Re: [U-Boot-Users] mpc5121 cache coherency

2008-06-18 Thread kenneth johansson
On Wed, 2008-06-18 at 13:38 -0600, John Rigby wrote: > Unlike other SOCs with e300 cores the 5121 is not cache coherent. The > problem is an internal bridge that the processor can not snoop across. I do not have access to the manuals right now but I search all over an this was not something I fou

mpc5121 cache coherency

2008-06-18 Thread Kenneth Johansson
I have tried to speed up u-boot by turning on I/D cache during boot. It sort of works and gives quite a boost but I'm having problems with the ethernet driver that no longer works. What I'm seeing is that the cpu do not notice the ethernet hardwares updates that is located in DRAM. Basically w

Re: [U-Boot-Users] mpc5121 cache coherency

2008-06-18 Thread John Rigby
Unlike other SOCs with e300 cores the 5121 is not cache coherent. The problem is an internal bridge that the processor can not snoop across. On Wed, Jun 18, 2008 at 1:29 PM, Kenneth Johansson <[EMAIL PROTECTED]> wrote: > I have tried to speed up u-boot by turning on I/D cache during boot. > > It