Hi Marek
Adding Christophe Roullier
On 1/10/20 1:28 AM, Marek Vasut wrote:
> Add missing 'eth-ck' clock to the ethernet node. These clock are used to
> generate external clock signal for the PHY in case 'st,eth_ref_clk_sel'
> is specified.
>
> Signed-off-by: Marek Vasut <ma...@denx.de>
> Cc: Patrick Delaunay <patrick.delau...@st.com>
> Cc: Patrice Chotard <patrice.chot...@st.com>
> ---
> arch/arm/dts/stm32mp157c.dtsi | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/arch/arm/dts/stm32mp157c.dtsi b/arch/arm/dts/stm32mp157c.dtsi
> index 6c670cf9a3..41aea75213 100644
> --- a/arch/arm/dts/stm32mp157c.dtsi
> +++ b/arch/arm/dts/stm32mp157c.dtsi
> @@ -1404,11 +1404,13 @@
> clock-names = "stmmaceth",
> "mac-clk-tx",
> "mac-clk-rx",
> + "eth-ck",
> "ethstp",
> "syscfg-clk";
> clocks = <&rcc ETHMAC>,
> <&rcc ETHTX>,
> <&rcc ETHRX>,
> + <&rcc ETHCK_K>,
> <&rcc ETHSTP>,
> <&rcc SYSCFG>;
> st,syscon = <&syscfg 0x4>;
Adding this clock is a particular case, it should be added in the board DT
file, not in the SoC DT one.
Our ethernet expert ( Christophe -in CC) is surprised that you don't need the
following pin:
<STM32_PINMUX('G', 8, AF2)>, /* ETH_RMII_ETHCK */
To confirm, can you describe your ethernet config ?
Thanks
