SD card boot fail: XFSBL_ERROR_SD_F_OPEN

A query of the Xilinx forums could be helpful here:

https://forums.xilinx.com/t5/Xilinx-Evaluation-Boards/zcu102-SD-card-boot-fail-XFSBL-ERROR-SD-F-OPEN/td-p/751573

https://forums.xilinx.com/t5/ACAP-and-SoC-Boot-and/SD-card-boot-fail-XFSBL-ERROR-SD-F-OPEN/td-p/1062487

Are you using a level shifter on your carrier between the XCZU7EV device and the SD card?  How is the SD clock terminated?

--Tom

We didn't use level shifter between the XCZU7EV device and the SD card. Our design is no different from the carrier board like below.

How is the SD card boot interface configured?  SD 2.0 or 3.0?  A configuration of SD 2.0 (4-bit) is known to work for the Avnet UltraZed-EV SOM + EV Carrier.

--Tom

Thanks your reply. Our configuration is below.

I notice your SD1 interface does not enable the WP pin on MIO44.  I believe this is required for the FSBL to boot.  Please consider making this change and rebuild, make a new boot.bin, etc.

--Tom

I have tested with wp enable boot image. Still we couldn't boot from sd card.

We didn't use level shifter too, How did you solve this problem finnaly?  3Q

Have you probed the SD_CLK at the SD Card connector? The SD_CLK termination resistor needs to be physically placed near the Zynq device, and then the value should be tuned to provide the cleanest clock at the SD Card.

Make sure you have read the SD/SDIO section of Chapter 4 in UG583 as a list of 8 PCB-related items relative to SD interface are included.

Bryan

Have you probed the SD_CLK at the SD Card connector? The SD_CLK termination resistor needs to be physically placed near the Zynq device, and then the value should be tuned to provide the cleanest clock at the SD Card.

Make sure you have read the SD/SDIO section of Chapter 4 in UG583 as a list of 8 PCB-related items relative to SD interface are included.

Bryan

Thank you for your reply.The only difference between  my board and the early  PCB revision  is  the   level shifter   is not on my board. In other words,i use the bank voltage 3V3,and the early revision is 1V8,

Are you using the SD card that came with your UltraZed-EV SOM, or a different SD card?

What does the device tree description look like for the SD card interface?  You may need to remove the no-1-8-v directive.  This is the SD card node description from the devicetree for the UltraZed-EV from the Avnet meta-avnet git repository showing the edit to be made:

/* SD1 with level shifter */

&sdhci1 {

status = "okay";

max-frequency = <50000000>;

no-1-8-v;

}

https://github.com/Avnet/meta-avnet/blob/2020.2/recipes-bsp/device-tree/files/uz7ev-evcc/system-bsp.dtsi#L119

--Tom

3Q，we will try！

Were you able to solve this issue?
I am facing same problem, let us know how you fixed it. Thanks