Neo 1973 hardware

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display (top) side

component (back) side

Main components

Processor

The main Processor (CPU) of the Neo1973 is a Samsung S3C2410A-266 (Capable of running up to 266 MHz)

• Product Homepage: http://www.samsung.com/products/semiconductor/MobileSoC/ApplicationProcessor/ARM9Series/S3C2410/S3C2410.htm
• User Manual: http://www.samsung.com/Products/Semiconductor/MobileSoC/ApplicationProcessor/ARM9Series/S3C2410/2410UserManual.pdf
• BSDL File: http://www.samsung.com/Products/Semiconductor/MobileSoC/ApplicationProcessor/ARM9Series/S3C2410/S3C2410_BGA_BSDLJTAGFILE.bsd

Flash

64MB Samsung NAND flash (K9F1208U0B) attached to S3C2410 NAND controller.

• Product Homepage: http://www.samsung.com/products/semiconductor/NANDFlash/SLC_SmallBlock/512Mbit/K9F1208U0B/K9F1208U0B.htm
• Data Sheet: http://www.samsung.com/Products/Semiconductor/NANDFlash/SLC_SmallBlock/512Mbit/K9F1208U0B/ds_k9f1208x0b_rev03.pdf

RAM

128MB SDRAM (2x Samsung K4M511633C) attached to S3C2410 SDRAM controller

• Product Homepage: http://www.samsung.com/Products/Semiconductor/MobileSDRAM/MobileSDRSDRAM/512Mbit/K4M511633C/K4M511633C.htm
• Data Sheet: http://www.samsung.com/Products/Semiconductor/MobileSDRAM/MobileSDRSDRAM/512Mbit/K4M511633C/ds_k4m511633c.pdf

GSM/GPRS

The GSM/GPRS modem is Texas Instruments Calypso based

AGPS

Hammerhead AGPS from Global Locate

SD-Card

microSD aka Transflash

Bluetooth

Audio

Wolfson Codec

Analog wired Headset

There's a four-ring 2.5mm stereo jack which provides connectivity to old-fashined wired headsets.

The headsets used by Motorola smartphones (A780,A1200, ...) have a compatible configuration

Bluetooth Headset

This one is wired via PCM bus from the CSR Bluetooth chip to the Wolfson codec.

History

GTA01

This is the most simple, non-bluetooth version of the prototype.

GTA01v3

First generation of prototypes that was given to internal OpenMoko software developers.

Unfortunately not useful at all due to non-working touchscreen.

• ATAG_REVISION: 0x0000130

GTA01v4

Second generation of prototypes that was given to Harald + Mickey.

Unfortunately still not useful due to half-working touchscreen.

• ATAG_REVISION: 0x00000140

GTA01B

This is the bluetooth-enabled fork of GTA01

GTA01Bv2

This is the first produced version of the bluetooth-enabled version.

• ATAG_REVISION: 0x00000220

GTA01Bv3

This is the second produced version of the bluetooth-enabled version. It contains mainly GPS-related fixes.

• ATAG_REVISION: 0x00000230

This is the version that is shipped in Phase 0

GTA01Bv4

This is the version that is shipped in Phase 1

Distinguishing hardware revisions

Inside the Bootloader

Every hardware revision has its own u-boot image type. Thus, the bootloader has the revision hard-coded. The hardware revision is passed on to the kernel via the ATAG mechanism (ATAG_REVISION)

Inside the Kernel

The kernel receives the ATAG_REVISION during bootup, and saves its contents in the "system_rev" global variable.

From Userspace

The kernel exports the system_rev variable in /proc/cpuinfo as "Revision :" line.

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