Android transplantation on TQ2440 development board

2. Current defects
1. The touch screen is not calibrated
2. The clock in Android stops, the zygote process ends, the system restarts, the clock is updated, but it stops again
III. Porting steps
1. Port the Android kernel to the TQ2440 development board
1. Download linux-2.6.25-android-1.0_r1.tar.gz from http://code.google.com/p/android/downloads/list
2. Unzip the kernel to the user directory, such as /root/kernel.git
3. Enter the kernel.git folder, such as cd ~/kernel.git/
4. Modify the nand flash partition settings in the arch/arm/plat-s3c24xx/common-smdk.c file, such as gedit arch/arm/plat-s3c24xx/common-smdk.c
Modify the static struct mtd_partition smdk_default_nand_part[] structure to:
static struct mtd_partition smdk_default_nand_part[] = {
        [0] = {
               .name        = 5. Download 
               the  IA32 GNU / Linux  TAR  file from  http://www.codesourcery.com/gnu_toolchains/arm/portal/release644 .​​​​ ​​ ​​ ​​ ​ ​​​ 6. Unzip the files to the user directory, such as /usr/local/arm/arm-2008q3 7. Enter the arm-2008q3/bin folder, such as cd ~/arm-2008q3/bin/ 8. Add the current path to the environment variable, such as export PATH=$PWD:$PATH, or modify the ~/.bashrc file and log in again 9. Enter the kernel folder, such as cd ~/kernel.git/ 10. Modify the Makefile file, such as gedit Makefile to change ARCH and CROSS_COMPILE #ARCH  ?= $(SUBARCH) ARCH  ?= arm #CROSS_COMPILE  ?= arm-eabi- CROSS_COMPILE  ?= arm-none-gnueabi- 11. Use make s3c2410_defconfig to configure the 2410 kernel by default 12. Run make menuconfig (1) Make sure the content in System Type ---> ARM system type () is Samsung S3C2410, S3C2412, S3C2413, S3C2440, S3C2442,S3C2443 (2) Make sure System Type ---> S3C2410 Machines --->  SMDK2410/A9M2410 is checked (3) Deselect the content related to Goldfish Device Drivers ---> Character devices ---> < > Goldfish TTY Driver Device Drivers ---> Power supply class support ---> < >  Goldfish battery driver (NEW) Device Drivers ---> Real Time Clock ---> < >  GOLDFISH (NEW) Device Drivers ---> Graphics support - --> Support for frame buffer devices ---> < >  Goldfish Framebuffer (4) Select S3C2410 LCD related content Device Drivers ---> Graphics support ---> Support for frame buffer devices ---> <*>  S3C2410 LCD framebuffer support Device Drivers ---> Graphics support  ---> Bootup logo --->  Standard black and white Linux logo Device Drivers ---> Graphics support --->  Bootup logo --->        
                      
        
        
                      
                      
                      
        
        
                      
                      
                      
        








             
             
      
      







 
 
 

 


   


   Standard 16-color Linux logo
Device Drivers ---> Graphics support ---> 
Bootup logo ---> 
   Standard 224-color Linux logo
(5) Select the required options for the Android kernel
Kernel Features ---> 
Use the ARM EABI to compile the kernel
General setup ---> 
Use full shmem filesystem
General setup ---> 
Enable Android's Shared Memory Subsystem
System Type ---> 
Support Thumb user binaries
Device Drivers ---> Android ---> 
Android log driver
Device Drivers ---> Android ---> <*> Binder IPC Driver
(6) Try to select the optional options for the Android kernel
Device Drivers ---> Android ---> 
RAM buffer console
Device Drivers ---> Android ---> 
Android timed gpio driver
Device Drivers ---> Android ---> 
Only allow certain groups to create sockets
(7) For other CONFIG options, please select them as well if the system supports them
CONFIG_ANDROID_POWER =y
CONFIG_ANDROID_POWER_STAT =y
CONFIG_ANDROID_POWER_ALARM =y
(You can search for ANDROID_POWER and other fields in the Kconfig file to make a selection, or directly modify the .config file)
13. Exit and save .config
2. Port the LCD driver to the Linux-2.6.25 kernel (Steps 2, 3, and 4 can refer to the manual, or refer to my other articles) For the
LCD porting of TQ2440, please refer to my other article: http://www.arm9.org.ru/viewthread.php?tid=3&extra=page=1
3. Port the touch screen driver to the Linux-2.6.25 kernel For

        the touch screen porting of TQ2440, please refer to my other article: http://www.arm9.org.ru/viewthread.php?tid=4&extra=page=1
Change line 256
        ts.dev->evbit[0] = BIT(EV_SYN) | BIT(EV_KEY) | BIT(EV_ABS);
        ts.dev->keybit[BIT_WORD(BTN_TOUCH)] = BIT(BTN_TOUCH);
to:
ts.dev->evbit[0] = BIT_MASK(EV_SYN) | BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
ts.dev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
4. Porting the network card driver to the Linux-2.6.25 kernel For

        the network card porting of TQ2440, please refer to my other article: http://www.arm9.org.ru/viewthread.php?tid=5&extra=page=1
5. Making an Android root file system that supports ARMv4 1. Download the Android root file system
from http://d.namipan.com/d/403e5eb4ec3af5d8029d9948 79808140f0c9222be3858a02
or
http://www.hiapk.com/bbs/download.php?keyid=f5d23685c772ca9eb4772a6a 86274a1705ef58019c851c39 72830c94b24c361d
Download the Android ARMv4 version root file

2. Add two device nodes, null and console, under /dev
mknod -m 660 null c 1 3
mknod -m 660 console c 5 1

3. In U-boot, modify the boot parameter init to /init. The complete command line is as follows:

a. Press and hold the space bar when starting up
b. Select [0] Set the boot parameters
c, [1] Set NFS boot parameter
d. Enter 192.168.1.3 (this is the IP address of your PC, mine is this), and press Enter
e. Enter 192.168.1.6 (this is the board IP, the default one), press Enter, enter 255.255.255.0
f, then select [3] Set parameter, this is very important, enter bootargs, press Enter, enter console=ttySAC0 root=/dev/nfs init=/init nfsroot=192.168.1.3:/root_nfs ip=192.168.1.6:192.168.1.3:192.168.1.6:255.255.255.0: www.arm9.org.ru:eth0:
off g, save and restart

Note: The kernel file that comes with TQ2440 seems to have problems with nfs startup. It is recommended to refer to step 5 to drive the network card; /root_nfs is your nfs directory, set it to your own
4. Modify the /init.rc file and remove all mount commands except mount tmpfs tmpfs /sqlite_stmt_journals size=4m
The system is complete, and you should be able to see a beautiful big table now. You need to create files for the first startup. TQ2440 starts relatively quickly, about 5 minutes. Then each startup only takes 1 minute.

Postscript: At this point, Android can be driven. Because the file system is too large, the file system has more than 70 megabytes, and 2440 has only 64m of space, so it can only use nfs. One day, I have time to streamline the file system, maybe it can be reduced to 64m, and I will write about it later!


Note: The above links for the touch screen, LCD, and network card drivers are based on 2.6.29, while the Android kernel is currently 2.6.25. For the 2.6.25 driver, please refer to the TQ2440 official document.
I. Current progress
1. Android can already run on the TQ2440 development board via NFS

2010.03.12 update: I recently compiled the Android file system myself and ran it on TQ. It has more bin programs than the Panda version, and the basic functions have been realized. You can download the file system from:
http://d.namipan.com/d/b64ce43b2388e5e1f66af181 49824b98cd13b926c4921f02
and try it out. I will organize it another day and send a detailed transplantation process and precautions.
2010.04.09 update:
Network settings:
route add default gw 192.168.1.1 dev eth0
setprop net.dns1 202.120.223.5
2010.05.08 update:
1. Use ADB
Ubuntu:
export ADBHOST=192.168.1.101
adb kill-server
adb start-server
adb shell
2. Battery causes shutdown during startup
Modification: frameworks/base/services/jni/com_android_server_BatteryService.cpp, see the attached patch. Add setprop battery.fake_ac 1
in the init.rc file