Re: [PATCH net-next 4/4] net: macb: add support for Microchip p64h ethernet endpoint

[Simon Horman]

On Tue, Mar 03, 2026 at 10:03:18AM -0800, Charles Perry wrote:
> p64h doesn't have the USRIO register so MACB_CAPS_USRIO_DISABLED is
> used.
> 
> p64h does support PTP and has the timestamping unit so
> MACB_CAPS_GEM_HAS_PTP is used.
> 
> jumbo_max_len is set to 16383 (0x3FFF) as reported by the DCFG2 register
> bits 0..13. The JML register also has a default value of 0x3FFF.
> 
> dma_burst_length is set to 16 because that's what most other platforms
> use and it worked for me so far. There is one other mode where bursts of
> up to 256 are allowed but this might impact negatively other masters on
> the NOC.  The register default value is 4 (bursts up to 4).
> 
> Signed-off-by: Charles Perry <charles.perry@xxxxxxxxxxxxx>

Reviewed-by: Simon Horman <horms@xxxxxxxxxx>