Hi Jeroen,
After debugging a bit more, I found that in our code, we didn't set the RAM size
correctly (so no real RAM section was setup for caching). Fixing this fixed our
time to 2.4 seconds (U-boot still took 1.8 sec).
Adding your SRAM patch (modified, since AM335x has more SRAM),
The load time
I'm trying to optimize the boottime for an AM335x based board. Currently
we're loading the kernel from SPL directly (falcon mode). Loading the kernel
from flash to ram takes roughly 3 seconds.
When doing this from U-boot itself with 'nand read .., it only takes 1.8
seconds.
It seems that U-boot ha
the cache also needs to be invalidated, not just flushed, Since re-enabling it,
can cause inconsistent data without invalidation.
Signed-off-by: Bas van den Berg
---
arch/arm/lib/cache.c |2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/arch/arm/lib/cache.c b/arch/arm
the cache also needs to be invalidated, not just flushed, Since re-enabling it,
can cause inconsistent data without invalidation. See example below.
in c-file:
static int num = 1;
void test() {
num = 1;
dcache_enable();
printf("Cache on, num=%d\n", num);
num = 2;
dcache_disabl
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