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d=linuxfoundation.org; s=korg; t=1654629075; bh=F5vc2z5PopVkJ8A8MZC70EPgQB/h1zcxegZ4uIkJRU4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=pmTdBiNpeqPYixelxqRPqaUQTFP0fKf+8Nb8tJxfhY6DvjHj7vKEj2hrnDc8vvH2u O23J6JweUkYRCWcqJOe84c4CZXSkQqxqRzLaUxbZuSs+LZtxZ99Ckjv8bAGsukuwfV +1sJyaEa2Xz4d0/x3G2dxipQ5KzYTXViQaOxLMr8= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Marek Vasut , Alexandre Torgue , Patrice Chotard , Patrick Delaunay , linux-stm32@st-md-mailman.stormreply.com, Sasha Levin Subject: [PATCH 5.18 561/879] ARM: dts: stm32: Fix PHY post-reset delay on Avenger96 Date: Tue, 7 Jun 2022 19:01:19 +0200 Message-Id: <20220607165019.146590485@linuxfoundation.org> X-Mailer: git-send-email 2.36.1 In-Reply-To: <20220607165002.659942637@linuxfoundation.org> References: <20220607165002.659942637@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Marek Vasut [ Upstream commit ef2d90708883f4025a801feb0ba8411a7a4387e1 ] Per KSZ9031RNX PHY datasheet FIGURE 7-5: POWER-UP/POWER-DOWN/RESET TIMING Note 2: After the de-assertion of reset, wait a minimum of 100 μs before starting programming on the MIIM (MDC/MDIO) interface. Add 1ms post-reset delay to guarantee this figure. Fixes: 010ca9fe500bf ("ARM: dts: stm32: Add missing ethernet PHY reset on AV96") Signed-off-by: Marek Vasut Cc: Alexandre Torgue Cc: Patrice Chotard Cc: Patrick Delaunay Cc: linux-stm32@st-md-mailman.stormreply.com To: linux-arm-kernel@lists.infradead.org Signed-off-by: Alexandre Torgue Signed-off-by: Sasha Levin --- arch/arm/boot/dts/stm32mp15xx-dhcor-avenger96.dtsi | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/boot/dts/stm32mp15xx-dhcor-avenger96.dtsi b/arch/arm/boot/dts/stm32mp15xx-dhcor-avenger96.dtsi index 61e17f44ce81..76c54b006d87 100644 --- a/arch/arm/boot/dts/stm32mp15xx-dhcor-avenger96.dtsi +++ b/arch/arm/boot/dts/stm32mp15xx-dhcor-avenger96.dtsi @@ -141,6 +141,7 @@ compatible = "snps,dwmac-mdio"; reset-gpios = <&gpioz 2 GPIO_ACTIVE_LOW>; reset-delay-us = <1000>; + reset-post-delay-us = <1000>; phy0: ethernet-phy@7 { reg = <7>; -- 2.35.1