Hi, I’m trying to boot with my Jetson Nano production module and a customised carrier board from the SDCARD. With cold boot the system works fine. But with shutdown -r now the system show an error like: [IMG_8669.HEIC] [IMG_8670.HEIC] I have my Tegra210-porg-p3448-common.dtsi : sdhci@700b0400 …

The parameters I share to you is called “nvidia,vmmc-always-on”, not only vmmc-always-on.

Hi BARO, As expected, your log is full of sdcard error. That is the stability issue as we are talking about. There is full of sdmmc error from timestemp 6 ~ 13. [ 6.263594] Root device found: mmcblk1p1 [ 6.270673] Found dev node: /dev/mmcblk1p1 [ 6.284516] mmc1: Data CRC error [ 6.289…

I’m attaching the schematic and tegra210-porg-p3448-common for your evaluation. At the moment when I turn on the board the SD CARD have reasonable speed less than 30 seconds. [SDCARD_schematic] tegra210-porg-p3448-common.dtsi (22.1 KB)

I made this modification in tegra210-porg-plugin-manager.dtsi. fragement@9 { ids = “<3448-0000-300”, “<3448-0002-300” , “>=3448-0003-000”; override@0 { target = <&max77620_ldo6>; overlay { status = “disabled”; }; }; override@1 { target = <&sdhci2>; overlay { status = “okay”; vmmc-supply…

Hi @BARO , Please do not modify tegra210-porg-plugin-manager.dtsi. You should not touch this if you don’t understand what this is doing. Just prevent to use those plugin-manager stuff. This is usually doing board dts control for our internal board. Also, please use dtc tool to directly convert …

I’m attaching the converted dtb. thanks for your support. tegra210-p3448-0002-p3449-0000-b00.dts (349.1 KB)

Can you try to add nvidia,vmmc-always-on to your sdhci?

BTW, generally we ask customer to assign vdd-3v3-sd, which is regulator@3 to the vmmc-supply. But in your device tree, you give regulator@2, which is vdd-3v3-sys to vmmc-supply.

[image] WayneWWW: vmmc-always-on Sorry my ignorance. Where I need to modify it? Because never I assigned this parameter.

sdhci@700b0400 is the only node that we will apply change to now.

Booting from SD Card with a Jetson Nano production module

Robotics & Edge Computing Jetson Systems Jetson Nano

BARO June 18, 2021, 11:15am 18

I modified it following this: MicroSD card not detected on Jetson Nano production module - #14 by jetson_user

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Booting from SD Card with a Jetson Nano production module

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