m68k: Add generic board support for MCF547X/8X and MCF5445X

This patch adds generic board support for MCF547X/8X and MCF5445X.
It is based on the patch about common generic board support for
M68K architecture sent by Angelo.

Signed-off-by: Alison Wang <alison.wang@freescale.com>
diff --git a/include/asm-generic/u-boot.h b/include/asm-generic/u-boot.h
index ff697aa..c918049 100644
--- a/include/asm-generic/u-boot.h
+++ b/include/asm-generic/u-boot.h
@@ -66,10 +66,15 @@
 #if defined(CONFIG_MPC512X)
 	unsigned long	bi_ipsfreq;	/* IPS Bus Freq, in MHz */
 #endif /* CONFIG_MPC512X */
-#if defined(CONFIG_MPC5xxx)
+#if defined(CONFIG_MPC5xxx) || defined(CONFIG_M68K)
 	unsigned long	bi_ipbfreq;	/* IPB Bus Freq, in MHz */
 	unsigned long	bi_pcifreq;	/* PCI Bus Freq, in MHz */
 #endif
+#if defined(CONFIG_EXTRA_CLOCK)
+	unsigned long bi_inpfreq;	/* input Freq in MHz */
+	unsigned long bi_vcofreq;	/* vco Freq in MHz */
+	unsigned long bi_flbfreq;	/* Flexbus Freq in MHz */
+#endif
 #if defined(CONFIG_405)   || \
 		defined(CONFIG_405GP) || \
 		defined(CONFIG_405EP) || \