MSCC_FDMA_INTR_FRM
frm = ocelot_fdma_readl(ocelot, MSCC_FDMA_INTR_FRM);
ocelot_fdma_writel(ocelot, MSCC_FDMA_INTR_FRM, frm & ident);
ocelot_fdma_writel(ocelot, MSCC_FDMA_INTR_FRM, 0xffffffff);