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-rw-r--r--board/freescale/p2020ds/ddr.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/board/freescale/p2020ds/ddr.c b/board/freescale/p2020ds/ddr.c
index c43f874..59034f9 100644
--- a/board/freescale/p2020ds/ddr.c
+++ b/board/freescale/p2020ds/ddr.c
@@ -57,6 +57,7 @@ void fsl_ddr_board_options(memctl_options_t *popts,
{
const struct board_specific_parameters *pbsp, *pbsp_highest = NULL;
ulong ddr_freq;
+ int i;
if (ctrl_num) {
printf("Wrong parameter for controller number %d", ctrl_num);
@@ -65,6 +66,17 @@ void fsl_ddr_board_options(memctl_options_t *popts,
if (!pdimm->n_ranks)
return;
+ /*
+ * set odt_rd_cfg and odt_wr_cfg. If the there is only one dimm in
+ * that controller, set odt_wr_cfg to 4 for CS0, and 0 to CS1. If
+ * there are two dimms in the controller, set odt_rd_cfg to 3 and
+ * odt_wr_cfg to 3 for the even CS, 0 for the odd CS.
+ */
+ for (i = 0; i < CONFIG_CHIP_SELECTS_PER_CTRL; i++) {
+ popts->cs_local_opts[i].odt_rd_cfg = 0;
+ popts->cs_local_opts[i].odt_wr_cfg = 1;
+ }
+
pbsp = dimm0;
/* Get clk_adjust, cpo, write_data_delay,2T, according to the board ddr