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-rw-r--r--drivers/ddr/marvell/a38x/ddr3_training.c6
-rw-r--r--drivers/ddr/marvell/a38x/ddr_topology_def.h9
2 files changed, 15 insertions, 0 deletions
diff --git a/drivers/ddr/marvell/a38x/ddr3_training.c b/drivers/ddr/marvell/a38x/ddr3_training.c
index 7e0749fde3..e70ca4b425 100644
--- a/drivers/ddr/marvell/a38x/ddr3_training.c
+++ b/drivers/ddr/marvell/a38x/ddr3_training.c
@@ -308,6 +308,7 @@ int hws_ddr3_tip_init_controller(u32 dev_num, struct init_cntr_param *init_cntr_
enum hws_speed_bin speed_bin_index = SPEED_BIN_DDR_2133N;
enum hws_mem_size memory_size = MEM_2G;
enum hws_ddr_freq freq = init_freq;
+ enum hws_timing timing;
u32 cs_mask = 0;
u32 cl_value = 0, cwl_val = 0;
u32 refresh_interval_cnt = 0, bus_cnt = 0, adll_tap = 0;
@@ -569,8 +570,13 @@ int hws_ddr3_tip_init_controller(u32 dev_num, struct init_cntr_param *init_cntr_
DUNIT_CONTROL_HIGH_REG,
(init_cntr_prm->msys_init << 7), (1 << 7)));
+ timing = tm->interface_params[if_id].timing;
+
if (mode2_t != 0xff) {
t2t = mode2_t;
+ } else if (timing != HWS_TIM_DEFAULT) {
+ /* Board topology map is forcing timing */
+ t2t = (timing == HWS_TIM_2T) ? 1 : 0;
} else {
/* calculate number of CS (per interface) */
CHECK_STATUS(calc_cs_num
diff --git a/drivers/ddr/marvell/a38x/ddr_topology_def.h b/drivers/ddr/marvell/a38x/ddr_topology_def.h
index f8894e828a..229c3a127a 100644
--- a/drivers/ddr/marvell/a38x/ddr_topology_def.h
+++ b/drivers/ddr/marvell/a38x/ddr_topology_def.h
@@ -37,6 +37,12 @@ enum hws_mem_size {
MEM_SIZE_LAST
};
+enum hws_timing {
+ HWS_TIM_DEFAULT,
+ HWS_TIM_1T,
+ HWS_TIM_2T
+};
+
struct bus_params {
/* Chip Select (CS) bitmask (bits 0-CS0, bit 1- CS1 ...) */
u8 cs_bitmask;
@@ -84,6 +90,9 @@ struct if_params {
/* operation temperature */
enum hws_temperature interface_temp;
+
+ /* 2T vs 1T mode (by default computed from number of CSs) */
+ enum hws_timing timing;
};
struct hws_topology_map {