linux-kernel - [PATCH V2 1/2] EDAC: synopsys: Add disable_intr support for V3.X Synopsys EDAC DDR

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Message-Id: <20220421015313.5747-2-sherry.sun@nxp.com>
Date:   Thu, 21 Apr 2022 09:53:12 +0800
From:   Sherry Sun <sherry.sun@....com>
To:     michal.simek@...inx.com, bp@...en8.de,
        Shubhrajyoti.datta@...inx.com, mchehab@...nel.org,
        tony.luck@...el.com, james.morse@....com, rric@...nel.org
Cc:     linux-edac@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-imx@....com
Subject: [PATCH V2 1/2] EDAC: synopsys: Add disable_intr support for V3.X Synopsys EDAC DDR

V3.X Synopsys EDAC DDR doesn't have the QOS Interrupt register, need
to change to use the ECC Clear Register to disable the interrupts.

Signed-off-by: Sherry Sun <sherry.sun@....com>
Reviewed-by: Shubhrajyoti Datta <Shubhrajyoti.datta@...inx.com>
Acked-by: Michal Simek <michal.simek@...inx.com>
---
Changes in V2:
1. Add the Reviewed-by and Acked-by tag.
---
 drivers/edac/synopsys_edac.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/edac/synopsys_edac.c b/drivers/edac/synopsys_edac.c
index 40b1abeca856..88a481043d4c 100644
--- a/drivers/edac/synopsys_edac.c
+++ b/drivers/edac/synopsys_edac.c
@@ -865,8 +865,11 @@ static void enable_intr(struct synps_edac_priv *priv)
 static void disable_intr(struct synps_edac_priv *priv)
 {
 	/* Disable UE/CE Interrupts */
-	writel(DDR_QOSUE_MASK | DDR_QOSCE_MASK,
-			priv->baseaddr + DDR_QOS_IRQ_DB_OFST);
+	if (priv->p_data->quirks & DDR_ECC_INTR_SELF_CLEAR)
+		writel(0x0, priv->baseaddr + ECC_CLR_OFST);
+	else
+		writel(DDR_QOSUE_MASK | DDR_QOSCE_MASK,
+		       priv->baseaddr + DDR_QOS_IRQ_DB_OFST);
 }
 
 static int setup_irq(struct mem_ctl_info *mci,
-- 
2.17.1