ARM: cygnus: Initial support for Broadcom Cygnus SoC

Adds initial support for the Cygnus SoC based on Broadcom’s iProc series.

Reviewed-by: Ray Jui <rjui@broadcom.com>
Reviewed-by: Desmond Liu <desmondl@broadcom.com>
Reviewed-by: JD (Jiandong) Zheng <jdzheng@broadcom.com>
Tested-by: Jonathan Richardson <jonathar@broadcom.com>
Signed-off-by: Scott Branden <sbranden@broadcom.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>

3 files changed, 60 insertions, 0 deletions

diff --git a/arch/arm/mach-bcm/Kconfig b/arch/arm/mach-bcm/Kconfig
index 2abad742516d..73d95c2b355b 100644
--- a/arch/arm/mach-bcm/Kconfig
+++ b/arch/arm/mach-bcm/Kconfig
@@ -5,6 +5,36 @@ menuconfig ARCH_BCM
 
 if ARCH_BCM
 
+comment "IPROC architected SoCs"
+
+config ARCH_BCM_IPROC
+        bool
+        select ARM_GIC
+        select CACHE_L2X0
+        select HAVE_ARM_SCU if SMP
+        select HAVE_ARM_TWD if SMP
+        select ARM_GLOBAL_TIMER
+
+        select CLKSRC_MMIO
+        select ARCH_REQUIRE_GPIOLIB
+        select ARM_AMBA
+        select PINCTRL
+        help
+          This enables support for systems based on Broadcom IPROC architected SoCs.
+          The IPROC complex contains one or more ARM CPUs along with common
+          core periperals. Application specific SoCs are created by adding a
+          uArchitecture containing peripherals outside of the IPROC complex.
+          Currently supported SoCs are Cygnus.
+
+config ARCH_BCM_CYGNUS
+        bool "Broadcom Cygnus Support" if ARCH_MULTI_V7
+        select ARCH_BCM_IPROC
+        help
+          Enable support for the Cygnus family,
+          which includes the following variants:
+          BCM11300, BCM11320, BCM11350, BCM11360,
+          BCM58300, BCM58302, BCM58303, BCM58305.
+
 config ARCH_BCM_MOBILE
         bool "Broadcom Mobile SoC Support" if ARCH_MULTI_V7
         select ARCH_REQUIRE_GPIOLIB
@@ -65,6 +95,8 @@ endmenu
 
 endif
 
+comment "Other Architectures"
+
 config ARCH_BCM2835
         bool "Broadcom BCM2835 family" if ARCH_MULTI_V6
         select ARCH_REQUIRE_GPIOLIB
diff --git a/arch/arm/mach-bcm/Makefile b/arch/arm/mach-bcm/Makefile
index 300ae4b79ae6..34d45ba2a4d1 100644
--- a/arch/arm/mach-bcm/Makefile
+++ b/arch/arm/mach-bcm/Makefile
@@ -10,6 +10,9 @@
 # of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 # GNU General Public License for more details.
 
+# Cygnus
+obj-$(CONFIG_ARCH_BCM_CYGNUS) +=  bcm_cygnus.o
+
 # BCM281XX
 obj-$(CONFIG_ARCH_BCM_281XX)    += board_bcm281xx.o
 
diff --git a/arch/arm/mach-bcm/bcm_cygnus.c b/arch/arm/mach-bcm/bcm_cygnus.c
new file mode 100644
index 000000000000..30dc58be51b8
--- /dev/null
+++ b/arch/arm/mach-bcm/bcm_cygnus.c
@@ -0,0 +1,25 @@
+/*
+ * Copyright (C) 2014 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_cygnus_dt_compat[] = {
+        "brcm,cygnus",
+        NULL,
+};
+
+DT_MACHINE_START(BCM_CYGNUS_DT, "Broadcom Cygnus SoC")
+        .l2c_aux_val    = 0,
+        .l2c_aux_mask   = ~0,
+        .dt_compat = bcm_cygnus_dt_compat,
+MACHINE_END