diff options
Diffstat (limited to 'drivers/ddr/marvell/a38x/ddr3_training_hw_algo.c')
| -rw-r--r-- | drivers/ddr/marvell/a38x/ddr3_training_hw_algo.c | 22 |
1 files changed, 14 insertions, 8 deletions
diff --git a/drivers/ddr/marvell/a38x/ddr3_training_hw_algo.c b/drivers/ddr/marvell/a38x/ddr3_training_hw_algo.c index 56fce174d4c..1fc173b6002 100644 --- a/drivers/ddr/marvell/a38x/ddr3_training_hw_algo.c +++ b/drivers/ddr/marvell/a38x/ddr3_training_hw_algo.c @@ -17,7 +17,7 @@ #define VREF_MAX_INDEX 7 #define MAX_VALUE (1024 - 1) #define MIN_VALUE (-MAX_VALUE) -#define GET_RD_SAMPLE_DELAY(data, cs) ((data >> rd_sample_mask[cs]) & 0xf) +#define GET_RD_SAMPLE_DELAY(data, cs) ((data >> rd_sample_mask[cs]) & 0x1f) u32 ck_delay = (u32)-1, ck_delay_16 = (u32)-1; u32 ca_delay; @@ -49,7 +49,7 @@ static u32 rd_sample_mask[] = { */ int ddr3_tip_write_additional_odt_setting(u32 dev_num, u32 if_id) { - u32 cs_num = 0, max_read_sample = 0, min_read_sample = 0; + u32 cs_num = 0, max_cs = 0, max_read_sample = 0, min_read_sample = 0x1f; u32 data_read[MAX_INTERFACE_NUM] = { 0 }; u32 read_sample[MAX_CS_NUM]; u32 val; @@ -66,15 +66,19 @@ int ddr3_tip_write_additional_odt_setting(u32 dev_num, u32 if_id) data_read, MASK_ALL_BITS)); val = data_read[if_id]; - for (cs_num = 0; cs_num < MAX_CS_NUM; cs_num++) { + max_cs = hws_ddr3_tip_max_cs_get(); + + for (cs_num = 0; cs_num < max_cs; cs_num++) { read_sample[cs_num] = GET_RD_SAMPLE_DELAY(val, cs_num); /* find maximum of read_samples */ if (read_sample[cs_num] >= max_read_sample) { - if (read_sample[cs_num] == max_read_sample) - max_phase = MIN_VALUE; - else + if (read_sample[cs_num] == max_read_sample) { + /* search for max phase */; + } else { max_read_sample = read_sample[cs_num]; + max_phase = MIN_VALUE; + } for (pup_index = 0; pup_index < tm->num_of_bus_per_interface; @@ -97,10 +101,12 @@ int ddr3_tip_write_additional_odt_setting(u32 dev_num, u32 if_id) min_read_sample = read_sample[cs_num]; } + if (min_read_sample <= tm->interface_params[if_id].cas_l) { + min_read_sample = (int)tm->interface_params[if_id].cas_l; + } + min_read_sample = min_read_sample - 1; max_read_sample = max_read_sample + 4 + (max_phase + 1) / 2 + 1; - if (min_read_sample >= 0xf) - min_read_sample = 0xf; if (max_read_sample >= 0x1f) max_read_sample = 0x1f; |