during serial port initialization (default y). Set this to n on
boards which have no debug serial port whatsoever.
+config SERIAL_PRESENT
+ bool "Provide a serial driver"
+ depends on DM_SERIAL
+ default y
+ help
+ In very space-constrained devices even the full UART driver is too
+ large. In this case the debug UART can still be used in some cases.
+ This option enables the full UART in U-Boot, so if is it disabled,
+ the full UART driver will be omitted, thus saving space.
+
+config SPL_SERIAL_PRESENT
+ bool "Provide a serial driver in SPL"
+ depends on DM_SERIAL
+ default y
+ help
+ In very space-constrained devices even the full UART driver is too
+ large. In this case the debug UART can still be used in some cases.
+ This option enables the full UART in SPL, so if is it disabled,
+ the full UART driver will be omitted, thus saving space.
+
config DM_SERIAL
bool "Enable Driver Model for serial drivers"
depends on DM
will need to provide parameters to make this work. The driver will
be available until the real driver model serial is running.
+config DEBUG_UART_PL010
+ bool "pl010"
+ help
+ Select this to enable a debug UART using the pl01x driver with the
+ PL010 UART type. You will need to provide parameters to make this
+ work. The driver will be available until the real driver model
+ serial is running.
+
+config DEBUG_UART_PL011
+ bool "pl011"
+ help
+ Select this to enable a debug UART using the pl01x driver with the
+ PL011 UART type. You will need to provide parameters to make this
+ work. The driver will be available until the real driver model
+ serial is running.
+
endchoice
config DEBUG_UART_BASE
debug_uart_init()). This can be useful just as a check that
everything is working.
+config DEBUG_UART_SKIP_INIT
+ bool "Skip UART initialization"
+ help
+ Select this if the UART you want to use for debug output is already
+ initialized by the time U-Boot starts its execution.
+
config ALTERA_JTAG_UART
bool "Altera JTAG UART support"
depends on DM_SERIAL
Select this to enable an UART for Altera devices. Please find
details on the "Embedded Peripherals IP User Guide" of Altera.
+config FSL_LPUART
+ bool "Freescale LPUART support"
+ help
+ Select this to enable a Low Power UART for Freescale VF610 and
+ QorIQ Layerscape devices.
+
config SYS_NS16550
bool "NS16550 UART or compatible"
help