How to interpret startup error with PON REASON:PM0?

Hi. Could someone tell me how to decipher the following messages on power up?
B - 332663 - PON REASON:PM0:0x800000080 PM1:0x2000000a0 in particular?
Is there a document somewhere that lists what these hex values mean?
Thanks,
kim

Format: Log Type - Time(microsec) - Message - Optional Info
Log Type: B - Since Boot(Power On Reset), D - Delta, S - Statistic
S - QC_IMAGE_VERSION_STRING=BOOT.XF.1.0-00301
S - IMAGE_VARIANT_STRING=M8996LAB
S - OEM_IMAGE_VERSION_STRING=crm-ubuntu68
S - Boot Interface: UFS
S - Secure Boot: Off
S - Boot Config @ 0x00076044 = 0x000001c9
S - JTAG ID @ 0x000760f4 = 0x4003e0e1
S - OEM ID @ 0x000760f8 = 0x00000000
S - Serial Number @ 0x00074138 = 0xa9baea50
S - OEM Config Row 0 @ 0x00074188 = 0x0000000000000000
S - OEM Config Row 1 @ 0x00074190 = 0x0000000000000000
S - Feature Config Row 0 @ 0x000741a0 = 0x0050000010000100
S - Feature Config Row 1 @ 0x000741a8 = 0x00fff00001ffffff
S - Core 0 Frequency, 1228 MHz
B - 0 - PBL, Start
B - 10413 - bootable_media_detect_entry, Start
B - 47077 - bootable_media_detect_success, Start
B - 47081 - elf_loader_entry, Start
B - 48106 - auth_hash_seg_entry, Start
B - 48207 - auth_hash_seg_exit, Start
B - 79999 - elf_segs_hash_verify_entry, Start
B - 82502 - PBL, End
B - 84546 - SBL1, Start
B - 180560 - usb: hs_phy_nondrive_start
B - 180895 - usb: PLL lock success - 0x3
B - 183884 - usb: hs_phy_nondrive_finish
B - 188002 - boot_flash_init, Start
D - 30 - boot_flash_init, Delta
B - 195108 - sbl1_ddr_set_default_params, Start
D - 30 - sbl1_ddr_set_default_params, Delta
B - 203099 - boot_config_data_table_init, Start
D - 92293 - boot_config_data_table_init, Delta - (60 Bytes)
B - 299906 - CDT Version:3,Platform ID:24,Major ID:1,Minor ID:0,Subtype:0
B - 304603 - Image Load, Start
D - 22296 - PMIC Image Loaded, Delta - (37272 Bytes)
B - 326899 - pm_device_init, Start
B - 332663 - PON REASON:PM0:0x800000080 PM1:0x2000000a0