Hi all,
I have a SIM card that is connected to my imx7D processor on the following pins (through a level shifter IC):
pinctrl_sim1: sim-grp {
fsl,pins = <
MX7D_PAD_EPDC_DATA00__SIM1_PORT2_TRXD 0x00 /* SODIMM 111*/
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 have the card detect pin from my sim connector connected to MX7D_PAD_EPDC_DATA04__SIM1_PORT2_PD, when the card is present it pulls this pin down to ground.
To define the SIM in the device tree I tried this:
&sim1 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_sim1>;
clocks = <&clks IMX7D_SIM1_ROOT_CLK>;
assigned-clock-rates = <240000000>;
pinctrl-assert-gpios = <&gpio2 4 GPIO_ACTIVE_HIGH>;
port = <2>;
sven_high_active;
status = "okay";
};
Unfortunately the sim peripheral does not show up in /dev/mxc_sim, however I do measure sensible voltages on the SIM pins and my card detect hardware is working.
I also added this extra define into my Kernel build, CONFIG_MXC_SIMv2 = y.
Does anybody know what I might have done wrong?
