将Android移植到FS2410开发板上

一、目前进展

1．Android已经可以通过NFS在FS2410开发板上运行

二、目前缺陷

1．触摸屏没有校准

2．Android中时钟停止，结束zygote进程，系统重启，时钟更新，但再次停止不动

3．串口无法与GPRS模块通讯

三、移植步骤

一、移植Android内核到FS2410开发板上

1、从http://code.google.com/p/android/downloads/list上下载linux-2.6.25-android-1.0_r1.tar.gz

2、将内核解压到用户目录，如/home/wangan/kernel.git

3、进入kernel.git文件夹，如cd ~/kernel.git/

4、修改arch/arm/plat-s3c24xx/common-smdk.c文件中的nand flash分区设置，如gedit arch/arm/plat-s3c24xx/common-smdk.c

修改static struct mtd_partition smdk_default_nand_part[]结构体为：

static struct mtd_partition smdk_default_nand_part[] = {

[0] = {

.name = "Boot Agent",

.size = SZ_256K,

.offset = 0,

[1] = {

.name = "Linux Kernel",

.offset = SZ_256K,

.size = SZ_2M - SZ_256K,

[2] = {

.name = "File System",

.offset = SZ_2M,

.size = SZ_32M - SZ_2M,

[3] = {

.name = "Other",

.offset = SZ_32M,

.size = SZ_32M,

}

};

5、在http://www.codesourcery.com/gnu_toolchains/arm/portal/release644网站上下载IA32 GNU/Linux TAR。

6、将文件解压到用户目录，如/home/wangan/arm-2008q3

7、进入arm-2008q3/bin文件夹，如cd ~/arm-2008q3/bin/

8、添加当前路径进入环境变量，如export PATH=$PWD:$PATH，或修改~/.bashrc文件并重新登录

9、进入内核文件夹，如cd ~/kernel.git/

10、修改Makefile文件，如gedit Makefile

更改ARCH和CROSS_COMPILE

#ARCH ?= $(SUBARCH)

ARCH ?= arm

#CROSS_COMPILE ?= arm-eabi-

CROSS_COMPILE ?= arm-none-eabi-

11、从华清远见Linux-2.6.8.1内核压缩包中提取.config文件（注意：config前面有个“.”）放入kernel.git文件夹

12、运行make menuconfig

(1) 确保System Type ---> ARM system type ()中的内容为Samsung S3C2410, S3C2412, S3C2413, S3C2440, S3C2442, S3C2443

(2) 确保System Type ---> S3C2410 Machines ---> [*] SMDK2410/A9M2410被勾选

(3) 取消选择与Goldfish相关的内容

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) 选择S3C2410 LCD相关的内容

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) 选中Android内核必须选项

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) 尽量选中Android内核可选选项

Device Drivers ---> Android ---> [*] RAM buffer console

Device Drivers ---> Android ---> [*] Android timed gpio driver

Device Drivers ---> Android ---> [*] Only allow certain groups to create sockets

(7) 其余CONFIG选项，如系统支持请一并选择

CONFIG_ANDROID_POWER =y

CONFIG_ANDROID_POWER_STAT =y

CONFIG_ANDROID_POWER_ALARM =y

（可以在Kconfig文件中查找ANDROID_POWER等字段进行选择，或者直接修改.config文件）

13、退出并保存.config

二、移植LCD驱动到Linux-2.6.25内核

1、进入kernel.git文件夹，如cd ~/kernel.git/

2、修改arch/arm/mach-s3c2410/mach-smdk2410.c文件，如gedit arch/arm/mach-s3c2410/mach-smdk2410.c

(1) 增加头文件#include <asm/arch/fb.h>

(2) 增加两给结构体

static struct s3c2410fb_display smdk2410_lcd_cfg __initdata = {

.lcdcon5 = S3C2410_LCDCON5_FRM565 |

S3C2410_LCDCON5_INVVLINE |

S3C2410_LCDCON5_INVVFRAME |

S3C2410_LCDCON5_PWREN |

S3C2410_LCDCON5_HWSWP,

.type = S3C2410_LCDCON1_TFT,

.width = 320,

.height = 240,

.pixclock = 174757,

.xres = 320,

.yres = 240,

.bpp = 16,

.left_margin = 16,

.right_margin = 59,

.hsync_len = 9,

.upper_margin = 2,

.lower_margin = 6,

.vsync_len = 16,

};

static struct s3c2410fb_mach_info smdk2410_fb_info __initdata = {

.displays = &smdk2410_lcd_cfg,

.num_displays = 1,

.default_display = 0,

.gpccon = 0xaa955699,

.gpccon_mask = 0xffc003cc,

.gpcup = 0x0000ffff,

.gpcup_mask = 0xffffffff,

.gpdcon = 0xaa95aaa1,

.gpdcon_mask = 0xffc0fff0,

.gpdup = 0x0000faff,

.gpdup_mask = 0xffffffff,

.lpcsel = 0xf82,

};

(3) 在smdk2410_init（）函数中增加s3c24xx_fb_set_platdata(&smdk2410_fb_info);

三、移植触摸屏驱动到Linux-2.6.25内核（参见《基于linux-2.26.5内核的FS2410开发板触摸屏驱动移植》）并制作zImage文件，如make

这里提一下，确保已经勾选Device Drivers ---> Input device support ---> <*> Event interface，本人曾经在这里徘徊，感谢游老师悉心教诲！

四、制作支持ARMv4的Android根文件系统

1、从http://www.rayfile.com/files/d4660882-de04-11dd-af0d-0014221b798a/下载Android的ARMv4版本根文件

2、在/dev下增加null和console两个设备节点

mknod -m 660 null c 1 3

mknod -m 660 console c 5 1

3、在U-boot中修改启动参数init为/init，完整的命令行如：root=nfs nfsroot=169.254.7.118:/source/rootfs ip=169.254.7.119 console=ttySAC0,115200 init=/init

4、修改/init.rc文件，去除除mount tmpfs tmpfs /sqlite_stmt_journals size=4m之外的所有mount命令

系统制作完成，现在应该可以看到漂亮的大表了。首次启动需要创建文件，大约17分钟。然后每次启动只需要2分钟。

本文来自CSDN博客，转载请标明出处：http://blog.csdn.net/java211/archive/2009/02/02/3857595.aspx

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