Merge branch 'mvebu/soc-3xx' into mvebu/soc

8 files changed, 133 insertions, 15 deletions

diff --git a/Documentation/arm/Marvell/README b/Documentation/arm/Marvell/README
index 5a930c1528ad..963ec445e15a 100644
--- a/Documentation/arm/Marvell/README
+++ b/Documentation/arm/Marvell/README
@@ -83,14 +83,24 @@ EBU Armada family
         88F6710
         88F6707
         88F6W11
+    Product Brief: http://www.marvell.com/embedded-processors/armada-300/assets/Marvell_ARMADA_370_SoC.pdf
+
+  Armada 375 Flavors:
+        88F6720
+    Product Brief: http://www.marvell.com/embedded-processors/armada-300/assets/ARMADA_375_SoC-01_product_brief.pdf
+
+  Armada 380/385 Flavors:
+        88F6810
+        88F6820
+        88F6828
 
   Armada XP Flavors:
         MV78230
         MV78260
         MV78460
     NOTE: not to be confused with the non-SMP 78xx0 SoCs
+    Product Brief: http://www.marvell.com/embedded-processors/armada-xp/assets/Marvell-ArmadaXP-SoC-product%20brief.pdf
 
-  Product Brief: http://www.marvell.com/embedded-processors/armada-xp/assets/Marvell-ArmadaXP-SoC-product%20brief.pdf
   No public datasheet available.
 
   Core: Sheeva ARMv7 compatible
diff --git a/Documentation/devicetree/bindings/arm/armada-375.txt b/Documentation/devicetree/bindings/arm/armada-375.txt
new file mode 100644
index 000000000000..867d0b80cb8f
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/armada-375.txt
@@ -0,0 +1,9 @@
+Marvell Armada 375 Platforms Device Tree Bindings
+-------------------------------------------------
+
+Boards with a SoC of the Marvell Armada 375 family shall have the
+following property:
+
+Required root node property:
+
+compatible: must contain "marvell,armada375"
diff --git a/Documentation/devicetree/bindings/arm/armada-38x.txt b/Documentation/devicetree/bindings/arm/armada-38x.txt
new file mode 100644
index 000000000000..11f2330a6554
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/armada-38x.txt
@@ -0,0 +1,10 @@
+Marvell Armada 38x Platforms Device Tree Bindings
+-------------------------------------------------
+
+Boards with a SoC of the Marvell Armada 38x family shall have the
+following property:
+
+Required root node property:
+
+ - compatible: must contain either "marvell,armada380" or
+   "marvell,armada385" depending on the variant of the SoC being used.
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/Kconfig b/arch/arm/mach-mvebu/Kconfig
index 1ba825ee3fe5..4b1eea09ae93 100644
--- a/arch/arm/mach-mvebu/Kconfig
+++ b/arch/arm/mach-mvebu/Kconfig
@@ -21,26 +21,55 @@ if ARCH_MVEBU
 
 menu "Marvell EBU SoC variants"
 
-config MACH_ARMADA_370_XP
+config MACH_MVEBU_V7
         bool
         select ARMADA_370_XP_TIMER
         select HAVE_SMP
         select CACHE_L2X0
-        select CPU_PJ4B
 
 config MACH_ARMADA_370
         bool "Marvell Armada 370 boards"
         select ARMADA_370_CLK
-        select MACH_ARMADA_370_XP
+        select CPU_PJ4B
+        select MACH_MVEBU_V7
         select PINCTRL_ARMADA_370
         help
           Say 'Y' here if you want your kernel to support boards based
           on the Marvell Armada 370 SoC with device tree.
 
+config MACH_ARMADA_375
+        bool "Marvell Armada 375 boards" if ARCH_MULTI_V7
+        select ARM_ERRATA_720789
+        select ARM_ERRATA_753970
+        select ARM_GIC
+        select ARMADA_375_CLK
+        select CPU_V7
+        select MACH_MVEBU_V7
+        select NEON
+        select PINCTRL_ARMADA_375
+        help
+          Say 'Y' here if you want your kernel to support boards based
+          on the Marvell Armada 375 SoC with device tree.
+
+config MACH_ARMADA_38X
+        bool "Marvell Armada 380/385 boards" if ARCH_MULTI_V7
+        select ARM_ERRATA_720789
+        select ARM_ERRATA_753970
+        select ARM_GIC
+        select ARMADA_38X_CLK
+        select CPU_V7
+        select MACH_MVEBU_V7
+        select NEON
+        select PINCTRL_ARMADA_38X
+        help
+          Say 'Y' here if you want your kernel to support boards based
+          on the Marvell Armada 380/385 SoC with device tree.
+
 config MACH_ARMADA_XP
         bool "Marvell Armada XP boards"
         select ARMADA_XP_CLK
-        select MACH_ARMADA_370_XP
+        select CPU_PJ4B
+        select MACH_MVEBU_V7
         select PINCTRL_ARMADA_XP
         help
           Say 'Y' here if you want your kernel to support boards based
diff --git a/arch/arm/mach-mvebu/Makefile b/arch/arm/mach-mvebu/Makefile
index d99846103bbb..2c1db29db2ca 100644
--- a/arch/arm/mach-mvebu/Makefile
+++ b/arch/arm/mach-mvebu/Makefile
@@ -3,7 +3,8 @@ ccflags-$(CONFIG_ARCH_MULTIPLATFORM) := -I$(srctree)/$(src)/include \
 
 AFLAGS_coherency_ll.o           := -Wa,-march=armv7-a
 
-obj-y                            += coherency.o coherency_ll.o pmsu.o system-controller.o mvebu-soc-id.o
-obj-$(CONFIG_MACH_ARMADA_370_XP) += armada-370-xp.o
+obj-y                            += system-controller.o mvebu-soc-id.o
+obj-$(CONFIG_MACH_MVEBU_V7)      += board-v7.o
+obj-$(CONFIG_ARCH_MVEBU)         += coherency.o coherency_ll.o pmsu.o
 obj-$(CONFIG_SMP)                += platsmp.o headsmp.o
 obj-$(CONFIG_HOTPLUG_CPU)        += hotplug.o
diff --git a/arch/arm/mach-mvebu/armada-370-xp.c b/arch/arm/mach-mvebu/board-v7.c
index 161cf2f54220..746134ecdfc2 100644
--- a/arch/arm/mach-mvebu/armada-370-xp.c
+++ b/arch/arm/mach-mvebu/board-v7.c
@@ -31,7 +31,28 @@
 #include "coherency.h"
 #include "mvebu-soc-id.h"
 
-static void __init armada_370_xp_timer_and_clk_init(void)
+/*
+ * Early versions of Armada 375 SoC have a bug where the BootROM
+ * leaves an external data abort pending. The kernel is hit by this
+ * data abort as soon as it enters userspace, because it unmasks the
+ * data aborts at this moment. We register a custom abort handler
+ * below to ignore the first data abort to work around this
+ * problem.
+ */
+static int armada_375_external_abort_wa(unsigned long addr, unsigned int fsr,
+                                        struct pt_regs *regs)
+{
+        static int ignore_first;
+
+        if (!ignore_first && fsr == 0x1406) {
+                ignore_first = 1;
+                return 0;
+        }
+
+        return 1;
+}
+
+static void __init mvebu_timer_and_clk_init(void)
 {
         of_clk_init(NULL);
         clocksource_of_init();
@@ -40,6 +61,10 @@ static void __init armada_370_xp_timer_and_clk_init(void)
 #ifdef CONFIG_CACHE_L2X0
         l2x0_of_init(0, ~0UL);
 #endif
+
+        if (of_machine_is_compatible("marvell,armada375"))
+                hook_fault_code(16 + 6, armada_375_external_abort_wa, SIGBUS, 0,
+                                "imprecise external abort");
 }
 
 static void __init i2c_quirk(void)
@@ -70,7 +95,7 @@ static void __init i2c_quirk(void)
         return;
 }
 
-static void __init armada_370_xp_dt_init(void)
+static void __init mvebu_dt_init(void)
 {
         if (of_machine_is_compatible("plathome,openblocks-ax3-4"))
                 i2c_quirk();
@@ -82,10 +107,33 @@ static const char * const armada_370_xp_dt_compat[] = {
         NULL,
 };
 
-DT_MACHINE_START(ARMADA_XP_DT, "Marvell Armada 370/XP (Device Tree)")
+DT_MACHINE_START(ARMADA_370_XP_DT, "Marvell Armada 370/XP (Device Tree)")
         .smp            = smp_ops(armada_xp_smp_ops),
-        .init_machine   = armada_370_xp_dt_init,
-        .init_time      = armada_370_xp_timer_and_clk_init,
+        .init_machine   = mvebu_dt_init,
+        .init_time      = mvebu_timer_and_clk_init,
         .restart        = mvebu_restart,
         .dt_compat      = armada_370_xp_dt_compat,
 MACHINE_END
+
+static const char * const armada_375_dt_compat[] = {
+        "marvell,armada375",
+        NULL,
+};
+
+DT_MACHINE_START(ARMADA_375_DT, "Marvell Armada 375 (Device Tree)")
+        .init_time      = mvebu_timer_and_clk_init,
+        .restart        = mvebu_restart,
+        .dt_compat      = armada_375_dt_compat,
+MACHINE_END
+
+static const char * const armada_38x_dt_compat[] = {
+        "marvell,armada380",
+        "marvell,armada385",
+        NULL,
+};
+
+DT_MACHINE_START(ARMADA_38X_DT, "Marvell Armada 380/385 (Device Tree)")
+        .init_time      = mvebu_timer_and_clk_init,
+        .restart        = mvebu_restart,
+        .dt_compat      = armada_38x_dt_compat,
+MACHINE_END
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 */ },
 };