ARM: mvebu: add initial support for the Armada 375 SOCs

This commit adds the basic support for the Armada 375 SOCs. These SoCs
share most of their IP with the Armada 370/XP SoCs. The main
difference is the use of a Cortex A9 CPU instead of the PJ4B CPU. The
interrupt controller and the L2 cache controller are also different
they are respectively the GIC and the PL310.

The support is introduced in board-v7.c, together with Armada 370/XP,
but a separate DT structure is added, because Armada 375 will need a
different set of SMP operations when the SMP support is introduced.

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

diff --git a/Documentation/devicetree/bindings/arm/armada-375.txt b/Documentation/devicetree/bindings/arm/armada-375.txt
new file mode 100644 (file)
index 0000000..867d0b8
--- /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/arch/arm/mach-mvebu/Kconfig b/arch/arm/mach-mvebu/Kconfig
index d9d32aa077f89917f1d2f4ca68d784355538f25d..3b74a8450947541a2faa6fee52cb1d6185e1178f 100644 (file)
--- a/arch/arm/mach-mvebu/Kconfig
+++ b/arch/arm/mach-mvebu/Kconfig
@@ -37,6 +37,20 @@ config MACH_ARMADA_370
          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"
+       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_XP
        bool "Marvell Armada XP boards"
        select ARMADA_XP_CLK

diff --git a/arch/arm/mach-mvebu/board-v7.c b/arch/arm/mach-mvebu/board-v7.c
index fa6fa2821f249ad1d7991ce8a2ec7fe2b2b1e2f3..a6234bfc1d69f5a4cd4e34db00957194418c3923 100644 (file)
--- a/arch/arm/mach-mvebu/board-v7.c
+++ b/arch/arm/mach-mvebu/board-v7.c
@@ -89,3 +89,14 @@ DT_MACHINE_START(ARMADA_370_XP_DT, "Marvell Armada 370/XP (Device Tree)")
        .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