CONFIG_ARCH_ALPINE is not available for thedefaultarchitecture x86.
Result is shown for architecture arm
Annapurna Labs Alpine platform
configname: CONFIG_ARCH_ALPINE
Linux Kernel Configuration
└─>Annapurna Labs Alpine platform
In linux kernel since version 3.10 (release Date: 2013-06-30)
This enables support for the Annapurna Labs Alpine V1 boards.
selects
CONFIG_ALPINE_MSICONFIG_ARM_AMBA
CONFIG_ARM_GIC
CONFIG_GENERIC_IRQ_CHIP
CONFIG_HAVE_ARM_ARCH_TIMER
CONFIG_HAVE_SMP
CONFIG_MFD_SYSCON
CONFIG_PCI
CONFIG_PCI_HOST_GENERIC