d4: PCU_CR_PCODE_UCODE_Mailbox_Interface
d8: PCU_CR_PCODE_UCODE_Mailbox_Data
4900: PCU_CR_MICROCONTROLLER_CONFIGURATION
4cd8: B_CR_EMRR_BASE
4ce0: B_CR_EMRR_MASK
50d4: FUNNYIO_CR_SCP_SMM_FEATURE_CONTROL
50d8: FUNNYIO_CR_SCP_SE_STATE
