ARM: NSP: Add basic support for Broadcom Northstar Plus SoC

Broadcom Northstar Plus family of SoCs are used for switching
control and management applications as well as residential
router/gateway applications. The SoC features dual core Cortex
A9 ARM CPUs, integrating several peripheral interfaces including
multiple Gigabit Ethernet PHYs, DDR3 memory, PCIE Gen-2, USB 2.0
and USB 3.0, serial and NAND flash, SATA and several other IO
controllers.

Signed-off-by: Kapil Hali <kapilh@broadcom.com>
Signed-off-by: Jon Mason <jonmason@broadcom.com>
Acked-by: Scott Branden <sbranden@broadcom.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>

3 files changed, 43 insertions, 1 deletions

diff --git a/arch/arm/mach-bcm/Kconfig b/arch/arm/mach-bcm/Kconfig
index 1319c3c14327..1679fa4fb700 100644
--- a/arch/arm/mach-bcm/Kconfig
+++ b/arch/arm/mach-bcm/Kconfig
@@ -35,6 +35,20 @@ config ARCH_BCM_CYGNUS
           BCM11300, BCM11320, BCM11350, BCM11360,
           BCM58300, BCM58302, BCM58303, BCM58305.
 
+config ARCH_BCM_NSP
+        bool "Broadcom Northstar Plus SoC Support" if ARCH_MULTI_V7
+        select ARCH_BCM_IPROC
+        select ARM_ERRATA_754322
+        select ARM_ERRATA_775420
+        help
+          Support for Broadcom Northstar Plus SoC.
+          Broadcom Northstar Plus family of SoCs are used for switching control
+          and management applications as well as residential router/gateway
+          applications. The SoC features dual core Cortex A9 ARM CPUs,
+          integrating several peripheral interfaces including multiple Gigabit
+          Ethernet PHYs, DDR3 memory, PCIE Gen-2, USB 2.0 and USB 3.0, serial and
+          NAND flash, SATA and several other IO controllers.
+
 config ARCH_BCM_5301X
         bool "Broadcom BCM470X / BCM5301X ARM SoC" if ARCH_MULTI_V7
         select ARCH_BCM_IPROC
diff --git a/arch/arm/mach-bcm/Makefile b/arch/arm/mach-bcm/Makefile
index 1780a3ff42f9..892261fec0ae 100644
--- a/arch/arm/mach-bcm/Makefile
+++ b/arch/arm/mach-bcm/Makefile
@@ -1,5 +1,5 @@
 #
-# Copyright (C) 2012-2014 Broadcom Corporation
+# Copyright (C) 2012-2015 Broadcom Corporation
 #
 # This program is free software; you can redistribute it and/or
 # modify it under the terms of the GNU General Public License as
@@ -13,6 +13,9 @@
 # Cygnus
 obj-$(CONFIG_ARCH_BCM_CYGNUS) +=  bcm_cygnus.o
 
+# Northstar Plus
+obj-$(CONFIG_ARCH_BCM_NSP) += bcm_nsp.o
+
 # BCM281XX
 obj-$(CONFIG_ARCH_BCM_281XX)    += board_bcm281xx.o
 
diff --git a/arch/arm/mach-bcm/bcm_nsp.c b/arch/arm/mach-bcm/bcm_nsp.c
new file mode 100644
index 000000000000..a1101a3d318e
--- /dev/null
+++ b/arch/arm/mach-bcm/bcm_nsp.c
@@ -0,0 +1,25 @@
+/*
+ * Copyright (C) 2015 Broadcom Corporation
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation version 2.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any
+ * kind, whether express or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <asm/mach/arch.h>
+
+static const char *const bcm_nsp_dt_compat[] __initconst = {
+        "brcm,nsp",
+        NULL,
+};
+
+DT_MACHINE_START(NSP_DT, "Broadcom Northstar Plus SoC")
+        .l2c_aux_val    = 0,
+        .l2c_aux_mask   = ~0,
+        .dt_compat = bcm_nsp_dt_compat,
+MACHINE_END