[PATCH v3 2/2] phy: cadence-torrent: Add PCIe + XAUI multilink configuration for 100MHz refclk
Andrew Lunn
andrew at lunn.ch
Mon Jan 12 05:05:10 PST 2026
On Mon, Jan 12, 2026 at 11:16:31AM +0530, Siddharth Vadapalli wrote:
> From: Swapnil Jakhade <sjakhade at cadence.com>
>
> Add register sequences for PCIe + XAUI multilink configuration for
> 100MHz reference clock.
>
> The register sequences are fetched from a table by indexing entries based
> on unique 'keys' generated by the Bitwise OR defined below:
> REFCLK0_RATE | REFCLK1_RATE | LINK0_TYPE | LINK1_TYPE | SSC_TYPE
>
> As of now, LINK_TYPE is a 3-bit value corresponding to the PHY type.
> With the introduction of TYPE_XAUI, we need a 4-bit value to represent
> the LINK_TYPE as TYPE_XAUI has the numerical value 8. Hence, extend the
> LINKx_MASK macros to 4-bit masks. While at it, extend REFCLKx_MASK macros
> as well to 4-bit masks to support reference clock frequencies that will be
> added in the future.
>
> Adjust the 'LINKx_SHIFT' and the 'REFCLKx_SHIFT' macros to account for
> the aforementioned changes made to the masks.
>
> Signed-off-by: Swapnil Jakhade <sjakhade at cadence.com>
> [s-vadapalli: elaborated on changes made to macros in the commit message]
> Signed-off-by: Siddharth Vadapalli <s-vadapalli at ti.com>
Reviewed-by: Andrew Lunn <andrew at lunn.ch>
Andrew
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