Clear the PI_175 interrupts before processing actual
data training in all relevant calls.
This would help to clear interrupt from previous training.
Signed-off-by: Jagan Teki <jagan@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: YouMin Chen <cym@xxxxxxxxxxxxxx>
---
drivers/ram/rockchip/sdram_rk3399.c | 15 +++++++++++++++
1 file changed, 15 insertions(+)
diff --git a/drivers/ram/rockchip/sdram_rk3399.c b/drivers/ram/rockchip/sdram_rk3399.c
index 52633166c1..74392076f0 100644
--- a/drivers/ram/rockchip/sdram_rk3399.c
+++ b/drivers/ram/rockchip/sdram_rk3399.c
@@ -618,6 +618,9 @@ static int data_training_ca(const struct chan_info *chan, u32 channel,
u32 obs_0, obs_1, obs_2, obs_err = 0;
u32 rank = sdram_params->ch[channel].rank;
+ /* clear interrupt,PI_175 PI_INT_ACK:WR:0:17 */
+ writel(0x00003f7c, (&denali_pi[175]));
+
for (i = 0; i < rank; i++) {
select_per_cs_training_index(chan, i);
@@ -672,6 +675,9 @@ static int data_training_wl(const struct chan_info *chan, u32 channel,
u32 obs_0, obs_1, obs_2, obs_3, obs_err = 0;
u32 rank = sdram_params->ch[channel].rank;
+ /* clear interrupt,PI_175 PI_INT_ACK:WR:0:17 */
+ writel(0x00003f7c, (&denali_pi[175]));
+
for (i = 0; i < rank; i++) {
select_per_cs_training_index(chan, i);
@@ -731,6 +737,9 @@ static int data_training_rg(const struct chan_info *chan, u32 channel,
u32 obs_0, obs_1, obs_2, obs_3, obs_err = 0;
u32 rank = sdram_params->ch[channel].rank;
+ /* clear interrupt,PI_175 PI_INT_ACK:WR:0:17 */
+ writel(0x00003f7c, (&denali_pi[175]));
+
for (i = 0; i < rank; i++) {
select_per_cs_training_index(chan, i);
@@ -790,6 +799,9 @@ static int data_training_rl(const struct chan_info *chan, u32 channel,
u32 i, tmp;
u32 rank = sdram_params->ch[channel].rank;
+ /* clear interrupt,PI_175 PI_INT_ACK:WR:0:17 */
+ writel(0x00003f7c, (&denali_pi[175]));
+
for (i = 0; i < rank; i++) {
select_per_cs_training_index(chan, i);
@@ -835,6 +847,9 @@ static int data_training_wdql(const struct chan_info *chan, u32 channel,
u32 i, tmp;
u32 rank = sdram_params->ch[channel].rank;
+ /* clear interrupt,PI_175 PI_INT_ACK:WR:0:17 */
+ writel(0x00003f7c, (&denali_pi[175]));
+
for (i = 0; i < rank; i++) {
select_per_cs_training_index(chan, i);
--
2.18.0.321.gffc6fa0e3
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