| Date | Sat, 15 Apr 2023 18:46:24 +0100 | From | Jonathan McDowell <> | Subject | [PATCH 2/3] ARM: dts: sun5i: Add port E pinmux settings for mmc2 |
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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 | 8 ++++++++ 1 file changed, 8 insertions(+)
diff --git a/arch/arm/boot/dts/sun5i.dtsi b/arch/arm/boot/dts/sun5i.dtsi index 250d6b87ab4d..e4922506ce22 100644 --- a/arch/arm/boot/dts/sun5i.dtsi +++ b/arch/arm/boot/dts/sun5i.dtsi @@ -517,6 +517,14 @@ mmc2_4bit_pc_pins: mmc2-4bit-pc-pins { bias-pull-up; }; + 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", -- 2.39.2
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