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43 lines
1.3 KiB
Diff
43 lines
1.3 KiB
Diff
From 1edeed0e3a0961e9c15e66f8cc5764d043b45b03 Mon Sep 17 00:00:00 2001
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From: Phil Elwell <phil@raspberrypi.org>
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Date: Wed, 7 Nov 2018 17:43:10 +0000
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Subject: [PATCH 439/454] overlays: uart0 - return GPIOs 14 and 15 to inputs
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In the event that alternate pins are used (only useful on Compute
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Modules), return the standard pins to inputs to avoid double-mapping
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them.
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See: https://www.raspberrypi.org/forums/viewtopic.php?p=1388713#p1316977
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Signed-off-by: Phil Elwell <phil@raspberrypi.org>
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---
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arch/arm/boot/dts/overlays/uart0-overlay.dts | 13 +++++++------
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1 file changed, 7 insertions(+), 6 deletions(-)
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--- a/arch/arm/boot/dts/overlays/uart0-overlay.dts
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+++ b/arch/arm/boot/dts/overlays/uart0-overlay.dts
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@@ -17,16 +17,17 @@
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target = <&gpio>;
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__overlay__ {
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uart0_pins: uart0_pins {
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- brcm,pins = <14 15>;
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- brcm,function = <4>; /* alt0 */
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- brcm,pull = <0 2>;
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+ brcm,pins = <14 15 14 15>;
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+ brcm,function = <0 0 4 4>; /* alt0 */
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+ brcm,pull = <0 0 0 2>;
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};
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};
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};
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__overrides__ {
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- txd0_pin = <&uart0_pins>,"brcm,pins:0";
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- rxd0_pin = <&uart0_pins>,"brcm,pins:4";
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- pin_func = <&uart0_pins>,"brcm,function:0";
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+ txd0_pin = <&uart0_pins>,"brcm,pins:8";
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+ rxd0_pin = <&uart0_pins>,"brcm,pins:12";
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+ pin_func = <&uart0_pins>,"brcm,function:8",
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+ <&uart0_pins>,"brcm,function:12";
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};
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};
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