Booting large images on iMX.8-evk board

Stefan Kalkowski stefan.kalkowski at
Fri Mar 6 13:14:54 CET 2020

Hi Chris,

thank you for sharing this. Your contribution is very much welcome!

Best regards

On Fri, Mar 06, 2020 at 12:44:15PM +0100, Chris Hofer wrote:
> Hi everyone,
> I recently wanted to test the Armv8 virtualization introduced in the 19.11
> release on hardware. I ran into a limitation of the preinstalled u-boot on
> the i.MX8-evk board.
> After I loaded the uImage to a reasonable address (e.g. 0x60000000), I
> executed it with bootm 0x60000000. However, the preinstalled u-boot refused
> to execute it, since a config-parameter (CONFIG_SYS_BOOTM_LEN) limits the
> max. size of a bootable image and mine was too large.
> Stefan confirmed this issue and pointed me to position [1] in the release
> notes 20.02; it shows how to build a modified u-boot version without this
> (and other) limitation(s) and flash it to an SD card. Once u-boot is on the
> card, one may have to change the default boot-mode of the board from
> internal flash to SD card, by changing the boot mode pads on the board
> according to [2].
> I just wanted to share this with you, in case you run into the same issue.
> Best,
> Chris Hofer
> [1]
> [2]
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Stefan Kalkowski
Genode labs |

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