CV1800B_FIFO_RESET
val = readl(i2s->base + CV1800B_FIFO_RESET);
writel(val, i2s->base + CV1800B_FIFO_RESET);
val = readl(i2s->base + CV1800B_FIFO_RESET);
writel(val, i2s->base + CV1800B_FIFO_RESET);
val = readl(i2s->base + CV1800B_FIFO_RESET);
writel(val, i2s->base + CV1800B_FIFO_RESET);