Add rank_mask based on the rank number for lpddr4.
This would keep the ca data training loop based on the
desired rank mask value instead of looping for all values.
Signed-off-by: Jagan Teki <ja...@amarulasolutions.com>
Signed-off-by: YouMin Chen <c...@rock-chips.com>
---
drivers/ram/rockchip/sdram_rk3399.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/ram/rockchip/sdram_rk3399.c
b/drivers/ram/rockchip/sdram_rk3399.c
index 7f01681a01..d967a602bc 100644
--- a/drivers/ram/rockchip/sdram_rk3399.c
+++ b/drivers/ram/rockchip/sdram_rk3399.c
@@ -687,7 +687,10 @@ static int data_training_ca(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)))
--
2.18.0.321.gffc6fa0e3
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