Android 驱动（5）---MTK 平台分区表

MTK platform partition meaning

Pre-loader
- Pre-loader image
- Handles 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 image
- Handles 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 system
- Handles 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

Android 驱动（5）---MTK 平台分区表相关推荐

android 遥控器映射,MTK 平台Android系统遥控器映射关系
MTK 平台Android系统遥控器映射关系在我们工作中,经常要去适配遥控器的工作,但是大部时候我们是移植其他工程上的代码来修改,可能对Android系统中的按键关系有些不清楚,下面以MTK平台为例 ...
Android Camera (13)---MTK平台相机插值修改
MTK平台相机插值修改一.注意事项二.HAL层修改三.APP层修改四.部分插值整理五.快速编译指令一.注意事项 Camera插值在底层已经做好,我们只需要在中间层和app层添加一个对应的p ...
mtk android tv软件架构,MTK 平台Camera 驱动架构
Platform_driver 这个结构体包含 Probe(). Remove()等函数来完成驱动的填充. b)设备的注册: 对 platform_device 的定义通常在 BSP 的板级文件( k ...
android 9.x MTK平台讯飞输入法重启被卸载
引言平台信息:mt8788平台 android9.0 问题描述:安装讯飞输入法,重启机器,讯飞输入法消失分析过程安装apk后,adb shell进入机器,查看/data/app里面的文件 C:\ ...
Android 8.1 MTK平台导入GMS包后安装的应用无法启动， GoogleDialerGo
在Android 8.1 的代码里面,导入GMS包后发现系统应用可以正常运动,但安装的三方应用直接就是闪退,一直以为是GMS导致的问题. 添加GMS 包(GooglepackageInstaller ...
Android 9.0 MTK平台修改热点自动关闭功能（保持热点打开）
1.热点无连接状态,默认10分钟会自动关闭,代码位置 frameworks/opt/net/wifi/service/java/com/android/server/wifi/SoftApManage ...
Android O(29 )---MTK 平台代码同步
MTK 驱动（69）---MTK平台电池驱动相关
MTK平台电池驱动相关 MTK平台电池驱动一.相关代码路径(mt6755/Android6.0) alps/kernel-3.18/drivers/misc/mediatek/include/m ...
修改MTK平台Android P系统支持系统A/B分区升级
文章目录一.device目录下的修改二.kernel 目录下的修改三.lk目录下的修改四.preloader目录下的修改五.修改img分区大小六.Android A/B System OT ...

Android 驱动（5）---MTK 平台分区表

Android 驱动（5）---MTK 平台分区表相关推荐

最新文章

热门文章