L27.INC1.6.2 OMAP4 Froyo ES2 Community Release Notes

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This release has been developed and tested in the following environment.

OS Kernel: Linux® 2.6.32.
AndroidTM Froyo public project.
Toolchain: CodeSourcery compiler version 2009q1.
Manifest: 27.5.2_Manifest.
U-boot version: 5230bd63edb893fef3fca8b22b9f28d9c4a22eed
X-loader version: a095a53d29bdc3e5c8cca03828c642ca234a32df
kernel version: a8b5446393aaf989a705385fbda9bd92f49a9b8e

Release Content

The release refers to the source code in git trees and the binary packages are distributed in different projects. The next section on how to build will help pull them into the correct directories to integrate the software system. This release also contains WLAN (1271/1283) and Graphics packages. Details are given below in "Build and Installation Instructions"

Supported MM Use Cases(ARM side) in the Community Release

OMAPpedia is an excellent source for details on the various components. There is a project listing in the main page on the various components. You may also go and check the following: Refer to BSP release notes at


Power Management materials PM is enabled by default in the kernel, but for enabling any of the features we need to use some sysfs entries from user space:


Source code
Release Manifest for open code source. Release Tag - RLS27.5.2_Froyo

IMPORTANT: kernel source has been removed from the manifest so it is not included in this manifest and thus you have to clone it separately.

Please note: for U-Boot and X-Loader "omap4_dev" branch was used; and at present is part of the manifest.

Build and Installation Instructions

Building the Bootloader, Kernel, WLAN driver(1283) and Android File System
The details are given at http://omappedia.org/wiki/L27.INC1.5.2_Froyo_ES2_Release_Notes#Build_Instructions

Pre-built binaries from this release can be obtained from Package.

Please note this release is tested with Android codecs and have followed instructions to enable them while building.

If you have a COM6 chip (127x WLAN), please follow the steps mentioned below for following build the WLAN driver. Please note it requires a patch to be applied on the Android File System. Hence, it will be required to build the AFS after applying the patch.

Building WLAN driver(1271)
Download the WLAN 1271 Connectivity Package.
It has the patch, firmware binary and BT/FM init scripts.

  • 0001-Patch-for-WL1271-on-Blaze.patch must be applied to WiLink6 driver in order to load the driver on Blaze + COM6 setup.
    Apply the patch:
    $cd $MYDROID
    $cd hardware/ti/wlan/
    To check whether the WiLink6 driver is latest, check the git log for following commit ID: c7155066d87dab9844d239ab00f82c3df26b2c75
    $git apply --stat --check -v <Path to patch 0001-Patch-for-WL1271-on-Blaze.patch > //to check whether old patch can be applied or not
    $git apply -v <Path to patch 0001-Patch-for-WL1271-on-Blaze.patch > //to actually apply patch
  • Building WLAN Driver
    Update following environment variables in wl_env.bash file located at
    $MYDROID/ hardware/ti/wlan/wl1271/platforms/os/linux/ .
    export CROSS_COMPILE=arm-none-linux-gnueabi-
    export ARCH=arm
    export HOST_PLATFORM=blaze
    export KERNEL_DIR=<path to the kernel folder which was built above>
    $cd $MYDROID/ hardware/ti/wlan/wl1271/platforms/os/linux/
    We will get tiwlan_drv.ko in $MYDROID/ hardware/ti/wlan/wl1271/platforms/os/linux/
  • Configuration for WLAN
    Make sure the file vendor device $MYDROID/ti/blaze/BoardConfig.mk has all wifi related definitions:
    1. Wifi
    BOARD_WLAN_DEVICE  := wl1271
    WIFI_DRIVER_MODULE_PATH  := "/system/etc/wifi/tiwlan_drv.ko"
    WIFI_DRIVER_MODULE_NAME  := "tiwlan_drv"
    WIFI_FIRMWARE_LOADER  := "wlan_loader"
    Make sure the system property file $MYDROID/device/ti/blaze/system.prop has definition for wifi interface

    Installing 1271/1283 WLAN firmware from the package
    Place the file tiwlan_drv.ko build from previous step to system/etc/wifi. Go to platform/os/linux folder and copy the required files to file system:
    $ cd $MYDROID/hardware/ti/wlan/(wl1283 or wl1271)/platforms/os/linux
    $ cp tiwlan_drv.ko $MYDROID/out/target/product/blaze/system/etc/wifi
    Another file, firmware.bin is also required but this must be obtained from the package from the below link.
    Please download one of the package - depending on what WLAN hardware chip you are using
    WLAN 1283 Connectivity Package
    WLAN 1271 Connectivity Package
    $ chmod 777 [WLAN Package name]
    $./[WLAN Package Name]
    $ cd $MYDROID/out/target/product/blaze/system/etc/wifi
    $ cp $YOUR_PATH/WLAN_firmware/firmware.bin .
    $ chmod 777 $MYDROID/out/target/product/blaze/system/etc/wifi/firmware.bin

    Installing GFX binaries from the package
    Package can be obtained from the GFX link
    $ chmod 777 GFX package name
    $ ./GFX package name
    Accept the terms and install it at your filesystem location e.g. YOUR_PATH/myfs

    Booting Kernel and Android® File System from SD card

    The instruction on formatting the SD card and copying the environment can be found at http://omappedia.org/wiki/Android_SD_Configuration http://omappedia.org/wiki/Flashing_Android#Flashing_to_SD

    Please note this release has been tested on OMAP4430 ES2 EMU device on Blaze platform and will requires a signed x-loader. Please contact TI customer representative to get access to the signing tool.

    New in this Release

    • This release was validated using "Froyo" public branch
    • This release uses Android codecs
    • This release is on 2.6.32 Kernel.
    • Dynamically switching from speakers/headphones is now working.
    • WLAN packages are part of this release
    • Graphic binary package is part of this release

      Limitations/Known Issues


      • When Froyo image boots up For first time there will be a window asking, Complete action using: Com.android.provision.DeFault.Activity Com.android.sdksetup.DeFault.Activity . Choose the first one - Com.android.provision.DeFault.Activity
      • UI experience is faster as compared to eclair
      • You will have to press F1 key everytime before unlocking the UI
      • The board overheats while it is connected to the power supply.
      • Camera preview/functionality is not supported on this release due to licensing restrictions. Whenever the OMAP4 Camera app is opened the system prompts:Sorry! The application OMAP4 Camera (process com.ti.omap4.android.camera) has stopped unexpectedly. Please try again Force close

        Use Case Test Results

        Test Case ID Test Case Name Validation Criteria Sample file Test Result Comments

        1 Boot from SD Android boots from SD card N/A Pass Android boots up and the Home screen is displayed on the LCD
        2 WLAN Scan wireless network and connect NA Pass Could found wireless network and connect to it
        3 WLAN - Browse webpage Open browser and connect to google.com and other webpages NA Pass Could browse web pages on internet


        OMAPWorld.com and OMAPpedia.org may be good starting places.

        IRC Chat - #linux-omap
        Googlegroups - OMAPDiscuss

        Mailing List - OMAPAndroid Discussion list
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