From 66decf16446eeb8d3b2da93d0b0086a583bc17bf Mon Sep 17 00:00:00 2001 From: Lee Leahy Date: Thu, 4 Feb 2016 11:21:33 -0800 Subject: Documentation: x86 Enable Serial Output Document the steps necessary to enable serial output TEST=None Change-Id: Ifc0e700d7ef54fb1e28ca9bca34b94cccd3633ac Signed-off-by: Lee Leahy Reviewed-on: https://review.coreboot.org/13444 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth --- Documentation/Intel/Board/board.html | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) (limited to 'Documentation/Intel/Board') diff --git a/Documentation/Intel/Board/board.html b/Documentation/Intel/Board/board.html index 8de854b64f..d50ff4e74f 100644 --- a/Documentation/Intel/Board/board.html +++ b/Documentation/Intel/Board/board.html @@ -14,6 +14,7 @@

  1. Required Files
    2. +
  2. Enable Serial Output
@@ -77,6 +78,30 @@ +
+

Enable Serial Output

+

+ Use the following steps to enable serial output: +

+
    +
  1. Implement the car_mainboard_pre_console_init routine in the com_init.c + file: +
      +
    1. Power on and enable the UART controller
      2. +
    2. Connect the UART receive and transmit data lines to the + appropriate SoC pins +
      3. +
    +
    2. +
  2. Add Makefile.inc +
      +
    1. Add com_init.c to romstage
      2. +
    +
    3. +
+ + +

Modified: 31 January 2016

-- cgit v1.2.3