MTK Partitions

mtk-partitions.txt

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

partition simlock