SDEDM_WRITE_THRESHOLD_SHIFT  259 drivers/mmc/host/bcm2835.c 		  (SDEDM_THRESHOLD_MASK << SDEDM_WRITE_THRESHOLD_SHIFT));
SDEDM_WRITE_THRESHOLD_SHIFT  261 drivers/mmc/host/bcm2835.c 		(FIFO_WRITE_THRESHOLD << SDEDM_WRITE_THRESHOLD_SHIFT);