Re: Trying to understand ppc4xx_configure_pciex_PIMs mapping to physical address 0

2008-12-12 Thread Benjamin Herrenschmidt
On Fri, 2008-12-12 at 10:49 -0600, Ayman El-Khashab wrote: > I am using the ppc460ex as an endpoint and I see that the mentioned > function setups a 32Mb > window at address 0 in sdram. what i want is some memory that the > host can read/write to. > But the 32Mb that are already mapped at the bott

Trying to understand ppc4xx_configure_pciex_PIMs mapping to physical address 0

2008-12-12 Thread Ayman El-Khashab
I am using the ppc460ex as an endpoint and I see that the mentioned function setups a 32Mb window at address 0 in sdram. what i want is some memory that the host can read/write to. But the 32Mb that are already mapped at the bottom of ram, so it would not be good do writes to those addresses. Am