[PATCH] [MPC52xx] Use IPB bus frequency for SOC peripherals

The soc node of the mpc52xx needs to be loaded with the IPB bus frequency,
not the XLB frequency.

This patch depends on the previous patches for MPC52xx device tree support

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Sylvain Munaut <tnt@246tNt.com>

cpu/mpc5xxx/cpu.c

@@ -112,21 +112,20 @@ void
 ft_cpu_setup(void *blob, bd_t *bd)
 {
 	u32 *p;
-	ulong clock;
 	int len;
 
-	clock = bd->bi_busfreq;
+	/* Core XLB bus frequency */
 	p = ft_get_prop(blob, "/cpus/" OF_CPU "/bus-frequency", &len);
 	if (p != NULL)
-		*p = cpu_to_be32(clock);
+		*p = cpu_to_be32(bd->bi_busfreq);
 
+	/* SOC peripherals use the IPB bus frequency */
 	p = ft_get_prop(blob, "/" OF_SOC "/bus-frequency", &len);
 	if (p != NULL)
-		*p = cpu_to_be32(clock);
+		*p = cpu_to_be32(bd->bi_ipbfreq);
 
 	p = ft_get_prop(blob, "/" OF_SOC "/ethernet@3000/mac-address", &len);
 	if (p != NULL)
 		memcpy(p, bd->bi_enetaddr, 6);
-
 }
 #endif