From 3840ed9548f778717aaab5eab744da798c3ea055 Mon Sep 17 00:00:00 2001 From: Miodrag Dinic Date: Tue, 29 Aug 2017 15:53:20 +0200 Subject: 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 Signed-off-by: Goran Ferenc Signed-off-by: Aleksandar Markovic Signed-off-by: Greg Kroah-Hartman --- drivers/tty/Kconfig | 3 +++ 1 file changed, 3 insertions(+) (limited to 'drivers/tty/Kconfig') 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. -- cgit v1.2.1