doc: riscv: debug UART for MAIX
Provide the required settings for the debug UART.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Sean Anderson <seanga2@gmail.com>
diff --git a/doc/board/sipeed/maix.rst b/doc/board/sipeed/maix.rst
index c235cb4..b1894f3 100644
--- a/doc/board/sipeed/maix.rst
+++ b/doc/board/sipeed/maix.rst
@@ -262,6 +262,16 @@
stage.
8. The boot hart jumps to ``0x80000000``.
+Debug UART
+^^^^^^^^^^
+
+The Debug UART is provided with the following settings::
+
+ CONFIG_DEBUG_UART=y
+ CONFIG_DEBUG_UART_SIFIVE=y
+ CONFIG_DEBUG_UART_BASE=0x38000000
+ CONFIG_DEBUG_UART_CLOCK=390000000
+
Resetting the board
^^^^^^^^^^^^^^^^^^^