diff options
Diffstat (limited to 'drivers')
| -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 fe26144f27d..b98df20fa53 100644 --- a/drivers/ram/rockchip/sdram_rk3399.c +++ b/drivers/ram/rockchip/sdram_rk3399.c @@ -626,11 +626,17 @@ static int data_training_ca(const struct chan_info *chan, u32 channel, u32 i, tmp; u32 obs_0, obs_1, obs_2, obs_err = 0; 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); /* PI_100 PI_CALVL_EN:RW:8:2 */ |