MST_FPGA_VIRT 19 arch/arm/mach-pxa/include/mach/mainstone.h #define MST_P2V(x) ((x) - MST_FPGA_PHYS + MST_FPGA_VIRT) MST_FPGA_VIRT 20 arch/arm/mach-pxa/include/mach/mainstone.h #define MST_V2P(x) ((x) - MST_FPGA_VIRT + MST_FPGA_PHYS) MST_FPGA_VIRT 607 arch/arm/mach-pxa/mainstone.c .virtual = MST_FPGA_VIRT,