Merge tag 'for-3.17/bcm-soc' of git://github.com/broadcom/mach-bcm in…

…to next/soc

Merge "ARM: mach-bcm: soc updates for 3.17" from Matt Porter:

- BCM Mobile SMP support
- BRCM STB platform support

* tag 'for-3.17/bcm-soc' of git://github.com/broadcom/mach-bcm:
  MAINTAINERS: add entry for Broadcom ARM STB architecture
  ARM: brcmstb: select GISB arbiter and interrupt drivers
  ARM: brcmstb: add infrastructure for ARM-based Broadcom STB SoCs
  ARM: configs: enable SMP in bcm_defconfig
  ARM: add SMP support for Broadcom mobile SoCs

Signed-off-by: Arnd Bergmann <arnd@arndb.de>

MAINTAINERS

@@ -1978,6 +1978,14 @@ F:	arch/arm/mach-bcm/bcm_5301x.c
 F:	arch/arm/boot/dts/bcm5301x.dtsi
 F:	arch/arm/boot/dts/bcm470*
 
+BROADCOM BCM7XXX ARM ARCHITECTURE
+M:	Marc Carino <marc.ceeeee@gmail.com>
+M:	Brian Norris <computersforpeace@gmail.com>
+L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
+S:	Maintained
+F:	arch/arm/mach-bcm/*brcmstb*
+F:	arch/arm/boot/dts/bcm7*.dts*
+
 BROADCOM TG3 GIGABIT ETHERNET DRIVER
 M:	Nithin Nayak Sujir <nsujir@broadcom.com>
 M:	Michael Chan <mchan@broadcom.com>

arch/arm/configs/bcm_defconfig

@@ -27,6 +27,7 @@ CONFIG_PARTITION_ADVANCED=y
 CONFIG_ARCH_BCM=y
 CONFIG_ARCH_BCM_MOBILE=y
 CONFIG_ARM_THUMBEE=y
+CONFIG_SMP=y
 CONFIG_PREEMPT=y
 CONFIG_AEABI=y
 # CONFIG_COMPACTION is not set

arch/arm/configs/multi_v7_defconfig

@@ -19,6 +19,7 @@ CONFIG_MACH_DOVE=y
 CONFIG_ARCH_BCM=y
 CONFIG_ARCH_BCM_MOBILE=y
 CONFIG_ARCH_BCM_5301X=y
+CONFIG_ARCH_BRCMSTB=y
 CONFIG_ARCH_BERLIN=y
 CONFIG_MACH_BERLIN_BG2=y
 CONFIG_MACH_BERLIN_BG2CD=y

arch/arm/mach-bcm/Kconfig

@@ -9,7 +9,6 @@ config ARCH_BCM_MOBILE
 	bool "Broadcom Mobile SoC Support" if ARCH_MULTI_V7
 	select ARCH_REQUIRE_GPIOLIB
 	select ARM_ERRATA_754322
-	select ARM_ERRATA_764369 if SMP
 	select ARM_ERRATA_775420
 	select ARM_GIC
 	select GPIO_BCM_KONA
@@ -26,16 +25,18 @@ menu "Broadcom Mobile SoC Selection"
 config ARCH_BCM_281XX
 	bool "Broadcom BCM281XX SoC family"
 	default y
+	select HAVE_SMP
 	help
-	  Enable support for the the BCM281XX family, which includes
+	  Enable support for the BCM281XX family, which includes
 	  BCM11130, BCM11140, BCM11351, BCM28145 and BCM28155
 	  variants.
 
 config ARCH_BCM_21664
 	bool "Broadcom BCM21664 SoC family"
 	default y
+	select HAVE_SMP
 	help
-	  Enable support for the the BCM21664 family, which includes
+	  Enable support for the BCM21664 family, which includes
 	  BCM21663 and BCM21664 variants.
 
 config ARCH_BCM_MOBILE_L2_CACHE
@@ -49,6 +50,17 @@ config ARCH_BCM_MOBILE_SMC
 	bool
 	depends on ARCH_BCM_281XX || ARCH_BCM_21664
 
+config ARCH_BCM_MOBILE_SMP
+	bool "Broadcom mobile SoC SMP support"
+	depends on (ARCH_BCM_281XX || ARCH_BCM_21664) && SMP
+	default y
+	select HAVE_ARM_SCU
+	select ARM_ERRATA_764369
+	help
+	  SMP support for the BCM281XX and BCM21664 SoC families.
+	  Provided as an option so SMP support for SoCs of this type
+	  can be disabled for an SMP-enabled kernel.
+
 endmenu
 
 endif
@@ -87,4 +99,20 @@ config ARCH_BCM_5301X
 	  different SoC or with the older BCM47XX and BCM53XX based
 	  network SoC using a MIPS CPU, they are supported by arch/mips/bcm47xx
 
+config ARCH_BRCMSTB
+	bool "Broadcom BCM7XXX based boards" if ARCH_MULTI_V7
+	depends on MMU
+	select ARM_GIC
+	select MIGHT_HAVE_PCI
+	select HAVE_SMP
+	select HAVE_ARM_ARCH_TIMER
+	select BRCMSTB_GISB_ARB
+	select BRCMSTB_L2_IRQ
+	help
+	  Say Y if you intend to run the kernel on a Broadcom ARM-based STB
+	  chipset.
+
+	  This enables support for Broadcom ARM-based set-top box chipsets,
+	  including the 7445 family of chips.
+
 endif

arch/arm/mach-bcm/Makefile

@@ -16,6 +16,9 @@ obj-$(CONFIG_ARCH_BCM_281XX)	+= board_bcm281xx.o
 # BCM21664
 obj-$(CONFIG_ARCH_BCM_21664)	+= board_bcm21664.o
 
+# BCM281XX and BCM21664 SMP support
+obj-$(CONFIG_ARCH_BCM_MOBILE_SMP) += kona_smp.o
+
 # BCM281XX and BCM21664 L2 cache control
 obj-$(CONFIG_ARCH_BCM_MOBILE_L2_CACHE) += kona_l2_cache.o
 
@@ -30,3 +33,8 @@ obj-$(CONFIG_ARCH_BCM2835)	+= board_bcm2835.o
 
 # BCM5301X
 obj-$(CONFIG_ARCH_BCM_5301X)	+= bcm_5301x.o
+
+ifeq ($(CONFIG_ARCH_BRCMSTB),y)
+obj-y				+= brcmstb.o
+obj-$(CONFIG_SMP)		+= headsmp-brcmstb.o platsmp-brcmstb.o
+endif

arch/arm/mach-bcm/brcmstb.c

@@ -0,0 +1,28 @@
+/*
+ * Copyright (C) 2013-2014 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 <linux/init.h>
+#include <linux/of_platform.h>
+
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+
+static const char *brcmstb_match[] __initconst = {
+	"brcm,bcm7445",
+	"brcm,brcmstb",
+	NULL
+};
+
+DT_MACHINE_START(BRCMSTB, "Broadcom STB (Flattened Device Tree)")
+	.dt_compat	= brcmstb_match,
+MACHINE_END

arch/arm/mach-bcm/brcmstb.h

@@ -0,0 +1,19 @@
+/*
+ * Copyright (C) 2013-2014 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.
+ */
+
+#ifndef __BRCMSTB_H__
+#define __BRCMSTB_H__
+
+void brcmstb_secondary_startup(void);
+
+#endif /* __BRCMSTB_H__ */

arch/arm/mach-bcm/headsmp-brcmstb.S

@@ -0,0 +1,33 @@
+/*
+ * SMP boot code for secondary CPUs
+ * Based on arch/arm/mach-tegra/headsmp.S
+ *
+ * Copyright (C) 2010 NVIDIA, Inc.
+ * Copyright (C) 2013-2014 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/assembler.h>
+#include <linux/linkage.h>
+#include <linux/init.h>
+
+        .section ".text.head", "ax"
+
+ENTRY(brcmstb_secondary_startup)
+        /*
+         * Ensure CPU is in a sane state by disabling all IRQs and switching
+         * into SVC mode.
+         */
+        setmode	PSR_I_BIT | PSR_F_BIT | SVC_MODE, r0
+
+        bl      v7_invalidate_l1
+        b       secondary_startup
+ENDPROC(brcmstb_secondary_startup)