Revert "ppc4xx: Fix DDR2 auto calibration on Kilauea 600MHz (200MHz PLB)"

This reverts commit 3eec160a3a405b29ce9c06920f6427b9047dd8a8.

Signed-off-by: Stefan Roese <sr@denx.de>
diff --git a/cpu/ppc4xx/4xx_ibm_ddr2_autocalib.c b/cpu/ppc4xx/4xx_ibm_ddr2_autocalib.c
index 3ba8176..83b9883 100644
--- a/cpu/ppc4xx/4xx_ibm_ddr2_autocalib.c
+++ b/cpu/ppc4xx/4xx_ibm_ddr2_autocalib.c
@@ -79,6 +79,11 @@
 	u32 flags;
 };
 
+struct sdram_timing {
+	u32 wrdtr;
+	u32 clktr;
+};
+
 struct sdram_timing_clks {
 	u32 wrdtr;
 	u32 clktr;