linux-kernel - Re: [PATCH v2 0/2] Add macb support for SiFive FU540-C000

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Message-ID: <CAJ2_jOH2X6+CcNCruxX0aeCzPnjcGuv-X1Q4eESsY6PyW1LViA@mail.gmail.com>
Date:   Mon, 17 Jun 2019 10:13:05 +0530
From:   Yash Shah <yash.shah@...ive.com>
To:     David Miller <davem@...emloft.net>, devicetree@...r.kernel.org,
        netdev <netdev@...r.kernel.org>, linux-kernel@...r.kernel.org,
        linux-riscv@...ts.infradead.org
Cc:     Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Nicolas Ferre <nicolas.ferre@...rochip.com>,
        Palmer Dabbelt <palmer@...ive.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Petr Štetiar <ynezz@...e.cz>,
        Sachin Ghadi <sachin.ghadi@...ive.com>
Subject: Re: [PATCH v2 0/2] Add macb support for SiFive FU540-C000

On Mon, Jun 17, 2019 at 9:49 AM 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.
>
> Future patches may add support for monitoring or controlling other IP
> boundary signals.
>
> This patchset is mostly based on work done by
> Wesley Terpstra <wesley@...ive.com>
>
> This patchset is based on Linux v5.2-rc1 and tested on HiFive Unleashed
> board with additional board related patches needed for testing can be
> found at dev/yashs/ethernet branch of:

Correction in branch name: dev/yashs/ethernet_v2

> https://github.com/yashshah7/riscv-linux.git
>
> Change History:
> V2:
> - Change compatible string from "cdns,fu540-macb" to "sifive,fu540-macb"
> - Add "MACB_SIFIVE_FU540" in Kconfig to support SiFive FU540 in macb
>   driver. This is needed because on FU540, the macb driver depends on
>   SiFive GPIO driver.
> - Avoid writing the result of a comparison to a register.
> - Fix the issue of probe fail on reloading the module reported by:
>   Andreas Schwab <schwab@...e.de>
>
> Yash Shah (2):
>   macb: bindings doc: add sifive fu540-c000 binding
>   macb: Add support for SiFive FU540-C000
>
>  Documentation/devicetree/bindings/net/macb.txt |   3 +
>  drivers/net/ethernet/cadence/Kconfig           |   6 ++
>  drivers/net/ethernet/cadence/macb_main.c       | 129 +++++++++++++++++++++++++
>  3 files changed, 138 insertions(+)
>
> --
> 1.9.1
>