linux-kernel - [PATCH 5/5] edac: synopsys: Enable CE and UE interrupts for ZynqMP DDRC

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Date:   Fri,  4 Aug 2017 14:00:27 +0200
From:   Michal Simek <michal.simek@...inx.com>
To:     linux-kernel@...r.kernel.org, monstr@...str.eu
Cc:     Naga Sureshkumar Relli <naga.sureshkumar.relli@...inx.com>,
        Sören Brinkmann <soren.brinkmann@...inx.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Borislav Petkov <bp@...en8.de>,
        linux-arm-kernel@...ts.infradead.org, linux-edac@...r.kernel.org
Subject: [PATCH 5/5] edac: synopsys: Enable CE and UE interrupts for ZynqMP DDRC

From: Naga Sureshkumar Relli <naga.sureshkumar.relli@...inx.com>

This patch enables Corrected and Uncorrected Error
interrupts for ZynqMP DDRC controller

Signed-off-by: Naga Sureshkumar Relli <nagasure@...inx.com>
Reviewed-by: Punnaiah Choudary Kalluri <punnaia@...inx.com>
Signed-off-by: Michal Simek <michal.simek@...inx.com>
---

 drivers/edac/synopsys_edac.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/edac/synopsys_edac.c b/drivers/edac/synopsys_edac.c
index 501ef447df37..6ce2f4c4cb3d 100644
--- a/drivers/edac/synopsys_edac.c
+++ b/drivers/edac/synopsys_edac.c
@@ -165,6 +165,8 @@
 #define DDR_QOSUE_MASK		0x4
 #define	DDR_QOSCE_MASK		0x2
 #define	ECC_CE_UE_INTR_MASK	0x6
+#define DDR_QOS_IRQ_EN_OFST     0x20208
+#define DDR_QOS_IRQ_DB_OFST	0x2020C
 
 /* ECC Corrected Error Register Mask and Shifts*/
 #define ECC_CEADDR0_RW_MASK	0x3FFFF
@@ -1115,6 +1117,10 @@ static int synps_edac_mc_probe(struct platform_device *pdev)
 			edac_printk(KERN_ERR, EDAC_MC, "Failed to request Irq\n");
 			goto free_edac_mc;
 		}
+
+		/* Enable UE/CE Interrupts */
+		writel((DDR_QOSUE_MASK | DDR_QOSCE_MASK),
+			priv->baseaddr + DDR_QOS_IRQ_EN_OFST);
 	}
 
 	rc = edac_mc_add_mc(mci);
@@ -1157,6 +1163,10 @@ static int synps_edac_mc_remove(struct platform_device *pdev)
 	struct synps_edac_priv *priv;
 
 	priv = mci->pvt_info;
+	if (priv->p_data->quirks & DDR_ECC_INTR_SUPPORT)
+		/* Disable UE/CE Interrupts */
+		writel((DDR_QOSUE_MASK | DDR_QOSCE_MASK),
+			priv->baseaddr + DDR_QOS_IRQ_DB_OFST);
 	edac_mc_del_mc(&pdev->dev);
 	if (priv->p_data->quirks & DDR_ECC_DATA_POISON_SUPPORT)
 		synps_edac_remove_sysfs_attributes(mci);
-- 
1.9.1