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authorJulien Viard de Galbert <jviarddegalbert@online.net>2018-02-20 11:45:48 +0100
committerMartin Roth <martinroth@google.com>2018-02-21 16:09:06 +0000
commit235daa4bf6b6467b5df675dcfe5041b7f62eeae3 (patch)
tree074bc4b58e2da4c7f6fb43c5e7613b08861d5d33 /src/console
parentfa650f5e8c7cd81138b60d09d4a41b5454f03cc1 (diff)
downloadcoreboot-235daa4bf6b6467b5df675dcfe5041b7f62eeae3.tar.xz
driver/uart: Introduce a way for mainboard to override the baudrate
The rationale is to allow the mainboard to override the default baudrate for instance by sampling GPIOs at boot. A new configuration option is available for mainboards to select this behaviour. It will then have to define the function get_uart_baudrate to return the computed baudrate. Change-Id: I970ee788bf90b9e1a8c6ccdc5eee8029d9af0ecc Signed-off-by: Julien Viard de Galbert <jviarddegalbert@online.net> Reviewed-on: https://review.coreboot.org/23713 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Nico Huber <nico.h@gmx.de>
Diffstat (limited to 'src/console')
-rw-r--r--src/console/Kconfig10
1 files changed, 10 insertions, 0 deletions
diff --git a/src/console/Kconfig b/src/console/Kconfig
index c0e4a8c8b0..0421f6ba4c 100644
--- a/src/console/Kconfig
+++ b/src/console/Kconfig
@@ -76,6 +76,14 @@ depends on UART_FOR_CONSOLE = 2
comment "Serial port base address = 0x2e8"
depends on UART_FOR_CONSOLE = 3
+config UART_OVERRIDE_BAUDRATE
+ boolean
+ help
+ Set to "y" when the platform overrides the baudrate by providing
+ a get_uart_baudrate routine.
+
+if !UART_OVERRIDE_BAUDRATE
+
choice
prompt "Baud rate"
default CONSOLE_SERIAL_115200
@@ -129,6 +137,8 @@ config TTYS0_BAUD
help
Map the Baud rates to an integer.
+endif
+
# TODO: Allow user-friendly selection of settings other than 8n1.
config TTYS0_LCS
int