serial: ns16550: Add RX interrupt buffer support

[people/ms/u-boot.git] / drivers / serial / Kconfig

diff --git a/drivers/serial/Kconfig b/drivers/serial/Kconfig
index 97cef7edbda69a08856614270d7d323493e083fc..0748a9254504c510d9ca0e7225f713d3427543ca 100644 (file)
--- a/drivers/serial/Kconfig
+++ b/drivers/serial/Kconfig
@@ -64,6 +64,16 @@ config DM_SERIAL
          implements serial_putc() etc. The uclass interface is
          defined in include/serial.h.
 
+config SERIAL_IRQ_BUFFER
+       bool "Enable RX interrupt buffer for serial input"
+       depends on DM_SERIAL
+       default n
+       help
+         Enable RX interrupt buffer support for the serial driver.
+         This enables pasting longer strings, even when the RX FIFO
+         of the UART is not big enough (e.g. 16 bytes on the normal
+         NS16550).
+
 config SPL_DM_SERIAL
        bool "Enable Driver Model for serial drivers in SPL"
        depends on DM_SERIAL