A20

Debian image sunxi_ss crypto http://www.cubieforums.com/index.php/topic,1275.0.html
http://www.armbian.com/cubieboard-2/

hardware

pinout:

pwm

https://www.olimex.com/wiki/How_to_add_pwm

SATA

https://groups.google.com/d/searchin/cubieboard/sata/cubieboard/hKJgJneGVmQ/xme3w4Y7XtsJ?fromplusone=1

root@debian:~/sunxi-tools# ./bin2fex /boot/script.bin script.fex
fexc-bin: /boot/script.bin: version: 0.1.2
fexc-bin: /boot/script.bin: size: 42144 (76 sections)

root@debian:~/sunxi-tools# cp script.fex script+sata.fex

root@debian:~/sunxi-tools# diff -urw script.fex script+sata.fex 
--- script.fex  2013-05-30 10:41:13.979510762 +0000
+++ script+sata.fex     2013-05-30 10:42:36.380244101 +0000
@@ -595,7 +595,7 @@
 
 [sata_para]
 sata_used = 1
-sata_power_en =
+sata_power_en = port:PB08<1><default><default><0>
 
 [mmc0_para]
 sdc_used = 1

root@debian:~/sunxi-tools# ./fex2bin script+sata.fex /boot/script.bin

root@debian:/etc# git diff
diff --git a/modules b/modules
index d8894c3..9e65a80 100644
--- a/modules
+++ b/modules
@@ -4,3 +4,4 @@
 # at boot time, one per line. Lines beginning with "#" are ignored.
 # Parameters can be specified after the module name.
 
+sw_ahci_platform

Reboot to activate changes and test speed (using 80G intel SSD to have sense of maximum performance)

root@debian:~# hdparm -i /dev/sda

/dev/sda:

 Model=INTEL SSDSA2M080G2GC, FwRev=2CV102HD, SerialNo=CVPO035101VN080JGN
 Config={ Fixed }
 RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=0
 BuffType=unknown, BuffSize=unknown, MaxMultSect=16, MultSect=1
 CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=156301488
 IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
 PIO modes:  pio0 pio3 pio4 
 DMA modes:  mdma0 mdma1 mdma2 
 UDMA modes: udma0 udma1 udma2 udma3 udma4 udma5 *udma6 
 AdvancedPM=no WriteCache=enabled
 Drive conforms to: ATA/ATAPI-7 T13 1532D revision 1:  ATA/ATAPI-2,3,4,5,6,7

 * signifies the current active mode

root@debian:~# hdparm -tT /dev/sda

/dev/sda:
 Timing cached reads:   784 MB in  2.00 seconds = 392.08 MB/sec
 Timing buffered disk reads: 460 MB in  3.00 seconds = 153.32 MB/sec

And test with disk:

root@debian:~# hdparm -i /dev/sda

/dev/sda:

 Model=ST96812AS, FwRev=7.24, SerialNo=3PJ1GCKE
 Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs RotSpdTol>.5% }
 RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=4
 BuffType=unknown, BuffSize=8192kB, MaxMultSect=16, MultSect=off
 CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=117231408
 IORDY=on/off, tPIO={min:240,w/IORDY:120}, tDMA={min:120,rec:120}
 PIO modes:  pio0 pio1 pio2 pio3 pio4 
 DMA modes:  mdma0 mdma1 mdma2 
 UDMA modes: udma0 udma1 udma2 udma3 udma4 *udma5 
 AdvancedPM=yes: unknown setting WriteCache=enabled
 Drive conforms to: Unspecified:  ATA/ATAPI-1,2,3,4,5,6,7

 * signifies the current active mode

root@debian:~# hdparm -tT /dev/sda

/dev/sda:
 Timing cached reads:   746 MB in  2.00 seconds = 372.90 MB/sec
 Timing buffered disk reads: 120 MB in  3.03 seconds =  39.56 MB/sec

GPIO

https://github.com/gootoomoon/WiringCB-python

Camera

OV7670 is supported http://linux-sunxi.org/CSI