[Arm-netbook] RAM, uboot

David Given dg at cowlark.com
Tue May 8 22:09:01 BST 2012

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

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)

-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 254 bytes
Desc: OpenPGP digital signature
Url : http://lists.phcomp.co.uk/pipermail/arm-netbook/attachments/20120508/36aafafd/attachment.bin 

More information about the arm-netbook mailing list