linux-kernel - Re: [PATCH 2/3] ARM: dts: stm32f429: Add Ethernet support

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Date:	Wed, 2 Mar 2016 09:23:31 +0100
From:	Alexandre Torgue <alexandre.torgue@...il.com>
To:	Maxime Coquelin <mcoquelin.stm32@...il.com>
Cc:	Arnd Bergmann <arnd@...db.de>, olof@...om.net, khilman@...nel.org,
	linux-arm-kernel@...ts.infradead.org,
	Giuseppe Cavallaro <peppe.cavallaro@...com>,
	devicetree@...r.kernel.org,
	Daniel Thompson <daniel.thompson@...aro.org>,
	netdev <netdev@...r.kernel.org>, linux-kernel@...r.kernel.org,
	Kamil Lulko <rev13@...pl>,
	Andreas Färber <afaerber@...e.de>
Subject: Re: [PATCH 2/3] ARM: dts: stm32f429: Add Ethernet support

Hi Maxime,

2016-03-01 18:24 GMT+01:00 Maxime Coquelin <mcoquelin.stm32@...il.com>:
> Hi Alex,
>
>     I have made a handful of changes on your patch, let me know if this is
> ok for you.
>     If ok, it will be part of the PR I'll send tomorrow.

I agree with modifications.

Regards

alex

>
> On 02/29/2016 05:29 PM, Alexandre TORGUE wrote:
>>
>> Add Ethernet support (Synopsys MAC IP 3.50a) on stm32f429 SOC.
>>
>> Signed-off-by: Alexandre TORGUE <alexandre.torgue@...il.com>
>>
>> diff --git a/arch/arm/boot/dts/stm32f429.dtsi
>> b/arch/arm/boot/dts/stm32f429.dtsi
>> index bb7a736..af0367c 100644
>> --- a/arch/arm/boot/dts/stm32f429.dtsi
>> +++ b/arch/arm/boot/dts/stm32f429.dtsi
>> @@ -283,6 +283,26 @@
>>                                         bias-disable;
>>                                 };
>>                         };
>> +
>> +                       ethernet0_mii: mii@0 {
>> +                               mii {
>> +                                       slew-rate = <2>;
>
> I moved slew-rate property below the pinmux one for consistency with other
> pin configs in the file.
>>
>> +                                       pinmux =
>> <STM32F429_PG13_FUNC_ETH_MII_TXD0_ETH_RMII_TXD0>,
>> +
>> <STM32F429_PG14_FUNC_ETH_MII_TXD1_ETH_RMII_TXD1>,
>> +
>> <STM32F429_PC2_FUNC_ETH_MII_TXD2>,
>> +
>> <STM32F429_PB8_FUNC_ETH_MII_TXD3>,
>> +
>> <STM32F429_PC3_FUNC_ETH_MII_TX_CLK>,
>> +
>> <STM32F429_PG11_FUNC_ETH_MII_TX_EN_ETH_RMII_TX_EN>,
>> +
>> <STM32F429_PA2_FUNC_ETH_MDIO>,
>> +
>> <STM32F429_PC1_FUNC_ETH_MDC>,
>> +
>> <STM32F429_PA1_FUNC_ETH_MII_RX_CLK_ETH_RMII_REF_CLK>,
>> +
>> <STM32F429_PA7_FUNC_ETH_MII_RX_DV_ETH_RMII_CRS_DV>,
>> +
>> <STM32F429_PC4_FUNC_ETH_MII_RXD0_ETH_RMII_RXD0>,
>> +
>> <STM32F429_PC5_FUNC_ETH_MII_RXD1_ETH_RMII_RXD1>,
>> +
>> <STM32F429_PH6_FUNC_ETH_MII_RXD2>,
>> +
>> <STM32F429_PH7_FUNC_ETH_MII_RXD3>;
>> +                               };
>> +                       };
>>                 };
>>                 rcc: rcc@...23810 {
>> @@ -323,6 +343,21 @@
>>                         st,mem2mem;
>>                 };
>>   +             ethernet0: dwmac@...28000 {
>> +                       compatible = "st,stm32-dwmac", "snps,dwmac-3.50a";
>> +                       status = "disabled";
>
> I moved status property at the end of the node for consistency
>>
>> +                       reg = <0x40028000 0x8000>;
>> +                       reg-names = "stmmaceth";
>> +                       interrupts = <0 61 0>, <0 62 0>;
>
> #interrupt-cells is set to 1 in the nvic node, meaning that a single cell is
> expected here:
>
> interrupts = <61>, <62>;
>
>> +                       interrupt-names = "macirq", "eth_wake_irq";
>> +                       clock-names = "stmmaceth", "tx-clk", "rx-clk";
>> +                       clocks = <&rcc 0 25>, <&rcc 0 26>, <&rcc 0 27>;
>> +                       st,syscon = <&syscfg 0x4>;
>> +                       snps,pbl = <8>;
>> +                       snps,mixed-burst;
>> +                       dma-ranges;
>> +               };
>> +
>>                 rng: rng@...60800 {
>>                         compatible = "st,stm32-rng";
>>                         reg = <0x50060800 0x400>;
>
>
> Regards,
> Maxime
>
>