[U-Boot] [PATCH v2 0/5] Patches to reduce TPL code size

Heiko Stuebner
2017-04-04T10:43:21Z

Am Dienstag, 4. April 2017, 11:34:52 CEST schrieb Heiko StÃ¼bner:
> Am Sonntag, 2. April 2017, 09:50:27 CEST schrieb Simon Glass:
> > With the rockchip 'rock' board some build and code size problems have come
> > to light with TPL. This series provides a few ideas to improve things.
>
> great stuff!
>
> With these patches applied, rk3188-rock still boots and the TPL has
> come down to 616byte on gcc-4.9 and 592bytes on gcc-6.3, so

Actually, after finding out that I should add a
# CONFIG_TPL_DM_SERIAL is not set
to my defconfig, the size goes down even more - to 488 bytes on both
gcc-4.9 and gcc-6.3.

Still works and all.

> Tested-by: Heiko Stuebner <heiko@sntech.de>
>
> We have like vast amounts of free space in tpl now ;-)
>
> I guess I should fold your TINY_MEMSET option into my rock board,
> once you've applied the core patch?
>
>
> Heiko
>
>
> >
> > Changes in v2:
> > - Adjust the option to be SPL-only
> > - Change the option to default to off (name it CONFIG_SPL_TINY_MEMSET)
> > - Add a new patch to enable CONFIG_SPL_TINY_MEMSET
> > - Add new patch to allow driver model to be disabled for TPL
> > - Add new patch to allow driver-model serial to be disabled for TPL
> >
> > Simon Glass (5):
> > string: Provide a slimmed-down memset()
> > rockchip: rock: Enable CONFIG_SPL_TINY_MEMSET
> > Makefile: Provide an option to select SPL or TPL
> > dm: core: Allow driver model to be disabled for TPL
> > dm: serial: Allow driver-model serial to be disabled for TPL
> >
> > configs/rock_defconfig | 1 +
> > drivers/Makefile | 2 +-
> > drivers/core/Kconfig | 14 ++++++++++++++
> > drivers/serial/Kconfig | 20 ++++++++++++++++++++
> > drivers/serial/Makefile | 2 +-
> > lib/Kconfig | 8 ++++++++
> > lib/string.c | 6 ++++--
> > scripts/Kbuild.include | 6 ++++++
> > scripts/Makefile.spl | 6 ++++++
> > 9 files changed, 61 insertions(+), 4 deletions(-)
>
>