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authorLee Leahy <leroy.p.leahy@intel.com>2016-02-04 11:21:33 -0800
committerLeroy P Leahy <leroy.p.leahy@intel.com>2016-02-05 22:57:03 +0100
commit66decf16446eeb8d3b2da93d0b0086a583bc17bf (patch)
tree040939e04a81a15e7f6aa3ffee9eff0cde5792cf /Documentation/Intel/Board/board.html
parent7e0078b990b7b498391505fb5c492ff7ed8e54cb (diff)
downloadcoreboot-66decf16446eeb8d3b2da93d0b0086a583bc17bf.tar.xz
Documentation: x86 Enable Serial Output
Document the steps necessary to enable serial output TEST=None Change-Id: Ifc0e700d7ef54fb1e28ca9bca34b94cccd3633ac Signed-off-by: Lee Leahy <leroy.p.leahy@intel.com> Reviewed-on: https://review.coreboot.org/13444 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth <martinroth@google.com>
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diff --git a/Documentation/Intel/Board/board.html b/Documentation/Intel/Board/board.html
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@@ -14,6 +14,7 @@
</p>
<ol>
<li><a href="#RequiredFiles">Required Files</a></li>
+ <li>Enable <a href="#SerialOutput">Serial Output</a></li>
</ol>
@@ -78,6 +79,30 @@
<hr>
+<h1><a name="SerialOutput">Enable Serial Output</a></h1>
+<p>
+ Use the following steps to enable serial output:
+</p>
+<ol>
+ <li>Implement the car_mainboard_pre_console_init routine in the com_init.c
+ file:
+ <ol type="A">
+ <li>Power on and enable the UART controller</li>
+ <li>Connect the UART receive and transmit data lines to the
+ appropriate SoC pins
+ </li>
+ </ol>
+ </li>
+ <li>Add Makefile.inc
+ <ol type="A">
+ <li>Add com_init.c to romstage</li>
+ </ol>
+ </li>
+</ol>
+
+
+
+<hr>
<p>Modified: 31 January 2016</p>
</body>
</html> \ No newline at end of file