From: Chris Packham <chris.packham@alliedtelesis.co.nz>
Date: Fri, 12 Jul 2019 04:46:53 +0000 (+0100)
Subject: ARM: 8886/1: l2x0: support parity-enable/disable on aurora
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=fd3bbde717b00a2db75d0c93264f412c1176008f;p=linux.git

ARM: 8886/1: l2x0: support parity-enable/disable on aurora

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

[jlu@pengutronix.de: use aurora specific define AURORA_ACR_PARITY_EN]

Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Signed-off-by: Jan Luebbe <jlu@pengutronix.de>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
---

diff --git a/arch/arm/mm/cache-l2x0.c b/arch/arm/mm/cache-l2x0.c
index 83b733a1f1e68..46a616ec6b0c4 100644
--- a/arch/arm/mm/cache-l2x0.c
+++ b/arch/arm/mm/cache-l2x0.c
@@ -1493,6 +1493,13 @@ 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;