Patchwork [v6,6/9] ARM: l2x0: add marvell,ecc-enable property for aurora

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Submitter Chris Packham
Date Nov. 9, 2018, 7:03 a.m.
Message ID <20181109070349.20464-7-chris.packham@alliedtelesis.co.nz>
Download mbox | patch
Permalink /patch/653093/
State New
Headers show

Comments

Chris Packham - Nov. 9, 2018, 7:03 a.m.
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(+)

Patch

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;