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author | Hugo Villeneuve <hvilleneuve@dimonoff.com> | 2023-07-04 09:48:00 -0400 |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-08-11 12:08:10 +0200 |
commit | 5841d3d0c3525e699c2eb60cce0bfa3eb03eccc0 (patch) | |
tree | de031d940300062a74d07a82582b4358e48066df /arch | |
parent | a24f67b71ad265e4008ae88f09e5bc039afb49df (diff) | |
download | linux-5841d3d0c3525e699c2eb60cce0bfa3eb03eccc0.tar.gz |
arm64: dts: imx8mn-var-som: add missing pull-up for onboard PHY reset pinmux
[ Upstream commit 253be5b53c2792fb4384f8005b05421e6f040ee3 ] For SOMs with an onboard PHY, the RESET_N pull-up resistor is currently deactivated in the pinmux configuration. When the pinmux code selects the GPIO function for this pin, with a default direction of input, this prevents the RESET_N pin from being taken to the proper 3.3V level (deasserted), and this results in the PHY being not detected since it is held in reset. Taken from RESET_N pin description in ADIN13000 datasheet: This pin requires a 1K pull-up resistor to AVDD_3P3. Activate the pull-up resistor to fix the issue. Fixes: ade0176dd8a0 ("arm64: dts: imx8mn-var-som: Add Variscite VAR-SOM-MX8MN System on Module") Signed-off-by: Hugo Villeneuve <hvilleneuve@dimonoff.com> Reviewed-by: Fabio Estevam <festevam@gmail.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'arch')
-rw-r--r-- | arch/arm64/boot/dts/freescale/imx8mn-var-som.dtsi | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm64/boot/dts/freescale/imx8mn-var-som.dtsi b/arch/arm64/boot/dts/freescale/imx8mn-var-som.dtsi index d053ef302fb8..faafefe562e4 100644 --- a/arch/arm64/boot/dts/freescale/imx8mn-var-som.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8mn-var-som.dtsi @@ -351,7 +351,7 @@ MX8MN_IOMUXC_ENET_RXC_ENET1_RGMII_RXC 0x91 MX8MN_IOMUXC_ENET_RX_CTL_ENET1_RGMII_RX_CTL 0x91 MX8MN_IOMUXC_ENET_TX_CTL_ENET1_RGMII_TX_CTL 0x1f - MX8MN_IOMUXC_GPIO1_IO09_GPIO1_IO9 0x19 + MX8MN_IOMUXC_GPIO1_IO09_GPIO1_IO9 0x159 >; }; |