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| author | Philip Prindeville <philipp@redfish-solutions.com> | 2017-02-06 20:33:36 -0700 |
|---|---|---|
| committer | Felix Fietkau <nbd@nbd.name> | 2017-04-03 08:51:02 +0200 |
| commit | 7fe5963be023fd59a11652ecfb065d3405a91c48 (patch) | |
| tree | 82dd718d3d55b5c154525f2a6a39b839f1190036 | |
| parent | dfacdc6a99757fcf7804b38784fc24f9fad30650 (diff) | |
| download | upstream-7fe5963be023fd59a11652ecfb065d3405a91c48.tar.gz upstream-7fe5963be023fd59a11652ecfb065d3405a91c48.tar.bz2 upstream-7fe5963be023fd59a11652ecfb065d3405a91c48.zip | |
build: allow specifying flow-control to grub on serial console
On the more sophisticated (i.e. deeper FIFO) serial controllers,
flow-control might be needed to avoid dropping output.
Signed-off-by: Philip Prindeville <philipp@redfish-solutions.com>
| -rw-r--r-- | config/Config-images.in | 5 | ||||
| -rw-r--r-- | target/linux/x86/image/Makefile | 4 |
2 files changed, 7 insertions, 2 deletions
diff --git a/config/Config-images.in b/config/Config-images.in index f59a33613d..95752f737a 100644 --- a/config/Config-images.in +++ b/config/Config-images.in @@ -203,6 +203,11 @@ menu "Target Images" default 38400 if TARGET_x86_generic default 115200 + config GRUB_FLOWCONTROL + bool "Use RTE/CTS on serial console" + depends on GRUB_SERIAL != "" + default n + config GRUB_BOOTOPTS string "Extra kernel boot options" depends on GRUB_IMAGES diff --git a/target/linux/x86/image/Makefile b/target/linux/x86/image/Makefile index f34788d67b..ca5d0123c7 100644 --- a/target/linux/x86/image/Makefile +++ b/target/linux/x86/image/Makefile @@ -32,8 +32,8 @@ endif GRUB_SERIAL:=$(call qstrip,$(CONFIG_GRUB_SERIAL)) ifneq ($(GRUB_SERIAL),) - GRUB_CONSOLE_CMDLINE += console=$(GRUB_SERIAL),$(CONFIG_GRUB_BAUDRATE)n8 - GRUB_SERIAL_CONFIG := serial --unit=0 --speed=$(CONFIG_GRUB_BAUDRATE) --word=8 --parity=no --stop=1 --rtscts=off + GRUB_CONSOLE_CMDLINE += console=$(GRUB_SERIAL),$(CONFIG_GRUB_BAUDRATE)n8$(if $(CONFIG_GRUB_FLOWCONTROL),r,) + GRUB_SERIAL_CONFIG := serial --unit=0 --speed=$(CONFIG_GRUB_BAUDRATE) --word=8 --parity=no --stop=1 --rtscts=$(if $(CONFIG_GRUB_FLOWCONTROL),on,off) GRUB_TERMINALS += serial endif |