[06/11] arm64: dts: imx8mn-bsh-smm-s2-common: Pull Up Console UART pins

Message ID 20250512135005.1419006-7-michael@amarulasolutions.com
State New
Headers show
Series
  • Update imx8mn-bsh-smm boards
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Commit Message

Michael Nazzareno Trimarchi May 12, 2025, 1:50 p.m. UTC
From: Simon Holesch <simon.holesch@bshg.com>

The UART pins are floating, if nothing is connected. This can trigger a
Magic SysRq (e.g. reset).

Signed-off-by: Simon Holesch <simon.holesch@bshg.com>
---
 arch/arm64/boot/dts/freescale/imx8mn-bsh-smm-s2-common.dtsi | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

Patch

diff --git a/arch/arm64/boot/dts/freescale/imx8mn-bsh-smm-s2-common.dtsi b/arch/arm64/boot/dts/freescale/imx8mn-bsh-smm-s2-common.dtsi
index 00245c2fbc87b..71f84255646d8 100644
--- a/arch/arm64/boot/dts/freescale/imx8mn-bsh-smm-s2-common.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mn-bsh-smm-s2-common.dtsi
@@ -391,8 +391,8 @@  MX8MN_IOMUXC_ECSPI1_SS0_UART3_DCE_RTS_B		0x040
 
 	pinctrl_uart4: uart4grp {
 		fsl,pins = <
-			MX8MN_IOMUXC_UART4_RXD_UART4_DCE_RX		0x040
-			MX8MN_IOMUXC_UART4_TXD_UART4_DCE_TX		0x040
+			MX8MN_IOMUXC_UART4_RXD_UART4_DCE_RX		0x140
+			MX8MN_IOMUXC_UART4_TXD_UART4_DCE_TX		0x140
 		>;
 	};