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authorMiodrag Dinic <miodrag.dinic@imgtec.com>2017-08-29 16:53:20 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-08-31 19:58:45 +0300
commit3840ed9548f778717aaab5eab744da798c3ea055 (patch)
tree322458246a1fa3351a5d4331e1102bccbffe5aad /drivers/tty/Kconfig
parent7157d2be23da9f8860c69e2b79184a4e02701dad (diff)
downloadlinux-3840ed9548f778717aaab5eab744da798c3ea055.tar.xz
tty: goldfish: Implement support for kernel 'earlycon' parameter
Add early console functionality to the Goldfish tty driver. When 'earlycon' kernel command line parameter is used with no options, the early console is determined by the 'stdout-path' property in device tree's 'chosen' node. This is illustrated in the following device tree source example: Device tree example: chosen { stdout-path = "/goldfish_tty@1f004000"; }; goldfish_tty@1f004000 { interrupts = <0xc>; reg = <0x1f004000 0x0 0x1000>; compatible = "google,goldfish-tty"; }; Signed-off-by: Miodrag Dinic <miodrag.dinic@imgtec.com> Signed-off-by: Goran Ferenc <goran.ferenc@imgtec.com> Signed-off-by: Aleksandar Markovic <aleksandar.markovic@imgtec.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/Kconfig')
-rw-r--r--drivers/tty/Kconfig3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/tty/Kconfig b/drivers/tty/Kconfig
index 95103054c0e4..873e0ba89737 100644
--- a/drivers/tty/Kconfig
+++ b/drivers/tty/Kconfig
@@ -392,6 +392,9 @@ config PPC_EARLY_DEBUG_EHV_BC_HANDLE
config GOLDFISH_TTY
tristate "Goldfish TTY Driver"
depends on GOLDFISH
+ select SERIAL_CORE
+ select SERIAL_CORE_CONSOLE
+ select SERIAL_EARLYCON
help
Console and system TTY driver for the Goldfish virtual platform.