Palm Tungsten E2 Port Page

This port is intended to:
a) make Rockbox work as an "hybrid" application, that runs on Linux, mostly using kernel API for hardware management
b) demonstrate reuse of old gadgets re-purposing them c) improve Rockbox <-> Linux compatibility (not as an "app" but rather as a "port" )

Hardware

• CPU: Intel XScale PXA 255 @ 200MHz (ARMv5TE;
• RAM: 16MB
• Flash ROM: 32 MiB, including 26MiB user-accessible non-volatile storage
• AC97 audio IF + touchscreen: WM9712
• Display: TFT 16 bit 320x320; 2.23 " x 2.23 " (56.57 x 56.57 millimetres); 143 pixels/inch
• Connectivity: irda + Bluetooth 1.1
• Loudspeaker (mono); 3,5mm jack stereo plug
• USB + UART on propertary connector (other in/outs as well)
• Battery: 1020 mAh (SoC is able to monitor voltage and temperature)

How To

• KERNEL: TODO how to compile + configuration for kernel 4.x + binaries
• ROOTFS: TODO how to + buildroot + image
• ROCKBOX: TODO + binary

Pins and I/O - low level

See gpio-tungstene2.h to have a complete list of important pins that are used.

Devices and I/O - Linux

dev entry	device	comments
/dev/fb0	framebuffer	Standard Linux framebuffer device.
/dev/input/event0	touchscreen/pad	Standard Linux input device. Covers whole screen and the touchpad grey area.
/dev/input/event1	keypad	Standard Linux input device.

Port status

driver	status	comments
LCD	100%	Standard Linux framebuffer device.
Backlight	0%	Works fine so far. Check limits and why in OF there is a different limit/starting point for the two different LCD
Buttons	0%	GPIO buttons under Linux API
Touchpad	0%	Linux API
Audio	0%	AC97 interface; ALSA
Power Management	0%	study the possibilities
Storage	100%	Storage handled by Linux.
USB	0%	I have no cable for that ^^
Plugins	0%	Key mappings + display resolution
RTC	0%	check

First screens

I have successfully make Rockbox to boot under the fresh Linux environment! As a side note, it is amazing to see where Linux can run :)

• Linux 4.x kernel booting (and complaining about the filesystem too):
  

-- LorenzoMiori - 08 May 2015