IBL是不是有两个部分组成？IBLinit和IBLmain

IBL是不是有两个部分组成？IBLinit和IBLmain，为什么要把IBL设计成两个部分？IBLinit和IBLmain作用各是什么？

Shine：

请参考下面e2e上的帖子。
e2e.ti.com/…/394802

IBL is designed as a two stage bootloader, the iblinit and the iblmain.

The iblinit does the PLL initialization and executes a PLL workaround code to get around a silicon bug in revision 1.0 chips and jumps back to Boot ROM for non I2C boot modes.

The ibl main is the main bootlaoder that does pulls ELF data from the boot device (NAND/NOR/TFTP ..) and launches it.