Handling System MMUs with an identifier is not flexible to manage
System MMU platform devices because of the following reasons:
1. A device driver which needs to handle System MMU must know the ID.
2. A System MMU may not present in some implementations of Exynos family.
3. Handling System MMU with IOMMU API does not require an ID.
This patch is the result of removing ID of System MMUs.
Instead, a device driver that needs to handle its System MMU must
use IOMMU API while its descriptor of platform device is given.
This patch also includes the following enhancements:
- A System MMU device becomes a child if its power domain device.
- clkdev
Signed-off-by: KyongHo Cho <pullip.cho@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
This patch changes prefix of the clk register from S5P_ to
EXYNOS4_ for new EXYNOS SoCs such as EXYNOS5 and adds prefix
exynos4_ on clk declarations.
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
This patch changes the name of clock.c to clock-exynos4.c for other
EXYNOS series such as EXYNOS5. And since the header file of clock
is used only in arch/arm/mach-exynos, moves it in the local directory.
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Fixed following build warning with exynos4_defconfig.
arch/arm/mach-exynos/clock.c:33: warning: 'exynos4_clock_save' defined but not used
arch/arm/mach-exynos/clock-exynos4210.c:35: warning: 'exynos4210_clock_save' defined but not used
arch/arm/mach-exynos/clock-exynos4212.c:35: warning: 'exynos4212_clock_save' defined but not used
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
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: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
The arch/arm/mach-exynos4 directory (CONFIG_ARCH_EXYNOS4) has
made for plaforms based on EXYNOS4 SoCs. But since upcoming
Samsung's SoCs such as EXYNOS5 (ARM Cortex A15) can reuse most
codes in current mach-exynos4, one mach-exynos directory will
be used for them.
This patch changes to CONFIG_ARCH_EXYNOS (arch/arm/mach-exynos)
but keeps original CONFIG_ARCH_EXYNOS4 in mach-exynos/Kconfig to
avoid changing in driver side.
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
