From: Christophe Roullier <christophe.roullier@foss.st.com>
To: Andrew Lunn <andrew+netdev@lunn.ch>,
"David S . Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
Maxime Coquelin <mcoquelin.stm32@gmail.com>,
Alexandre Torgue <alexandre.torgue@foss.st.com>,
Russell King <rmk+kernel@armlinux.org.uk>, <linusw@kernel.org>,
<antonio.borneo@foss.st.com>,
Maxime Chevallier <maxime.chevallier@bootlin.com>,
Vladimir Oltean <vladimir.oltean@nxp.com>,
Christophe Roullier <christophe.roullier@foss.st.com>
Cc: <netdev@vger.kernel.org>,
<linux-stm32@st-md-mailman.stormreply.com>,
<linux-arm-kernel@lists.infradead.org>,
<linux-kernel@vger.kernel.org>
Subject: [PATCH 3/4] arm64: dts: st: increase deassert of PHY reset in stm32mp257f-ev1
Date: Tue, 4 Aug 2026 15:20:51 +0200 [thread overview]
Message-ID: <20260804132052.205273-4-christophe.roullier@foss.st.com> (raw)
In-Reply-To: <20260804132052.205273-1-christophe.roullier@foss.st.com>
The RTL8211F has a PHYRSTB pin to reset the chip.
For a complete PHY reset, this pin must be asserted low for
at least 10ms for the internal regulator.
Wait for at least 80ms (for internal circuits setting time) before
accessing the PHY register.
All registers will return to default values after a hardware reset
Signed-off-by: Christophe Roullier <christophe.roullier@foss.st.com>
---
arch/arm64/boot/dts/st/stm32mp257f-ev1.dts | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm64/boot/dts/st/stm32mp257f-ev1.dts b/arch/arm64/boot/dts/st/stm32mp257f-ev1.dts
index 14e033f365e3..a41ab55aa8cb 100644
--- a/arch/arm64/boot/dts/st/stm32mp257f-ev1.dts
+++ b/arch/arm64/boot/dts/st/stm32mp257f-ev1.dts
@@ -247,7 +247,7 @@ phy0_eth2: ethernet-phy@1 {
compatible = "ethernet-phy-id001c.c916";
reg = <1>;
reset-assert-us = <10000>;
- reset-deassert-us = <300>;
+ reset-deassert-us = <80000>;
reset-gpios = <&gpiog 6 GPIO_ACTIVE_LOW>;
};
};
--
2.43.0
next prev parent reply other threads:[~2026-08-04 13:21 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-04 13:20 [PATCH 0/4] Some improve for STM32MP2X and fix for stmac_main Christophe Roullier
2026-08-04 13:20 ` [PATCH 1/4] arm64: dts: st: add 3v3 regulator to ethernet on stm32mp235f-dk Christophe Roullier
2026-08-04 13:20 ` [PATCH 2/4] arm64: dts: st: add 3v3 regulator to ethernet on stm32mp257f-dk Christophe Roullier
2026-08-04 13:20 ` Christophe Roullier [this message]
2026-08-04 13:20 ` [PATCH 4/4] net: stmmac: manage error case during stmmac_dvr_probe Christophe Roullier
2026-08-04 14:16 ` Maxime Chevallier
2026-08-05 9:08 ` Christophe ROULLIER
2026-08-04 17:45 ` Andrew Lunn
2026-08-05 6:39 ` Christophe ROULLIER
2026-08-05 11:59 ` Andrew Lunn
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20260804132052.205273-4-christophe.roullier@foss.st.com \
--to=christophe.roullier@foss.st.com \
--cc=alexandre.torgue@foss.st.com \
--cc=andrew+netdev@lunn.ch \
--cc=antonio.borneo@foss.st.com \
--cc=davem@davemloft.net \
--cc=edumazet@google.com \
--cc=kuba@kernel.org \
--cc=linusw@kernel.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-stm32@st-md-mailman.stormreply.com \
--cc=maxime.chevallier@bootlin.com \
--cc=mcoquelin.stm32@gmail.com \
--cc=netdev@vger.kernel.org \
--cc=pabeni@redhat.com \
--cc=rmk+kernel@armlinux.org.uk \
--cc=vladimir.oltean@nxp.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox