TTB_FLAGS_UP       30 arch/arm/mm/proc-v6.S #define TTB_FLAGS_UP	TTB_RGN_WBWA
TTB_FLAGS_UP       20 arch/arm/mm/proc-v7-2level.S #define TTB_FLAGS_UP	TTB_IRGN_WB|TTB_RGN_OC_WB
TTB_FLAGS_UP       24 arch/arm/mm/proc-v7-3level.S #define TTB_FLAGS_UP	(TTB_IRGN_WB|TTB_RGN_OC_WB)