diff options
| author | Jagan Teki <jagan@amarulasolutions.com> | 2019-07-16 17:27:10 +0530 |
|---|---|---|
| committer | Kever Yang <kever.yang@rock-chips.com> | 2019-07-20 23:59:44 +0800 |
| commit | c716bf67f5eb54ed64538f7ce70b36da04c55352 (patch) | |
| tree | 9b6288a35908cf75f75a9651d7af7c4ad37a2228 /drivers/ram | |
| parent | 3dae87da89e4c9edb4da9e05bde2e10bb98bd885 (diff) | |
| download | u-boot-c716bf67f5eb54ed64538f7ce70b36da04c55352.tar.gz u-boot-c716bf67f5eb54ed64538f7ce70b36da04c55352.tar.bz2 u-boot-c716bf67f5eb54ed64538f7ce70b36da04c55352.zip | |
ram: rk3399: Add lpddr4 rank mask for wdql training
Add rank_mask based on the rank number for lpddr4.
This would keep the wdql data training loop based on the
desired rank mask value instead of looping for all values.
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Signed-off-by: YouMin Chen <cym@rock-chips.com>
Reviewed-by: Kever Yang <Kever.yang@rock-chips.com>
Diffstat (limited to 'drivers/ram')
| -rw-r--r-- | drivers/ram/rockchip/sdram_rk3399.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/ram/rockchip/sdram_rk3399.c b/drivers/ram/rockchip/sdram_rk3399.c index b7cad9274b..3f20aba939 100644 --- a/drivers/ram/rockchip/sdram_rk3399.c +++ b/drivers/ram/rockchip/sdram_rk3399.c @@ -925,7 +925,10 @@ static int data_training_wdql(const struct chan_info *chan, u32 channel, /* clear interrupt,PI_175 PI_INT_ACK:WR:0:17 */ writel(0x00003f7c, (&denali_pi[175])); - rank_mask = (rank == 1) ? 0x1 : 0x3; + if (params->base.dramtype == LPDDR4) + rank_mask = (rank == 1) ? 0x5 : 0xf; + else + rank_mask = (rank == 1) ? 0x1 : 0x3; for (i = 0; i < 4; i++) { if (!(rank_mask & (1 << i))) |