This patch adds support for the BCM5301X/BCM470X SoCs with an ARM CPUs.
Currently just booting to a shell is working and nothing else, no
Ethernet, wifi, flash, ...
I have some pending patches to make Ethernet work for this device.
Mostly device tree support for bcma is missing.

This SoC is used in small office and home router with Broadcom SoCs
it's internal name is Northstar. This code should support the BCM4707,
BCM4708, BCM4709, BCM53010, BCM53011 and BCM53012 SoC. It uses one or
two ARM Cortex A9 Cores, some highlights are 2 PCIe 2.0 controllers,
4 Gigabit Ethernet MACs and a USB 3.0 host controller.

This SoC uses a dual core CPU, but this is currently not implemented.
More information about this SoC can be found here:
http://www.anandtech.com/show/5925/broadcom-announces-bcm4708x-and-bcm5301x-socs-for-80211ac-routersSigned-off-by: NHauke Mehrtens <hauke@hauke-m.de>
Acked-by: NArnd Bergmann <arnd@arndb.de>
Acked-by: NChristian Daudt <bcm@fixthebug.org>
Signed-off-by: NMatt Porter <mporter@linaro.org>

The symbol is an orphan, get rid of it.
Signed-off-by: NRichard Weinberger <richard@nod.at>
Signed-off-by: NAlexander Shiyan <shc_work@mail.ru>
Signed-off-by: NPaul Bolle <pebolle@tiscali.nl>
Signed-off-by: NChristian Daudt <bcm@fixthebug.org>
Signed-off-by: NMatt Porter <mporter@linaro.org>

Adds pinctrl driver for Broadcom Capri (BCM281xx) SoCs.

v4: - PINCTRL selected in Kconfig, PINCTRL_CAPRI selected in bcm_defconfig
    - make use of regmap
    - change CAPRI_PIN_UPDATE from macro to inline function.
    - Handle pull-up strength arg in Ohm instead of enum
v3: Re-work driver to be based on generic pin config. Moved config selection
    from Kconfig to bcm_defconfig.
v2: Use hyphens instead of underscore in DT property names.
Signed-off-by: NSherman Yin <syin@broadcom.com>
Reviewed-by: NChristian Daudt <bcm@fixthebug.org>
Reviewed-by: NMatt Porter <matt.porter@linaro.org>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

Add HAVE_ARM_ARCH_TIMER to Broadcom Kconfig as it is
required for some Mobile SoCs.
Signed-off-by: NChristian Daudt <bcm@fixthebug.org>
Reviewed-by: NMarkus Mayer <mmayer@broadcom.com>
Reviewed-by: NMark Hambleton <mahamble@broadcom.com>
Reviewed-by: NJames King <jamesk@broadcom.com>

Currently ARCH_BCM has been used for Broadcom
Mobile V7 based SoCs. In order to allow other Broadcom
SoCs to also use mach-bcm directory and files, this patch
renames the original ARCH_BCM to ARCH_BCM_MOBILE, and
uses ARCH_BCM to define any Broadcom chip residing
in mach-bcm directory.
Signed-off-by: NChristian Daudt <bcm@fixthebug.org>
Acked-by: NOlof Johansson <olof@lixom.net>

Changes from v2:
 - switch ARCH_MULTIPLATFORM from select to depends
 - remove 'default y' from BCM_MOBILE

Changes from v1:
 - fix alpha ordering in dts/Makefile
 - break into 4 patches for separate subsys

Add SoC model to DT_MACHINE_START string.
Signed-off-by: NChristian Daudt <bcm@fixthebug.org>
Reviewed-by: NMarkus Mayer <mmayer@broadcom.com>
Reviewed-by: NMark Hambleton <mahamble@broadcom.com>
Reviewed-by: NJames King <jamesk@broadcom.com>

Turn on the bcm281xx GPIO driver in the kernel configuration.
Signed-off-by: NMarkus Mayer <markus.mayer@linaro.org>
Reviewed-by: NChristian Daudt <csd@broadcom.com>

With arch/arm calling of_clk_init(NULL) and clocksource_of_init()
this is no longer needed. The former is useful because we can make
use of dummy fixed clocks for drivers until the bcm281xx common
clock driver is ready.
Signed-off-by: NMatt Porter <matt.porter@linaro.org>
Reviewed-by: NMarkus Mayer <markus.mayer@linaro.org>
Acked-by: NChristian Daudt <csd@broadcom.com>

The current bcm_kona_smc_init function throws a BUG_ON if there's no SMC
device node defined in the device tree.

Since secure API access is optional depending the chip configuration,
fix this by allowing the rest of the code to run even if there's no SMC
device node defined
Signed-off-by: NChristian Daudt <csd@broadcom.com>
Reviewed-by: NMarkus Mayer <markus.mayer@linaro.org>

[ this is a follow-up to this discussion:
http://archive.arm.linux.org.uk/lurker/message/20130730.230827.a1ceb12a.en.html ]
This patchset renames all uses of "bcm," name bindings to
"brcm," as they were done prior to knowing that brcm had
already been standardized as Broadcom vendor prefix
(in Documentation/devicetree/bindings/vendor-prefixes.txt).
This will not cause any churn on devices because none of
these bindings have made it into production yet.
Signed-off-by: NChristian Daudt <csd@broadcom.com>
Acked-by: NStephen Warren <swarren@nvidia.com>

In order to support multiple SoC models in the mach-bcm
directory, board_bcm.c is being renamed board_bcm281xx.c
Reviewed-by: NMarkus Mayer <markus.mayer@linaro.org>
Signed-off-by: NChristian Daudt <csd@broadcom.com>

This patch adds the code needed to trigger a reboot on the bcm281xx
family.
Signed-off-by: NMarkus Mayer <markus.mayer@linaro.org>
Reviewed-by: NTim Kryger <tim.kryger@linaro.org>
Reviewed-by: NMatt Porter <matt.porter@linaro.org>
Reviewed-by: NAlex Elder <alex.elder@linaro.org>
Acked-by: NChristian Daudt <csd@broadcom.com>

Turning on the L2 cache for the bcm281xx family.
Signed-off-by: NMarkus Mayer <markus.mayer@linaro.org>
Acked-by: NChristian Daudt <csd@broadcom.com>

Commit ebafed7a ("ARM: irq: Call irqchip_init if no init_irq function is
specified") removed the need to explictly setup the init_irq field in
the machine description when using only irqchip_init. Remove that
declaration for bcm281xx as well.
Signed-off-by: NMaxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: NChristian Daudt <csd@broadcom.com>

The bcm_kona_smc_init function references the bcm_kona_smc_ids variable
that is marked __initconst, so the function itself has to be __init
to avoid this build error:

WARNING: arch/arm/mach-bcm/built-in.o(.text+0x12c): Section mismatch in reference from the function bcm_kona_smc_init() to the (unknown reference) .init.rodata:(unknown)
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Cc: Christian Daudt <csd@broadcom.com>

- Adds a module to provide calls into secure monitor mode
- Uses this module to make secure monitor calls to enable L2 cache.

Updates from V1:
- Split DT portion into separate patch
- replace #ifdef-ed L2 code with "if".
- move init call to board init
Signed-off-by: NChristian Daudt <csd@broadcom.com>
Acked-by: NArnd Bergmann <arnd@arndb.de>

This adds support for the Broadcom timer, used in the following SoCs:
BCM11130, BCM11140, BCM11351, BCM28145, BCM28155

Updates from V6:
- Split DT portion into a separate patch

Updates from V5:
- Rebase to latest arm-soc/for-next

Updates from V4:
- Switch code to use CLOCKSOURCE_OF_DECLARE

Updates from V3:
- Migrate to 3.9 timer framework updates

Updates from V2:
- prepend static fns + fields with kona_

Updates from V1:
- Rename bcm_timer.c to bcm_kona_timer.c
- Pull .h into bcm_kona_timer.c
- Make timers static
- Clean up comment block
- Switched to using clockevents_config_and_register
- Added an error to the get_timer loop if it repeats too much
- Added to Documentation/devicetree/bindings/arm/bcm/bcm,kona-timer.txt
- Added missing readl to timer_disable_and_clear

Note: bcm,kona-timer was kept as the 'compatible' field to make it
specific enough for when there are multiple bcm timers (bcm,timer is
too generic).
Signed-off-by: NChristian Daudt <csd@broadcom.com>
Acked-by: NArnd Bergmann <arnd@arndb.de>
Acked-by: NJohn Stultz <john.stultz@linaro.org>
Reviewed-by: NStephen Warren <swarren@nvidia.com>
Signed-off-by: NJohn Stultz <john.stultz@linaro.org>

In drivers/gpio/Kcong, ARCH_REQUIRE_GPIOLIB selects GPIOLIB which in
turn selects GENERIC_GPIO.  So GENERIC_GPIO will be selected
automatically for those platforms that select ARCH_REQUIRE_GPIOLIB.

Remove the redundant 'select GENERIC_GPIO' for platforms that already
select ARCH_REQUIRE_GPIOLIB at either mach or plat level.
Signed-off-by: NShawn Guo <shawn.guo@linaro.org>
Acked-by: NLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: NOlof Johansson <olof@lixom.net>

Convert all GIC DT initialization over to use common irqchip_init
function.
Signed-off-by: NRob Herring <rob.herring@calxeda.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Kukjin Kim <kgene.kim@samsung.com>
Acked-by: NShawn Guo <shawn.guo@linaro.org>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: David Brown <davidb@codeaurora.org>
Cc: Daniel Walker <dwalker@fifo99.com>
Cc: Bryan Huntsman <bryanh@codeaurora.org>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Magnus Damm <magnus.damm@gmail.com>
Cc: Dinh Nguyen <dinguyen@altera.com>
Cc: Viresh Kumar <viresh.linux@gmail.com>
Cc: Shiraz Hashim <shiraz.hashim@st.com>
Cc: Stephen Warren <swarren@wwwdotorg.org>
Cc: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com>
Cc: Linus Walleij <linus.walleij@linaro.org>

Now that the GIC initialization sets up the handle_arch_irq pointer, we
can remove it for all machines and make it static.
Signed-off-by: NRob Herring <rob.herring@calxeda.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Anton Vorontsov <avorontsov@mvista.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: David Brown <davidb@codeaurora.org>
Cc: Daniel Walker <dwalker@fifo99.com>
Cc: Bryan Huntsman <bryanh@codeaurora.org>
Acked-by: NTony Lindgren <tony@atomide.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Magnus Damm <magnus.damm@gmail.com>
Cc: Dinh Nguyen <dinguyen@altera.com>
Cc: Shiraz Hashim <shiraz.hashim@st.com>
Acked-by: NStephen Warren <swarren@nvidia.com>
Cc: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Acked-by: NViresh Kumar <viresh.kumar@linaro.org>
Acked-by: NKukjin Kim <kgene.kim@samsung.com>
Acked-by: NShawn Guo <shawn.guo@linaro.org>
Acked-by: NOlof Johansson <olof@lixom.net>
Acked-by: NArnd Bergmann <arnd@arndb.de>

Now that the only field in struct sys_timer is .init, delete the struct,
and replace the machine descriptor .timer field with the initialization
function itself.

This will enable moving timer drivers into drivers/clocksource without
having to place a public prototype of each struct sys_timer object into
include/linux; the intent is to create a single of_clocksource_init()
function that determines which timer driver to initialize by scanning
the device dtree, much like the proposed irqchip_init() at:
http://www.spinics.net/lists/arm-kernel/msg203686.html

Includes mach-omap2 fixes from Igor Grinberg.
Tested-by: NRobert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: NStephen Warren <swarren@nvidia.com>

In order to start upstreaming Broadcom SoC support, create
a starting hierarchy, arch and dts files.
The first support SoC family that is planned is the
BCM281XX (BCM11130/11140/11351/28145/28155) family of dual A9 mobile
SoC cores.
This code is just the skeleton code for get the machine upstreamed. It
has been made MULTIPLATFORM compatible.
Next steps
----------
Upstream a basic set of drivers - sufficient for a console boot to
ramdisk. These will includer timer, gpio, i2c drivers.
After this basic set, we will proceed with a more comprehensive set
of drivers for the 281XX SoC family.

v2 patch mods
--------
 - Remove l2x0_of_init call as there were problems with the code.
   A separate patch will be submitted with cache init code
 - Rename capri files and refs to bcm281xx-based names
 - Add bcm281xx binding doc
 - various misc cleanups

v3 patch mods
-------------
 - Remove extra #include lines
 - Remove remaining references to capri
 - dt uart chipset string added
 - cleaned up chip # references

v4 patch mods
-------------
 - swap order of compatible definitions for uart
 - fix typo

v5 patch mods
-------------
 - Rename bcm281xx to bcm11351 in dts+code,
   leaving references to bcm281xx only in help+comments.

v6 patch mods
-------------
 - fix typo in uart 'compatible' string
Signed-off-by: NChristian Daudt <csd@broadcom.com>
Reviewed-by: NStephen Warren <swarren@nvidia.com>
Signed-off-by: NOlof Johansson <olof@lixom.net>