This patch add earlycon support to MT8173 SoC platform. To use earlycon, need 1. Add earlycon in boot parameters 2. Add "linux,sdtout-path" property in device tree file This patch based on 4.1-rc1. Change in v3: Remove noinit options, not necessary, because 8250_early.c will not init hardware if not provide baudrate. Change v2: 1. Add noinit options. 2. Remove duplicate code in 8250_mtk.c, reuse the 8250_early.c existed function. Eddie Huang (3): tty: serial: 8250: export early_serial8250_setup function tty: serial: 8250_mtk: Add earlycon arm64: dts: Add mediatek MT8173 earlycon support arch/arm64/boot/dts/mediatek/mt8173-evb.dts | 4 +++- drivers/tty/serial/8250/8250_early.c | 2 +- drivers/tty/serial/8250/8250_mtk.c | 13 +++++++++++++ include/linux/serial_8250.h | 2 ++ 4 files changed, 19 insertions(+), 2 deletions(-) -- 1.8.1.1.dirty -- To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html