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Subject[PATCH v2 4/5] ARM: dts: sun5i: Add port E pinmux settings for mmc2
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(+)

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",
--
2.39.2
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