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 6/9] ARM: l2x0: add marvell,ecc-enable property for aurora
Date: Fri, 9 Nov 2018 20:03:46 +1300 [thread overview]
Message-ID: <20181109070349.20464-7-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 ECC protection
for the L2 data arrays. Add a "marvell,ecc-enable" device tree property
which can be used to enable this.
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
[jlu@pengutronix.de: use aurora specific define AURORA_ACR_ECC_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 b70bee74750d..644f786e4fa9 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, "marvell,ecc-enable")) {
+ mask |= AURORA_ACR_ECC_EN;
+ val |= AURORA_ACR_ECC_EN;
+ } else if (of_property_read_bool(np, "marvell,ecc-disable")) {
+ mask |= AURORA_ACR_ECC_EN;
+ }
+
if (of_property_read_bool(np, "arm,parity-enable")) {
mask |= AURORA_ACR_PARITY_EN;
val |= AURORA_ACR_PARITY_EN;
--
2.19.1
next prev 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 ` [PATCH v6 4/9] ARM: l2x0: support parity-enable/disable on aurora Chris Packham
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 ` Chris Packham [this message]
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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