This restores support for configuring the timing mode based on the ddr_topology. This was originally implemented in commit 90bcc3d38d2b ("driver/ddr: Add support for setting timing in hws_topology_map") but was removed as part of the upstream sync.
Signed-off-by: Chris Packham judge.packham@gmail.com ---
Changes in v3: None Changes in v2: None
board/CZ.NIC/turris_omnia/turris_omnia.c | 6 ++++-- board/Marvell/db-88f6820-amc/db-88f6820-amc.c | 3 ++- board/Marvell/db-88f6820-gp/db-88f6820-gp.c | 3 ++- board/gdsys/a38x/controlcenterdc.c | 3 ++- board/solidrun/clearfog/clearfog.c | 3 ++- drivers/ddr/marvell/a38x/ddr3_training.c | 8 ++++++++ drivers/ddr/marvell/a38x/ddr_topology_def.h | 3 +++ drivers/ddr/marvell/a38x/mv_ddr_plat.c | 5 ----- drivers/ddr/marvell/a38x/mv_ddr_topology.h | 6 ++++++ 9 files changed, 29 insertions(+), 11 deletions(-)
diff --git a/board/CZ.NIC/turris_omnia/turris_omnia.c b/board/CZ.NIC/turris_omnia/turris_omnia.c index 29f81cdccfd4..da663cf1bb0c 100644 --- a/board/CZ.NIC/turris_omnia/turris_omnia.c +++ b/board/CZ.NIC/turris_omnia/turris_omnia.c @@ -214,7 +214,8 @@ static struct mv_ddr_topology_map board_topology_map_1g = { MV_DDR_DIE_CAP_4GBIT, /* mem_size */ DDR_FREQ_800, /* frequency */ 0, 0, /* cas_wl cas_l */ - MV_DDR_TEMP_NORMAL} }, /* temperature */ + MV_DDR_TEMP_NORMAL, /* temperature */ + MV_DDR_TIM_2T} }, /* timing */ BUS_MASK_32BIT, /* Busses mask */ MV_DDR_CFG_DEFAULT, /* ddr configuration data source */ { {0} }, /* raw spd data */ @@ -235,7 +236,8 @@ static struct mv_ddr_topology_map board_topology_map_2g = { MV_DDR_DIE_CAP_8GBIT, /* mem_size */ DDR_FREQ_800, /* frequency */ 0, 0, /* cas_wl cas_l */ - MV_DDR_TEMP_NORMAL} }, /* temperature */ + MV_DDR_TEMP_NORMAL, /* temperature */ + MV_DDR_TIM_2T} }, /* timing */ BUS_MASK_32BIT, /* Busses mask */ MV_DDR_CFG_DEFAULT, /* ddr configuration data source */ { {0} }, /* raw spd data */ diff --git a/board/Marvell/db-88f6820-amc/db-88f6820-amc.c b/board/Marvell/db-88f6820-amc/db-88f6820-amc.c index e39dc75f9228..92d7ae77f07e 100644 --- a/board/Marvell/db-88f6820-amc/db-88f6820-amc.c +++ b/board/Marvell/db-88f6820-amc/db-88f6820-amc.c @@ -69,7 +69,8 @@ static struct mv_ddr_topology_map board_topology_map = { MV_DDR_DIE_CAP_2GBIT, /* mem_size */ DDR_FREQ_800, /* frequency */ 0, 0, /* cas_wl cas_l */ - MV_DDR_TEMP_LOW} }, /* temperature */ + MV_DDR_TEMP_LOW, /* temperature */ + MV_DDR_TIM_DEFAULT} }, /* timing */ BUS_MASK_32BIT, /* Busses mask */ MV_DDR_CFG_DEFAULT, /* ddr configuration data source */ { {0} }, /* raw spd data */ diff --git a/board/Marvell/db-88f6820-gp/db-88f6820-gp.c b/board/Marvell/db-88f6820-gp/db-88f6820-gp.c index ee12ca68ec2a..a8cfe8af0a88 100644 --- a/board/Marvell/db-88f6820-gp/db-88f6820-gp.c +++ b/board/Marvell/db-88f6820-gp/db-88f6820-gp.c @@ -90,7 +90,8 @@ static struct mv_ddr_topology_map board_topology_map = { MV_DDR_DIE_CAP_4GBIT, /* mem_size */ DDR_FREQ_800, /* frequency */ 0, 0, /* cas_wl cas_l */ - MV_DDR_TEMP_LOW} }, /* temperature */ + MV_DDR_TEMP_LOW, /* temperature */ + MV_DDR_TIM_DEFAULT} }, /* timing */ BUS_MASK_32BIT, /* Busses mask */ MV_DDR_CFG_DEFAULT, /* ddr configuration data source */ { {0} }, /* raw spd data */ diff --git a/board/gdsys/a38x/controlcenterdc.c b/board/gdsys/a38x/controlcenterdc.c index f750e47b7228..320bc100c9da 100644 --- a/board/gdsys/a38x/controlcenterdc.c +++ b/board/gdsys/a38x/controlcenterdc.c @@ -53,7 +53,8 @@ static struct mv_ddr_topology_map ddr_topology_map = { MV_DDR_DIE_CAP_4GBIT, /* mem_size */ DDR_FREQ_533, /* frequency */ 0, 0, /* cas_wl cas_l */ - MV_DDR_TEMP_LOW} }, /* temperature */ + MV_DDR_TEMP_LOW, /* temperature */ + MV_DDR_TIM_DEFAULT} }, /* timing */ BUS_MASK_32BIT, /* Busses mask */ MV_DDR_CFG_DEFAULT, /* ddr configuration data source */ { {0} }, /* raw spd data */ diff --git a/board/solidrun/clearfog/clearfog.c b/board/solidrun/clearfog/clearfog.c index cc11feb85e30..ede303d4ebf9 100644 --- a/board/solidrun/clearfog/clearfog.c +++ b/board/solidrun/clearfog/clearfog.c @@ -83,7 +83,8 @@ static struct mv_ddr_topology_map board_topology_map = { MV_DDR_DIE_CAP_4GBIT, /* mem_size */ DDR_FREQ_800, /* frequency */ 0, 0, /* cas_wl cas_l */ - MV_DDR_TEMP_LOW} }, /* temperature */ + MV_DDR_TEMP_LOW, /* temperature */ + MV_DDR_TIM_DEFAULT} }, /* timing */ BUS_MASK_32BIT, /* Busses mask */ MV_DDR_CFG_DEFAULT, /* ddr configuration data source */ { {0} }, /* raw spd data */ diff --git a/drivers/ddr/marvell/a38x/ddr3_training.c b/drivers/ddr/marvell/a38x/ddr3_training.c index 1f26d506da3a..799c5ba089a0 100644 --- a/drivers/ddr/marvell/a38x/ddr3_training.c +++ b/drivers/ddr/marvell/a38x/ddr3_training.c @@ -365,6 +365,7 @@ int hws_ddr3_tip_init_controller(u32 dev_num, struct init_cntr_param *init_cntr_ u32 octets_per_if_num = ddr3_tip_dev_attr_get(dev_num, MV_ATTR_OCTET_PER_INTERFACE); struct mv_ddr_topology_map *tm = mv_ddr_topology_map_get(); enum hws_ddr_freq freq = tm->interface_params[0].memory_freq; + enum mv_ddr_timing timing;
DEBUG_TRAINING_IP(DEBUG_LEVEL_TRACE, ("Init_controller, do_mrs_phy=%d, is_ctrl64_bit=%d\n", @@ -603,8 +604,12 @@ int hws_ddr3_tip_init_controller(u32 dev_num, struct init_cntr_param *init_cntr_ DUNIT_CTRL_HIGH_REG, (init_cntr_prm->msys_init << 7), (1 << 7)));
+ timing = tm->interface_params[if_id].timing; + if (mode_2t != 0xff) { t2t = mode_2t; + } else if (timing != MV_DDR_TIM_DEFAULT) { + t2t = (timing == MV_DDR_TIM_2T) ? 1 : 0; } else { /* calculate number of CS (per interface) */ CHECK_STATUS(calc_cs_num @@ -1268,6 +1273,7 @@ int ddr3_tip_freq_set(u32 dev_num, enum hws_access_type access_type, u32 octets_per_if_num = ddr3_tip_dev_attr_get(dev_num, MV_ATTR_OCTET_PER_INTERFACE); struct mv_ddr_topology_map *tm = mv_ddr_topology_map_get(); unsigned int tclk; + enum mv_ddr_timing timing = tm->interface_params[if_id].timing;
DEBUG_TRAINING_IP(DEBUG_LEVEL_TRACE, ("dev %d access %d IF %d freq %d\n", dev_num, @@ -1410,6 +1416,8 @@ int ddr3_tip_freq_set(u32 dev_num, enum hws_access_type access_type, /* Calculate 2T mode */ if (mode_2t != 0xff) { t2t = mode_2t; + } else if (timing != MV_DDR_TIM_DEFAULT) { + t2t = (timing == MV_DDR_TIM_2T) ? 1 : 0; } else { /* Calculate number of CS per interface */ CHECK_STATUS(calc_cs_num(dev_num, if_id, &cs_num)); diff --git a/drivers/ddr/marvell/a38x/ddr_topology_def.h b/drivers/ddr/marvell/a38x/ddr_topology_def.h index 2c589eb3a655..812224909ae4 100644 --- a/drivers/ddr/marvell/a38x/ddr_topology_def.h +++ b/drivers/ddr/marvell/a38x/ddr_topology_def.h @@ -64,6 +64,9 @@ struct if_params {
/* operation temperature */ enum mv_ddr_temperature interface_temp; + + /* 2T vs 1T mode (by default computed from number of CSs) */ + enum mv_ddr_timing timing; };
struct mv_ddr_topology_map { diff --git a/drivers/ddr/marvell/a38x/mv_ddr_plat.c b/drivers/ddr/marvell/a38x/mv_ddr_plat.c index ce672e9dd4fa..2070bb38b099 100644 --- a/drivers/ddr/marvell/a38x/mv_ddr_plat.c +++ b/drivers/ddr/marvell/a38x/mv_ddr_plat.c @@ -674,11 +674,6 @@ static int mv_ddr_sw_db_init(u32 dev_num, u32 board_id) dfs_low_freq = DFS_LOW_FREQ_VALUE; calibration_update_control = 1;
-#ifdef CONFIG_ARMADA_38X - /* For a38x only, change to 2T mode to resolve low freq instability */ - mode_2t = 1; -#endif - ddr3_tip_a38x_get_medium_freq(dev_num, &medium_freq);
return MV_OK; diff --git a/drivers/ddr/marvell/a38x/mv_ddr_topology.h b/drivers/ddr/marvell/a38x/mv_ddr_topology.h index eb017a149726..7bef2d1e0e87 100644 --- a/drivers/ddr/marvell/a38x/mv_ddr_topology.h +++ b/drivers/ddr/marvell/a38x/mv_ddr_topology.h @@ -36,6 +36,12 @@ enum mv_ddr_temperature { MV_DDR_TEMP_HIGH };
+enum mv_ddr_timing { + MV_DDR_TIM_DEFAULT, + MV_DDR_TIM_1T, + MV_DDR_TIM_2T +}; + enum mv_ddr_timing_data { MV_DDR_TCK_AVG_MIN, /* sdram min cycle time (t ck avg min) */ MV_DDR_TAA_MIN, /* min cas latency time (t aa min) */