[ARM PATCH] 1956/2: Re: Motorola i.MX serial driver

Patch from Sascha Hauer

Here is an updated version of the patch:

- updated the patch according to Russell's comments
- added proper sysrq handling
- update rx counter

Sascha Hauer

drivers/serial/Kconfig

@@ -386,6 +386,29 @@ config SERIAL_SA1100_CONSOLE
 	  your boot loader (lilo or loadlin) about how to pass options to the
 	  kernel at boot time.)
 
+config SERIAL_IMX
+	bool "IMX serial port support"
+	depends on ARM && ARCH_IMX
+	select SERIAL_CORE
+	help
+	  If you have a machine based on a Motorola IMX CPU you
+	  can enable its onboard serial port by enabling this option.
+
+config SERIAL_IMX_CONSOLE
+	bool "Console on IMX serial port"
+	depends on SERIAL_IMX
+	select SERIAL_CORE_CONSOLE
+	help
+	  If you have enabled the serial port on the Motorola IMX
+	  CPU you can make it the console by answering Y to this option.
+
+	  Even if you say Y here, the currently visible virtual console
+	  (/dev/tty0) will still be used as the system console by default, but
+	  you can alter that using a kernel command line option such as
+	  "console=ttySA0". (Try "man bootparam" or see the documentation of
+	  your boot loader (lilo or loadlin) about how to pass options to the
+	  kernel at boot time.)
+
 config SERIAL_SUNCORE
 	bool
 	depends on SPARC32 || SPARC64

drivers/serial/Makefile

@@ -41,5 +41,6 @@ obj-$(CONFIG_SERIAL_SH_SCI) += sh-sci.o
 obj-$(CONFIG_SERIAL_BAST_SIO) += bast_sio.o
 obj-$(CONFIG_SERIAL_SGI_L1_CONSOLE) += sn_console.o
 obj-$(CONFIG_SERIAL_CPM) += cpm_uart/
+obj-$(CONFIG_SERIAL_IMX) += imx.o
 obj-$(CONFIG_SERIAL_MPC52xx) += mpc52xx_uart.o
 obj-$(CONFIG_SERIAL_M32R_SIO) += m32r_sio.o