MTK平台各种分区和bin/img（线刷包）对应关系和作用说明

2024-07-12 03:15| 来源: 网络整理| 查看: 265

MTK platform partition meaning

Pre-loader

Pre-loader imageHandles all the download and secure boot procedure DSP_BL DSP Boot Loader MBR、EBR1、EBR2 Ext4 file system partition index table PMT Partition management table NvRam Stores the hardware related information, such as calibration data, MAC address, IMEI … etc SECCFG and SECSTATIC Reserved for the security platform used protect1 or protect_f store SIM LOCK protect2 or protect_s backup SIM LOCK pgpt Partition management table, compared with MBR sgpt backup of pgpt oemkeystore and keystore image authentication key for verified boot, not used yet tee1 Trusted Excution Environment(https://www.trustonic.com/technology/trustzone-and-tee) tee2 backup of tee1 U-boot/LK Second loader imageHandles most hardware initializations and bring-up entire Linux kernel Boot image Linux kernel image and it's root file system Recovery Recovery kernel image and it's root file systemHandles all the system recovery and firmware update functionalities SEC_RO or SECRO Reserved for the security platform used Misc Used for the recovery procedure (power loss) Logo Boot-up logo image EXPDB Store Exception database System Android system image Cache For Android internal used Store Android internal cache data or web cache data User data Used for Android system to store user data such as user contacts, settings, installed applications … etc FAT/intsd Internal sdcard on emmc OTP Otp(one time program) area on emmc flashinfo flash tool download information BMTPOOL Handles Bad Block Management（nandflash used and reserved on emmc） PARA save parameter for recovery FRP factory reset for protect , used for stolen phones NVDATA store data in data/nvram/ PROINFO a nvram partition, store one struct default, can be added md1img, md1dsp,md1arm7, md3img For Android M, MD image have switched to MD standalone partition, all modem images will be load from the partition: md1img, md1dsp, md1arm7 and md3img scp1,scp2 system control processor, used for recovery fail lk1,lk2 used for the case of update lk throught OTA fail persist store data which will be stable for a long time metadata store master key for data encryption nvcfg nvram config, controlled by MTK_NVCONFIG_PARTITION_SUPPORT, not used yet custom customization partition, controlled by MTK_CIP_SUPPORT efuse download BB chip's efuse ppl

Privacy protection lock，used for mobile phone antitheft

MTK平台各种分区和bin/img（线刷包）对应关系和作用说明

码叔博客 dz2015 2017-09-27 3308 次浏览 0个评论

分析的平台是MTK某手机设备，Android 6.0。有一些没有可靠资料，是个人猜测总结。

1、sercro-secro.img

用于安卓系统启动时的防盗版功能,nodl_secro.bin==secro.img。

2、boot-boot.bin

kernel+ramdisk。

3、preloader-preloader_产品名称.bin

和芯片密切相关，bootRom加载preloader到ISRAM执行。

4、logo-logo.bin

如果LOGO配置为vga，则为vga_uboot.bmp+vga_kernel.bmp。

5、system-system.img

安卓文件系统，apps目录下的apk不允许用户删除。

6、userdata-userdata.img

用户数据区，apps目录下的apk允许用户删除。

7、recovery-recovery.img

ramdisk-recovery.img==recovery.img。

8、lk-lk.bin

被preloader加载到DRAM后执行，有可能是uboot或者其他用于加载内核的程序，是否编译uboot是在ProjectConfig.mk中配置的。

9、lk2-lk.bin

为什么要两个一样的bootloader分区，还没研究明白。

10、tee1-trustzone.bin

TrustZone,信任区,查到的资料是arm提供的硬件级别安全解决方案，由芯片厂家实现，移动支付等安全性要求高的场合用到。所以tee应该是Trusted Execution Environments缩写，这个分区和TrustZone方案实现有关了。

11、tee2--trustzone.bin

同tee1。

12、cache-cache.bin

该分区的文件重启后被清空。

13、md1img-md1img.img

14、md1dsp-md1dsp.img

15、md1arm7-md1arm7.img

16、md3img-md3rom.img

13到16没有找到资料，但是分析/device/mediatek/build/build/tools/modem/modem_Android.mk,这几个文件就是/device/mediatek/build/build/tools/modem/下的这几个img直接拷贝过去的。所以这几个分区应该是modem有关分区，烧写这些分区就是俗称的刷基带了，md可能是modenm缩写。资料称，modem是MTK提供源码，射频工程师修改射频参数编译后被整合到android源码的，所以android源码中只有modem的img文件了。

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