summaryrefslogtreecommitdiff
path: root/drivers/tty/Kconfig
diff options
context:
space:
mode:
authorJames Hogan <james.hogan@imgtec.com>2015-01-29 14:14:13 +0300
committerRalf Baechle <ralf@linux-mips.org>2015-03-31 13:04:12 +0300
commite934945db7625716f9cc469e31fc5da8666c8024 (patch)
treeec3381a503bb92b2d40ee656e8b9b4b222add244 /drivers/tty/Kconfig
parent4cebec609aea6dff23e67a42b6516d852fa87d07 (diff)
downloadlinux-e934945db7625716f9cc469e31fc5da8666c8024.tar.xz
MIPS, ttyFDC: Add early FDC console support
Add support for early console of MIPS Fast Debug Channel (FDC) on channel 1 with a call very early from the MIPS setup_arch(). Signed-off-by: James Hogan <james.hogan@imgtec.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Jiri Slaby <jslaby@suse.cz> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/9145/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'drivers/tty/Kconfig')
-rw-r--r--drivers/tty/Kconfig13
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/tty/Kconfig b/drivers/tty/Kconfig
index 39469ca4231c..e0c18e5b7057 100644
--- a/drivers/tty/Kconfig
+++ b/drivers/tty/Kconfig
@@ -437,4 +437,17 @@ config MIPS_EJTAG_FDC_TTY
If unsure, say N.
+config MIPS_EJTAG_FDC_EARLYCON
+ bool "Early FDC console"
+ depends on MIPS_EJTAG_FDC_TTY
+ help
+ This registers a console on FDC channel 1 very early during boot (from
+ MIPS arch code). This is useful for bring-up and debugging early boot
+ issues.
+
+ Do not enable unless there is a debug probe attached to drain the FDC
+ TX FIFO.
+
+ If unsure, say N.
+
endif # TTY