[U-Boot] Maximum size of u-boot.imx for TBS2910 board

Marek Vasut marex at denx.de
Thu Nov 21 22:01:43 UTC 2019

On 11/21/19 10:59 PM, Heinrich Schuchardt wrote:
> On 11/21/19 9:12 PM, Tom Rini wrote:
>> On Thu, Nov 21, 2019 at 09:09:29PM +0100, Heinrich Schuchardt wrote:
>>> Hello Soeren,
>>> when trying to add support for function key support in the USB keyboard
>>> driver u-boot.imx for the TBS2910 surpassed the maximum size for
>>> u-boot.imx.
>>> https://travis-ci.org/marex/u-boot-usb/builds/614059004
>>> Do you remember why on the TBS2910 board this size is limited to
>>> 0x5fc00? Other i.MX6 boards like the Wandboard allow a much larger
>>> u-boot.imx.
>>> The limit is defined here:
>>> include/configs/tbs2910.h:80:
>>> #define CONFIG_BOARD_SIZE_LIMIT 392192 /* (CONFIG_ENV_OFFSET - 1024) */
>>> Could the value CONFIG_ENV_OFFSET=0x60000 be enlarged?
>>> Many i.MX6 defconfigs use CONFIG_ENV_OFFSET=0xC0000.
>> The nature of these boards (aimed at end users) means that we just do
>> not want to / cannot really move the stored environment.  Thanks!
> Another possibility would be to reduce the image size by using
> CONFIG_REGEX=n which should be fine for a board with only one supported
> network interface.

But the board was fine before your patchset got applied and this is just
a workaround for added bloat, which reduces functionality. I dislike
trading functionality for bloat, sorry.

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