tty: serial: 8250_mtk: Add earlycon

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Add 8250 MTK UART driver to support earlycon device tree.
Earlycon take effect by
  add "earlycon" in kernel boot argument
  add "linux,sdtout-path" property in device tree file

Signed-off-by: Eddie Huang <eddie.huang@mediatek.com>
Tested-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Eddie Huang 2015-04-28 21:40:33 +08:00 • committed by Greg Kroah-Hartman

parent 1c5841e832

commit 2c40b57dc8

1 changed files with 13 additions and 0 deletions

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drivers/tty/serial/8250/8250_mtk.c

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