Hi P J, On Mon, Jul 25, 2011 at 06:14:07PM +0530, P J wrote: > I'm working on a custom board design based on AT91SAM9G45-EKES. > > There are two memory banks (DDR2) located at physical addresses > 0x70000000 to 0x77FFFFFF (128MB) & > 0x20000000 to 0x27FFFFFF (128MB) > > When I use Flat memory model and boot the Kernel then I get this warning: > "Ignoring RAM at 0x20000000 - 0x27FFFFFF (vmalloc region overlap)" and > the kernel boots fine. > > I need this 256 MB RAM - DDR2 to work so I enable SparseMem and then > My kernel does not boot. > > I'm using linux 2.6.32-8. > > The RAM at 0x70000000 is mapped at 0xC0000000 & > the RAM at 0x20000000 is to be mapped at 0xC8000000. > > Does Linux works fine for Sparse memory on ARM Linux? Is it possible > to use such memory mappings and get 256 MB of memory to work?
The right mailing list for this kind of questions is the linux-arm-kernel list. See http://lists.infradead.org/mailman/listinfo/linux-arm-kernel, and search the archive. baruch -- ~. .~ Tk Open Systems =}------------------------------------------------ooO--U--Ooo------------{= - [email protected] - tel: +972.2.679.5364, http://www.tkos.co.il - _______________________________________________ Celinux-dev mailing list [email protected] http://tree.celinuxforum.org/mailman/listinfo/celinux-dev
