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how to mux uart7(null modem)

Question asked by wang wang on Jul 29, 2016

pinctrl_uart7: uart7grp {

                        fsl,pins = <

                              MX6UL_PAD_ENET2_RX_EN__UART7_DCE_TX     0x1b0b1

                              MX6UL_PAD_ENET2_TX_DATA0__UART7_DCE_RX  0x1b0b1

                        > ;

                };

 

configure like this , and disable the pinctrl_enet2  interface . but no TX our when

i am using the echo "test" >/dev/ttymxc6 .

 

but opposite the uart6 success like this configure :

pinctrl_uart6: uart6grp {

                        fsl,pins = <

                               MX6UL_PAD_ENET2_RX_DATA0__UART6_DCE_TX   0x1b0b1

                               MX6UL_PAD_ENET2_RX_DATA1__UART6_DCE_RX   0x1b0b1                            

                        > ;

                } ;

 

how can we enable the uart7  , anybody help me ?

Original Attachment has been moved to: imx6ul-14x14-evk.dts.zip

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