target/linux/brcm2708/patches-4.4/0203-pi3-miniuart-bt-overlay-Correct-and-clarify-info.patch

   1 From 36b8544e144679820d51eaa2df304037cde3d790 Mon Sep 17 00:00:00 2001
   2 From: Phil Elwell <phil@raspberrypi.org>
   3 Date: Thu, 17 Mar 2016 10:16:16 +0000
   4 Subject: [PATCH] pi3-miniuart-bt-overlay: Correct and clarify info
   5
   6 Signed-off-by: Phil Elwell <phil@raspberrypi.org>
   7 ---
   8  arch/arm/boot/dts/overlays/README                      | 6 ++++--
   9  arch/arm/boot/dts/overlays/pi3-miniuart-bt-overlay.dts | 6 ++++--
  10  2 files changed, 8 insertions(+), 4 deletions(-)
  11
  12 --- a/arch/arm/boot/dts/overlays/README
  13 +++ b/arch/arm/boot/dts/overlays/README
  14 @@ -511,8 +511,10 @@ Name:   pi3-miniuart-bt
  15  Info:   Switch Pi3 Bluetooth function to use the mini-UART (ttyS0) and restore
  16          UART0/ttyAMA0 over GPIOs 14 & 15. Note that this may reduce the maximum
  17          usable baudrate.
  18 -        N.B. It is also necessary to edit /lib/systemd/system/hciuart.server
  19 -        and replace ttyAMA0 with ttyS0.
  20 +        N.B. It is also necessary to edit /lib/systemd/system/hciuart.service
  21 +        and replace ttyAMA0 with ttyS0, unless you have a system with udev rules
  22 +        that create /dev/serial0 and /dev/serial1, in which case use
  23 +        /dev/serial1 instead because it will always be correct.
  24  Load:   dtoverlay=pi3-miniuart-bt
  25  Params: <None>
  26
  27 --- a/arch/arm/boot/dts/overlays/pi3-miniuart-bt-overlay.dts
  28 +++ b/arch/arm/boot/dts/overlays/pi3-miniuart-bt-overlay.dts
  29 @@ -5,8 +5,10 @@
  30     UART0/ttyAMA0 over GPIOs 14 & 15. Note that this may reduce the maximum
  31     usable baudrate.
  32
  33 -   It is also necessary to edit /lib/systemd/system/hciuart.server and
  34 -   replace ttyAMA0 with ttyS0.
  35 +   It is also necessary to edit /lib/systemd/system/hciuart.service and
  36 +   replace ttyAMA0 with ttyS0, unless you have a system with udev rules
  37 +   that create /dev/serial0 and /dev/serial1, in which case use /dev/serial1
  38 +   instead because it will always be correct.
  39
  40     If cmdline.txt uses the alias serial0 to refer to the user-accessable port
  41     then the firmware will replace with the appropriate port whether or not