ARM: mvebu: add Armada 375 support to the system-controller driver

The system controller block in the Armada 375 has different register
offsets for the system reset and other related functions. Therefore,
this commit introduces the new "armada-375-system-controller"
compatible string to identify the Armada 375 variant of the system
controller.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Reviewed-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>

2 files changed, 14 insertions, 3 deletions

diff --git a/Documentation/devicetree/bindings/arm/mvebu-system-controller.txt b/Documentation/devicetree/bindings/arm/mvebu-system-controller.txt
index 081c6a786c8a..d24ab2ebf8a7 100644
--- a/Documentation/devicetree/bindings/arm/mvebu-system-controller.txt
+++ b/Documentation/devicetree/bindings/arm/mvebu-system-controller.txt
@@ -1,12 +1,13 @@
 MVEBU System Controller
 -----------------------
-MVEBU (Marvell SOCs: Armada 370/XP, Dove, mv78xx0, Kirkwood, Orion5x)
+MVEBU (Marvell SOCs: Armada 370/375/XP, Dove, mv78xx0, Kirkwood, Orion5x)
 
 Required properties:
 
 - compatible: one of:
         - "marvell,orion-system-controller"
         - "marvell,armada-370-xp-system-controller"
+        - "marvell,armada-375-system-controller"
 - reg: Should contain system controller registers location and length.
 
 Example:
diff --git a/arch/arm/mach-mvebu/system-controller.c b/arch/arm/mach-mvebu/system-controller.c
index e6e300afe836..614ba6832ff3 100644
--- a/arch/arm/mach-mvebu/system-controller.c
+++ b/arch/arm/mach-mvebu/system-controller.c
@@ -1,5 +1,5 @@
 /*
- * System controller support for Armada 370 and XP platforms.
+ * System controller support for Armada 370, 375 and XP platforms.
  *
  * Copyright (C) 2012 Marvell
  *
@@ -11,7 +11,7 @@
  * License version 2.  This program is licensed "as is" without any
  * warranty of any kind, whether express or implied.
  *
- * The Armada 370 and Armada XP SoCs both have a range of
+ * The Armada 370, 375 and Armada XP SoCs have a range of
  * miscellaneous registers, that do not belong to a particular device,
  * but rather provide system-level features. This basic
  * system-controller driver provides a device tree binding for those
@@ -47,6 +47,13 @@ static const struct mvebu_system_controller armada_370_xp_system_controller = {
         .system_soft_reset = 0x1,
 };
 
+static const struct mvebu_system_controller armada_375_system_controller = {
+        .rstoutn_mask_offset = 0x54,
+        .system_soft_reset_offset = 0x58,
+        .rstoutn_mask_reset_out_en = 0x1,
+        .system_soft_reset = 0x1,
+};
+
 static const struct mvebu_system_controller orion_system_controller = {
         .rstoutn_mask_offset = 0x108,
         .system_soft_reset_offset = 0x10c,
@@ -61,6 +68,9 @@ static const struct of_device_id of_system_controller_table[] = {
         }, {
                 .compatible = "marvell,armada-370-xp-system-controller",
                 .data = (void *) &armada_370_xp_system_controller,
+        }, {
+                .compatible = "marvell,armada-375-system-controller",
+                .data = (void *) &armada_375_system_controller,
         },
         { /* end of list */ },
 };