A problem for my board to change port of UART

[zhangzhiyong1]

I usd MCIMX6Q6AVT10AD in my design.

I want change my UART1,to SD3_DAT6、SD3_DAT7 port , I change the Uboot .Uboot is from mx6q_sabresd.

The file board\freescale\mx6q_sabresd\mx6q_sabresd.c

Before:

289：    //mxc_iomux_v3_setup_pad(MX6Q_PAD_CSI0_DAT10__UART1_TXD);

293：    //mxc_iomux_v3_setup_pad(MX6Q_PAD_CSI0_DAT11__UART1_RXD);

After:

                //mxc_iomux_v3_setup_pad(MX6Q_PAD_CSI0_DAT10__UART1_TXD);      

                 mxc_iomux_v3_setup_pad(MX6Q_PAD_SD3_DAT7__UART1_TXD);

                 //mxc_iomux_v3_setup_pad(MX6Q_PAD_CSI0_DAT11__UART1_RXD);

                   mxc_iomux_v3_setup_pad(MX6Q_PAD_SD3_DAT6__UART1_RXD);

When I Connected to a serial port ，My board start anomalies，The  serial port without output 。THEN I disconnect the  receiver，connect sender

，The  serial port have output.but show me the execution interrupt in half.

what`s wrong ? what can I do?

Please help me and thank you!

[igorpadykov · Accepted solution]

Hi zhangzhiyong

please follow porting guidelines in attached Porting Guide, Chapter 1
Porting U-Boot, Chapter 3 Registering a New UART Driver

Best regards
igor
-----------------------------------------------------------------------------------------------------------------------
Note: If this post answers your question, please click the Correct Answer button. Thank you!
-----------------------------------------------------------------------------------------------------------------------

[zhangzhiyong1]

I will have a try thank you