ARM: 8890/1: l2x0: add marvell,ecc-enable property for aurora

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.

[jlu@pengutronix.de: use aurora specific define AURORA_ACR_ECC_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 46a616ec6b0c419230caa40f702bdb566821fd8c..12c26eb88afbca63868f7f3161653e4050cb4530 100644 (file)
--- a/arch/arm/mm/cache-l2x0.c
+++ b/arch/arm/mm/cache-l2x0.c
@@ -1493,6 +1493,11 @@ 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;
+       }
+
        if (of_property_read_bool(np, "arm,parity-enable")) {
                mask |= AURORA_ACR_PARITY_EN;
                val |= AURORA_ACR_PARITY_EN;