How to solve the Boot Issues while booting from SD Card using G35M SOM?

FPGA Boards & Solutions MPSoC Boards & Solutions
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  • Please ensure that the SD card is properly formatted and partitioned with a VFAT and an EXT4 partition.
  • Copy the BOOT.bin, system.dtb and Image files to the VFAT partition and extract the root filesystem to the EXT4 partition.
  • Now, execute the below commands in U-Boot to boot the board from the SD card with the EXT4 partition. (The same procedure for eMMC is described in the Software UM under the section “EXT4 Filesystem Customization”).

IWG35M> setenv sdbootdev 1

IWG35M> setenv sdboot ‘mmc dev $sdbootdev && mmcinfo; echo Copying Linux from mmc$sdbootdev to RAM… && load mmc $sdbootdev ${fdt_addr_r} system.dtb && load mmc $sdbootdev ${kernel_addr_r} Image && booti ${kernel_addr_r} - ${fdt_addr_r}’

IWG35M> setenv bootargs ‘earlycon clk_ignore_unused earlyprintk root=/dev/mmcblk1p2 rootfstype=ext4 rw rootwait’

IWG35M> printenv

IWG35M> saveenv

IWG35M> boot

The GPIO-controlled regulator dynamically switching the I/O voltage is set between these levels as required.

  • When the GPIO is set to 1, the SD card operates at 1.8V

  • When the GPIO is set to 0, the SD card operates at 3.3V.

Please make sure to use the SD cards validated by Xilinx. For more details on the recommended SD cards, refer to the following link:

“AMD Customer Community.

For further inquiries, please get in touch with mktg@iwave-global.com

Please find the detailed G35M product information in the below link,