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From: Sreeni <sreeni.pulichi@gmail.com>
To: linux-os@analogic.com, linux-kernel@vger.kernel.org
Subject: XIP probelm
Date: Fri, 21 Oct 2005 12:22:52 -0400	[thread overview]
Message-ID: <94e67edf0510210922l7c4ab3can8cef0f34cdc2a0fd@mail.gmail.com> (raw)

Hi,

I have a montavista XIP kernel running on ARM and my kernel will be in
the flash. Since its XIP, I know that the ".text" portion of the
kernel will be executed from flash but that ".data" needs to be placed
in SDRAM. Now my question is - based on what offset this data will be
placed?

My SDRAM physicall address starts at 3000_0000 and flash starts at
0100_0000. when i allocated a global variable in the kernel module and
when i try to check its actually physical address using virt_to_phys,
its giving me the address in the range of 0100_0000 ~ 0600_0000 which
is my flash (the PAGE_OFFSET doesn't work in case of XIP).

Can you please help in knowing the physical address of my .data
portion in this situation.

Thanks
Shree

             reply	other threads:[~2005-10-21 16:22 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-10-21 16:22 Sreeni [this message]
2005-10-21 19:45 ` linux-os (Dick Johnson)

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