Neo 1973 hardware

Revision as of 17:22, 6 February 2007 (view source) HaraldWelte (Talk | contribs) (add pcb photographs of GTA01Bv3) ← Older edit		Revision as of 17:36, 6 February 2007 (view source) HaraldWelte (Talk | contribs) (→‎History) Newer edit →
Line 43:		Line 43:
	== History ==		== History ==
−	=== GTA01v3 ===	+	=== GTA01 ===
−	This was the initial hardware revision that was provided to the software team.	+	This is the most simple, non-bluetooth version of the prototype.
−	=== GTA01v4 ===	+	==== GTA01v3 ====
−	This was a slightly improved version of the hardware, though still with a number of serious bugs.	+	First generation of prototypes that was given to internal OpenMoko software developers.
		+	Unfortunately not useful at all due to non-working touchscreen.
−	=== GTA01Bv2 ===	+	* ATAG_REVISION: 0x0000130
−	This was the first hardware that (after applying some post-production hotfixes) worked completely.	+	==== GTA01v4 ====
−	=== GTA01Bv3 ===	+	Second generation of prototypes that was given to Harald + Mickey.
−	This is the hardware revision that we ship during Phase-0.	+	Unfortunately still not useful due to half-working touchscreen.
−	=== GTA01Bv4 ===	+	* ATAG_REVISION: 0x00000140
−	This is the hardware revision that we ship in Phase-1	+	=== 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.

---

Revision as of 17:36, 6 February 2007

Contents 1 Main components 1.1 Processor 1.2 Flash 1.3 RAM 1.4 GSM/GPRS 1.5 AGPS 1.6 SD-Card 1.7 Bluetooth 1.8 Audio 1.8.1 Wolfson Codec 1.8.2 Analog wired Headset 1.8.3 Bluetooth Headset 2 History 2.1 GTA01 2.1.1 GTA01v3 2.1.2 GTA01v4 2.2 GTA01B 2.2.1 GTA01Bv2 2.2.2 GTA01Bv3 2.2.3 GTA01Bv4 3 Distinguishing hardware revisions 3.1 Inside the Bootloader 3.2 Inside the Kernel 3.3 From Userspace

Main components

Processor

Samsung S3C2410A @ 266 MHz

Flash

64MB Samsung NAND flash attached to S3C2410 NAND controller

RAM

128MB SDRAM

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.