imx8mm-evk: Generate a single bootable flash.bin again

After the conversion to binman in commit 8996e6b7c6 ("imx8mm_evk: switch
to use binman to pack images"), it is necessary to flash both flash.bin and
u-boot.itb to get a bootable system. Prior to this commit, only flash.bin
was needed.

Such new requirement breaks existing distro mechanisms to generate the
final binary because the extra u-boot.itb is now required.

Generate a final flash.bin that can be used again as a single
bootable binary to keep the original behavior.

After this change the SPL binary is called spl.bin, which is a more
descriptive name for its purpose, and can still be used standalone
(for example, for secure boot purposes).

Also update imx8mm_evk.rst to remove the u-boot.itb copy step.

Signed-off-by: Fabio Estevam <festevam@denx.de>
Reviewed-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Reviewed-by: Heiko Schocher <hs@denx.de>
Reviewed-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Reviewed-by: Heiko Thiery <heiko.thiery@gmail.com>
This commit is contained in:
Fabio Estevam 2021-08-23 09:56:42 -03:00 committed by Stefano Babic
parent 936bf17263
commit 028abfd9b1
3 changed files with 19 additions and 3 deletions

View file

@ -150,7 +150,9 @@
}; };
flash { spl {
filename = "spl.bin";
mkimage { mkimage {
args = "-n spl/u-boot-spl.cfgout -T imx8mimage -e 0x7e1000"; args = "-n spl/u-boot-spl.cfgout -T imx8mimage -e 0x7e1000";
@ -217,4 +219,19 @@
}; };
}; };
}; };
imx-boot {
filename = "flash.bin";
pad-byte = <0x00>;
spl: blob-ext@1 {
offset = <0x0>;
filename = "spl.bin";
};
uboot: blob-ext@2 {
offset = <0x57c00>;
filename = "u-boot.itb";
};
};
}; };

View file

@ -6,4 +6,4 @@
#define __ASSEMBLY__ #define __ASSEMBLY__
BOOT_FROM sd BOOT_FROM sd
LOADER mkimage.flash.mkimage 0x7E1000 LOADER u-boot-spl-ddr.bin 0x7E1000

View file

@ -50,7 +50,6 @@ Burn the flash.bin to MicroSD card offset 33KB:
.. code-block:: bash .. code-block:: bash
$sudo dd if=flash.bin of=/dev/sd[x] bs=1024 seek=33 conv=notrunc $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 Boot
---- ----