Hi Nicolas, On Wed, 29 Mar 2023 at 20:55, Nicolas Ferre <nicolas.fe...@microchip.com> wrote: > > Hi Simon, > > On 29/03/2023 at 09:16, Simon Glass wrote: > > This is needed to enable the boot command used to start standard boot. > > Enable it by default. This brings in quite a few features, mostly in > > common with DISTRO_DEFAULTS > > > > Disable this option for boards which don't have enough space. > > What is the identified minimal space for benefiting from this feature?
Well some boards have a limit on the size of U-Boot. The defaults enables lots of things, including ext and fat filesystems, partition types, booti/z for ARM, etc. I have not locked at what a minimal board requires. But if you know what you are doing, you could drop BOOT_DEFAULTS and BOOTSTD_DEFAULTS or DISTRO_DEFAULTS and manually enable just what you need. > > > > Disable CONFIG_ENV_VARS_UBOOT_CONFIG for some Xilinx boards which have > > a very small environment. Disable BOOTSTD_DEFAULTS for smartweb since > > it is too close to its limit. > > I see that a few Microchip boards are in this case too and even if > sama5d27 som1 ek might be impacted, I would like to double check for the > other sama5d2 boards. OK, sure. The really big thing is booting EFI images - CONFIG_EFI_LOADER. It adds over 100KB I think. Regards, Simon
