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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>
Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Link: https://lore.kernel.org/r/7949169f581cab37175602188f44bc26e79a45c0.1683719613.git.noodles@earth.li
Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>
This commit is contained in:
Jonathan McDowell
2023-05-10 13:02:02 +01:00
committed by Jernej Skrabec
parent efb09e4ea8
commit c7ea52ed61
1 changed files with 9 additions and 0 deletions
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9
arch/arm/boot/dts/sun5i.dtsi
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@@ -517,6 +517,15 @@
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",