On Mon, Oct 07, 2019 at 01:52:17PM +0530, Lokesh Vutla wrote: > U-Boot cleans and invalidate L1 and L2 caches before jumping to Linux > by set/way in cleanup_before_linux(). Additionally there is a custom > hook provided to clean and invalidate L3 cache. > > Unfortunately on K3 devices(having a coherent architecture), there is no > easy way to quickly clean all the cache lines for L3. The entire address > range needs to be cleaned and invalidated by Virtual Address. This can > be implemented using the L3 custom hook but it take lot of time to clean > the entire address range. In the interest of boot time this might not be > a viable solution. > > The best hit is to make sure the loaded Linux image is flushed so that > the entire image is written to DDR from L3. When Linux starts running with > caches disabled the full image is available from DDR. > > Reported-by: Andrew F. Davis <a...@ti.com> > Reported-by: Faiz Abbas <faiz_ab...@ti.com> > Signed-off-by: Lokesh Vutla <lokeshvu...@ti.com>
Applied to u-boot/master, thanks! -- Tom
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