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*********************************************************
Release Notes: Android Image V1.0 Beta 1 for Colibri T20
*********************************************************
Please note that this Android image is for evaluation purposes only, and is provided as-is.
Customers should also note that support is limited, and Android source code for this image will not be published at the present time.
Contents:
- U-Boot 2011.06 boot loader
- Linux 3.1.10 kernel, based on NVIDIA's Linux for Tegra (L4T) release 16-r3
- Android ICS 4.0.4 file system
Licensing:
- proprietary multimedia codecs included for evaluation purpose only
- customer required to obtain proper re-distribution license
Notes:
- 115200 baud serial debug console on UARTA aka FFUART (lower X25 on EvalBoards, X13 on Iris) without any handshake
- YAFFS2 flash file systems
- Linux host used for recovery mode flashing requires proper 32-bit execution environment (e.g. install ia32-libs on 64-bit Ubuntu)
Working:
- U-Boot boot loader
- environment storage in NAND flash
- Ethernet
- MMC/SD cards
- NAND flash with NVIDIA partition table parsing
- RAM size auto detection
- serial console debug UARTA
- Toradex Colibri configuration block handling
- USB storage as host
- TFTLCD framebuffer support
- Linux kernel
- GPIOlib /sys/class/gpio
- temperature sensor /sys/bus/i2c/devices/4-004c
- RTC (Tegra internal, PMIC and board level I2C RTC)
- Ethernet eth0
- NAND flash MTD YAFFS2
- serial console debug UARTA
- high speed serial UARTB and UARTD
- I2C via /dev/i2c-X
- MMC/SD card, optional 8-bit SDHCI
- PWM LEDs /sys/class/leds/
- HDMI SPDIF audio
- AC97 audio capture, playback and touch
- SPI via /dev/spidev3.0
- GMI with multiplexed nPWE and RDnWR
- framebuffer console
- custom Ethernet MAC Address
- serial number and board revision
- watchdog
- USB host port
- USB device Ethernet RNDIS, provided by Android gadget
- suspend LP1
- DVFS power management
- Android
- TFTLCD aka DVI-A with VGA, 800x480 (EDT ET070080DH6), 1024x600 (TouchRev Fusion 10) or 720p
- HDMI aka DVI-D 720p display dynamically switching to 1080p for full HD content
- MMC/SD card
- USB host port
- USB keyboard/mouse
- USB memory stick
- ADB, MTP and USB tethering via USB device aka micro USB port
- Ethernet eth0 using DHCP
- video playback 720p/1080p
- browser
- GPIO keys (back using SODIMM pin 133 on Iris X16-14, find 77, home 127, menu 135, power 45 X16-20, volume down 24, up 22)
- LP1 suspend (wake-up via back or power key)
- resistive touch on 5.7" EDT ET057090DHU (VGA) or 7" ET070080DH6 albeit uncalibrated
- multitouch using TouchRev Fusion 10 (reset using SODIMM pin 101 on Iris X16-16 and pen down IRQ SODIMM 103 X16-15)
- PWM backlight via regular Android setting
- sources git.toradex.com
- U-Boot tag T20_LinuxImageV2.0_20130305
- Linux commit 0fc73eb175a82dc11f6c1cc8e03f1d311d3180de
Not working or not tested:
- U-Boot USB keyboard
Known issues:
- time needs to be set for download to work
- while 256MB modules do run fine multimedia capabilities are severely limited
*****************************************************************************************************************************************************************************************
NAND Boot: Colibri T20 256MB V1.1b (Sample), Colibri T20 512MB V1.1c (Sample), Colibri T20 256MB V1.2a, Colibri T20 512MB V1.2a, Colibri T20 256MB IT V1.2a or Colibri T20 512MB IT V1.2a
*****************************************************************************************************************************************************************************************
Initial Preparation:
- download and extract T20_AndroidImage_Vx.yz.tar.bz2 package
Optional Google Apps Installation:
- download latest gapps-ics-xyz-signed.zip as described on http://wiki.cyanogenmod.org/w/Gapps
- extract contents of system folder from gapps-ics-xyz-signed.zip into previously extracted rootfs folder
- e.g. unzip gapps-ics-xyz-signed.zip; sudo cp -pPR system/* rootfs
Optional TFTLCD Resolution Selection:
- LVDS aka TFTLCD resolution hard-coded in kernel
- following pre-compiled kernels provided
uImage-3.1.10-colibri_t20-android-4.0.4-720p
uImage-3.1.10-colibri_t20-android-4.0.4-et070080dh6
uImage-3.1.10-colibri_t20-android-4.0.4-fusion10
uImage-3.1.10-colibri_t20-android-4.0.4-vga
- just symlink desired one as follows:
cd bin; ln -fs uImage-3.1.10-colibri_t20-android-4.0.4-720p uImage; cd ..
- separate kernel replacement can be achieved using -k update.sh script option
Flash NAND:
- EvalBoard V3.1a
- connect USB B (X29) or USB micro A/B (X30) to development workstation using regular or micro USB cable
- the jumper JP2 must be open
- press and hold recovery mode switch (SW9) during power up
- Iris V1.1a
- connect USB micro A/B (X12) to development workstation using regular micro USB cable
- short pin 1-2 of JP1 on Iris for RECOVERY
(other carrier boards see http://developer.toradex.com/knowledge-base/txx-recovery-mode)
- make sure that the carrier board supports USB high speed
- Iris & EvalBoard V3.1a OK, for other carrier boards see http://developer.toradex.com/knowledge-base/usb-2.0-high-speed-%28480mbps%29 )
- apply power or reset
- run update.sh script
- use -r 512 option for 512 MB RAM modules
- use -v V1_1 option for V1.1b or V1.1c modules
Boot from NAND:
- EvalBoard V3.1a
- do no longer press SW9
- Iris V1.1a
- do no longer short any pins of JP1
- power cycle
- upon first boot Java classes are preloaded and cached which takes around 2 minutes, please be patient
Toradex, December 3, 2014
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