[U-Boot] [PATCH v2 08/99] ram: rk3399: Clear PI_175 interrupts in data training

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@amarulasolutions.com Signed-off-by: YouMin Chen cym@rock-chips.com --- 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 20a3e89c17..1898466b4c 100644 --- a/drivers/ram/rockchip/sdram_rk3399.c +++ b/drivers/ram/rockchip/sdram_rk3399.c @@ -617,6 +617,9 @@ static int data_training_ca(const struct chan_info *chan, u32 channel, u32 obs_0, obs_1, obs_2, obs_err = 0; u32 rank = 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);

@@ -671,6 +674,9 @@ 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 = 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);

@@ -730,6 +736,9 @@ 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 = 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);

@@ -789,6 +798,9 @@ static int data_training_rl(const struct chan_info *chan, u32 channel, u32 i, tmp; u32 rank = 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);

@@ -834,6 +846,9 @@ static int data_training_wdql(const struct chan_info *chan, u32 channel, u32 i, tmp; u32 rank = 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);