MESON_SDHC_PDMA_RXFIFO_MANUAL_FLUSH
val = FIELD_PREP(MESON_SDHC_PDMA_RXFIFO_MANUAL_FLUSH,
MESON_SDHC_PDMA_RXFIFO_MANUAL_FLUSH,
FIELD_PREP(MESON_SDHC_PDMA_RXFIFO_MANUAL_FLUSH,