diff --git a/board/freescale/t1040qds/ddr.c b/board/freescale/t1040qds/ddr.c
index 8240240..cb58d1e 100644
--- a/board/freescale/t1040qds/ddr.c
+++ b/board/freescale/t1040qds/ddr.c
@@ -95,6 +95,9 @@
 	popts->ddr_cdr1 = DDR_CDR1_DHC_EN | DDR_CDR1_ODT(DDR_CDR_ODT_80ohm);
 	popts->ddr_cdr2 = DDR_CDR2_ODT(DDR_CDR_ODT_80ohm) |
 			  DDR_CDR2_VREF_OVRD(70);	/* Vref = 70% */
+
+	/* optimize cpo for erratum A-009942 */
+	popts->cpo_sample = 0x69;
 #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);