CONFIG_ARCH_ORION5X is not available for thedefaultarchitecture x86.
Result is shown for architecture arm
Marvell Orion
configname: CONFIG_ARCH_ORION5X
ARM system type
└─>Marvell Orion
In linux kernel since version 2.6.26 (release Date: 2008-07-13)
Support for the following Marvell Orion 5x series SoCs:
Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
Orion-2 (5281), Orion-1-90 (6183).
Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
Orion-2 (5281), Orion-1-90 (6183).
is selected by
CONFIG_ARCH_ORION5X_DTCONFIG_MACH_DB88F5281
CONFIG_MACH_RD88F5182
CONFIG_MACH_RD88F5182_DT
CONFIG_MACH_KUROBOX_PRO
CONFIG_MACH_DNS323
CONFIG_MACH_LINKSTATION_PRO
CONFIG_MACH_LINKSTATION_MINI
CONFIG_MACH_LINKSTATION_LS_HGL
CONFIG_MACH_TS78XX
CONFIG_MACH_D2NET_DT
CONFIG_MACH_NET2BIG
CONFIG_MACH_MSS2_DT
CONFIG_SATA_MV