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-rw-r--r--doc/board/emulation/qemu-riscv.rst10
1 files changed, 10 insertions, 0 deletions
diff --git a/doc/board/emulation/qemu-riscv.rst b/doc/board/emulation/qemu-riscv.rst
index ae998810c87..782f37251c3 100644
--- a/doc/board/emulation/qemu-riscv.rst
+++ b/doc/board/emulation/qemu-riscv.rst
@@ -132,3 +132,13 @@ An attached disk can be emulated in RISC-V virt machine by adding::
-device ide-hd,drive=mydisk,bus=ahci.0
You will have to run 'scsi scan' to use it.
+
+Debug UART
+----------
+
+The following settings provide a debug UART for the virt machine::
+
+ CONFIG_DEBUG_UART=y
+ CONFIG_DEBUG_UART_NS16550=y
+ CONFIG_DEBUG_UART_BASE=0x10000000
+ CONFIG_DEBUG_UART_CLOCK=3686400