linux-kernel - Re: [PATCH v7 0/5] clk: add driver for the SiFive FU740

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Message-ID: <87h7kukzy4.fsf@igel.home>
Date:   Mon, 29 Mar 2021 12:37:55 +0200
From:   Andreas Schwab <schwab@...ux-m68k.org>
To:     Zong Li <zong.li@...ive.com>
Cc:     Paul Walmsley <paul.walmsley@...ive.com>,
        Palmer Dabbelt <palmer@...belt.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Pragnesh Patel <pragnesh.patel@...nfive.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        Michael Turquette <mturquette@...libre.com>,
        "linux-kernel@...r.kernel.org List" <linux-kernel@...r.kernel.org>,
        linux-clk@...r.kernel.org,
        linux-riscv <linux-riscv@...ts.infradead.org>
Subject: Re: [PATCH v7 0/5] clk: add driver for the SiFive FU740

On Mär 29 2021, Zong Li wrote:

> Yes, I could get the network problem by using the defconfig you
> provided, the system hung up when executing 'ifconfig' immediately
> after installing macb driver module, the network can work by only
> reverting the commit 732374a0b440d9a79c8412f318a25cd37ba6f4e2. But the
> network is fine by using the mainline's defconfig, this is a little
> bit weird, I will check that and try to find the difference.

My guess would be that it is an init dependency problem between the phy
driver and the clock driver, which causes the clock to be enabled too
late.

Andreas.

-- 
Andreas Schwab, schwab@...ux-m68k.org
GPG Key fingerprint = 7578 EB47 D4E5 4D69 2510  2552 DF73 E780 A9DA AEC1
"And now for something completely different."