S5L8920/Hardware

RAM

• 0x40000000 through ?
• 0x4F000000 through ?
• 0x84000000 through 0x84038000
• 0x84100000 through 0x84103000

Peripherals

CHIPID

Base: 0xBF500000
Register	Description
0x00	Bit 0 (1bit): Production Mode Bit 1 (1bit): Chip Firmware Bit 2 (1bit): Security Domain Bit 8 (1bit): Allow WFI (If 0, bit 8 of the aux control register is set at boot, causing WFI instructions to be parsed as a NOP) Bit 9 (1bit): Minimum Epoch Bit 10 (1bit): Chip Revision

Addresses

• sha1: 0x80100000 (device id = 0x22)
• pke: 0x83100000 (device id = 0x21)
• aes: 0x87801000 (device id = 0x25)
• vic: 0xBF200000
• chipid: 0xBF500000

Misc

• Ramdisk Default Load Addr: 0x44000000
• iBoot Load Addr: 0x4FF00000
• LLB Load Addr: 0x84000000
• SecureROM Load Addr: 0x0

The bootloader on iOS devices and some later iPods, or a general name for the pre-kernel boot process

Low Level Bootloader, a component that runs setup routines before starting iBoot

The first significant code that runs on an iOS device