poweprc/85xx: add QMan frequency info and fdt fixup.

Starting from QMan3.0, the QMan clock cycle needs be exposed so that the kernel
driver can use it to calculate the shaper prescaler and rate.

Signed-off-by: Haiying Wang <Haiying.Wang@freescale.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>
diff --git a/arch/powerpc/cpu/mpc85xx/fdt.c b/arch/powerpc/cpu/mpc85xx/fdt.c
index a364ef2..ab09330 100644
--- a/arch/powerpc/cpu/mpc85xx/fdt.c
+++ b/arch/powerpc/cpu/mpc85xx/fdt.c
@@ -411,6 +411,11 @@
 #endif
 #endif
 
+#ifdef CONFIG_SYS_DPAA_QBMAN
+	do_fixup_by_compat_u32(blob, "fsl,qman",
+			"clock-frequency", sysinfo.freqQMAN, 1);
+#endif
+
 #ifdef CONFIG_SYS_DPAA_PME
 	do_fixup_by_compat_u32(blob, "fsl,pme",
 		"clock-frequency", sysinfo.freqPME, 1);