Dear Andreas Pretzsch,
In message 1285564526.21734.187.camel@ws-apr.office.loc you wrote:
In a nit-picking moment trying to save some flash storage, I looked at the current typical flash layout of U-Boot and came up with below RFC.
Thanks.
I'd volunteer to provide an implementation for the architectures I have close at hand today (Blackfin, ARM11), as time permits. For other architectures, I'd need some assistance.
You design a big and somewhat complicate solution for a problem which does not exist, because it has already been solved more than a decase ago, i. e. right with the very first versions of U-Boot (or PPCBoot, as it was called by then).
We call this feature "embedded environment", and all what it takes to use it oin a machine is a somehwat hand-crafted version of the linker script which aligns the location of the environmentin the right (small) flash sectors.
This works like a charm, and I recommend you have a look into this.
Best regards,
Wolfgang Denk