Jerry,
Excellent Idea! I will test it right away.
--
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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Jerry Van Baren wrote:
> So you should be able to use
>0xE080..0xE0FF - 2nd "copy" of the first bank
>0xE100..0xE17F - 1st "copy" of the second bank
> you will double your available consecutive memory. You can do the same
> thing with the third and fourth banks of memory,
Stuart Wood wrote:
> Wolfgamg
>
>
>> What has the MMU to do with it?
>>
>> Just program your memory controller such that the 4 banks form a
>> contiguous region.
>
> The memory controller unfortunatly can not map the SDRAM banks as
> contiguous region. That IS the main problem. For the SDRAM I'
Wolfgamg
> What has the MMU to do with it?
>
> Just program your memory controller such that the 4 banks form a
> contiguous region.
The memory controller unfortunatly can not map the SDRAM banks as
contiguous region. That IS the main problem. For the SDRAM I'm using
It ends up giving me region
In message <[EMAIL PROTECTED]> you 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?
In message <[EMAIL PROTECTED]> you wrote:
> I've got an interesting problem. If loading a large image to memory
> and then copying it to flash it gets corrupted.
I think copying to flash is completely unrelated to your problem.
> It appears to happen when the image size becomes larger then a bank
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
<[EMAIL PROTECTED]> wrote:
> I'm using an ARM90T processor core. It does have a MMU. My
>
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
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 regards
On Thu, Jul 24, 2008 at 4:56 PM, Stuart Wood
<[EMAIL PROTECTED]> wrote:
> I've got an interesting problem. If loading a large imag
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 w
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