imx7 GPIO pullup on pin used for special function

eoin_oconnell — Tue, 13 Jul 2021 09:40:08 GMT

Hi all,

I am using the following pins for the SIM functionality in my IMX7d.

pinctrl_sim1: sim-grp {
fsl,pins = <
MX7D_PAD_EPDC_DATA00__SIM1_PORT2_TRXD 0x30 /* SODIMM 111 5k pullup*/
MX7D_PAD_EPDC_DATA01__SIM1_PORT2_CLK 0x00 /* SODIMM 113*/
MX7D_PAD_EPDC_DATA02__SIM1_PORT2_RST_B 0x00 /* SODIMM 115*/
MX7D_PAD_EPDC_DATA03__SIM1_PORT2_SVEN 0x00 /* SODIMM 117*/
MX7D_PAD_EPDC_DATA04__SIM1_PORT2_PD 0x50 /* SODIMM 119 47k pull up*/
>;
};

I would like to know if even though the pin is being used for SIM special function if my 5k pull-up will still be activated? I do not have any option to put a pullup on my PCB, so this is my last resort

Re: imx7 GPIO pullup on pin used for special function

igorpadykov — Tue, 13 Jul 2021 11:24:03 GMT

Hi Eoin

>I would like to know if even though the pin is being used for SIM special

>function if my 5k pull-up will still be activated?

yes it is activated.

Best regards
igor

i.MX Processorsのトピックimx7 GPIO pullup on pin used for special function

imx7 GPIO pullup on pin used for special function

Re: imx7 GPIO pullup on pin used for special function