diff options
| author | Jagan Teki | 2019-07-15 23:58:42 +0530 |
|---|---|---|
| committer | Kever Yang | 2019-07-19 11:11:09 +0800 |
| commit | 21cf392b1f3444c9d758f028de0e3630631ba75b (patch) | |
| tree | d5a0a966ae46b41dd2001ecd3d4b35eeff4d0b62 /drivers/ram | |
| parent | 708e9a79dc297aeb8a62dc6ba95b651b0493e1e1 (diff) | |
ram: rk3399: Use rank mask in wdql data training
Add rank_mask based on the rank number, 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 | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/ram/rockchip/sdram_rk3399.c b/drivers/ram/rockchip/sdram_rk3399.c index b98df20fa53..16bd9427a65 100644 --- a/drivers/ram/rockchip/sdram_rk3399.c +++ b/drivers/ram/rockchip/sdram_rk3399.c @@ -861,11 +861,17 @@ static int data_training_wdql(const struct chan_info *chan, u32 channel, u32 *denali_pi = chan->pi->denali_pi; u32 i, tmp; u32 rank = params->ch[channel].cap_info.rank; + u32 rank_mask; /* clear interrupt,PI_175 PI_INT_ACK:WR:0:17 */ writel(0x00003f7c, (&denali_pi[175])); - for (i = 0; i < rank; i++) { + rank_mask = (rank == 1) ? 0x1 : 0x3; + + for (i = 0; i < 4; i++) { + if (!(rank_mask & (1 << i))) + continue; + select_per_cs_training_index(chan, i); /* |