Since SYSRAM set the L2 cache latency on EXYNOS5 SoCs,
no longer need that in the kernel. It helps to reduce
booting time (no need cache disable and cache enable).
Signed-off-by: NBoojin Kim <boojin.kim@samsung.com>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

irq_of_parse_and_map does not have an empty definition for the
!CONFIG_OF case, so we should not try to call it then:

arch/arm/mach-exynos/common.c: In function 'combiner_init':
arch/arm/mach-exynos/common.c:576:3: warning: implicit declaration of function 'irq_of_parse_and_map'
Signed-off-by: NArnd Bergmann <arnd@arndb.de>

Add device tree based instantiation of the interrupt combiner controller.
Signed-off-by: NThomas Abraham <thomas.abraham@linaro.org>
Acked-by: NRob Herring <rob.herring@calxeda.com>
Acked-by: NGrant Likely <grant.likely@secretlab.ca>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

Add irq_domain support for hardware interrupts of the interrupt combiner.
The hardware interrupts of all the instances of the combiner are grouped
in a single irq_domain.

Cc: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: NThomas Abraham <thomas.abraham@linaro.org>
Acked-by: NRob Herring <rob.herring@calxeda.com>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

A seperate bus_type instance is not required for EXYNOS5. The
existing bus_type instance used with EXYNOS4 is sufficient for
both EXYNOS4 and EXYNOS5. This also solves issue of uninitialized
usage of exynos4_subsys in EXYNOS4 power management code that is
reused for EXYNOS5 also. In addition to that, the existing
exynos4_subsys bus_type is renamed to exynos_subsys to indicate
that it is reused on both EXYNOS4 and EXYNOS5 platforms.
Signed-off-by: NThomas Abraham <thomas.abraham@linaro.org>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

Adapt to changes in GIC physical address in rev1 of EXYNOS5.
Signed-off-by: NChanghwan Youn <chaos.youn@samsung.com>
Signed-off-by: NThomas Abraham <thomas.abraham@linaro.org>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

Signed-off-by: NShawn Guo <shawn.guo@linaro.org>
Acked-by: NKukjin Kim <kgene.kim@samsung.com>

Fixed following compile time error.
arch/arm/mach-exynos/common.c: In function 'exynos5_init_irq':
arch/arm/mach-exynos/common.c:539:2: error: implicit declaration of function 'of_irq_init'
arch/arm/mach-exynos/common.c:539:14: error: 'exynos4_dt_irq_match' undeclared (first use in this function)
arch/arm/mach-exynos/common.c:539:14: note: each undeclared identifier is reported only once for each function it appears in

Cc: Thomas Abraham <thomas.abraham@linaro.org>
Signed-off-by: NTushar Behera <tushar.behera@linaro.org>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

Use the of_irq_init() call to setup the gic which also properly
registers the gic device node pointer with gic irq domain,
without which all interrupt specifier translations for gic fail.
Signed-off-by: NThomas Abraham <thomas.ab@samsung.com>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

With the addition of platform specific driver data in the sdhci driver
for EXYNOS4 and EXYNOS5, the device name of sdhci controllers on EXYNOS4
and EXYNOS5 are changed accordingly.
Signed-off-by: NThomas Abraham <thomas.abraham@linaro.org>
[kgene.kim@samsung.com: re-worked on top of v3.4-rc2]
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

ISO C90 forbids mixed declarations and code.
Fix it.
Signed-off-by: NIl Han <corone.il.han@gmail.com>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

This patch changes to use ioremap() for EXYNOS4210
so that we can drop the static mapping for EXYNOS
SoCs.

Note: Will be updated for all of Samsung GPIOlibs
to use ioremap() next time.
Signed-off-by: NSangsu Park <sangsu4u.park@samsung.com>
Acked-by: NGrant Likely <grant.likely@secretlab.ca>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

The GPIOs of EXYNOS4 and EXYNOS5 are changed to use
ioremap instead of static mapping. It alse causes the
change of external interrupt IO mapping. This patch
changes EXYNOS4 to EXYNOS for common use and changes
EINT_x macros for supporting dynamic IO mapping.
Signed-off-by: NEunki Kim <eunki_kim@samsung.com>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

This patch adds the interrupt definitions for EXYNOS5250 at
<mach/irqs.h> file and it is needed for EXYNOS5250 SoC.
As a note, for single zImage of EXYNOS4 and EXYNOS5, prefix
of EXYNOS4_ and EXYNOS5_ has been added.
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

This patch add support for EXYNOS5250 SoC has two Cortex-A15 cores.
Since actually, most codes in mach-exynos/ are used commonly for
EXYNOS4 and EXYNOS5 the EXYNOS5/EXYNOS5250 has been implemented
in mach-exynos/.
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

Actually, the base address of uart is different between EXYNOS4
and EXYNOS5 and this patch enables to support uart for EXYNOS4
and EXYNOS5 SoCs at runtime.
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

Since exynos4_init_uarts() can be used for EXYNOS5 SoCs,
this patch changes the name of function to exynos_init_uarts().
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

According to commit cc511b8d ("ARM: 7257/1: EXYNOS: introduce
arch/arm/mach-exynos/common.[ch]"), we don't need to declare extern
for exynos4_map_io(), exynos4_init_clocks(), exynos4_init_uarts(),
and exynos_init(). And the exynos4210_register_clocks() and
exynos4212_register_clocks depend on each SoC not ARCH_EXYNOS4.
So this patch fixed above.
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

- Add DMC1
- Enlarge address space for DMC from 4k to 64k so that PPMU registers
  may be accessed.
Signed-off-by: NMyungJoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: NKyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

This patch enables calling generic l2 setup functions if device tree is used.
Signed-off-by: NAmit Daniel Kachhap <amit.kachhap@linaro.org>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

This patch adds code to save L2 register configuration at boot, and
later used to resume L2 before MMU is enabled in suspend and cpuidle
resume paths.
Signed-off-by: NLorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: NAmit Daniel Kachhap <amit.kachhap@linaro.org>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

This patch removes the simplistic implementation of irq_domains and enables
the powerpc infrastructure for all irq_domain users.  The powerpc
infrastructure includes support for complex mappings between Linux and
hardware irq numbers, and can manage allocation of irq_descs.

This patch also converts the few users of irq_domain_add()/irq_domain_del()
to call irq_domain_add_legacy() instead.

v3: Fix bug that set up too many irqs in translation range.
v2: Fix removal of irq_alloc_descs() call in gic driver
Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Milton Miller <miltonm@bga.com>
Tested-by: NOlof Johansson <olof@lixom.net>

Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

This is equivalent and more similar to existing architectures.
Signed-off-by: NNicolas Pitre <nico@linaro.org>

Hook these platforms restart code into the new restart hook rather
than using arch_reset().

[kgene.kim@samsung.com: according to local header, updated]
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

This patch introduces common.[ch] which are used only in the
arch/arm/mach-exynos/ directory. The common.c file merges
the cpu.c, init.c, irq-combiner.c and irq-eint.c files which
are used commonly on EXYNOS SoCs and the common.h file replaces
with plat/exynos4.h file.

Cc: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>