ppc4xx/POST: Add board specific UART POST test to lwmon5

Add CONFIG_POST_UART to implement a board specific UART POST test.
This is done since lwmon5 needs to set POST_ALWAYS to run this
test on each reboot. And we don't want to change the default
behavious of this this.

Signed-off-by: Stefan Roese <sr@denx.de>

include/configs/lwmon5.h

@@ -193,6 +193,17 @@
 #define CONFIG_SYS_POST_UART_TABLE	{ CONFIG_SYS_NS16550_COM1, \
 			CONFIG_SYS_NS16550_COM2 }
 
+#define CONFIG_POST_UART  {				\
+	"UART test",					\
+	"uart",						\
+	"This test verifies the UART operation.",	\
+	POST_RAM | POST_SLOWTEST | POST_ALWAYS | POST_MANUAL,	\
+	&uart_post_test,				\
+	NULL,						\
+	NULL,						\
+	CONFIG_SYS_POST_UART				\
+	}
+
 #define CONFIG_POST_WATCHDOG  {				\
 	"Watchdog timer test",				\
 	"watchdog",					\

post/tests.c

@@ -165,6 +165,9 @@ struct post_test post_list[] =
     },
 #endif
 #if CONFIG_POST & CONFIG_SYS_POST_UART
+#if defined(CONFIG_POST_UART)
+	CONFIG_POST_UART,
+#else
     {
 	"UART test",
 	"uart",
@@ -175,6 +178,7 @@ struct post_test post_list[] =
 	NULL,
 	CONFIG_SYS_POST_UART
     },
+#endif /* CONFIG_POST_UART */
 #endif
 #if CONFIG_POST & CONFIG_SYS_POST_ETHER
     {