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From: Chris Packham <chris.packham@alliedtelesis.co.nz>
To: linux@armlinux.org.uk, bp@alien8.de, arnd@arndb.de,
	jlu@pengutronix.de, gregory.clement@bootlin.com
Cc: linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org,
	linux-edac@vger.kernel.org, linux-kernel@vger.kernel.org,
	Chris Packham <chris.packham@alliedtelesis.co.nz>
Subject: [PATCH v6 4/9] ARM: l2x0: support parity-enable/disable on aurora
Date: Fri,  9 Nov 2018 20:03:44 +1300	[thread overview]
Message-ID: <20181109070349.20464-5-chris.packham@alliedtelesis.co.nz> (raw)
In-Reply-To: <20181109070349.20464-1-chris.packham@alliedtelesis.co.nz>

The aurora cache on the Marvell Armada-XP SoC supports the same tag
parity features as the other l2x0 cache implementations.

Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
[jlu@pengutronix.de: use aurora specific define AURORA_ACR_PARITY_EN]
Signed-off-by: Jan Luebbe <jlu@pengutronix.de>
---
 arch/arm/mm/cache-l2x0.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/arch/arm/mm/cache-l2x0.c b/arch/arm/mm/cache-l2x0.c
index 7d2d2a3c67d0..b70bee74750d 100644
--- a/arch/arm/mm/cache-l2x0.c
+++ b/arch/arm/mm/cache-l2x0.c
@@ -1505,6 +1505,13 @@ static void __init aurora_of_parse(const struct device_node *np,
 		mask |= AURORA_ACR_FORCE_WRITE_POLICY_MASK;
 	}
 
+	if (of_property_read_bool(np, "arm,parity-enable")) {
+		mask |= AURORA_ACR_PARITY_EN;
+		val |= AURORA_ACR_PARITY_EN;
+	} else if (of_property_read_bool(np, "arm,parity-disable")) {
+		mask |= AURORA_ACR_PARITY_EN;
+	}
+
 	*aux_val &= ~mask;
 	*aux_val |= val;
 	*aux_mask &= ~mask;
-- 
2.19.1

  parent reply	other threads:[~2018-11-09  7:04 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-11-09  7:03 [PATCH v6 0/9] EDAC drivers for Armada XP L2 and DDR Chris Packham
2018-11-09  7:03 ` [PATCH v6 1/9] ARM: l2c: move cache-aurora-l2.h to asm/hardware Chris Packham
2018-11-09  7:03 ` [PATCH v6 2/9] ARM: aurora-l2: add prefix to MAX_RANGE_SIZE Chris Packham
2018-11-09  7:03 ` [PATCH v6 3/9] ARM: aurora-l2: add defines for parity and ECC registers Chris Packham
2018-11-09  7:03 ` Chris Packham [this message]
2018-11-09  7:03 ` [PATCH v6 5/9] dt-bindings: ARM: document marvell,ecc-enable binding Chris Packham
2018-11-09 11:40   ` Arnd Bergmann
2018-11-09 11:48     ` Russell King - ARM Linux
2018-11-09 15:58       ` Arnd Bergmann
2018-11-11 19:57         ` Chris Packham
2018-11-11 22:35   ` Rob Herring
2018-11-09  7:03 ` [PATCH v6 6/9] ARM: l2x0: add marvell,ecc-enable property for aurora Chris Packham
2018-11-09  7:03 ` [PATCH v6 7/9] EDAC: Add missing debugfs_create_x32 wrapper Chris Packham
2018-11-09  7:03 ` [PATCH v6 8/9] EDAC: Add driver for the Marvell Armada XP SDRAM and L2 cache ECC Chris Packham
2018-11-11 19:40   ` Borislav Petkov
2018-11-09  7:03 ` [PATCH v6 9/9] EDAC: armada_xp: Add support for more SoCs Chris Packham

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