[U-Boot] Arria 10 binary too large

[Phil Reid]

G'day Joe,

On 8/07/2017 03:46, Joe Hermaszewski wrote:
> The uboot binary generated with `make socfpga_arria10_config` is too large
> for Intel's `mkpimage` tool to consume.
> 
> u-boot.bin weighs in at 242508 bytes.
> 
> The maximum binary size supported by the `mkpimage` tool (distributed with
> Intel's SoC EDS suite) is 204796 bytes.
> 
> Note that this image also has to include the device tree blob, which for my
> design is about 4k.
> 
> I'm sure that someone must have tested this binary, it would be handy to
> know either what configuration options were necessary to slim u-boot down
> enough, or how mkpimage might be being used differently.
> 
> For reference, my build steps are as follows:
> 
> To generate u-boot.bin:
> 
> ```
>      export CROSS_COMPILE=${soc-toolchain}/bin/arm-linux-gnueabihf-
>      make mrproper
>      make socfpga_arria10_config
>      make
> ```
> 
> To generate uboot combined with the device tree blob:
> 
> ```
>        cat u-boot.bin devicetree.dtb > u-boot_w_dtb.bin
>        mkpimage \
>          --header-version 1 \
>          -o uboot_w_dtb-mkpimage.bin \
>          u-boot_w_dtb.bin \
>          u-boot_w_dtb.bin \
>          u-boot_w_dtb.bin \
>          u-boot_w_dtb.bin
> ```
> 
> mkpimage fails with the output 'Image size must not be more than 204796
> bytes'
> 
> I get this behaviour with `mkpimage version 17.0 (build 290)` and revision
> `7e09145` of u-boot.
> 


I've got a Cyclone V system and I'm using the tool builtin to uboot.
mkimage I think does the work in uboot.

Anyway after building uboot I end up with a u-boot-with-spl.sfp

That's ready to copy to the sdcard.


-- 
Regards
Phil Reid