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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>
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Heinrich Schuchardt 2020-07-29 19:23:38 +02:00 committed by Andes
parent 137dc153fd
commit 3a85e03f83
1 changed files with 10 additions and 0 deletions
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10
doc/board/sipeed/maix.rst
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@ -262,6 +262,16 @@ Boot Sequence
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
^^^^^^^^^^^^^^^^^^^