From: Jakub Kicinski <kuba@kernel.org>
To: Alfred Lee <l00g33k@gmail.com>
Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
andrew@lunn.ch, olteanv@gmail.com, davem@davemloft.net,
edumazet@google.com, pabeni@redhat.com, sgarzare@redhat.com,
AVKrasnov@sberdevices.ru
Subject: Re: [PATCH net v3] net: dsa: mv88e6xxx: Wait for EEPROM done before HW reset
Date: Wed, 16 Aug 2023 20:18:16 -0700 [thread overview]
Message-ID: <20230816201816.29bea470@kernel.org> (raw)
In-Reply-To: <20230815001323.24739-1-l00g33k@gmail.com>
On Mon, 14 Aug 2023 17:13:23 -0700 Alfred Lee wrote:
> If the switch is reset during active EEPROM transactions, as in
> just after an SoC reset after power up, the I2C bus transaction
> may be cut short leaving the EEPROM internal I2C state machine
> in the wrong state. When the switch is reset again, the bad
> state machine state may result in data being read from the wrong
> memory location causing the switch to enter unexpected mode
> rendering it inoperational.
I'll apply this instead of the v4:
https://lore.kernel.org/all/20230815220453.32035-1-l00g33k@gmail.com/
since you dropped Andrew's tag :( Please make sure you keep the tags
you were given.
next prev parent reply other threads:[~2023-08-17 3:18 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-08-15 0:13 [PATCH net v3] net: dsa: mv88e6xxx: Wait for EEPROM done before HW reset Alfred Lee
2023-08-15 1:16 ` Andrew Lunn
2023-08-17 3:18 ` Jakub Kicinski [this message]
2023-08-17 3:20 ` patchwork-bot+netdevbpf
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