21 May
2013
21 May
'13
6:31 p.m.
On Tue, 2013-05-21 at 17:00 +0200, Marek Vasut wrote:
Yes, the patch as it is will only affects relocation speed and preserve SRAM from corruption.
Now this is the right (convincing) argument! What kind of corruption ? When does it occur ?
The whole 256 kB of SRAM could be used for persistent storage with the patch. Without it, part of SRAM should be dedicated for U-Boot stack or be overwritten on boot.
The speed gain can also be applied to uImage copying/unpacking, but that requires deeper understanding than I have at the moment.
Uh ... I lost you here. Can you please elaborate some more ?
You are right. After SDRAM is configured, it is enough to turn on data caching to receive its speed benefits.