Hi Simon, On Thu, Apr 29, 2021 at 7:10 PM Simon Glass <[email protected]> wrote: > > Hi Igor, > > On Fri, 16 Apr 2021 at 01:10, Igor Opaniuk <[email protected]> wrote: > > > > From: Igor Opaniuk <[email protected]> > > > > Introduce RSA_SOFTWARE_EXP_TINY Kconfig option, which does not require > > DM to be enabled. This can be handy on devices, where SPL + signed > > U-Boot FIT image setup is used, where it isn't possible to enable SPL_DM > > mainly due to SRAM size constraits. > > > > For example, on iMX8MM with this option enabled and SPL_DM disabled > > it's possible to save almost 11Kb: > > That seems a lot...do you have OF_PLATDATA enabled? Nope, it's not enabled. I've managed to get these numbers when experimenting with NXP U-Boot fork, which is based on 2020.04.
I also checked a while ago iMX6ULL mainline U-Boot with this patch, and size decrease was around 4-5 Kb, which basically is also not bad (considering 64Kb SPL size limitation for this SoC). > > > > > With RSA_SOFTWARE_EXP_TINY enabled: > > spl/u-boot-spl-nodtb.bin 99824 > > > > Without: > > spl/u-boot-spl-nodtb.bin 111088 > > > > Signed-off-by: Igor Opaniuk <[email protected]> > > --- > > > > lib/rsa/Kconfig | 11 ++++++++++- > > lib/rsa/rsa-verify.c | 8 ++++---- > > 2 files changed, 14 insertions(+), 5 deletions(-) > > Regards, > Simon Thanks -- Best regards - Freundliche Grüsse - Meilleures salutations Igor Opaniuk Embedded Software Engineer T: +380 938364067 E: [email protected] W: www.foundries.io
