Difference between revisions of "N900"

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(mainline U-Boot now has full support for the Nokia N900)
m (use class="wikitable" for the table)
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== Status ==
== Status ==
{| class="wikitable"
! chip !! purpose
! chip !! purpose
! docs !! impl !! merge
! docs !! impl !! merge

Revision as of 11:05, 2 April 2013


chip purpose docs impl merge board impl board merge firmware
OMAP3430 System-on-chip OMAP34xx TRM Yes Yes Yes Yes
* Cortex A8 CPU ARM infocenter Yes Yes N/A
* * ARMv7 Instruction set ARM infocenter Yes Yes N/A
* * NEON Media Extensions ARM infocenter Yes Yes N/A
* * Thumb Code compression ARM infocenter Yes by 2.6.12 ? N/A
* * Thumb2 Code compression ARM infocenter Yes Yes N/A
* * ThumbEE Instruction Set for JIT compilers ARM infocenter Yes Yes N/A (Userspace: Java VM?)
* * VFP Floating-point coprocessor ARM infocenter Yes by 2.6.12 ? N/A
* M-Shield AES acceleration code Yes 2.6.37-rc1 N/A
* OMAP 3 Camera ISP OMAP3 Camera Chip Connection Bus OMAP34xx TRM Yes 2.6.39-rc1 N/A
* OMAP DSS Video HW abstraction layer OMAP34xx TRM Yes Yes N/A
* OMAP DRM KMS video driver N/A Yes 3.3-rc1 N/A
* TMS320 C64x DSP (also called IVA 2+) datasheet Yes Yes N/A (Userspace: gst-dsp)
* PowerVR SGX530 OpenGL ES and OpenVG acceleration No No No No No
* OMAP Watchdog Watchdog OMAP34xx TRM Yes 3.8 Yes Yes
* OMAP MMC/SD/SDIO eMMC & SD/MMC card OMAP34xx TRM Yes Yes Yes Yes
TI TWL4030 multifunction (I2C) TPS65950 TRM N/A
* Audio part of TI TWL4030 Yes Yes Yes Yes
* Vibrator part of TI TWL4030 Yes Yes Yes 2.6.39-rc1
* Real-Time Clock part of TI TWL4030 Yes Yes N/A
* Watchdog part of TI TWL4030 Yes 3.8 Yes Yes
GPIO Camera button N/A Yes Yes Yes Yes
Taos TSL2563 Ambient light sensor datasheet Yes 2.6.33 Yes Yes
LP5523 LED driver documentation Yes 2.6.37-rc2 Yes 3.1-rc1
Sony ACX565AKM LCD panel code Yes 2.6.35 Yes 2.6.36
TI TSC2005 Touchscreen controller datasheet 2.6.39-rc1 2.6.39-rc1 Yes 3.3-rc1
WL1251 802.11b/g WiFi code Yes 2.6.31 Yes 2009-11-22 wl1251-fw.bin
Si4713 FM transmitter datasheet Yes 2.6.32 Yes Yes
TPA6130a2 Headphone amplifier datasheet Yes 2.6.33 Yes Yes
TLV320AIC3X Digital audio data serial ti.com Yes 2.6.25 Yes Yes
GPIO Proximity sensor N/A Yes Yes Yes Yes
GPIO Keyboard N/A (layout: code) Yes 2.6.33 Yes Yes
Phonet Modem protocol code Yes 2.6.28 N/A
HSI Modem Bus Framework code Yes 3.4-rc2 N/A
Omap SSI Synchronous Serial Interface code RFCv5 (2011-06-10) No No No
* TI NaviLink NL5350 GPS (via Phonet modem protocol) reveng Userspace gps2.c
* A-GPS No Client SUPL application: http://www.tajuma.com/supl/index.html
isp1704 USB charger detector datasheet Yes 2.6.37-rc1 Yes 2011-04-20
bq27200 Battery monitor chip documentation Yes 2.6.28 patch 3.3-rc1
OneNAND Flash memory code Yes 2.6.15 Yes Yes
LIS302DL Accelerometers datasheet Yes 2.6.32 patch 3.5-rc1
ADP 1653 Flash Torch datasheet Yes 3.1-rc1 Yes No
rx51_battery Battery design capacity, battery temperature code Yes 3.8 Yes 3.8
bq24150a Battery charger documentation Yes 3.8 WIP No
STM VS6555 Front Webcam datasheet Yes v3.4-rc4 No No No firmware needed
ET8EK8 Main Camera datasheet Yes No Yes No et8ek8-0002.bin
AD5820 Autofocus code Yes No Yes No
BCM2048 Bluetooth old code Yes No Yes No bcmfw.bin
* FM/RDS receiver old code Yes No Yes No
IR Diode on GPIO Infrared/CIR transmitter N/A Yes 3.7-rc1 Yes 3.7-rc1
omap3-rom-rng OMAP3 ROM Random Number Generator support code Yes No Yes No

Kernel git repository for N900

There is git repository for upstream linux kernel with all N900 patches.


This git repository is used for development. All other git repositories on internet are older and does not contains all patches.


Instead of booting the kernel directly from NOLO (which restricts you to using exactly one kernel), U-Boot can be used as second bootloader. The Maemo kernel can be appended to U-Boot to keep the existing Maemo installation working (U-Boot must be located at the location of the Maemo kernel). The resulting boot process will end up like this: NOLO -> U-Boot -> Kernel.

Pali Rohár has been working on getting the N900 support into the mainline U-Boot:

description date status
Board Support 2012-10-29 mainline
Bootmenu Support 2013-03-07 mainline

Currently all U-Boot development for the Nokia N900 is done in this git repository: https://gitorious.org/u-boot-shr/u-boot (branch pali).

There's also a thread on talk.maemo.org, where the latest released & tested version can be found: http://talk.maemo.org/showthread.php?t=81613


There is open source flasher application 0xFFFF which working with Nokia N900. Git repository is on: https://gitorious.org/0xffff/0xffff