3 The on-chip **BOOTROM** first sets up the L2 cache and the SPI controller.
4 It then reads **CSIB_NBL1FW** and **CLIB_NBL1FW** configuration data to get
5 the position of the bootstage in flash. It then loads 192KiB from flash into
6 L2 cache to a fixed address. The boot mode is called "Non-Secure-Boot" as
7 the signature of the bootstage isn't verified.
8 The **BOOTROM** can do AES decryption for obfuscation or verify the signature
9 of the bootstage. Both features aren't used and won't be described any further.
11 * The typical position of bootstage in flash is at address **0x20000**.
12 * The entry point in physical DRAM is at address **0x100000**.
16 ![Bootflow of Cavium CN8xxx SoCs][cavium_bootflow]
18 [cavium_bootflow]: cavium_bootflow.png