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Commit c9e2e946 authored by Jingchang Lu's avatar Jingchang Lu Committed by Greg Kroah-Hartman
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tty: serial: add Freescale lpuart driver support 



Add Freescale lpuart driver support. The lpuart device
can be found on Vybrid VF610 and Layerscape LS-1 SoCs.

Signed-off-by: default avatarJingchang Lu <b35083@freescale.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 1ba7055a

Documentation/devicetree/bindings/tty/serial/fsl-lpuart.txt

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* Freescale low power universal asynchronous receiver/transmitter (lpuart)



Required properties:

- compatible : Should be "fsl,<soc>-lpuart"

- reg : Address and length of the register set for the device

- interrupts : Should contain uart interrupt



Example:



uart0: serial@40027000 {

	       compatible = "fsl,vf610-lpuart";

	       reg = <0x40027000 0x1000>;

	       interrupts = <0 61 0x00>;

       };

drivers/tty/serial/Kconfig

+14 −0
Original line number Original line Diff line number Diff line
@@ -1483,6 +1483,20 @@ config SERIAL_RP2_NR_UARTS 
	  If multiple cards are present, the default limit of 32 ports may

	  If multiple cards are present, the default limit of 32 ports may

	  need to be increased.

	  need to be increased.





config SERIAL_FSL_LPUART

	tristate "Freescale lpuart serial port support"

	select SERIAL_CORE

	help

	  Support for the on-chip lpuart on some Freescale SOCs.



config SERIAL_FSL_LPUART_CONSOLE

	bool "Console on Freescale lpuart serial port"

	depends on SERIAL_FSL_LPUART=y

	select SERIAL_CORE_CONSOLE

	help

	  If you have enabled the lpuart serial port on the Freescale SoCs,

	  you can make it the console by answering Y to this option.



endmenu

endmenu





endif # TTY
 
endif # TTY

drivers/tty/serial/Makefile

+1 −0
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@@ -85,3 +85,4 @@ obj-$(CONFIG_SERIAL_AR933X) += ar933x_uart.o 
obj-$(CONFIG_SERIAL_EFM32_UART) += efm32-uart.o

obj-$(CONFIG_SERIAL_EFM32_UART) += efm32-uart.o

obj-$(CONFIG_SERIAL_ARC)	+= arc_uart.o

obj-$(CONFIG_SERIAL_ARC)	+= arc_uart.o

obj-$(CONFIG_SERIAL_RP2)	+= rp2.o

obj-$(CONFIG_SERIAL_RP2)	+= rp2.o

obj-$(CONFIG_SERIAL_FSL_LPUART)	+= fsl_lpuart.o

drivers/tty/serial/fsl_lpuart.c

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File added.

Preview size limit exceeded, changes collapsed.

include/uapi/linux/serial_core.h

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@@ -226,4 +226,7 @@ 
/* Rocketport EXPRESS/INFINITY */

/* Rocketport EXPRESS/INFINITY */

#define PORT_RP2	102

#define PORT_RP2	102





/* Freescale lpuart */

#define PORT_LPUART	103



#endif /* _UAPILINUX_SERIAL_CORE_H */
 
#endif /* _UAPILINUX_SERIAL_CORE_H */