On Tue, Feb 02, 2016 at 11:39:53AM +0000, Vladimir Murzin wrote: > This driver adds support to the UART controller found on ARM MPS2 > platform. > > Signed-off-by: Vladimir Murzin <vladimir.mur...@arm.com> > --- > drivers/tty/serial/Kconfig | 12 + > drivers/tty/serial/Makefile | 1 + > drivers/tty/serial/mps2-uart.c | 584 > ++++++++++++++++++++++++++++++++++++++ > include/uapi/linux/serial_core.h | 3 + > 4 files changed, 600 insertions(+) > create mode 100644 drivers/tty/serial/mps2-uart.c > > diff --git a/drivers/tty/serial/Kconfig b/drivers/tty/serial/Kconfig > index 39721ec..3a248be 100644 > --- a/drivers/tty/serial/Kconfig > +++ b/drivers/tty/serial/Kconfig > @@ -1450,6 +1450,18 @@ config SERIAL_EFM32_UART > This driver support the USART and UART ports on > Energy Micro's efm32 SoCs. > > +config SERIAL_MPS2_UART_CONSOLE > + bool "MPS2 UART console support" > + depends on SERIAL_MPS2_UART > + select SERIAL_CORE_CONSOLE > + > +config SERIAL_MPS2_UART > + bool "MPS2 UART port" > + depends on ARM || COMPILE_TEST > + select SERIAL_CORE > + help > + This driver support the UART ports on ARM MPS2. > + > config SERIAL_EFM32_UART_CONSOLE > bool "EFM32 UART/USART console support" > depends on SERIAL_EFM32_UART=y > diff --git a/drivers/tty/serial/Makefile b/drivers/tty/serial/Makefile > index b391c9b..1062503 100644 > --- a/drivers/tty/serial/Makefile > +++ b/drivers/tty/serial/Makefile > @@ -91,6 +91,7 @@ obj-$(CONFIG_SERIAL_CONEXANT_DIGICOLOR) += > digicolor-usart.o > obj-$(CONFIG_SERIAL_MEN_Z135) += men_z135_uart.o > obj-$(CONFIG_SERIAL_SPRD) += sprd_serial.o > obj-$(CONFIG_SERIAL_STM32) += stm32-usart.o > +obj-$(CONFIG_SERIAL_MPS2_UART) += mps2-uart.o > > # GPIOLIB helpers for modem control lines > obj-$(CONFIG_SERIAL_MCTRL_GPIO) += serial_mctrl_gpio.o > diff --git a/drivers/tty/serial/mps2-uart.c b/drivers/tty/serial/mps2-uart.c > new file mode 100644 > index 0000000..4d113ec > --- /dev/null > +++ b/drivers/tty/serial/mps2-uart.c > @@ -0,0 +1,584 @@ > +/* > + * Copyright (C) 2015 ARM Limited > + * > + * Author: Vladimir Murzin <vladimir.mur...@arm.com> > + * > + * This program is free software; you can redistribute it and/or modify > + * it under the terms of the GNU General Public License version 2 as > + * published by the Free Software Foundation. > + * > + * TODO: support for SysRq > + */ > + > +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt > + > +#include <linux/bitops.h> > +#include <linux/clk.h> > +#include <linux/console.h> > +#include <linux/io.h> > +#include <linux/kernel.h> > +#include <linux/module.h> > +#include <linux/of_device.h> > +#include <linux/of.h> > +#include <linux/platform_device.h> > +#include <linux/serial_core.h> > +#include <linux/tty_flip.h> > +#include <linux/types.h> > + > +#define SERIAL_NAME "ttyS"
You can't be "ttyS", there's already a serial port named that, please use a unique name and a new major/minor number (dynamic ideally). thanks, greg k-h