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serial: Add a SERIAL config

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At present we have SPL_SERIAL and TPL_SERIAL but not piain SERIAL. This
works because there is a special build rule in Makefile that always
includes the drivers/serial directory.

It is better to have all driver directories included by drivers/Makefile
and there is already a rule in there for this purpose. It just needs a
Kconfig for U-Boot proper, so add one.

It is always enabled, for now, since that mimics the current behaviour.
It should be possible to drop the strange 'SERIAL_PRESENT' option at some
point and use SERIAL instead.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass 2021-08-08 12:20:13 -06:00 committed by Tom Rini
parent 2a73606668
commit 52510486c5
2 changed files with 13 additions and 3 deletions
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1
Makefile
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@ -829,7 +829,6 @@ libs-$(CONFIG_FMAN_ENET) += drivers/net/fm/
libs-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/ libs-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/
libs-$(CONFIG_SYS_FSL_MMDC) += drivers/ddr/fsl/ libs-$(CONFIG_SYS_FSL_MMDC) += drivers/ddr/fsl/
libs-$(CONFIG_$(SPL_)ALTERA_SDRAM) += drivers/ddr/altera/ libs-$(CONFIG_$(SPL_)ALTERA_SDRAM) += drivers/ddr/altera/
libs-y += drivers/serial/
libs-y += drivers/usb/cdns3/ libs-y += drivers/usb/cdns3/
libs-y += drivers/usb/dwc3/ libs-y += drivers/usb/dwc3/
libs-y += drivers/usb/common/ libs-y += drivers/usb/common/

15
drivers/serial/Kconfig
View file

@ -2,7 +2,18 @@
# Serial device configuration # Serial device configuration
# #
menu "Serial drivers" menuconfig SERIAL
bool "Serial"
default y
help
Enable support for serial drivers. This allows use of a serial UART
for displaying messages while U-Boot is running. It also brings in
printf() and panic() functions. This should normally be enabled
unless there are space reasons not to. If you just need to disable
the console you can adjust the stdout environment variable or use
SILENT_CONSOLE.
if SERIAL
config BAUDRATE config BAUDRATE
int "Default baudrate" int "Default baudrate"
@ -937,4 +948,4 @@ config SYS_SDMR
depends on MPC8XX_CONS depends on MPC8XX_CONS
default 0 default 0
endmenu endif