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dm: serial: Allow driver-model serial to be disabled for TPL

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Add separate enable/disable controls for driver-model serial. While this
is generally enabled in SPL it may not be in TPL, since serial output can
be obtained with the debug UART with minimal code size.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass 2017-04-02 09:50:32 -06:00 committed by Tom Rini
parent 5a6f06f696
commit 891f7ae633
2 changed files with 21 additions and 1 deletions
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20
drivers/serial/Kconfig
View File

@ -53,6 +53,26 @@ config DM_SERIAL
implements serial_putc() etc. The uclass interface is implements serial_putc() etc. The uclass interface is
defined in include/serial.h. defined in include/serial.h.
config SPL_DM_SERIAL
bool "Enable Driver Model for serial drivers"
depends on DM_SERIAL
default y if SPL && DM_SERIAL
help
Enable driver model for serial in SPL. This replaces
drivers/serial/serial.c with the serial uclass, which
implements serial_putc() etc. The uclass interface is
defined in include/serial.h.
config TPL_DM_SERIAL
bool "Enable Driver Model for serial drivers"
depends on DM_SERIAL
default y if TPL && DM_SERIAL
help
Enable driver model for serial in TPL. This replaces
drivers/serial/serial.c with the serial uclass, which
implements serial_putc() etc. The uclass interface is
defined in include/serial.h.
config DEBUG_UART config DEBUG_UART
bool "Enable an early debug UART for debugging" bool "Enable an early debug UART for debugging"
help help

2
drivers/serial/Makefile
View File

@ -6,7 +6,7 @@
# #
ifdef CONFIG_DM_SERIAL ifdef CONFIG_DM_SERIAL
obj-y += serial-uclass.o obj-$(CONFIG_$(SPL_TPL_)DM_SERIAL) += serial-uclass.o
obj-$(CONFIG_PL01X_SERIAL) += serial_pl01x.o obj-$(CONFIG_PL01X_SERIAL) += serial_pl01x.o
else else
obj-y += serial.o obj-y += serial.o