You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
43 lines
1.3 KiB
Diff
43 lines
1.3 KiB
Diff
6 years ago
|
From 1edeed0e3a0961e9c15e66f8cc5764d043b45b03 Mon Sep 17 00:00:00 2001
|
||
|
|
From: Phil Elwell <phil@raspberrypi.org>
|
||
|
|
Date: Wed, 7 Nov 2018 17:43:10 +0000
|
||
|
|
Subject: [PATCH 439/454] overlays: uart0 - return GPIOs 14 and 15 to inputs
|
||
|
|
|
||
|
|
In the event that alternate pins are used (only useful on Compute
|
||
|
|
Modules), return the standard pins to inputs to avoid double-mapping
|
||
|
|
them.
|
||
|
|
|
||
|
|
See: https://www.raspberrypi.org/forums/viewtopic.php?p=1388713#p1316977
|
||
|
|
|
||
|
|
Signed-off-by: Phil Elwell <phil@raspberrypi.org>
|
||
|
|
---
|
||
|
|
arch/arm/boot/dts/overlays/uart0-overlay.dts | 13 +++++++------
|
||
|
|
1 file changed, 7 insertions(+), 6 deletions(-)
|
||
|
|
|
||
|
|
--- a/arch/arm/boot/dts/overlays/uart0-overlay.dts
|
||
|
|
+++ b/arch/arm/boot/dts/overlays/uart0-overlay.dts
|
||
|
|
@@ -17,16 +17,17 @@
|
||
|
|
target = <&gpio>;
|
||
|
|
__overlay__ {
|
||
|
|
uart0_pins: uart0_pins {
|
||
|
|
- brcm,pins = <14 15>;
|
||
|
|
- brcm,function = <4>; /* alt0 */
|
||
|
|
- brcm,pull = <0 2>;
|
||
|
|
+ brcm,pins = <14 15 14 15>;
|
||
|
|
+ brcm,function = <0 0 4 4>; /* alt0 */
|
||
|
|
+ brcm,pull = <0 0 0 2>;
|
||
|
|
};
|
||
|
|
};
|
||
|
|
};
|
||
|
|
|
||
|
|
__overrides__ {
|
||
|
|
- txd0_pin = <&uart0_pins>,"brcm,pins:0";
|
||
|
|
- rxd0_pin = <&uart0_pins>,"brcm,pins:4";
|
||
|
|
- pin_func = <&uart0_pins>,"brcm,function:0";
|
||
|
|
+ txd0_pin = <&uart0_pins>,"brcm,pins:8";
|
||
|
|
+ rxd0_pin = <&uart0_pins>,"brcm,pins:12";
|
||
|
|
+ pin_func = <&uart0_pins>,"brcm,function:8",
|
||
|
|
+ <&uart0_pins>,"brcm,function:12";
|
||
|
|
};
|
||
|
|
};
|