> Because the flags are manipulated to give the illusion of a one byte > FIFO, as stated in the TRM. Yes. It is the problem that rx interrupt is pended with this status as I mentioned. > And we don't set the mask register to 1 until later. In the last part of startup, set to 1. Interrupt can be occurred just after it. uap->im = UART011_RTIM; if (!pl011_dma_rx_running(uap)) uap->im |= UART011_RXIM; writew(uap->im, uap->port.membase + UART011_IMSC); > But we want to do the transmit interrupt provocation with the FIFO disabled. I know. It's test only. -- To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
