DIY PowerPC Mini ITX Laptop for AmigaOS 4?

[asian1]

> AmigaOS 4 running on PowerPC 405
> Troika Mini ITX PowerPC board

There is a DIY Mini ITX Laptop project:

http://www.freewebs.com/trekkiejt/pictures.htm

My idea:
1. Troika Mini ITX board with fanless PowerPC.
2. +12V to ATX power supply DC-DC converter (off the shelf).
3. Small sealed motor/car Battery (off the shelf).

Is it possible to create DIY Mini ITX PowerPC Laptop?

ECS had released X86 barebone laptop (desknote) with changable CPU.
Is it possible to create PowerPC 405 SOC modules for ECS barebone laptop?

[asian1]

> Bus timing, Endianness

Hi
If you see the specification, Desknote use SIS System On Chip and combined it with Intel CPU.

http://www.digit-life.com/articles2/ecs-desknote-p4/

"SiS® 651 & SiS® 962, 4X AGP bus interface, supports host bus at 400MHz"

Perhaps the module can use similar PowerPC 405 SOC from AMCC / other vendors with built in memory controller, Graphics, Sound, Ethernet, USB, Firewire, PCI-E etc. Perhaps there will be external PCIe port /connector for connecting the laptop to external PCIe based peripherals / docking station.

There is a new SOC from IBM and Sanyo based on PowerPC 405:

==============================================
The 405 was codeveloped with Sanyo in a core-sharing relationship; of the 25 intellectual-property (IP) blocks within the core, six are from Sanyo. At the SOC's heart is the PowerPC 405B3 core, featuring a 192-MHz 405 core, JTAG, MMU, a 16-Kbyte instruction cache and 8-Kbyte data cache. A laundry list of features is also included: a 3-channel ISDN interface; an LCD controller capable of 32-bit color, XGA resolution, and support for TFT and STN displays; a serial port for an audio codec; I/O pins; a smart card controller; and USB, IrDA, parallel and UART ports. The 5.2 million-transistor 405 core pushes an estimated 292 Dhrystone MIPS, and requires 5.2 million transistors in 0.25-micron CMOS, while totaling 57 sq. mm in size. It is estimated to draw 1.4 watts.