[PATCH v8 6/9] ARM: l2x0: add marvell,ecc-enable property for aurora

From: Chris Packham
Date: Fri May 10 2019 - 06:17:48 EST


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@xxxxxxxxxxxxxxxxxxx>
[jlu@xxxxxxxxxxxxxx: use aurora specific define AURORA_ACR_ECC_EN]
Signed-off-by: Jan Luebbe <jlu@xxxxxxxxxxxxxx>
---

Notes:
Changes in v7:
- remove marvell,ecc-disable

arch/arm/mm/cache-l2x0.c | 5 +++++
1 file changed, 5 insertions(+)

diff --git a/arch/arm/mm/cache-l2x0.c b/arch/arm/mm/cache-l2x0.c
index b70bee74750d..e5380f7b14a5 100644
--- a/arch/arm/mm/cache-l2x0.c
+++ b/arch/arm/mm/cache-l2x0.c
@@ -1505,6 +1505,11 @@ 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;
--
2.21.0