rk3288芯片简介

rk3288芯片：

qual-core arm cortex A17

full implementation of the arm architecture v7-A instruction set

trustzone technology support

SCU ensure memory coherency between the fore CPUs

integrated 32kb L1 instruction cache，32kb L1 data cache

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20kb bootrom：

support system boot from following device：

nandflash interface

spi interface

emmc interface

sdmmc interface

support system code download from following device：

USB OTG interface

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100kb internal SRAM：

support security and non-security access

security or non-security space issoftware programable

security space can be 0kb -up to 96kb by 4kb step

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external memory or storage device:

dynamic memory interface

nand flash interface

emmc and sd/mmc intrface

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the fig is rk3288 bootprocedure flow：