Hello,
When I search for “non-removable”, I get several results as shown in the following picture.
Do I have to delete all of them here or do I have to select and delete them?
can i know??
Thank you.
If you search for vmmc-supply, you will find several. I don’t know what to change.
sdhci@700b0600 {
vqmmc-supply = <&max77620_sd3>;
vmmc-supply = <&vdd_3v3>;
};
sdhci@700b0400 {
vqmmc-supply = <&max77620_sd3>;
vmmc-supply = <&vdd_3v3>;
};
sdhci@700b0200 {
vqmmc-supply = <&max77620_sd3>;
vmmc-supply = <&vdd_3v3>;
};
sdhci@700b0000 {
vqmmc-supply = <&max77620_ldo2>;
vmmc-supply = <&en_vdd_sd>;
Hi,
-
non-removable already has nothing to do with your issue here… I already told in previous comment. This is already removed by you.
-
Why do you still ask which sdhci to modify after we alraedy had 104 comments in this topic… We are debugging the sdhci@700b0400…
1 Like
Hi
sorry.
I’m not used to it, so I keep getting confused.
I’m going to try it again slowly.
Thank you.
Hi
Another user’s sdcard is enabled. Please refer to his device tree and schematic.
1 Like
Hello,
I am trying to test again by connecting the sdcard slot to the devkit carrier board.
Modify the dtsi file to build dtb and apply it to jetson nano to check dmesg, right?
Thank you.
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Hi Hodu,
Your hardware design is different from mjnm’s board. Thus, you cannot write a gpio in the vdd-3v3-sd/regulator@3.
This regulator needs a “regulator-always-on;” and does not need a gpio field there.
Other properties in sdhci@700b400 are needed.
1 Like
Hello,
p3448_vdd_3v3_sd: regulator@3 {
compatible = “regulator-fixed-sync”;
reg = <3>;
regulator-name = “vdd-3v3-sd”;
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
//gpio = <&gpio TEGRA_GPIO(Z, 3) 0>;
gpio = <&gpio TEGRA_GPIO(BB, 0) 0>; //-> delete?
enable-active-high;
regulator-boot-on; // → regulator-always-on?
vin-supply = <&p3448_vdd_3v3_sys>;
};
Thank you.
Hello,
When I checked again, the power was directly connected to 3V3 without a load switch.
Thank you.
What is the cd-gpio written in the device tree?
1 Like
Hello,
How to check cd-gpios?
Once installed on the devkit carrier board, the sd card slot seems to work. The sd card is recognized.
However, if I insert the sd card after booting, it is not recognized.
It has to be booted with the sd card inserted to be recognized.
Thank you.
cd-gpios = <0x5b 0xa8 0x0>;
The problem is <0x5b 0xa8 0x0> is not a human readable text… Are you sure this matches the pin you are using on the hardware?
1 Like
Hello,
That’s what I found in the dts file.
Can you tell me how to check if the value of cd-gpios matches the hardware?
Thank you.
What did you write in your own dts source?
1 Like