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Diffstat (limited to 'Documentation/boards/imx/nxp-imx8mm-evk.rst')
| -rw-r--r-- | Documentation/boards/imx/nxp-imx8mm-evk.rst | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/Documentation/boards/imx/nxp-imx8mm-evk.rst b/Documentation/boards/imx/nxp-imx8mm-evk.rst index f0dfc53ed0..aa70419139 100644 --- a/Documentation/boards/imx/nxp-imx8mm-evk.rst +++ b/Documentation/boards/imx/nxp-imx8mm-evk.rst @@ -85,5 +85,16 @@ installation to the eMMC boot partition requires special handling: then afterwards, the newly written boot partition is activated (This is controlled by the barebox ``mmcX.boot`` variable). +The following steps are required to write the image to the QSPI NOR flash: + + - The 32KiB preamble MMC preamble must be stripped. + + - The QSPI NOR partition ``barebox`` must be erased before the stripped + image is written. The erase size depends on the stripped image size but + always start at offset 0. + + - Write the stripped barebox image to the QSPI NOR partition ``barebox`` + at offset 0. + The ``barebox_update`` command takes care of this and need just be supplied a barebox image as argument. |