TCR_TG1_SHIFT
#define TCR_TG1_16K (1UL << TCR_TG1_SHIFT)
#define TCR_TG1_4K (2UL << TCR_TG1_SHIFT)
#define TCR_TG1_64K (3UL << TCR_TG1_SHIFT)
#define TCR_TG1_MASK (3UL << TCR_TG1_SHIFT)
return ((reg >> TCR_TG1_SHIFT) & TG_MASK);