[Arm-netbook] RAM, uboot

Mike Thompson mpthompson at gmail.com
Tue May 8 22:20:04 BST 2012


David,

I would be very interested in your kernel.conf file and a link to the
specific kernel sources you are using.  I hope to create a headless
system running Debian Wheezy armhf ASAP.  A functioning kernel would
be a terrific head start.

Thanks,

Mike Thompson

On Tue, May 8, 2012 at 2:09 PM, David Given <dg at cowlark.com> wrote:
> So my quest to turn my A1000 into a server is proceeding apace: I now
> have a custom kernel for a headless system which supports ethernet, SATA
> and wifi. Is the kernel.conf of any interest to anyone?
>
> The two big remaining issues are:
>
> - Booting. Currently I have to break into uboot and change the root
> partition in order to put my root filesystem on SATA. Is there any way
> to change the default uboot environment *without* having to recompile it?
>
> - RAM. About 200MB of my precious memory is vanishing somewhere.
>
> dmesg shows this on startup:
>
> [    0.000000] Total Detected Memory: 512MB with 1 banks
> [    0.000000] Ignoring unrecognised tag 0x00000000
> [    0.000000] Memory Reserved:
> [    0.000000]   VE:    0x43000000, 0x04a00000
> [    0.000000]   FB:    0x5a000000, 0x02000000
> [    0.000000]   G2D:   0x58000000, 0x01000000
> [...]
> [    0.000000] Memory: 448MB = 448MB total
> [    0.000000] Memory: 318956k/318956k available, 139796k reserved, 0K
> highmem
>
> The three reserved areas account for the 124928kB of the reserved
> memory. I assume this are used by the video engine, framebuffer and...
> something else. Given that I have a headless system, is there any way I
> can reclaim these? Will I need to change the evb.bin?
>
> Also, why is Linux only using 448MB of the 512MB total?
>
> --
> ┌─── dg@cowlark.com ───── http://www.cowlark.com ─────
>> │ "Never attribute to malice what can be adequately explained by
> │ stupidity." --- Nick Diamos (Hanlon's Razor)
>
>
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