Since commit af337f3e63
"ARM: S3C2443: Move parts of the clock code to common clock file",
the init_clocks array is moved to arch/arm/plat-s3c24xx/s3c2443-clock.c.
Now we call s3c_register_clocks for init_clocks in s3c2443_common_init_clocks.
Thus we can remove the empty init_clocks array here and remove the
redundant s3c_register_clocks call for init_clocks in s3c2443_init_clocks.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Previously the fclk rate was calculated by dividing the pll through
the divider value of the armdiv. With a real armdiv clk in place it's
possible to simply read its value, which does essentially the same.
This change makes the whole fdiv_fn function pointers supplied to
s3c2443_common_init_clocks and s3c2443_common_setup_clocks
obsolete, so remove it too.
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
The system-layout of the armdiv and armclk is common to
S3C2443/S3C2416/S3C2450 and only differs in the array of
possible dividers. Therefore it is possible to reuse the
clock definitions for all of these SoCs.
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
This is needed for making the armdiv clock common to S3C2443
and S3C2416/2450.
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
S3C2416/S3C2450 use the same clocks for their i2s blocks
and can therefore reuse the existing ones.
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
The changed statement should set the old armdiv bits to 0
and not everything else, before setting the new value.
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Define maps for HSMMC devices.
S3C2443 has one HSMMC device with base address 0x4A800000.
S3C2416 has HSMMC0 at 0x4AC00000 and HSMMC1 at 0x4A800000.
So suppose that S3C2443 has only HSMMC1.
Define clock for hsmmc0 device and register it.
Signed-off-by: Yauhen Kharuzhy <jekhor@gmail.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (44 commits)
vlynq: make whole Kconfig-menu dependant on architecture
add descriptive comment for TIF_MEMDIE task flag declaration.
EEPROM: max6875: Header file cleanup
EEPROM: 93cx6: Header file cleanup
EEPROM: Header file cleanup
agp: use NULL instead of 0 when pointer is needed
rtc-v3020: make bitfield unsigned
PCI: make bitfield unsigned
jbd2: use NULL instead of 0 when pointer is needed
cciss: fix shadows sparse warning
doc: inode uses a mutex instead of a semaphore.
uml: i386: Avoid redefinition of NR_syscalls
fix "seperate" typos in comments
cocbalt_lcdfb: correct sections
doc: Change urls for sparse
Powerpc: wii: Fix typo in comment
i2o: cleanup some exit paths
Documentation/: it's -> its where appropriate
UML: Fix compiler warning due to missing task_struct declaration
UML: add kernel.h include to signal.c
...
To share code with some of the newer parts such as the S3C2416, move
parts of arch/arm/mach-s3c2443/clock.c to a common file called
arch/arm/plat-s3c24xx/s3c2443-clock.c.
Update the build configuration to deal with this new file.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Add s3c_disable_clocks() and change the clock registration code to use
the s3c_register_clocks() followed by s3c_disable_clocks() instead of
the loops it was using.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
The clk_mpll has long been moved into common clock code, remove the
code completely instead of the nasty #if 0 block.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Move more of the core clocks that where left over from the last commit
as they are much more core to the system operation. This should allow
for easier tracking of any problems.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
The S3C2443 clock code could easily make use of the clksrc implementation
in plat-samsung for many of the clocks. Make the clocks that easily move
to clksrc-clk over, update any initialisation and remove the old register
definitions from the header file (it is only being used once).
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Add common clock gate code for each of the S3C2443 clock gate code. Whether
to move this elsewhere will be decided later.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Add s3c_register_clocks() to register an array of clocks, printing
an error message if there is a problem. Replace all points in the code
where this could be used.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Reduce the size of struct clk by 12 bytes and make defining clocks with
common implementation functions easier by moving the set_rate, get_rate,
round_rate and set_parent calls into a new structure called 'struct clk_ops'
and using that instead.
This change does make a few clocks larger as they need their own clk_ops,
but this is outweighed by the number of clocks with either no ops or having
a common set of ops.
Update all the users of this.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
As per Russell King's last review comment, find and remove
all unnecessary includes of <linux/delay.h> in the files
that do not need them.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
The S3C64XX timer is running at the wrong rate due to the
assumptions made in the timer initialisation about the way
the pwm dividers work. This means that time on the S3C64XX
runs twice as fast as it should.
Fix the problem by moving to using the clk framework to setup
the pwm timer clock muxes, as the pwm-clock code has all the
necessary knowledge of how the timer clock inputs are routed.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Add the initial clocks definitions for the s3c6400
and s3c6410. Move the epll and ext clock from the
s3c2443 support into the common code.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Update the clock settings on resume for suspend/resume
support so that if the boot loader changes anything or
the system's PLL is reset then we return with the correct
settings.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Fix the calculation of HCLK on the S3C2443, it should not
have been passed through S3C2443_CLKDIV0_HALF_HCLK.
Re-work of original patch from Wei Shuai <cpuwolf@gmail.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
First move of items out of include/asm-arm/plat-s3c* to their
new homes under arch/arm/plat-s3c/include/plat and
arch/arm/plat-s3c24xx/include/plat directories.
Note, we have to create a dummy arch/arm/plat-s3c/Makefile to
allow us to add arch/arm/plat-s3c/include/plat to the path.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Remove includes of asm/hardware.h in addition to asm/arch/hardware.h.
Then, since asm/hardware.h only exists to include asm/arch/hardware.h,
update everything to directly include asm/arch/hardware.h and remove
asm/hardware.h.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Update the S3C2443 clock support to add the prediv clock
that is sourced via a divider from msysclk. Also fix the
setting of p and h clocks from this prediv clock.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
s3c2443_clkcon_enable_p() was reading from the correct register
S3C2443_PCLKCON, but then writing the value back to the wrong
register S3C2443_HCLKCON.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Fix the various misspellings of "system", controller", "interrupt" and
"[un]necessary".
Signed-off-by: Robert P. J. Day <rpjday@mindspring.com>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Fix sparse warnings in the arch/arm/mach-s3c2443/clock.c,
including an bug in initialising the cf clock initialiser
where two values are being set for the ctrlbit.
arch/arm/mach-s3c2443/clock.c:397:12: warning: symbol 'clk_usb_bus_host' was not declared. Should it be static?
arch/arm/mach-s3c2443/clock.c:760:4: error: Initializer entry defined twice
arch/arm/mach-s3c2443/clock.c:761:4: also defined here
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Add the clocks missing form HCLKCON back into the set of
clocks being registered at initalisation time.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This adds the ac97 clock to the s3c2443 machine files. It seems to
have been simply missed out previously.
Signed-off-by: Graeme Gregory <gg@opensource.wolfsonmicro.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Add arch/arm/mach-s3c2443 for support of the Samsung S3C2443 SoC
This patch adds the core CPU support, clock framework, times
and initial IRQ support, as well as adding the directory into
the build tree.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Axel Lin