[PATCH RFC 3/9] net: stmmac: qcom-ethqos: fix RGMII_ID mode to use DLL bypass

[Mohd Ayaan Anwar]

Hi Maxim,

On Mon, Aug 31, 2026 at 07:01:04PM +0200, Maxime Chevallier wrote:
> 
> I've been able to get my hands on a qualcomm devkit for ipq8064 :
> 
> Compex WPQ864 6A02, has the IPQ8064 connected to a QCA8337 switch
> through both the ports, one using RGMII (no ID), and one with SGMII.
> 
> The DT is downstream, in OpenWRT :
> 
> https://git.openwrt.org/openwrt/openwrt/tree/target/linux/ipq806x/dts/qcom-ipq8064-ap148.dts#n198
> 
> happy to help in some testing as well if needed, this board is going
> in my CI for stmmac stuff.
> 

That's great. I think this board uses the dwmac-ipq806x driver? It would
be interesting to know if it also does the whole "use RGMII so that the
MAC can manage the delay" thing. While I don't have access to IPQ boards
I will try to figure out what this driver is doing (hopefully I can
track down some documentation about the "NSS_COMMON_CLK_GATE*" registers
it programs.

Nice to hear about your expanding arsenal of stmmac boards :).

	Ayaan