On Tue, Apr 26, 2022 at 05:55:36AM +0100, Peter Robinson wrote: > > > The bootflow feature provide a built-in way for U-Boot to automatically > > > boot an Operating System without custom scripting and other customisation. > > > This is called 'standard boot' since it provides a standard way for > > > U-Boot to boot a distro, without scripting. > > > > > > It introduces the following concepts: > > > > > > - bootdev - a device which can hold a distro > > > - bootmeth - a method to scan a bootdev to find bootflows (owned by > > > U-Boot) > > > - bootflow - a description of how to boot (owned by the distro) > > > > > > This series provides an implementation of these, enabled to scan for > > > bootflows from MMC, USB and Ethernet. It supports the existing distro > > > boot as well as the EFI loader flow (bootefi/bootmgr). It works > > > similiarly to the existing script-based approach, but is native to > > > U-Boot. > > > > I've put most of this cover letter in the merge commit, and applied this > > to u-boot/master. This is an incremental starting point at providing a > > alternative way of constructing and controlling the load and execute OS > > stage of booting. There is some growth on most platforms for this, but > > it is a reasonable alternative and will be iterated on. > > I'm guessing this would allow us to optionally disable hush and > associated pieces for a lot of the boards which may equal it out?
Long term, we'll see what makes the most sense for everyone as a reasonable set of defaults. I also think that high level, there'll be places to optimize this for overall size down the line. -- Tom
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