[Arm-netbook] RAM, uboot
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?
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