[PATCH 1/1] doc: qemu: debug UART settings for QEMU ARM virt

Heinrich Schuchardt xypron.glpk at gmx.de
Wed Sep 16 00:17:55 CEST 2020


Provide the settings for the debug UART on the QEMU ARM virt board.

Signed-off-by: Heinrich Schuchardt <xypron.glpk at gmx.de>
---
 doc/board/emulation/qemu-arm.rst | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/doc/board/emulation/qemu-arm.rst b/doc/board/emulation/qemu-arm.rst
index ca751d4af4..8d7fda10f1 100644
--- a/doc/board/emulation/qemu-arm.rst
+++ b/doc/board/emulation/qemu-arm.rst
@@ -80,3 +80,13 @@ can be enabled with the following command line parameters:
     -drive if=none,file=disk.img,id=mydisk -device nvme,drive=mydisk,serial=foo

 These have been tested in QEMU 2.9.0 but should work in at least 2.5.0 as well.
+
+Debug UART
+----------
+
+The debug UART on the ARM virt board uses these settings::
+
+    CONFIG_DEBUG_UART=y
+    CONFIG_DEBUG_UART_PL010=y
+    CONFIG_DEBUG_UART_BASE=0x9000000
+    CONFIG_DEBUG_UART_CLOCK=0
--
2.28.0



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