diff options
| author | Baruch Siach <baruch@tkos.co.il> | 2021-02-19 17:11:17 +0100 |
|---|---|---|
| committer | Stefan Roese <sr@denx.de> | 2021-02-26 10:22:29 +0100 |
| commit | 369e532691e0df4bce5ea8d0963ec3dc061d15a6 (patch) | |
| tree | 43013a6886409d6807d401af6eeaf1a0708dcb68 /drivers/ddr | |
| parent | 6e0532401bd4b8f368bd813048b8f3cfdda227c0 (diff) | |
ddr: marvell: a38x: allow board specific ODT configuration
commit 2d3b9437cf38c06c4330e0de07f29476197f5e04 upstream.
The ODT enable heuristic based on active chip-selects is not always
correct. Some board might use two chip-selects, but have only one ODT
line connected. Allow board specific mv_ddr_topology_map to directly set
the ODT configuration register value.
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Reviewed-by: Moti Buskila <motib@marvell.com>
Reviewed-by: Nadav Haklai <Nadav.Haklai@cavium.com>
Reviewed-by: Kostya Porotchkin <Kostya.Porotchkin@cavium.com>
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Tested-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Diffstat (limited to 'drivers/ddr')
| -rw-r--r-- | drivers/ddr/marvell/a38x/ddr3_init.c | 5 | ||||
| -rw-r--r-- | drivers/ddr/marvell/a38x/ddr_topology_def.h | 3 |
2 files changed, 8 insertions, 0 deletions
diff --git a/drivers/ddr/marvell/a38x/ddr3_init.c b/drivers/ddr/marvell/a38x/ddr3_init.c index a971cc155a..7488770268 100644 --- a/drivers/ddr/marvell/a38x/ddr3_init.c +++ b/drivers/ddr/marvell/a38x/ddr3_init.c @@ -104,6 +104,7 @@ int ddr3_init(void) static int mv_ddr_training_params_set(u8 dev_num) { struct tune_train_params params; + struct mv_ddr_topology_map *tm = mv_ddr_topology_map_get(); int status; u32 cs_num; int ck_delay; @@ -136,6 +137,10 @@ static int mv_ddr_training_params_set(u8 dev_num) if (ck_delay > 0) params.ck_delay = ck_delay; + /* Use platform specific override ODT value */ + if (tm->odt_config) + params.g_odt_config = tm->odt_config; + status = ddr3_tip_tune_training_params(dev_num, ¶ms); if (MV_OK != status) { printf("%s Training Sequence - FAILED\n", ddr_type); diff --git a/drivers/ddr/marvell/a38x/ddr_topology_def.h b/drivers/ddr/marvell/a38x/ddr_topology_def.h index 342c2cf451..3991fec272 100644 --- a/drivers/ddr/marvell/a38x/ddr_topology_def.h +++ b/drivers/ddr/marvell/a38x/ddr_topology_def.h @@ -125,6 +125,9 @@ struct mv_ddr_topology_map { /* electrical parameters */ unsigned int electrical_data[MV_DDR_EDATA_LAST]; + /* ODT configuration */ + u32 odt_config; + /* Clock enable mask */ u32 clk_enable; |