On Mon, Oct 28, 2024 at 09:24:46PM +0100, Jan Petrous via B4 Relay wrote:
> From: "Jan Petrous (OSS)" <jan.petrous@xxxxxxxxxxx>
>
> The RGMII interface supports three data rates: 10/100 Mbps
> and 1 Gbps. These speeds correspond to clock frequencies
> of 2.5/25 MHz and 125 MHz, respectively.
>
> Many Ethernet drivers, including glues in stmmac, follow
> a similar pattern of converting RGMII speed to clock frequency.
>
> To simplify code, define the helper rgmii_clock(speed)
> to convert connection speed to clock frequency.
>
> Suggested-by: Russell King (Oracle) <rmk+kernel@xxxxxxxxxxxxxxx>
> Signed-off-by: Jan Petrous (OSS) <jan.petrous@xxxxxxxxxxx>
Reviewed-by: Andrew Lunn <andrew@xxxxxxx>
Andrew
