TS-4700 errata screen shaking

Synopsis	LCD Shakes
Affected	TS-4700 REV C
Status	Workarounds available

Description:

Older TS-4700 images show horizontal shaking on the 10" TPC, or typically any displays 800x600 or larger.

Workaround:

In startup add the command: devmem 0xB0000280 32 0x10102

This can be added directly into your Linuxrc to happen on startup. For example, adding before getdio:

 ifconfig lo 127.0.0.1 up
 route add -net 127.0.0.0 netmask 255.0.0.0 lo
 xuartctl --server 
 
 eval `ts4700ctl --info`
 export bootdev model baseboard_model pclk dclk
 
 devmem 0xB0000280 32 0x10102
 
 eval `ts4700ctl --getdio`
 let dio9="(dio >> 9) & 0x1"
 XCONSOLE=0

If you're running this from Debian you can run:

 /initrd/bin/busybox devmem 0xB0000280 32 0x10102