BOOT_STAGE (PMU_LOCAL) Register Description
| Register Name | BOOT_STAGE |
|---|---|
| Offset Address | 0x0000000304 |
| Absolute Address | 0x00FFD60304 (PMU_LOCAL) |
| Width | 32 |
| Type | rwNormal read/write |
| Reset Value | 0x00000000 |
| Description | PMU Boot Stage and General Purpose Read-Write. |
During boot, this register holds a code specify which stage in boot the PMU is currently in. After boot, this register can be used by the Firmware as a general storage register. Its contents are not modified or used by the PMU ROM after handoff to the Firmware.
BOOT_STAGE (PMU_LOCAL) Register Bit-Field Summary
| Field Name | Bits | Type | Reset Value | Description |
|---|---|---|---|---|
| Reg | 31:0 | rwNormal read/write | 0x0 | 0000_0000 h: PMU ROM Pre-boot Initialization 0000_0001 h: ScanClean of the LPD and FPD 0000_0002 h: PS SysMon Initialization 0000_0004 h: IOPLL and DPLL Lock Acquisition Begin 0000_0008 h: PMU_RAM and CSU_RAM Zeroization 0000_0010 h: IOPLL and DPLL Lock Check and MBIST Clk Configuration 0000_0020 h: Check VCC_PSINTLP, VCC_AUX, and VCC_PSIO3 Supply Voltages 0000_0040 h: BISR Clear FPD Domain 0000_0080 h: BIST Clear LPD and FPD Domains 0000_0100 h: Power Down Disabled IP 0000_0200 h: Release CSU 0000_0400 h: Enter PMU ROM Serivce Mode FFFF_FFFF h: Boot Complete |