[PATCH] drivers: ddr: altera: Correct DDR calibration status check

[Naresh Kumar Ravulapalli]

Bit 3 of the seq2core register is no longer set to indicate
calibration completion. Instead, added polling of the seq2core
register until it reads 0b00000111, signaling that the Nios
processor has started the calibration process.

Signed-off-by: Naresh Kumar Ravulapalli <nareshkumar.ravulapalli at altera.com>
---
 drivers/ddr/altera/sdram_soc64.c | 6 +++---
 drivers/ddr/altera/sdram_soc64.h | 2 +-
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/ddr/altera/sdram_soc64.c b/drivers/ddr/altera/sdram_soc64.c
index 27fbe80ed41..4ce129f5e2b 100644
--- a/drivers/ddr/altera/sdram_soc64.c
+++ b/drivers/ddr/altera/sdram_soc64.c
@@ -82,11 +82,11 @@ int emif_reset(struct altera_sdram_plat *plat)
 	debug("DDR: Triggerring emif reset\n");
 	hmc_ecc_writel(plat, DDR_HMC_CORE2SEQ_INT_REQ, RSTHANDSHAKECTRL);
 
-	/* if seq2core[3] = 0, we are good */
+	/* if seq2core[2:0] = 0b0000_0111, we are good */
 	ret = wait_for_bit_le32((const void *)(plat->hmc +
 				 RSTHANDSHAKESTAT),
-				 DDR_HMC_SEQ2CORE_INT_RESP_MASK,
-				 false, 1000, false);
+				 DDR_HMC_SEQ2CORE_INT_REQ_ACK_MASK,
+				 true, 1000, false);
 	if (ret) {
 		printf("DDR: failed to get ack from EMIF\n");
 		return ret;
diff --git a/drivers/ddr/altera/sdram_soc64.h b/drivers/ddr/altera/sdram_soc64.h
index 183b1a33080..2ed31b99b29 100644
--- a/drivers/ddr/altera/sdram_soc64.h
+++ b/drivers/ddr/altera/sdram_soc64.h
@@ -64,7 +64,7 @@ struct altera_sdram_plat {
 #define DDR_HMC_INTMODE_INTMODE_SET_MSK		BIT(0)
 #define DDR_HMC_RSTHANDSHAKE_MASK		0x0000000f
 #define DDR_HMC_CORE2SEQ_INT_REQ		0xF
-#define DDR_HMC_SEQ2CORE_INT_RESP_MASK		BIT(3)
+#define DDR_HMC_SEQ2CORE_INT_REQ_ACK_MASK	GENMASK(2, 0)
 #define DDR_HMC_HPSINTFCSEL_ENABLE_MASK		0x001f1f1f
 
 #define	DDR_HMC_ERRINTEN_INTMASK				\
-- 
2.35.3