[U-Boot] rk3288: 32KB SPL size restriction

Jagan Teki jagannadh.teki at gmail.com
Mon Aug 14 04:33:58 UTC 2017

Hi Simon,

On Mon, Aug 14, 2017 at 3:06 AM, Simon Glass <sjg at chromium.org> wrote:
> Hi Jagan,
> On 10 August 2017 at 03:07, Jagan Teki <jagannadh.teki at gmail.com> wrote:
>> Hi Simon/Philipp or any,
>> I believe rk3288 has 20KB BootRom and 100KB internal SRAM and current
>> u-boot can archive the maximum size of u-boot-spl-dtb.bin which the
>> boot ROM will read is 32KB, do we have any possibility to increase the
>> SPL size here.
>> # ./tools/mkimage -n rk3288 -T rksd -d ./spl/u-boot-spl-dtb.bin out.img
>> Warning: SPL image is too large (size 0x9000) and will not boot
>> Error: image verification failed
>> I tried to increase the spl_size from spl_infos (on tools/rkcommon.c)
>> but not able to boot.
> I thought all boards were OK at present. Which board is this? Also
> which toolchain are you using? There was a bug that bloating the
> static data a bit.

Board similar to firefly-rk3288 and not using
ROCKCHIP_SPL_BACK_TO_BROM. Observed this when I try to add falcon mode
support which eventually increased the SPL size.

toolchain: arm-linux-gnueabi-gcc with version 6.3.1 20170109 (Linaro
GCC 6.3-2017.02)

Jagan Teki
Free Software Engineer | www.openedev.com
U-Boot, Linux | Upstream Maintainer
Hyderabad, India.

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