[serial/ppc] Add support for MPC52xx PSCs.

Can be used as serial port and console. Compliant with the OCP driver model.
Signed-off-by: Sylvain Munaut <tnt@246tNt.com>

drivers/serial/Kconfig

@@ -687,4 +687,31 @@ config SERIAL_SGI_L1_CONSOLE
 		controller serial port as your console (you want this!),
 		say Y.  Otherwise, say N.
 
+config SERIAL_MPC52xx
+	tristate "Freescale MPC52xx family PSC serial support"
+	depends on PPC_MPC52xx
+	select SERIAL_CORE
+	help
+	  This drivers support the MPC52xx PSC serial ports. If you would
+	  like to use them, you must answer Y or M to this option. Not that
+	  for use as console, it must be included in kernel and not as a
+	  module.
+
+config SERIAL_MPC52xx_CONSOLE
+	bool "Console on a Freescale MPC52xx family PSC serial port"
+	depends on SERIAL_MPC52xx=y
+	select SERIAL_CORE_CONSOLE
+	help
+	  Select this options if you'd like to use one of the PSC serial port
+	  of the Freescale MPC52xx family as a console.
+
+config SERIAL_MPC52xx_CONSOLE_BAUD
+	int "Freescale MPC52xx family PSC serial port baud"
+	depends on SERIAL_MPC52xx_CONSOLE=y
+	default "9600"
+	help
+	  Select the MPC52xx console baud rate.
+	  This value is only used if the bootloader doesn't pass in the
+	  console baudrate
+
 endmenu

drivers/serial/Makefile

@@ -40,3 +40,4 @@ 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_MPC52xx) += mpc52xx_uart.o

include/linux/serial_core.h

@@ -86,6 +86,9 @@
 /* PPC CPM type number */
 #define PORT_CPM        58
 
+/* MPC52xx type numbers */
+#define PORT_MPC52xx	59
+
 #ifdef __KERNEL__
 
 #include <linux/config.h>