The compute module on the 6ULL-EVK has two DIP switches for choosing the boot mode. Instead of looking them up in the vendor documentation[1] each time, document them here. [1]: https://media.digikey.com/pdf/Data%20Sheets/Freescale%20Semi/i.MX_6UL_EVK_QSG.pdf Signed-off-by: Ahmad Fatoum <a.fatoum@xxxxxxxxxxxxxx> --- Documentation/boards/imx/nxp-imx6ull-evk.rst | 62 ++++++++++++++++++++ 1 file changed, 62 insertions(+) create mode 100644 Documentation/boards/imx/nxp-imx6ull-evk.rst diff --git a/Documentation/boards/imx/nxp-imx6ull-evk.rst b/Documentation/boards/imx/nxp-imx6ull-evk.rst new file mode 100644 index 000000000000..04d35ba73f6d --- /dev/null +++ b/Documentation/boards/imx/nxp-imx6ull-evk.rst @@ -0,0 +1,62 @@ +NXP i.MX6ULL EVK Evaluation Board +================================= + +Board comes with: + +* 512MiB of DDR3L SDRAM +* 256 MB Quad SPI Flash + + +Boot Configuration +================== + +The NXP i.MX6ULL EVK Evaluation Board has two switches responsible for +configuring bootsource/boot mode: + + * SW602 for selecting appropriate BOOT_MODE + * SW601 for selecting appropriate boot medium + +In order to select internal boot set SW602 as follows:: + + +-----+ + | | + | O | | <--- on = high level + | | | | + | | O | <--- off = low level + | | + | 1 2 | + +-----+ + +Bootsource is the QSPI:: + + +---------+ + | | + | | | | | | + | | | | | | <---- QSPI + | O O O O | + | | + | 1 2 3 4 | + +---------+ + +Bootsource is the MicroSD:: + + +---------+ + | | + | | | O | | + | | | | | | <---- MicroSD + | O O | O | + | | + | 1 2 3 4 | + +---------+ + + +Serial boot SW602 setting needed for ``imx-usb-loader`` is as follows:: + + +-----+ + | | + | | O | <--- on = high level + | | | | + | O | | <--- off = low level + | | + | 1 2 | + +-----+ -- 2.20.1 _______________________________________________ barebox mailing list barebox@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/barebox
