linux-kernel - [PATCH 04/20] EDAC/synopsys: Drop erroneous ADDRMAP4.addrmap_col

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Message-ID: <20220822190730.27277-5-Sergey.Semin@baikalelectronics.ru>
Date:   Mon, 22 Aug 2022 22:07:14 +0300
From:   Serge Semin <Sergey.Semin@...kalelectronics.ru>
To:     Rob Herring <robh@...nel.org>,
        Michal Simek <michal.simek@...inx.com>,
        Borislav Petkov <bp@...en8.de>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Tony Luck <tony.luck@...el.com>,
        James Morse <james.morse@....com>,
        Robert Richter <rric@...nel.org>,
        Manish Narani <manish.narani@...inx.com>
CC:     Serge Semin <Sergey.Semin@...kalelectronics.ru>,
        Serge Semin <fancer.lancer@...il.com>,
        Alexey Malahov <Alexey.Malahov@...kalelectronics.ru>,
        Michail Ivanov <Michail.Ivanov@...kalelectronics.ru>,
        Pavel Parkhomenko <Pavel.Parkhomenko@...kalelectronics.ru>,
        Punnaiah Choudary Kalluri 
        <punnaiah.choudary.kalluri@...inx.com>,
        Dinh Nguyen <dinguyen@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        <devicetree@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-edac@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        Borislav Petkov <bp@...e.de>
Subject: [PATCH 04/20] EDAC/synopsys: Drop erroneous ADDRMAP4.addrmap_col_b10 parse

Currently the ADDRMAP4.addrmap_col_b10 field gets to be parsed in case of
the LPDDR3 memory and Quarter DQ bus width mode. It's wrong since that
field is marked as unused for that mode in all the available DW uMCTL2
DDRC releases (up to IP-core v3.91a). Most likely the field parsing has
been added by mistake as a result of the copy-paste from the Half DW bus
width mode part of the same function. Drop it from the driver for good
then.

Fixes: 1a81361f75d8 ("EDAC, synopsys: Add Error Injection support for ZynqMP DDR controller")
Signed-off-by: Serge Semin <Sergey.Semin@...kalelectronics.ru>
---
 drivers/edac/synopsys_edac.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/edac/synopsys_edac.c b/drivers/edac/synopsys_edac.c
index b9b68f3ecf52..873dbc684fe6 100644
--- a/drivers/edac/synopsys_edac.c
+++ b/drivers/edac/synopsys_edac.c
@@ -1238,10 +1238,6 @@ static void setup_column_address_map(struct synps_edac_priv *priv, u32 *addrmap)
 				COL_MAX_VAL_MASK) == COL_MAX_VAL_MASK) ? 0 :
 				(((addrmap[3] >> 24) & COL_MAX_VAL_MASK) +
 				 COL_B9_BASE);
-			priv->col_shift[13] = ((addrmap[4] &
-				COL_MAX_VAL_MASK) == COL_MAX_VAL_MASK) ? 0 :
-				((addrmap[4] & COL_MAX_VAL_MASK) +
-				 COL_B10_BASE);
 		} else {
 			priv->col_shift[11] = (((addrmap[3] >> 16) &
 				COL_MAX_VAL_MASK) == COL_MAX_VAL_MASK) ? 0 :
-- 
2.35.1