| Message ID | 7949169f581cab37175602188f44bc26e79a45c0.1683719613.git.noodles@earth.li |
|---|---|
| State | Superseded |
| Headers | show |
| Series | Minor device-tree additions for C.H.I.P | expand |
Dne sreda, 10. maj 2023 ob 14:02:02 CEST je Jonathan McDowell napisal(a): > These alternate pins for mmc2 are brought out to the 40 pin U14 header > on the C.H.I.P and can be used to add an external MMC device with a 4 > bit interface. See > > https://byteporter.com/ntc-chip-micro-sd-slot/ > > for further details on how. > > Signed-off-by: Jonathan McDowell <noodles@earth.li> Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com> Best regards, Jernej
diff --git a/arch/arm/boot/dts/sun5i.dtsi b/arch/arm/boot/dts/sun5i.dtsi index 250d6b87ab4d..ab7f675aeec4 100644 --- a/arch/arm/boot/dts/sun5i.dtsi +++ b/arch/arm/boot/dts/sun5i.dtsi @@ -517,6 +517,15 @@ mmc2_4bit_pc_pins: mmc2-4bit-pc-pins { bias-pull-up; }; + /omit-if-no-ref/ + mmc2_4bit_pe_pins: mmc2-4bit-pe-pins { + pins = "PE4", "PE5", "PE6", "PE7", + "PE8", "PE9"; + function = "mmc2"; + drive-strength = <30>; + bias-pull-up; + }; + mmc2_8bit_pins: mmc2-8bit-pins { pins = "PC6", "PC7", "PC8", "PC9", "PC10", "PC11", "PC12", "PC13",
These alternate pins for mmc2 are brought out to the 40 pin U14 header on the C.H.I.P and can be used to add an external MMC device with a 4 bit interface. See https://byteporter.com/ntc-chip-micro-sd-slot/ for further details on how. Signed-off-by: Jonathan McDowell <noodles@earth.li> --- arch/arm/boot/dts/sun5i.dtsi | 9 +++++++++ 1 file changed, 9 insertions(+)