Why the total memory is 827MB instead of 1GB - cubieplayer/Cubian GitHub Wiki
Problem
I can only see 846992KB total memory which should be 1023600 KB as i expected.
root@Cubian:/proc# cat meminfo
MemTotal: 846992 kB
MemFree: 729104 kB
Buffers: 5616 kB
Cached: 85140 kB
SwapCached: 0 kB
Active: 24860 kB
Inactive: 77996 kB
Active(anon): 12128 kB
Inactive(anon): 1536 kB
Active(file): 12732 kB
Inactive(file): 76460 kB
Unevictable: 0 kB
Mlocked: 0 kB
HighTotal: 270336 kB
HighFree: 172176 kB
LowTotal: 576656 kB
LowFree: 556928 kB
SwapTotal: 0 kB
SwapFree: 0 kB
Dirty: 0 kB
Writeback: 0 kB
AnonPages: 12172 kB
Mapped: 6412 kB
Shmem: 1568 kB
Slab: 6384 kB
SReclaimable: 1816 kB
SUnreclaim: 4568 kB
KernelStack: 1096 kB
PageTables: 852 kB
NFS_Unstable: 0 kB
Bounce: 0 kB
WritebackTmp: 0 kB
CommitLimit: 423496 kB
Committed_AS: 501032 kB
VmallocTotal: 245760 kB
VmallocUsed: 12200 kB
VmallocChunk: 212928 kB
Solve the problem
Modify uEnv.txt or boot.scr
setenv bootargs console=tty0 console=ttyS0,115200 sunxi_no_mali_mem_reserve sunxi_g2d_mem_reserve=0 sunxi_ve_mem_reserve=0 hdmi.audio=EDID:0 disp.screen0_output_mode=EDID:1280x800p60 root=/dev/mmcblk0p1 rootwait panic=10 consoleblank=0
To compile boot.cmd to boot.scr
mkimage -C none -A arm -T script -d boot.cmd boot.scr