[PATCH] arm64: dts: imx8mp-debix-model-a: Disable EEE for 1000T

[Russell King (Oracle)]

On Mon, Oct 27, 2025 at 09:27:49AM +0200, Laurent Pinchart wrote:
> I've tried to diagnose the issue by adding interrupt counters to
> dwmac4_irq_status(), counting interrupts for each bit of GMAC_INT_STATUS
> (0x00b0). Bit RGSMIIIS (0) is the only one that seems linked to the
> interrupts storm, increasing at around 10k per second. However, the
> corresponding bit in GMAC_INT_EN (0x00b4) is *not* set.

I'll add to my comments earlier, because it may help you work out
what's going on.

RGSMIIS will be set when the LNKSTS bit (bit 19) of 0xf8 changes
state. RGSMIIS is only cleared by reading this register. So, something
else to test would be to do a dummy read of this register and see
whether the interrupt storm still has the RGSMIIS bit set.

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