20 Mar
2013
20 Mar
'13
12:32 a.m.
On 03/19/2013 05:07:33 PM, York Sun wrote:
On 03/19/2013 03:01 PM, Albert ARIBAUD wrote:
What's the point of this command exactly? I can see the point of
range
flushes (and invalidates) in the code for drivers that use DMA, but
as a
shell command, I fail to see the interest of it.
I am actually expecting this question. We have a situation that an application is copied by u-boot to its destination in memory. The code needs to be "seen" in the main memory. Without flushing cache, it is only visible to cores.
It's the same purpose as the cache flushing that happens in bootm, except for code loading that happens outside bootm.
-Scott