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| author | Bastian Krause <bst@pengutronix.de> | 2019-06-04 18:53:07 +0200 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2019-06-07 08:38:49 +0200 |
| commit | c5328f17b48b0778c90220b26b808a96413f5e91 (patch) | |
| tree | 3b7f8a542bb761e7583cb342be20ca7f094e3204 /Documentation | |
| parent | 3f3b1ac7a9fc62d47516ba8ac6170616b537b397 (diff) | |
| download | barebox-c5328f17b48b0778c90220b26b808a96413f5e91.tar.gz barebox-c5328f17b48b0778c90220b26b808a96413f5e91.tar.xz | |
doc: boards: imx: document image creation
Signed-off-by: Bastian Krause <bst@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/boards/imx.rst | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/Documentation/boards/imx.rst b/Documentation/boards/imx.rst index 27d0123c87..abd9c76151 100644 --- a/Documentation/boards/imx.rst +++ b/Documentation/boards/imx.rst @@ -31,6 +31,21 @@ the i.MX images are generated with the ``scripts/imx/imx-image`` tool. Normally it's not necessary to call this tool manually, it is executed automatically at the end of the build process. +Required entries for an i.MX image in ``images/Makefile.imx`` are for example: + +.. code-block:: none + + pblb-$(CONFIG_MACH_MYBOARD) += start_imx6dl_myboard + CFG_start_imx6dl_myboard.pblb.imximg = $(board)/myboard/flash-header-imx6dl-myboard.imxcfg + FILE_barebox-imx6dl-myboard.img = start_imx6dl_myboard.pblb.imximg + image-$(CONFIG_MACH_MYBOARD) += barebox-imx6dl-myboard.img + +The first line defines the entry function of the pre-bootloader. +This function must be defined in the board's ``lowlevel.c``. +The second line describes the flash header to be used for the image, which is +then compiled into an imximg file. +The prebootloader is then added to the final barebox image. + The images generated by the build process can be directly written to an SD card: |