powerpc/T104xD4RDB: Add T104xD4RDB boards support

[karo-tx-uboot.git] / board / freescale / t104xrdb / ddr.c

diff --git a/board/freescale/t104xrdb/ddr.c b/board/freescale/t104xrdb/ddr.c
index e1148e568e8ee66a9ae36adf0764083a81621a84..cf79d2ddb2d462b7051ee473cbfc5909952f22e7 100644 (file)
--- a/board/freescale/t104xrdb/ddr.c
+++ b/board/freescale/t104xrdb/ddr.c
@@ -75,7 +75,11 @@ found:
         * Factors to consider for half-strength driver enable:
         *      - number of DIMMs installed
         */
+#ifdef CONFIG_SYS_FSL_DDR4
+       popts->half_strength_driver_enable = 1;
+#else
        popts->half_strength_driver_enable = 0;
+#endif
        /*
         * Write leveling override
         */
@@ -91,8 +95,14 @@ found:
        popts->zq_en = 1;
 
        /* DHC_EN =1, ODT = 75 Ohm */
+#ifdef CONFIG_SYS_FSL_DDR4
+       popts->ddr_cdr1 = DDR_CDR1_DHC_EN | DDR_CDR1_ODT(DDR_CDR_ODT_120OHM);
+       popts->ddr_cdr2 = DDR_CDR2_ODT(DDR_CDR_ODT_120OHM) |
+               DDR_CDR2_VREF_OVRD(70);       /* Vref = 70% */
+#else
        popts->ddr_cdr1 = DDR_CDR1_DHC_EN | DDR_CDR1_ODT(DDR_CDR_ODT_75ohm);
        popts->ddr_cdr2 = DDR_CDR2_ODT(DDR_CDR_ODT_75ohm);
+#endif
 }
 
 #if defined(CONFIG_DEEP_SLEEP)