisilicon-femac.txt b/Documentation/devicetree/bindings/net/hisilicon-femac.txt
>> new file mode 100644
>> index 0000000..b953a56
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/net/hisilicon-femac.txt
>> @@ -0,0 +1,40 @@
>> +Hisilicon Fast Ethernet MAC controller
>> +
>> +Required properties:
>> +- compatible: should be "hisilicon,hisi-femac" and one of the following:
> 
> This compatible seems a bit pointless. The following 2 are generic 
> enough.
> 
ok, I will remove this compatible.

>> +	* "hisilicon,hisi-femac-v1"
>> +	* "hisilicon,hisi-femac-v2"
> 
> SoC specific compatible strings in addition to these please.
> 
ok.

>> +- reg: specifies base physical address(s) and size of the device registers.
>> +  The first region is the MAC core register base and size.
>> +  The second region is the global MAC control register.
>> +- interrupts: should contain the MAC interrupt.
>> +- clocks: clock phandle and specifier pair.
> 
> How many clocks?
> 
Only one clock, the following description is ok?
- clocks: phandle reference to the MAC main clock

>> +- resets: should contain the phandle to the MAC reset signal(required) and
>> +	the PHY reset signal(optional).
>> +- reset-names: should contain the reset signal name "mac_reset"(required)
>> +	and "phy_reset"(optional).
>> +- mac-address: see ethernet.txt [1].
>> +- phy-mode: see ethernet.txt [1].
>> +- phy-handle: see ethernet.txt [1].
>> +- hisilicon,phy-reset-delays: triplet of delays if PHY reset signal given.
>> +	The 1st cell is reset pre-delay in micro seconds.
>> +	The 2nd cell is reset pulse in micro seconds.
>> +	The 3rd cell is reset post-delay in micro seconds.
> 
> Add standard unit suffixes.
> 
ok.

>> +
>> +[1] Documentation/devicetree/bindings/net/ethernet.txt
>> +
>> +Example:
>> +	hisi_femac: ethernet@...90000 {
>> +		compatible = "hisilicon,hisi-femac-v2", "hisilicon,hisi-femac";
>> +		reg = <0x10090000 0x1000>,<0x10091300 0x200>;
>> +		interrupts = <12>;
>> +		clocks = <&crg HI3518EV200_ETH_CLK>;
>> +		resets = <&crg 0xec 0>,
>> +				<&crg 0xec 3>;
>> +		reset-names = "mac_reset",
>> +				"phy_reset";
>> +		mac-address = [00 00 00 00 00 00];
>> +		phy-mode = "mii";
>> +		phy-handle = <&phy0>;
>> +		hisilicon,phy-reset-delays = <10000 20000 20000>;
>> +	};
> 
> .
> 

    Regards,
    Dongpo

.