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doc: board: phytec: phycore-am6: Describe UART based boot

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Describe how to boot via UART.

Signed-off-by: Wadim Egorov <w.egorov@phytec.de>
This commit is contained in:
Wadim Egorov 2024-06-20 14:05:54 +02:00 • committed by Tom Rini
parent 747ae74456
commit d36394cff8
2 changed files with 36 additions and 0 deletions
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17
doc/board/phytec/phycore-am62x.rst
View file

@ -118,6 +118,23 @@ tiboot3.bin, tispl.bin and u-boot.img are stored on the uSD card.
fatload mmc 1 ${loadaddr} u-boot.img
mtd write ospi.u-boot ${loadaddr} 0 ${filesize}
UART based boot
---------------
To boot the board via UART, set the switches to UART mode and connect to the
micro USB port labeled as "Debug UART". After power-on the build artifacts
needs to be uploaded one by one with a tool like sz.
Example bash script sequence for running on a Linux host PC feeding all boot
artifacts needed to the device. Assuming the host uses /dev/ttyUSB0 as
the main domain serial port:
.. prompt:: bash $
stty -F /dev/ttyUSB0 115200
sb --xmodem tiboot3.bin > /dev/ttyUSB0 < /dev/ttyUSB0
sb --ymodem tispl.bin > /dev/ttyUSB0 < /dev/ttyUSB0
sb --ymodem u-boot.img > /dev/ttyUSB0 < /dev/ttyUSB0
Boot Modes
----------

19
doc/board/phytec/phycore-am64x.rst
View file

@ -119,6 +119,25 @@ tiboot3.bin, tispl.bin and u-boot.img are stored on the uSD card.
fatload mmc 1 ${loadaddr} u-boot.img
mtd write ospi.u-boot ${loadaddr} 0 ${filesize}
UART based boot
---------------
To boot the board via UART, set the switches to UART mode and connect to the
micro USB port labeled as "Debug UART". After power-on the build artifacts
needs to be uploaded one by one with a tool like sz.
Example bash script sequence for running on a Linux host PC feeding all boot
artifacts needed to the device. Assuming the host uses /dev/ttyUSB0 as
the main domain serial port:
.. prompt:: bash $
stty -F /dev/ttyUSB0 115200
sb --xmodem tiboot3.bin > /dev/ttyUSB0 < /dev/ttyUSB0
# Resend tiboot3.bin a 2nd time due to ErrataID:i2331
sb --xmodem tiboot3.bin > /dev/ttyUSB0 < /dev/ttyUSB0
sb --ymodem tispl.bin > /dev/ttyUSB0 < /dev/ttyUSB0
sb --ymodem u-boot.img > /dev/ttyUSB0 < /dev/ttyUSB0
Boot Modes
----------