mpc512x: add multi serial PSC support
Extend mpc512x serial driver to support multiple PSC ports.
Subsequent patches for PDM360NG board support make use of this
functionality by defining CONFIG_SERIAL_MULTI in the board config
file. Additionally the used PSC devices are specified by defining
e.g. CONFIG_SYS_PSC1, CONFIG_SYS_PSC4 and CONFIG_SYS_PSC6.
Support for PSC devices other than 1, 3, 4 and 6 is not added
by this patch because these aren't used currently. In the future
it can be easily added using DECLARE_PSC_SERIAL_FUNCTIONS(N) and
INIT_PSC_SERIAL_STRUCTURE(N) macros in cpu/mpc512x/serial.c.
Additionally you have to add code for registering added
devices in serial_initialize() in common/serial.c.
Signed-off-by: Anatolij Gustschin <agust@denx.de>
diff --git a/include/serial.h b/include/serial.h
index fbf101b..3f3edbc 100644
--- a/include/serial.h
+++ b/include/serial.h
@@ -38,6 +38,13 @@
#endif
+#if defined(CONFIG_MPC512X)
+extern struct serial_device serial1_device;
+extern struct serial_device serial3_device;
+extern struct serial_device serial4_device;
+extern struct serial_device serial6_device;
+#endif
+
#if defined(CONFIG_S3C2410)
extern struct serial_device s3c24xx_serial0_device;
extern struct serial_device s3c24xx_serial1_device;
