PXA3xx Boot ROM Reference Manual - Marvell

• IssueDate – Date this module was created.• OEMUniqueID – OEM-specific identifier.7.1.2 Flash InformationTable 39:The Flash Information substructure identifies boot flash properties and the location of the WirelessTrusted Module (Marvell WTM) save state, as follows.• WTMFlashSign – Signature that provides the Marvell WTM save state location. The upperthree bytes contain an ASCII-encoded hexadecimal value of XIP for XIP or NAN for NAND,Samsung OneNAND, and SanDisk ® (formerly MSystems) flash. The lower byte is theplatform fuse encoding that determines the flash device being used.• WTMEntryAddr – Address offset from the base of the flash device to the location of the primaryMarvell WTM save state block.• WTMEntryAddrBack – Address offset from the base of the flash device to the location of thebackup Marvell WTM save state block.• Reserved[2] – Reserved for future use.• BootFlashSign – Signature that determines from which flash the platform boots. The upperthree bytes contains an ASCII-encoded hexadecimal value of XIP for XIP or NAN for NAND,OneNAND, and SanDisk flash. The lower byte contains the platform fuse encoding thatdetermines the flash device being used. The BootFlashSign values are noted in Table 39.BootFlashSign DefinitionsBootFlashSign value Platform Boot Device Encoded HEX Value0x4E41_4E06 x8 NAND device on DF_nCS0 NAN’060x4E41_4E04 x16 NAND device on DF_nCS0 NAN’040x4E41_4E01x16 SanDisk mDOC on SMEMC NAN’01nCS20x4E41_4E02x16 OneNAND on SMEMC on NAN’02nCS20x5849_5005 x16 XIP NOR XIPB Flash on nCS2 XIP’050x5849_5007 x16 XIP NOR XIPA Flash on nCS2 XIP’07NOTE: XIPB and XIPA support different command sets. Refer to Table 14 for further information. Other NORflash memories may be used.7.1.3 TIM Sizing Information• NumImages – Number of “IMAGE INFORMATION” substructures in the trusted image module.• NumKeys – Number of “KEY INFORMATION” substructures in the trusted image module.• SizeOfReserved – Size of the reserved area; values can range from 0 to 4 KB – (size of othertrusted image module information).7.1.4 Image Information ArrayThe Image Information Array is a substructure that contains information about each image loadedinto the boot flash. The number of substructures is determined by the NumImages field above.• ImageID – A unique identifier for the image. The "OBMI" identifier must be present in thearray for the Boot ROM to correctly boot the platform. Other identifiers can be determined bythe OEM, but are limited to 32 bits in size.• NextImageID – Next image that should be loaded from flash memory.12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758Copyright © 2010 Marvell PUBLIC RELEASE Doc. No. MV-S301208-00 Rev. -Page 73