Hello again
AFAIK the ppc440 runs ALLWAYS in virtual mode, and supports allocate anything in the real space to anywhere in the virtual space.
Best regards
On Thu, Jul 24, 2008 at 10:30 PM, Stuart Wood stuart.wood@labxtechnologies.com wrote:
I'm using an ARM90T processor core. It does have a MMU. My understanding is that u-Boot has discouraged the use of a MMU for virtual memory space. Are there any examples of processors architectures that can enable the MMU for address translations?
Stuart
On Thu, Jul 24, 2008 at 11:50 AM, Ricardo ricardo.ribalda@gmail.com wrote:
Hi Stuart
I don't know waht architechture that you are using, but if you have an mmu maybe you can set it to have a virtual memory space contigous.
Best regardsOn Thu, Jul 24, 2008 at 4:56 PM, Stuart Wood stuart.wood@labxtechnologies.com wrote:
I've got an interesting problem. If loading a large image to memory and then copying it to flash it gets corrupted. It appears to happen when the image size becomes larger then a bank of SDRAM. I've got a 32 MByte SDRAM that appears as 4 banks of 8 MBytes.
The system is using u-boot 1.1.3 and we will move to 1.3.3 soon. The memory regions are broken up like this.
0xE0000000 - 0xE07FFFFF 0xE1000000 - 0xE17FFFFF 0xE4000000 - 0xE47FFFFF 0xE5000000 - 0xE57FFFFF
The processor is a Cirrus Logic EP9302 ARM920T.
What would the most appropriate way of handling files larger than 8MBytes?
-- Stuart Wood
Lab X Technologies, LLC 176 Anderson Ave. Suite 302 Rochester, NY 14607 Phone: (585) 271-7790 x207 Fax: (585) 473.4707
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-- Ricardo Ribalda http://www.eps.uam.es/~rribalda/
-- Stuart Wood
Lab X Technologies, LLC 176 Anderson Ave. Suite 302 Rochester, NY 14607 Phone: (585) 271-7790 x207 Fax: (585) 473.4707