mpc83xx: Fix the bug of 266MHz data rate DDR

The DDR doesn't work on the 266MHz data rate,
the patch fix the bug.

Signed-off-by: Dave Liu <daveliu@freescale.com>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>

diff --git a/cpu/mpc83xx/spd_sdram.c b/cpu/mpc83xx/spd_sdram.c
index 29dd47078ec2a62563d4e6436429ff60927a29d9..0acca4771783dc30f6a0953968732828f4523915 100644 (file)
--- a/cpu/mpc83xx/spd_sdram.c
+++ b/cpu/mpc83xx/spd_sdram.c
@@ -574,9 +574,9 @@ long int spd_sdram()
         */
        cpo = 0;
        if (spd.mem_type == SPD_MEMTYPE_DDR2) {
-               if (effective_data_rate == 266 || effective_data_rate == 333) {
-                       cpo = 0x7;              /* READ_LAT + 5/4 */
-               } else if (effective_data_rate == 400) {
+               if (effective_data_rate == 266) {
+                       cpo = 0x4;              /* READ_LAT + 1/2 */
+               } else if (effective_data_rate == 333 || effective_data_rate == 400) {
                        cpo = 0x7;              /* READ_LAT + 5/4 */
                } else {
                        /* Automatic calibration */