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- From 36b8544e144679820d51eaa2df304037cde3d790 Mon Sep 17 00:00:00 2001
- From: Phil Elwell <phil@raspberrypi.org>
- Date: Thu, 17 Mar 2016 10:16:16 +0000
- Subject: [PATCH] pi3-miniuart-bt-overlay: Correct and clarify info
- Signed-off-by: Phil Elwell <phil@raspberrypi.org>
- ---
- arch/arm/boot/dts/overlays/README | 6 ++++--
- arch/arm/boot/dts/overlays/pi3-miniuart-bt-overlay.dts | 6 ++++--
- 2 files changed, 8 insertions(+), 4 deletions(-)
- --- a/arch/arm/boot/dts/overlays/README
- +++ b/arch/arm/boot/dts/overlays/README
- @@ -511,8 +511,10 @@ Name: pi3-miniuart-bt
- Info: Switch Pi3 Bluetooth function to use the mini-UART (ttyS0) and restore
- UART0/ttyAMA0 over GPIOs 14 & 15. Note that this may reduce the maximum
- usable baudrate.
- - N.B. It is also necessary to edit /lib/systemd/system/hciuart.server
- - and replace ttyAMA0 with ttyS0.
- + N.B. It is also necessary to edit /lib/systemd/system/hciuart.service
- + and replace ttyAMA0 with ttyS0, unless you have a system with udev rules
- + that create /dev/serial0 and /dev/serial1, in which case use
- + /dev/serial1 instead because it will always be correct.
- Load: dtoverlay=pi3-miniuart-bt
- Params: <None>
-
- --- a/arch/arm/boot/dts/overlays/pi3-miniuart-bt-overlay.dts
- +++ b/arch/arm/boot/dts/overlays/pi3-miniuart-bt-overlay.dts
- @@ -5,8 +5,10 @@
- UART0/ttyAMA0 over GPIOs 14 & 15. Note that this may reduce the maximum
- usable baudrate.
-
- - It is also necessary to edit /lib/systemd/system/hciuart.server and
- - replace ttyAMA0 with ttyS0.
- + It is also necessary to edit /lib/systemd/system/hciuart.service and
- + replace ttyAMA0 with ttyS0, unless you have a system with udev rules
- + that create /dev/serial0 and /dev/serial1, in which case use /dev/serial1
- + instead because it will always be correct.
-
- If cmdline.txt uses the alias serial0 to refer to the user-accessable port
- then the firmware will replace with the appropriate port whether or not
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