linux-kernel - Re: [PATCH 0/2] net: macb: Add support for SiFive FU540-C000

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Date:   Thu, 23 May 2019 14:49:16 +0200
From:   Andreas Schwab <schwab@...e.de>
To:     Yash Shah <yash.shah@...ive.com>
Cc:     davem@...emloft.net, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-riscv@...ts.infradead.org,
        devicetree@...r.kernel.org, robh+dt@...nel.org,
        mark.rutland@....com, nicolas.ferre@...rochip.com,
        palmer@...ive.com, aou@...s.berkeley.edu, ynezz@...e.cz,
        paul.walmsley@...ive.com, sachin.ghadi@...ive.com
Subject: Re: [PATCH 0/2] net: macb: Add support for SiFive FU540-C000

On Mai 23 2019, Yash Shah <yash.shah@...ive.com> wrote:

> On FU540, the management IP block is tightly coupled with the Cadence
> MACB IP block. It manages many of the boundary signals from the MACB IP
> This patchset controls the tx_clk input signal to the MACB IP. It
> switches between the local TX clock (125MHz) and PHY TX clocks. This
> is necessary to toggle between 1Gb and 100/10Mb speeds.

Doesn't work for me:

[  365.842801] macb: probe of 10090000.ethernet failed with error -17

Andreas.

-- 
Andreas Schwab, SUSE Labs, schwab@...e.de
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