On Wed, 1 Jul 2009 09:57:10 -0700 Prafulla Wadaskar <prafu...@marvell.com> wrote: > > kwgbe_send/recv both have loops waiting for the hardware to > > set a bit. > > GCC 4.3.3 cleverly optimizes this to ... a while(1); loop. > Struct used is defined as volatile here. > Is this not sufficient?
Right, but that was only for recv - send isn't volatile. I'll send a new patch with the required changes. The question is which :-): 1. Make structure volatile in send as well 2. Use readl() where needed 3. Keep the memory barrier approach (and maybe add a mb() macro to arm as well) I'm happy to get suggestions! I'll prepare the openrd_base board patches a bit more and send them to the list later today. // Simon _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
