diff options
Diffstat (limited to 'drivers/serial/Kconfig')
| -rw-r--r-- | drivers/serial/Kconfig | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/serial/Kconfig b/drivers/serial/Kconfig index e67ea52338..887cd687c0 100644 --- a/drivers/serial/Kconfig +++ b/drivers/serial/Kconfig @@ -447,6 +447,18 @@ config DEBUG_UART_SKIP_INIT Select this if the UART you want to use for debug output is already initialized by the time U-Boot starts its execution. +config DEBUG_UART_NS16550_CHECK_ENABLED + bool "Check if UART is enabled on output" + depends on DEBUG_UART + depends on DEBUG_UART_NS16550 + help + Select this if puts()/putc() might be called before the debug UART + has been initialized. If this is disabled, putc() might sit in a + tight loop if it is called before debug_uart_init() has been called. + + Note that this does not work for every ns16550-compatible UART and + so has to be enabled carefully or you might notice lost characters. + config ALTERA_JTAG_UART bool "Altera JTAG UART support" depends on DM_SERIAL |