mmc in kernel not support ?

[salara1960]

Good day.
How can I make support for mmc-card (on sdio2) ?
I edited the file stm32f769-disco.dtb, added the following lines to it:
aliases {
mmc0 = &sdio2;
serial0 = &usart1;
};

&sdio2 {
status="okay";
cd-gpios = <&gpiod 7 0>;
cd-inverted;
pinctrl-names = "default", "opendrain";
pinctrl-1 = <&sdio_pins_b>;
pinctrl-1 = <&sdio_pins_od_b>;
bus-width = <4>;
max-frequency = <25000000>;
};

and in the file stm32f746.dtb:
sdio_pins_b: sdio_pins_b@0 {
pins {
pinmux = <STM32_PINMUX('G', 9, AF10)>, //<STM32F769_PG9_FUNC_SDMMC2_D0>,
<STM32_PINMUX('G', 10, AF10)>, //<STM32F769_PG10_FUNC_SDMMC2_D1>,
<STM32_PINMUX('B', 3, AF10)>,//<STM32F769_PB3_FUNC_SDMMC2_D2>,
<STM32_PINMUX('B', 4, AF10)>,//<STM32F769_PB4_FUNC_SDMMC2_D3>,
<STM32_PINMUX('D', 6, AF10)>,//<STM32F769_PD6_FUNC_SDMMC2_CLK>,
<STM32_PINMUX('D', 7, AF10)>;//<STM32F769_PD7_FUNC_SDMMC2_CMD>;
drive-push-pull;
slew-rate = <2>;
};
};

sdio_pins_od_b: sdio_pins_od_b@0 {
pins1 {
pinmux = <STM32_PINMUX('G', 9, AF10)>, //<STM32F769_PG9_FUNC_SDMMC2_D0>,
<STM32_PINMUX('G', 10, AF10)>, //<STM32F769_PG10_FUNC_SDMMC2_D1>,
<STM32_PINMUX('B', 3, AF10)>, //<STM32F769_PB3_FUNC_SDMMC2_D2>,
<STM32_PINMUX('B', 4, AF10)>, //<STM32F769_PB4_FUNC_SDMMC2_D3>,
<STM32_PINMUX('D', 6, AF10)>; //<STM32F769_PD6_FUNC_SDMMC2_CLK>;
drive-push-pull;
slew-rate = <2>;
};
pins2 {
pinmux = <STM32_PINMUX('D', 7, AF10)>; //<STM32F769_PD7_FUNC_SDMMC2_CMD>;
drive-open-drain;
slew-rate = <2>;
};
};

sdio2: sdio2@40011c00 {
compatible = "st,stm32f7-sdio";
reg=<0x40011c00 0x400>;
clocks = <&rcc 0 167>;
interrupts = <103>;
status="enabled";
pinctrl-0 = <&sdio_pins_b>;
pinctrl-1 = <&sdio_pins_od_b>;
pinctrl-names = "default", "opendrain";
max-frequency = <24000000>;
};

but the kernel does not "see" this device.
I did something wrong in the description of this device.
What exactly, can you suggest?

[pauleffect90]

did you manage to get it working?

[salara1960]

"did you manage to get it working?" - no, I found a project in which mmс support is done correctly -> https://github.com/adrianalin/STM32F769I-disco_Buildroot