TX2 SD Card Read-only

Hello,I used the carrier board which designed by myself,but the tf card can’t write. There isn’t ‘wp’ pin in the card, so I float the ‘wp’ pin on the TX2 SOM[internal pull-up to 1.8V].Can you help me to resolve this problem,thx!

If the pin is floating, try changing the pinmux to use an internal processor pull-down instead.

WP=HIGH(1) => read-only/write-protected
WP=LOW(0) => read-write