Improve the readme by adding instructions on how to load U-Boot via USB and flash the eMMC.
Signed-off-by: Fabio Estevam festevam@denx.de --- doc/board/freescale/imx8mm_evk.rst | 42 +++++++++++++++++++++++++++--- 1 file changed, 38 insertions(+), 4 deletions(-)
diff --git a/doc/board/freescale/imx8mm_evk.rst b/doc/board/freescale/imx8mm_evk.rst index 7fd3d7256490..7d77f6d354f6 100644 --- a/doc/board/freescale/imx8mm_evk.rst +++ b/doc/board/freescale/imx8mm_evk.rst @@ -45,13 +45,47 @@ Build U-Boot $ export ATF_LOAD_ADDR=0x920000 $ make
-Burn the flash.bin to MicroSD card offset 33KB: +Booting from the SD card +------------------------ + +Burn the flash.bin to MicroSD card offset 33KB and u-boot.itb to +offset 384kB.
.. code-block:: bash
$sudo dd if=flash.bin of=/dev/sd[x] bs=1024 seek=33 conv=notrunc $sudo dd if=u-boot.itb of=/dev/sdc bs=1024 seek=384 conv=sync
-Boot ----- -Set Boot switch to SD boot +Booting from the eMMC +--------------------- + +Power off the board and put the boot mode switches +to Download Mode. + +Connect a USB cable between the TypeC port 1 and the host PC. + +Load flash.bin via the 'uuu' tool: + +.. code-block:: bash + + $ sudo uuu flash.bin + +Load u-boot.itb via the 'uuu' tool: + +.. code-block:: bash + + $ sudo uuu SDPV: write -f u-boot.itb -addr 0x42000000 + $ sudo uuu SDPV: jump -addr 0x42000000 + +Then U-Boot will be launched. + +Run the ums tool to flash the eMMC: + +.. code-block:: bash + + => ums 0 mmc 2 + => sudo dd if=flash.bin of=/dev/sd[x] bs=1024 seek=33; sync + => sudo dd if=u-boot.itb of=/dev/sd[x] bs=1024 seek=384; sync + +Power off the board. Put the boot switches to eMMC boot mode +and power it on.