Subject: Re: [PATCH net 1/4] net/fsl: xgmac_mdio: Add workaround for erratum A-009885

From: Tobias Waldekranz <[email-masked]>
Date: Tue, 18 Jan 2022 09:40:48 +0100

On Sun, Jan 16, 2022 at 22:15, Tobias Waldekranz <[email-masked]> wrote:
> Once an MDIO read transaction is initiated, we must read back the data
> register within 16 MDC cycles after the transaction completes. Outside
> of this window, reads may return corrupt data.
>
> Therefore, disable local interrupts in the critical section, to
> maximize the probability that we can satisfy this requirement.
>
> Signed-off-by: Tobias Waldekranz <[email-masked]>

Fixes: d55ad2967d89 ("powerpc/mpc85xx: Create dts components for the FSL QorIQ DPAA FMan")