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78 lines
1.3 KiB
Plaintext
78 lines
1.3 KiB
Plaintext
/dts-v1/;
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/plugin/;
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/* Enable SDIO from MMC interface via various GPIO groups */
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/{
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compatible = "brcm,bcm2835";
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fragment@0 {
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target = <&mmcnr>;
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__overlay__ {
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status = "disabled";
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};
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};
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fragment@1 {
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target = <&mmc>;
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sdio_ovl: __overlay__ {
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pinctrl-0 = <&sdio_ovl_pins>;
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pinctrl-names = "default";
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non-removable;
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bus-width = <4>;
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status = "okay";
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};
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};
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fragment@2 {
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target = <&gpio>;
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__overlay__ {
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sdio_ovl_pins: sdio_ovl_pins {
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brcm,pins = <22 23 24 25 26 27>;
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brcm,function = <7>; /* ALT3 = SD1 */
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brcm,pull = <0 2 2 2 2 2>;
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};
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};
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};
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fragment@3 {
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target = <&sdio_ovl_pins>;
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__dormant__ {
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brcm,pins = <22 23 24 25>;
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brcm,pull = <0 2 2 2>;
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};
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};
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fragment@4 {
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target = <&sdio_ovl_pins>;
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__dormant__ {
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brcm,pins = <34 35 36 37>;
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brcm,pull = <0 2 2 2>;
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};
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};
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fragment@5 {
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target = <&sdio_ovl_pins>;
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__dormant__ {
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brcm,pins = <34 35 36 37 38 39>;
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brcm,pull = <0 2 2 2 2 2>;
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};
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};
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fragment@6 {
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target-path = "/aliases";
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__overlay__ {
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mmc1 = "/soc/mmc@7e300000";
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};
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};
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__overrides__ {
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poll_once = <&sdio_ovl>,"non-removable?";
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bus_width = <&sdio_ovl>,"bus-width:0";
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sdio_overclock = <&sdio_ovl>,"brcm,overclock-50:0";
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gpios_22_25 = <0>,"=3";
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gpios_34_37 = <0>,"=4";
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gpios_34_39 = <0>,"=5";
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};
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};
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