Re: [U-Boot] [PATCH] arm: fix memory coherency problem after relocation

Dear Mike Dunn,

On the xscale, the icache must be invalidated and the write buffers drained after writing code over the data bus, even if the caches are disabled. After rebasing with the main git repository, u-boot began crashing in odd places on my pxa270 board (palmtreo680) after the code relocation routine ran. This patch fixes it. Cache coherency problems are often hit-and-miss (ha ha), and this latent problem didn't rear its ugly head until now. Tested on the pxa270.

Signed-off-by: Mike Dunn mikedunn@newsguy.com

I realize that __ARM_ARCH_5TE__ does not necessarily mean xscale.

We should introduce some CONFIG_PXA I guess.

Best regards, Marek Vasut